Updatecommand Not Working With SqlDataAdapter
Aug 14, 2007
I know there are loads of posts on this, but this just will not update. I have tried various forms of the code all to no avail. And now I'm ready to throw my PC out the window........
What am I doing wrong?
cheers Mike
Dim da As SqlDataAdapterDim dSetOrp As DataSet
oCn = New SqlConnection(db.m_ConnectionString)
oCn.Open()da = New SqlDataAdapter("Select * from contact WHERE conid = " & lngConId, oCn)
dSetOrp = New DataSet
da.Fill(dSetOrp, "locTable") ' Fill the DataSet.
dSetOrp.Tables(0).Rows(0)("ConSttDate") = dtEffDateDim myBuilder As SqlCommandBuilder = New SqlCommandBuilder(da)
myBuilder.GetUpdateCommand()
da.UpdateCommand = myBuilder.GetUpdateCommand()
lRows = da.Update(dSetOrp, "locTable")
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Aug 1, 2006
I have added a gridview and under its properties i have changed AutoGenerateDeleteButton and AutoGenerateEditButton to true.
The problem is... when I try and delete a record, I get this error: Deleting is not supported by data source 'SqlDataSource1' unless DeleteCommand is specified
If I try and update.. i get the error: Updating is not supported by data source 'SqlDataSource1' unless UpdateCommand is specified.
Can someone please help me out... maybe with some code... or a link to a tutorial..
Thanks
Canning
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Dec 28, 2006
Hello everyone,
I am a bit new to ASP .Net so forgive me, if I dont understand something right off.
I am writing a page that gets code from the SQL database and puts it into a GridView. To get the information I am using SqlDataSource. I cant post an error message because I am running this off remote server but though testing I figure that it crashes when I add
Analysis = @Analysis
line into the UpdateCommand. First I thought that maybe my parameters were not read correcty but when I tried something like
Analysis = 6
it worked. Then I tried to replace CQNo=@CQNo with
CQNo = @Analysis
and it also worked.
I am very much puzzed at this. In SQL database CQNo is varchar, WorkDate is DateTime and Analysis is Money type.
Can someone please help, I am out of ideas. Thanks!
<asp:SqlDataSource ID="myEfforts" runat="server"
SelectCommand="SELECT SNo, CQNo, WorkDate, Analysis, Design, Coding, Testing, DesRev, CodeRev, PeerRev, SysTest, PostInstall, Others, TotEff FROM Effort WHERE EmpId = @EmpId ORDER BY WorkDate DESC"
DeleteCommand="DELETE FROM Effort WHERE SNo=@SNo"
UpdateCommand="UPDATE Effort SET CQNo = @CQNo, WorkDate=@WorkDate Analysis=@Analysis WHERE SNo=@SNo">
<SelectParameters>
<asp:SessionParameter DefaultValue="" Name="EmpId" SessionField="PR_EmpIDVal" Type="String" />
</SelectParameters>
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Apr 13, 2007
I have a custom setup so bear with me here in my explanation. The SelectCommand for my SQLDataSource gets data from a table using a QueryString for filtering by the record ID. A Repeater control is then used to populate the data into different Textboxes on the page (and a custom HTML-editor control). This works 100%. I'm trying to use the UpdateCommand for the SQLDataSource to then update the record with the data that the user changes. (Example: FieldA is "foo" and the user changes it to "foobar". When the form is submitted, it then updates FieldB to be "foobar"). The form is being submitted, but the data isn't being updated at all. Any ideas? Thanks for the help in advance.
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May 11, 2006
I have a SQLDataSource that has an UpdateCommand assigned to it. At certain times I may need to change the UpdateCommand to save different info to the database. I thought I would be able to use sqldatasource.updatecommand.equals() to change the UpdateCommand and then call the sqldatasource.update method, but it didn't work...the default command was still used. Is there something else I need to change? I figured my next option would be to create another sqldatasource. Any help would be great!
