Help With UPDATE With SqlDataSource And A Repeater
Jan 15, 2006
Hi,
I have a repeater which i need to build editing capabilities into in a similar way as the GridView, just a little unsure how to tie it together. Ideally i would like to use a GridView as this would do all of the work for me however it looks like I need to go with the repeater due to the nested nature of the data I am working with.
What is the best way to go about updating the data source from within a repeater? I have already built the edit interface with some MultiViews in the Repeater control and handling the ItemCommand event, just not sure how to actually update the data source.
Can I still use the SqlDataSource wizard to generate all of the SQL for me? If so, within the ItemCommand event handler I have the data i want to update back to the database by using the FindControl method and retrieving the Text, but how do i get this data into the SqlDataSource object and update the database?
Are there any samples available which show how to update a datasource using a repeater?
Your help is much appreciated
trenyboy
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Dec 6, 2006
Compilation Error
Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.
original source code
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:DatabaseConnectionString %>" SelectCommand="SELECT [authorID], [firstname] FROM [author] where id=1" ></asp:SqlDataSource>
<asp:Repeater ID="rpt" DataSourceID="SqlDataSource1" runat="server">
<ItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Style="z-index: 100; left: 65px; position: absolute;
top: 59px" Text='<%# authorID %>' ></asp:TextBox>
<asp:TextBox ID="TextBox2" runat="server" Style="z-index: 101; left: 66px; position: absolute;
top: 96px" Text='<%# firstName %>'></asp:TextBox>
</ItemTemplate>
</asp:Repeater>
<asp:Button ID="Button1" runat="server" Style="z-index: 102; left: 46px; position: absolute;
top: 164px" Text="next" />
<asp:Button ID="Button2" runat="server" Style="z-index: 103; left: 102px; position: absolute;
top: 163px" Text="first" />
<asp:Button ID="Button3" runat="server" Style="z-index: 104; left: 156px; position: absolute;
top: 162px" Text="prev" />
<asp:Button ID="Button4" runat="server" Style="z-index: 106; left: 208px; position: absolute;
top: 162px" Text="last" />
</div>
</form>
Compiler Error Message: CS0103: The name 'authorID' does not exist in the current contextSource Error:
Line 13: <asp:Repeater ID="rpt" DataSourceID="SqlDataSource1" runat="server">
Line 14: <ItemTemplate>
Line 15: <asp:TextBox ID="TextBox1" runat="server" Style="z-index: 100; left: 65px; position: absolute;
Line 16: top: 59px" Text='<%# authorID %>' ></asp:TextBox>
Line 17: <asp:TextBox ID="TextBox2" runat="server" Style="z-index: 101; left: 66px; position: absolute;
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May 10, 2006
I want to update two tables in one page. So I created two FormView bound on two SqlDataSource controls, and I create a Update button on the bottom of page. And I writen some codes as below:
btnUpate_Click(object sender, EventArgs e){
sqlDataSource1.Update();
sqlDateSource2.Update();}
But, the records haven't updated.
In SqlDataSource2_Updating() function, I found all the parameters is null.
So, how to modify my code to do it.
Zhang
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Sep 21, 2006
I'm new to ASP.NET and i've been banging my head aganist this problem for a few days now.I have a repeater and then a repeater inside that repeater. <asp:SqlDataSource ID="sqlRepeater1" runat="server" ConnectionString="<%$ ConnectionStrings:Inspections_DBCS %>" SelectCommand="SELECT count(*) as mycount FROM insuranceco with (NOLOCK) where insurancecoid=@insurancecoid" OnSelecting="sqlRepeater_Selecting" > <SelectParameters> <asp:Parameter DefaultValue='' Name="insurancecoid" Type="String" /> </SelectParameters> </asp:SqlDataSource> <% 'sqlRepeater1.SelectParameters["insurancecoid"].DefaultValue = "123"; %>This returns:Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately. Compiler Error Message: BC30451: Name 'sqlRepeater1' is not declared.Source Error:Line 38: Line 39: <% Line 40: sqlRepeater1.SelectParameters["insurancecoid"].DefaultValue = "123";Line 41: %>Line 42: I tried a solution i saw on the web about using the onselecting event but that didn't pan out either Protected Sub sqlRepeater_Selecting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceSelectingEventArgs) 'Handles sqlRepeater1.Selecting WithEvents 'Response.Write(e.Command.Parameters.Add) 'e.Command.Parameters.Add(e.Command.CreateParameter("P1", "test")) 'e.Command.Parameters.Add("P1", "value")I have to be doing something wrong because i would think there has to be a way to reference variables when you are going from repeater to repeater i just dont know.Please help my mask of sanity is starting to slip off.Thanks
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May 25, 2008
Hi there,
In 2005.NET, if I used an asp:repeater, I would load the data from source and then manipulate it like so://load the data from source using a predefined connection and SQL Statement.private void LoadMyDataFromSource(){ try { connection.Open(); OleDbDataReader myReader = comm.ExecuteReader(); rptrCatList.DataSource = myReader; rptrCatList.DataBind(); myReader.Close(); } finally { connection.Close(); }} //catch the ItemDataBound event and manipulate the data how I wish before it's loaded into the Repeater.protected void rptrCatList_ItemDataBound(object sender, RepeaterItemEventArgs e) { if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) { int title = 4; //this is the index of the column I wish to manipulate((Label)e.Item.FindControl("lblTitle")).Text = ((IDataRecord)e.Item.DataItem).GetString(title) + ":" } }This would give me all the flexbility I ever needed. But now I wish to use linq and since the IDataRecord relies on dataReader sources, I cannot obtain the same flexbility. Can anyone point me in the right direction for obtaining the same kind of flexbility but using a linq-to-SQL dataContext? I wish to manipulate mostData that comes through from my source, so: //loadng the data in via my linq-to-sql context.private void LoadProducts() { MyDataContext db = new MyDataContext (); var all = from p in db.Products_IncontinenceStandards where p.Product_Cat == "Category1" select p; rpterCat.DataSource = all; rpterCat.DataBind(); }This is where I get stuck because, even though I can still capture the ItemDataBound event since I have databound the Repeater to the linqSource, I can't access the individual fields (or this is what I think I can't do!), Does anyone know how to relate to this so I can create the same effect? Many Thanks,Nathan Channon
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Sep 6, 2006
I'm new to ASP and ASP.NET so I used the Wizards in Visual Web Deverlopment Express 2005 to build the following code:<asp:DetailsView ID="DetailsView" runat="server" DataSourceID="TracksDataSource"
Height="50px" Width="125px" AutoGenerateEditButton="True" AutoGenerateRows="False">
<Fields>
<asp:BoundField DataField="pk_trackID" HeaderText="pk_trackID" ReadOnly="True" SortExpression="pk_trackID" />
<asp:BoundField DataField="trackName" HeaderText="trackName" SortExpression="trackName" />
<asp:BoundField DataField="trackPath" HeaderText="trackPath" SortExpression="trackPath" />
<asp:BoundField DataField="lyrics" HeaderText="lyrics" SortExpression="lyrics" />
</Fields>
</asp:DetailsView>
<asp:SqlDataSource ID="TracksDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:connectionString %>"
SelectCommand="SELECT * FROM [Tracks] WHERE ([pk_trackID] = @pk_trackID)" UpdateCommand="UPDATE [Tracks] SET [trackName] = @trackName, [trackPath] = @trackPath, [lyrics] = @lyrics WHERE [pk_trackID] = @pk_trackID" >
<UpdateParameters>
<asp:Parameter Name="trackName" Type="String" />
<asp:Parameter Name="trackPath" Type="String" />
<asp:Parameter Name="lyrics" Type="String" />
<asp:Parameter Name="pk_trackID" Type="String" />
</UpdateParameters>
<SelectParameters>
<asp:ControlParameter ControlID="TracksListBox" Name="pk_trackID" PropertyName="SelectedValue" Type="String" />
</SelectParameters>
</asp:SqlDataSource> However, when I click Edit, change something, and then Update it doesn't update the database. However, if I remove the DataField bindings and use the AutoGenerateRows feature it works fine.
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Nov 6, 2006
One of the requirements of the UpdateParameters for a GridView I'm building is that the fields that are being edited via EditItemTemplates are passed back to the UpdateParameter as XML. How would I go about combining the fields from the GridView/EditItems into an XML string that I can set as an asp:Parameter?
Thanks.
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Mar 15, 2007
OK guys, I'm sure I'm doing something stupid here but after 2 days I find myself extremely frusted... Any help would be appreciated
I'm tring to write an update procedure for an SqlDataSource control that will allow me to chage the primary key values of a record in the table. Everything seems to work fine with the exception of obtaining the old values (the primary key before its changed by the end user) during the update. I've read several articles on the web an in the forums on this topic. Much of it has to do with the .NET beta version alteration from "original_{0}" to "{0}". I believe those conversations do not describe my problem.