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Oct 15, 2007
Hello all,
I am trying to update the record which involed the modification of key in Datakeynames, but when i click the update button from gridview, it doesn't allow to change the value of modified column.
<asp:SqlDataSource ID="SqlDataSource1" runat="server" DataSourceMode="DataSet" ConnectionString="<%$ ConnectionStrings:WebsiteDataConnection %>" OldValuesParameterFormatString="old_{0}" SelectCommand="SELECT * FROM [ServiceAgents]" InsertCommand="INSERT INTO ServiceAgents VALUES(@Ser_STATE, @Ser_CITY, @Ser_AGENT, @Ser_PHONE, @Ser_EQUIPMENT)" UpdateCommand="UPDATE ServiceAgents SET AGENT=@AGENT, PHONE=@PHONE WHERE (STATE=@STATE and CITY=@CITY and AGENT=@old_AGENT and EQUIPMENT=@EQUIPMENT)" DeleteCommand="DELETE FROM ServiceAgents WHERE (STATE=@STATE and CITY=@CITY and AGENT=@AGENT and EQUIPMENT=@EQUIPMENT)" > <UpdateParameters> <asp:Parameter Type="String" Name="AGENT" /> <asp:Parameter Type="String" Name="PHONE" /> <asp:Parameter Name="old_AGENT" /> <asp:Parameter Type="String" Name="STATE" /> <asp:Parameter Type="String" Name="CITY" /> <asp:Parameter Type="String" Name="EQUIPMENT" /> </UpdateParameters> <InsertParameters> <asp:ControlParameter Name="Ser_STATE" ControlID="TextBox_state"/> <asp:ControlParameter Name="Ser_CITY" ControlID="TextBox_city"/> <asp:ControlParameter Name="Ser_AGENT" ControlID="TextBox_agent"/> <asp:ControlParameter Name="Ser_PHONE" ControlID="TextBox_phone"/> <asp:ControlParameter Name="Ser_EQUIPMENT" ControlID="TextBox_equip" /> </InsertParameters> <DeleteParameters> <asp:Parameter Type="String" Name="STATE" /> <asp:Parameter Type="String" Name="CITY" /> <asp:Parameter Type="String" Name="AGENT" /> <asp:Parameter Type="String" Name="EQUIPMENT" /> </DeleteParameters> </asp:SqlDataSource>
Does anyone got any ideas about it? Where is wrong in the control?
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Oct 22, 2007
SqlDataSource UpdateCommand plus Insert
I have a SqlDataSource with an UpdateCommand but besides that i need also an Insert command triggered on the same update command.
That´s because i need to update a record and at the same time include a log of that update in another database.
Thanks
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Mar 6, 2006
Hi
I have a Page with a DetailsView and SqlDataSource. When Editing the DetailsView the Sql;DataSource UpdateCommand does not seem to pick up the @parameters of the form fields. I have used OnItemUpdating to view all Keys/OldValues/NewValues passed into the UpdateCommand but nothing seems to be picked up.
When I place a value into UpdateCommand it updates correctly but does not when I use the form. At this stage I have simplified the code down to typical Master-Details Pages (Separate) using a QueryString to filter the SelectCommand. But nothing seems to work.
Please help! I have wasted so much time trying to resolve this and I am on deadline and need this to work.