Anyhow, onto some source code. Here's the ASP source code for a grid view and sql data source. <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
DataKeyNames="productName,productURL" DataSourceID="SqlDataSource1" EmptyDataText="There are no data records to display.">
<Columns>
<asp:CommandField ShowSelectButton="True" />
<asp:BoundField DataField="productName" HeaderText="productName" ReadOnly="True"
SortExpression="productName" />
<asp:BoundField DataField="productURL" HeaderText="productURL" ReadOnly="True" SortExpression="productURL" />
<asp:BoundField DataField="productSupportURL" HeaderText="productSupportURL" SortExpression="productSupportURL" />
<asp:BoundField DataField="description" HeaderText="description" SortExpression="description" />
<asp:BoundField DataField="modified" HeaderText="modified" SortExpression="modified" />
<asp:BoundField DataField="userid" HeaderText="userid" SortExpression="userid" />
<asp:BoundField DataField="useridDomain" HeaderText="useridDomain" SortExpression="useridDomain" />
<asp:BoundField DataField="sortOrder" HeaderText="sortOrder" SortExpression="sortOrder" />
</Columns>
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:SBAAdminConnectionString1 %>"
DeleteCommand="DELETE FROM [homePageList] WHERE [productName] = @old_productName AND [productURL] = @old_productURL"
InsertCommand="INSERT INTO [homePageList] ([productName], [productURL], [productSupportURL], [description], [modified], [userid], [useridDomain], [sortOrder]) VALUES (@productName, @productURL, @productSupportURL, @description, @modified, @userid, @useridDomain, @sortOrder)"
ProviderName="<%$ ConnectionStrings:SBAAdminConnectionString1.ProviderName %>"
SelectCommand="SELECT [productName], [productURL], [productSupportURL], [description], [modified], [userid], [useridDomain], [sortOrder] FROM [homePageList]"
UpdateCommand="UPDATE homePageList SET productSupportURL = @productSupportURL, description = @description, modified = @modified, userid = @userid, useridDomain = @useridDomain, sortOrder = @sortOrder, productName = @productName, productURL = @productURL WHERE (productName = @original_productName) AND (productURL = @original_productURL)" OldValuesParameterFormatString="original_{0}">
<DeleteParameters>
<asp:Parameter Name="old_productName" Type="String" />
<asp:Parameter Name="old_productURL" Type="String" />
</DeleteParameters>
<UpdateParameters>
<asp:Parameter Name="description" Type="String" />
<asp:Parameter Name="modified" Type="DateTime" />
<asp:Parameter Name="userid" Type="String" />
<asp:Parameter Name="useridDomain" Type="String" />
<asp:Parameter Name="sortOrder" Type="Single" />
<asp:Parameter Name="productName" Type="String" />
<asp:Parameter Name="productURL" Type="String" />
<asp:Parameter Name="productSupportURL" Type="String" />
<asp:ControlParameter ControlID="GridView1" Direction="InputOutput" Name="original_productName"
PropertyName="SelectedValue" />
<asp:ControlParameter ControlID="GridView1" Direction="InputOutput" Name="original_productURL"
PropertyName="SelectedValue" />
</UpdateParameters>
<InsertParameters>
<asp:Parameter Name="productName" Type="String" />
<asp:Parameter Name="productURL" Type="String" />
<asp:Parameter Name="productSupportURL" Type="String" />
<asp:Parameter Name="description" Type="String" />
<asp:Parameter Name="modified" Type="DateTime" />
<asp:Parameter Name="userid" Type="String" />
<asp:Parameter Name="useridDomain" Type="String" />
<asp:Parameter Name="sortOrder" Type="Single" />
</InsertParameters>
</asp:SqlDataSource>I added a text box for every field in the grid to the form and update the fields when the user selects a record in the GridView. I then added an Update button to the form and tied the event to this procedure: Protected Sub bUpdate_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles bUpdate.Click
'if the user has not entered key fields!
If missingKeyFields() Then
Exit Sub
End If
Dim count, so As Integer
Dim uDomain, uid As String
'parse out the user id and domain.
Try
If HttpContext.Current.User.Identity.Name = "" Then
uid = "unknow"
uDomain = "unknown"
Else
uid = HttpContext.Current.User.Identity.Name
uid = uid.Substring(uid.IndexOf("") + 1)
uDomain = uid.Substring(0, uid.IndexOf("") - 1)
End If
Catch ex As Exception
uid = "unknow"
uDomain = "unknown"
End Try
'fill in the parameters
'@productName, @productURL, @productSupportURL, @description, @modified, @userid, @useridDomain, @sortOrder
Me.SqlDataSource1.UpdateParameters.Item("productName").DefaultValue = Me.tbProductName.Text
Me.SqlDataSource1.UpdateParameters.Item("productURL").DefaultValue = Me.tbProductURL.Text
Me.SqlDataSource1.UpdateParameters.Item("productSupportURL").DefaultValue = Me.tbProductSupportURL.Text
Me.SqlDataSource1.UpdateParameters.Item("description").DefaultValue = Me.tbProductDescription.Text
Me.SqlDataSource1.UpdateParameters.Item("modified").DefaultValue = Now
Me.SqlDataSource1.UpdateParameters.Item("userid").DefaultValue = uid
Me.SqlDataSource1.UpdateParameters.Item("useridDomain").DefaultValue = uDomain
Me.SqlDataSource1.UpdateParameters.Item("sortOrder").ConvertEmptyStringToNull = True
If Integer.TryParse(Me.tbSortOrder.Text, so) Then
Me.SqlDataSource1.UpdateParameters.Item("sortOrder").DefaultValue = so
Else
Me.SqlDataSource1.UpdateParameters.Item("sortOrder").DefaultValue = ""
End If
'insert the record.
count = Me.SqlDataSource1.Update()
Me.lCommandInfo.Text = count.ToString + " record was updated."
End Sub
The net result of the procedure is the message "0 record was updated." when I select a record in the gridView and then edit the "productName" field and click Update.
In an attempt to trace down the problem I added this code: Protected Sub SqlDataSource1_Updating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceCommandEventArgs) Handles SqlDataSource1.Updating
Message.Text = e.Command.CommandText
Message.Text += "<br>"
For lp As Integer = 0 To e.Command.Parameters.Count - 1
Message.Text += e.Command.Parameters(lp).ParameterName + "=" + e.Command.Parameters(lp).Value
Message.Text += "<br>"
Next
End Sub
The message label displays the following text:UPDATE homePageList SET productSupportURL = @productSupportURL, description = @description, modified = @modified, userid = @userid, useridDomain = @useridDomain, sortOrder = @sortOrder, productName = @productName, productURL = @productURL WHERE (productName = @original_productName) AND (productURL = @original_productURL)
@description=interesting!
@modified=3/15/2007 4:07:31 PM
@userid=unknow
@useridDomain=unknown
@sortOrder=
@productName=ok22
@productURL=http
@productSupportURL=http
@original_productName=ok
@original_productURL=ok
Notice how the "@original_productURL" has the same value as the "@original_productName"? This should not be the case. The @original_productURL should equal "http" since I didn't update the field's value. It seems like the second field of the primary key is not getting updated or passed to the @original_productURL parameter. Since .NET handles the @original_{0} parameters I don't know why the field isn't being properly updated.
Any thoughts on how to track down the root cause of my problem... Or better yet any thoughts on a work around to my problem?
Thanks,Johnny
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Jun 14, 2007
I need to know how to setup the ControlParameter for a template control in my Gridview? I have a datepicker in my template and I need to know how to refer to it in the ControlParameter of the SQLDataSource control.
<UpdateParameters>
<asp:ControlParameter Name="dp_start" ControlID="bdpPlanStart" PropertyName="SelectedValue" Type="Datetime" /> Here is the template:<asp:TemplateField HeaderText="Start" SortExpression="dp_start">
<ItemTemplate>
<%#DataBinder.Eval(Container, "DataItem.dp_start", "{0:d}")%>
</ItemTemplate>
<EditItemTemplate>
<BDP:BasicDatePicker id="bdpPlanStart" SelectedValue='<%# DataBinder.Eval(Container.DataItem,"dp_start") %>' runat="server" DateFormat="d">
</BDP:BasicDatePicker>
</EditItemTemplate>
</asp:TemplateField>
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Nov 7, 2007
I am trying to reload an AJAX control without reloading the page. This question may belong under AJAX, but I'm not sure if I'm managing the SqlDataSource correctly. I want to set the SelectCommand to a new SQL statement and refresh the form on the screen. My code is below. It doesn't seem to be working. Do I need to call something else or is this correct and the problem is with that nasty AJAX?SqlDataSource oSqlDataSource1 = (SqlDataSource) oContentPlaceHolder1.FindControl("SqlDataSource1");oSqlDataSource1.SelectCommand = "SELECT * FROM WorkHistory WHERE WorkHistoryID = " + sWorkHistoryID;oSqlDataSource1.Select(DataSourceSelectArguments.Empty);
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Jan 16, 2008
Is there a way to have two sql update commands so I can use both during an update depending on which row it is?
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Feb 8, 2008
I have a number of textboxes in a WizardStep of my CreateUserWizard and I can't update the contents to the database (see below for an example). Any suggestions would be appreciated. Dim txt As TextBox = cuwMoreInfo.FindControl("txtAddress")
srcMoreInfo.UpdateParameters("Address").DefaultValue = DirectCast(txt, TextBox).Text
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Apr 5, 2008
Hi All,
i want to use sqldatasource with controlparameters.there are some textboxes and a dropdownlist on my page.i can easily insert and delete records on database table by using these controls as controlparameters by sqldatasource insert() and delete() method but updating fails.i use try catch block to see the error but no errors found.And also update() method returns 1 that indicates that it worked fine but when i look into the database i see that the record is not updated.i am stucked and surprised.any ideas please?
Thanks
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Apr 18, 2008
I just want to update a single file on the table with the content of a text box
the sql statement is update GAMME set newvaleur=@newvaleur where product_ID=old_product_ID
on sqldatasource1 updating I wrote
E.COMMAND.PARAMETERS("@newvaleur").value=....
e.command.parameters("old_product_id").value=....
the thing is it doesn't work, I don't think the line with the old_product_id is ok but I don't know how to do it...
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Oct 29, 2006
So I have code to fill my repeater with a data: Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Dim cnn As Data.SqlClient.SqlConnection = New Data.SqlClient.SqlConnection(System.Web.Configuration.WebConfigurationManager.ConnectionStrings("db_ConnStr").ConnectionString) Dim cmd1 As Data.SqlClient.SqlDataAdapter = New Data.SqlClient.SqlDataAdapter("SELECT aspnet_Users.UserName, COUNT(forum_posts.post_id) AS IlePost, forum_posts_1.post_content, forum_posts_1.topic_id, forum_posts_1.post_id, forum_posts_1.post_date FROM aspnet_Users INNER JOIN forum_posts ON aspnet_Users.uID = forum_posts.user_id INNER JOIN forum_posts AS forum_posts_1 ON aspnet_Users.uID = forum_posts_1.user_id GROUP BY aspnet_Users.UserName, forum_posts_1.post_content, forum_posts_1.topic_id, forum_posts_1.post_id, forum_posts_1.post_date HAVING (forum_posts_1.topic_id = @topic_id) ORDER BY forum_posts_1.post_date ASC", cnn) cmd1.SelectCommand.Parameters.AddWithValue("@topic_id", Request.QueryString("ID")) Dim ds As Data.DataSet = New Data.DataSet cnn.Open() cmd1.Fill(ds, "posts") Repeater1.DataSource = ds.Tables("posts") Page.DataBind() cnn.Close() End Sub And I want to take the value from column which I bolded - IlePost. I want take this out at compare with some condition. For example:Dim label as label = Repeater1.Findcontrol("Label1")If COLUMN < 10 thenlabel.text = "Less than 10"elselabel.text = "More than 10"I hope you understand me :-)
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Mar 11, 2007
Hello Everyone,I am trying to create a query for the purpose of a nested repeater relation. The information needs to be pulled from one table. I have shortened the columns to the ones that are required.table - PagesIDPageNameParentPageIDSo, take the following example:ID 14, PageName - Service A, ParentPage ID = 6ID 15, PageName - Service B, ParentPage ID = 6ID 36 PageName - Client 1, ParentPage ID = 14ID 37 PageName - Client 2, ParentPage ID = 14ID 38 PageName - Client 3, ParentPage ID = 15ID 39 PageName - Client 4, ParentPage ID = 15 So, I want to create a query that will get my nested repeater to display as follows:Service A Client 1 Client 2Service B Client 3 Client 4What I have come up with so far is:SELECT * from tbl_Pages WHERE ParentPageID IN (Select ID From tbl_Pages)SELECT p.ParentPageID, p.PageName, p.ID FROM tbl_Pages pThe relation would be based off ParentPageID. I keep getting errors that either there is no unique value or the relation is null. What am I am missing here?
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Jun 15, 2007
Hell Sir,
I am using repeater control to show the result after search .and using checkbox control in itemtemplate row .After searchresult i am facing a problem in identifying the checked checkboxes in the itemtemplate of repeater control .
Please provide appropriate solution ....
thanks for ur attention...
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May 14, 2008
Hi,
I'm coming from a language called Progress and need some basic help with SQL and ASP.net
Here's my item table from database with 6 recordscolor fruit
red applered bananared cherryblue appleblue bananablue cherry
My goal is to put in HTML tables like so..
red
apple
banana
cherry
blue
apple
banana
cherry
I was going to use the ASP.net Repeater control by doing with some SQL statement that will produce this 6 records with a calculated field..
color fruit firstColorInFruitGroupred apple yesred banana nored cherry noblue apple yesblue banana noblue cherry no
So basically when I see a yes thats when I know its a <TH>"heading"
When I see a no, thats when I see that its a <TD> "data"
How would I write this SQL statement? or is there a better way of doing this? Thanks much!
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Jun 4, 2008
I need to set a Repeater.Datasource to one of three stored procedures depending on what button the user selects. How do I set it up please?<asp:SqlDataSource ID="SqlDataSource5" runat="server" ConnectionString="<%$ ConnectionStrings:ABCConnectionString %>"SelectCommand="???????????????" SelectCommandType="StoredProcedure"><SelectParameters><asp:ControlParameter ControlID="???????????????????" Name="?????????????" PropertyName="Text" Type="string" /></SelectParameters></asp:SqlDataSource>
protected void btnKeyWordSearch_Click(object sender, ImageClickEventArgs e){ mode = 1; StoredProcdureName = "KWSearch"; KWords = tbxKWordText.Text;}protected void btnCompanyNameSearch_Click(object sender, ImageClickEventArgs e){ mode = 1; StoredProcdureName = "NAMESearch"; CoName = tbxCoNameText.Text;}protected void btnBrandNameSearch_Click(object sender, ImageClickEventArgs e){ mode = 1; StoredProcdureName = "BRANDSearch"; Brand = tbxBrandText.Text;}
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Feb 15, 2005
I want to build some paging functionality into my repeater (b4 you ask, datagrid not providing flexibility required for presentation).
I will have no problem with the VB logic but I will need to execute SQL that only returns results from x to y (e.g. results 21 thru 40 for page 2). I know I can do something like 'SELECT TOP 20 * FROM...', or something like it, for page 1. But, I'm not sure if it's possible to build SQL for the pages greater than 1. Any suggestions.
Thanks
Martin
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Aug 29, 2005
Q1 - I want to compare file names uploaded by users with the name of the file present in the database. I have a repeated control that shows the data alongwith an array of <input type=file> that is createddynamically when the data is displayed in the repeater control. (So there is an input tag within the ItemTEmplate tag in the repeater)Now I want to compare the names of the files uploaded by the user with the values as displayed in the repeater. Is there a way I can do this? So I need to be able to get the data (for example Name) as displayed in the repeater control into a variable like Dim strName As String. Something like: Dim strName As String = (value from the repeater control) Can I do this? How?
Q2 - I want to return a value from a stored procedure that will be stored in a variable in VB and will be used for comparison. So, I want to return a 0 or 1 and then use .ReturnValue method to store this value. The problem that I am facing is that I am using a cursor. And as soon as return is called in the SP it exitsthe procedure and returns only one value (1 if found 0 otherwise) So it does not loop through the completecursor. What can I do to fix this? CODE:
OPEN cur1--print 'Cursor Open'FETCH NEXT FROM cur1 INTO @varFile, @varFileEx, @varFileSt
WHILE @@FETCH_STATUS = 0BEGINIF (@varFile = @FileName AND @varFileEx = @FileExt)BEGINset @varReturn = 0ENDELSE BEGINset @varReturn = 1ENDFETCH NEXT FROM cur_FileSystem INTO @varFileName, @varFileExt, @varFileStatusreturn (@varReturn)ENDCLOSE cur_FileSystemDEALLOCATE cur_FileSystem
Please help. Thanks
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Jul 10, 2006
I'm passing a parameter to a stored procedure stored on my sqlserver, or trying to atleast. And then firing off the update command that contains that parameter from a button. But it's not changing my data on my server when I do so.
I'm filling a dropdown list from a stored procedure and I have a little loop run another sp that grabs what the selected value should be in the dropdown list when the page loads/refreshes. All this works fine, just not sp that should update my data when I hit the submit button.
It's supposed to update one of my tables to whatever the selected value is from my drop down list. But it doesn't even change anything. It just refreshes the page and goes back to the original value for my drop down list.
Just to make sure that it's my update command that's failing, I've even changed the back end data manually to a different value and on page load it shows the proper selected item that I changed the data to, etc. It just won't change the data from the page when I try to.
This is what the stored procedure looks like:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ALTER PROCEDURE [dbo].[UPDATE_sp] (@SelectedID int) AS
BEGIN
UPDATE [Current_tbl]
SET ID = @SelectedID
WHERE PrimID = '1'
END
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
And here's my aspx page:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Editor.aspx.vb" Inherits="Editor" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Data Verification Editor</title>
</head>
<body>
<form id="form1" runat="server">
<asp:SqlDataSource ID="SQLDS_Fill" runat="server" ConnectionString="<%$ ConnectionStrings:Test %>"
SelectCommand="Current_sp" SelectCommandType="StoredProcedure" DataSourceMode="DataSet">
</asp:SqlDataSource>
<asp:SqlDataSource ID="SQLDS_Update" runat="server" ConnectionString="<%$ ConnectionStrings:Test %>"
SelectCommand="Validation_sp" SelectCommandType="StoredProcedure" DataSourceMode="DataReader"
UpdateCommand="UPDATE_sp" UpdateCommandType="StoredProcedure">
<UpdateParameters>
<asp:ControlParameter Name="SelectedID" ControlID="Ver_ddl" PropertyName="SelectedValue" Type="Int16" />
</UpdateParameters>
</asp:SqlDataSource>
<table style="width:320px; background-color:menu; border-right:menu thin ridge; border-top:menu thin ridge; border-left:menu thin ridge; border-bottom:menu thin ridge; left:3px; position:absolute; top:3px;">
<tr>
<td colspan="2" style="font-family:Tahoma; font-size:10pt;">
Please select one of the following:<br />
</td>
</tr>
<tr>
<td colspan="2">
<asp:DropDownList ID="Ver_ddl" runat="server" DataSourceID="SQLDS_Update" DataTextField="Title"
DataValueField="ID" style="width: 100%; height: 24px; background: gold">
</asp:DropDownList>
</td>
</tr>
<tr>
<td style="width:50%;">
<asp:Button ID="Submit_btn" runat="server" Text="Submit" Font-Bold="True"
Font-Size="8pt" Width="100%" />
</td>
<td style="width:50%;">
<asp:Button ID="Done_btn" runat="server" Text="Done" Font-Bold="True"
Font-Size="8pt" Width="100%" />
</td>
</tr>
<tr>
<td colspan="2">
<asp:Label runat="server" ID="Saved_lbl" style="font-family:Tahoma; font-size:10pt;"></asp:Label>
</td>
</tr>
</table>
</form>
</body>
</html>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
And here's my code behind:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Imports System.Data
Imports System.Data.SqlClient
Partial Class Editor
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
Saved_lbl.Text = ""
Done_btn.Attributes.Add("OnClick", "window.location.href='Rpt.htm';return false;")
Dim View1 As New DataView
Dim args As New DataSourceSelectArguments
View1 = SQLDS_Fill.Select(args)
Dim Row As DataRow
For Each Row In View1.Table.Rows
Ver_ddl.SelectedValue = Row("ID")
Next Row
SQLDS_Fill.Dispose()
End Sub
Protected Sub Submit_btn_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Submit_btn.Click
SQLDS_Update.Update()
Saved_lbl.Text = "Thank you. Your changes have been saved."
SQLDS_Update.Dispose()
End Sub
End Class
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Any help is much appreciated.
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Aug 3, 2006
I'm referring to this bug, which I've seen a lot of people (including me) run into:
http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=93937
Has anyone heard if MS plans to fix this soon?
Thanks
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Feb 13, 2007
Hi,I'm trying to create a registration page that I've divided into multiple pages (first page for basic details, next page for address, etc.). I insert the record in the first page, and update it in the other pages. I pass the newly created ID to the other pages using the Page.PreviousPage property. In the second page, I have the SqlDataSource configured as "SELECT * FROM [Table] WHERE ID = ?", and the UpdateCommand is "UPDATE .... WHERE ID = ?". In Page_Load, I am updating the SelectCommand to "SELECT ... WHERE ID = " & intID, and the UpdateCommand similarly. The I do a dtlsvw.Databind()But when I go to the next page (the newly created ID is being passed properly), the update doesn't do anything. The new record doesn't contain the values in the detailsview. Can somebody help me out? Thanks,Wild Thing
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Mar 16, 2007
I have a Gridview (edit enabled), connected to a SQLDataSource.
SQLDataSource populates the gridview from 1 SelectCommand.
figure1:
ColumnA | ColumnB | ColumnC
I have 2 SQL Server 2005 tables: Table1 and Table2
Now on my SQLDataSource's UpdateCommand, I want the value of ColumnB to go to Table1's ColumnB, and ColumnC to go to Table2's ColumnC.
How do I do this?
I understand I can't do this with 1 UPDATE-SET sql query. Maybe I can with stored procs or something, but im kinda noobish when it comes to this. How? Thanks
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May 29, 2007
Hi, I have such a problem:I try to update (or insert) a row in my table and i fail althought i,ve read many posts here. I.ve created a button and "on_click" event to this button and want that event to update or insert a record in my table. I wrote: protected void selectButton_Click(object sender, EventArgs e) { String taskID = projectsGridView.SelectedRow.Cells[0].Text; usersSqlDataSource.UpdateCommand = "update [Users] set [TaskID]=@task where [UserID]=1"; usersSqlDataSource.UpdateParameters.Add("task", taskID); usersSqlDataSource.Update(); } The application creates error in the last line of code (usersSqlDataSource.Update();) and i receive such an error:You have specified that your update command compares all values on SqlDataSource 'usersSqlDataSource', but the dictionary passed in for oldValues is empty. Pass in a valid dictionary for update or change your mode to OverwriteChanges. For me it looks like there is a problem while setting parameters. Shall i change some properties of the sqlDataSource or GridView? Please help..
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Jul 3, 2007
ello all
Would someone be so kind as to save me from getting balder through pulling my hair out.
My aim is to extract data from a database using SQLDataSource, then edit the data and update the database using the SQLDataSource.
I have achieve the problem of retrieving the data from the sqlDataSource:DataView openRemindingSeats = (DataView)SqlDataSource2.Select(DataSourceSelectArguments.Empty); //Int32 openRemindingSeats = SqlDataSource2.Select(DataSourceSelectArguments.Empty), DataView;
foreach (DataRowView rowProduct in openReminding) { //Output the name and price lbl_NumOfSeatsLeft.Text = rowProduct["Remaining"].ToString();
}
Within the sqlDataSource the sql code is as follows:SELECT [refNumber], [refRemaining] FROM [refFlights] WHERE ([refNumber] = @Number)
So at the moment my problems is being able to edit and update data to the same SELECTed data.Thank you for any help that you might have...
SynDrome
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Jun 9, 2008
Does anyone know why would SQLDataSource.Update method return a negative value even though its updating records correctly?Its happening with .NET 2.0.
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Jan 3, 2006
Hello Guys,
I’m trying to create a sqlDataSource using the wizard, I can get the select statement, the here clause and the order by clause but when I click on the Advanced button the options to generate the insert, update and delete statements are not available. Does anyone know what am I doing wrong?
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Jan 26, 2006
Here is the problem.
I have table such as this
PK selection VARCHARPK selection_choice VARCHAR show BIT
When I use the sqlDataSource to create an update it creates this.UPDATE lu_selection_choices SET show = @show WHERE (selection = @selection) AND (selection_choice = @selection_choice)
Now this is OK, but when you perform an update and in say a details control you change the selection_choice the value of the parameter @selection_choice is going to be equal to the old data. So it performs a successful update on show which isn't being changed selection_choice is.
So the questions is. Is there anyway to tell the update function of the datasource to insert the a new parameter with the SET selection_choice = @SOME NEW PARAM slection_choice?
Thanks,
Darren King
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Jun 13, 2006
Hi - I'm using .net2, and have a gridview, populated by a SQL Datasource (Edit, Insert, Delete, Select).
Like we all used to do with the datagrid, I've added text boxes into the footer, and a link button, which I'd like to use to fire the Update command.
How do I get the link button to trigger the update command?
Thanks, Mark
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Jul 4, 2006
i have default.aspx file and i put SqlDataSource into my designer form.when i want to configure SqlDataSource it not allowed my to insert, update and delete only insert is allowed.what is the problem and the solution for this case ...thx
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Feb 3, 2007
Hi all:
I have a list of items (actually a relation in which a user has selected an item, along with a rating for the item) in an Access database table, connected to my app with a SqlDataSource and bound to a repeater. The repeater displays the items to the user along with a dropdown box to show the rating, and allow the user to update it. The page connects and displays correctly.
My problem is that when the user submits the page and I iterate through the repeater items to update each rating, the updates are not being completed in the database. The update works if I hard-code a value for the rating into the query itself, but not when using an updateparameter (pTaskRating below). In other words if I replace pTaskRating with '5', all the correct records will be found and have their ratings updated to 5. That means that the mySurveyId and pTaskId(DefaultValue) parameters have to be working, because the right records are found, but I can't seem to update records based on the DefaultValue of the pTaskRating parameter, even though I can verify that the DefaultValue is correct by placing a watch on it. It seems that my problem must be in my use of that particular parameter in the query, either in properties of the parameter or in the value assigned to it. I am extremely frustrated - any ideas would be greatly, greatly appreciated. Thanks!
Bruck
The table I'm pulling from and updating looks like this:
SURVEY_ID (Text 50), TASK_ID (Long Int), RATING_ID (Long Int)
Here's my ASPX for the main data source:
<asp:SqlDataSource ID="sqlTaskSelections" runat="server" ConnectionString='Provider=Microsoft.Jet.OLEDB.4.0;Data Source="abc.mdb";Persist Security Info=True;Jet OLEDB:Database Password=xyz' ProviderName="System.Data.OleDb" SelectCommand="SELECT [SURVEY_ID], [TASK_ID], [RATING_ID] FROM [TBL_TASK_SELECTION] WHERE [SURVEY_ID] = mySurveyId" UpdateCommand="UPDATE [TBL_TASK_SELECTION] SET [RATING_ID] = pTaskRating WHERE ([SURVEY_ID] = mySurveyId) AND ([TASK_ID] = pTaskId)">
<UpdateParameters>
<asp:SessionParameter Name="mySurveyId" SessionField="SurveyId" DefaultValue="" /><asp:Parameter Name="pTaskId" DefaultValue="" /><asp:Parameter Name="pTaskRating" DefaultValue="" />
</UpdateParameters>
And here's the repeater (the Task ID and Rating are stored in hidden fields for easy access later):
<asp:Repeater ID="rptTaskSelections" runat="server">
<HeaderTemplate><table border="0"></HeaderTemplate>
<ItemTemplate>
<tr class="abctr"><td class="normal"><asp:DropDownList ID="cbRatings" runat="server"></asp:DropDownList><asp:HiddenField ID="hTaskId" Runat="server" Visible="false" Value='<%# Eval("TASK_ID") %>' /><asp:HiddenField ID="hRating" Runat="server" Visible="false" Value='<%# Eval("RATING_ID") %>' /> <%# Eval("TASK_ID") %></td></tr>
</ItemTemplate>
<FooterTemplate></td></tr></table></FooterTemplate>
</asp:Repeater>
And here's the page load and submit VB:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
'BIND / LOAD RATINGS TO DROPDOWN BOXES HEREDim i As IntegerDim cbCurrentRating As DropDownListDim hCurrentRating As HiddenFieldrptTaskSelections.DataSource = sqlTaskSelectionsrptTaskSelections.DataBind()
For i = 0 To rptTaskSelections.Items.Count - 1
cbCurrentRating = rptTaskSelections.Items(i).FindControl("cbRatings")hCurrentRating = rptTaskSelections.Items(i).FindControl("hRating")
cbCurrentRating.DataSource = sqlRatingscbCurrentRating.DataTextField = "RATING"cbCurrentRating.DataValueField = "ID"cbCurrentRating.DataBind()cbCurrentRating.SelectedValue = hCurrentRating.Value
Next
End If
End Sub
Protected Sub btnSubmitRateTasks_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSubmitRateTasks.Click
'UPDATE RATINGS HERE
Dim i As IntegerDim cbCurrentRating As DropDownListDim hCurrentTaskId As HiddenField
For i = 0 To rptTaskSelections.Items.Count - 1
cbCurrentRating = rptTaskSelections.Items(i).FindControl("cbRatings")hCurrentTaskId = rptTaskSelections.Items(i).FindControl("hTaskId")
sqlTaskSelections.UpdateParameters.Item("pTaskId").DefaultValue = hCurrentTaskId.ValuesqlTaskSelections.UpdateParameters.Item("pTaskRating").DefaultValue = cbCurrentRating.SelectedValue
sqlTaskSelections.Update()
Next
Response.Redirect("nextpage.aspx")
End Sub
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