Thanks
Dave
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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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Jun 5, 2007
hi all,i'm working on a formview which will update 2 tables which are linked together but..i'm getting an error of the control not being found.my code is as shown below <asp:SqlDataSource ID="invDetSrc" runat="server" ConnectionString="<%$ ConnectionStrings:rockwellConnectionString %>" ProviderName="<%$ ConnectionStrings:rockwellConnectionString.ProviderName %>" SelectCommand="SELECT rockwell.logix_asset_list.Inventory_ID, rockwell.vendor.Vendor_Name, rockwell.logix_asset_list_category.Category_Name, rockwell.logix_asset_list.Total_Quantity, rockwell.logix_asset_list.Quantity_In_Stock, rockwell.logix_asset_list.Part_Number, rockwell.logix_asset_list.On_Order, rockwell.logix_asset_list.ImageUrl, rockwell.logix_asset_list.DrawingUrl, rockwell.logix_asset_list.Description FROM rockwell.logix_asset_list, rockwell.logix_asset_list_category, rockwell.vendor WHERE rockwell.logix_asset_list.Logix_Asset_List_Category_ID = rockwell.logix_asset_list_category.Logix_Asset_List_Category_ID AND rockwell.logix_asset_list.Vendor_ID = rockwell.vendor.Vendor_ID AND rockwell.logix_asset_list.Part_Number = ?" UpdateCommand="UPDATE vendor, logix_asset_list set vendor.vendor_name= @Vendor_Name, logix_asset_list.Total_Quantity=@Total_Quantity, logix_asset_list.Quantity_In_Stock=@Quantity_In_Stock, logix_asset_list.Part_Number=@Part_Number, logix_asset_list.On_Order=@On_Order, logix_asset_list.Description=@Description WHERE logix_asset_list.Vendor_ID = vendor.Vendor_ID and logix_asset_list.Inventory_ID = @Inventory_ID" > <SelectParameters> <asp:ControlParameter ControlID="rstGrid" Name="?" PropertyName="SelectedValue" /> </SelectParameters> <UpdateParameters> <asp:ControlParameter Type="Int32" ControlID="Total_Quantity" ConvertEmptyStringToNull="true" Name="@Total_Quantity"/> <asp:ControlParameter Type="string" ControlID="Vendor_Name" ConvertEmptyStringToNull="true" Name="@Vendor_Name"/> <asp:ControlParameter Type="Int32" ControlID="Quantity_In_Stock" ConvertEmptyStringToNull="true" Name="@Quantity_In_Stock"/> <asp:ControlParameter Type="string" ControlID="Part_Number" ConvertEmptyStringToNull="true" Name="@Part_Number"/> <asp:ControlParameter Type="string" ControlID="On_Order" ConvertEmptyStringToNull="true" Name="@On_Order"/> <asp:ControlParameter Type="string" ControlID="Description" ConvertEmptyStringToNull="true" Name="@Description"/> <asp:ControlParameter Type="Int32" ControlID="Inventory_ID" ConvertEmptyStringToNull="true" Name="@Inventory_ID"/> </UpdateParameters> </asp:SqlDataSource> <asp:FormView ID="FormView1" runat="server" BackColor="White" BorderColor="#DEDFDE" BorderStyle="None" BorderWidth="1px" CellPadding="4" DataSourceID="invDetSrc" ForeColor="Black" GridLines="Vertical" DataKeyNames="Inventory_ID"> <EditItemTemplate> <table border="0" cellpadding="3" cellspacing="3" style="background-color: white; color: black;"> <tr> <td colspan="2"> <asp:Image ID="Image1" runat="server" Height="150px" ImageUrl='<%# "~/Image/photo/Logix%20Asset/"+Eval("Category_Name")+"/"+Eval("ImageUrl") %>' Width="150px" /> <br /> <asp:HyperLink ID="drawingLink" runat="server" NavigateUrl='<%# "~/Image/drawing/Logix%20Asset/"+Eval("Category_Name")+"/"+Eval("DrawingUrl") %>' Target="_blank" Text="View Drawing" ForeColor="Blue"></asp:HyperLink> </td> <asp:HiddenField ID="HiddenField1" runat="server" Value='<%# Bind("Inventory_ID") %>' /> </tr> <tr> <td style="color: black"> Part Number:</td> <td> <asp:TextBox ID="Part_Number" runat="server" Text='<%# Bind("Part_Number")%>'></asp:TextBox> </td> </tr> <tr> <td> <strong style="color: black">Vendor:</strong></td> <td> <asp:TextBox ID="Vendor_Name" runat="server" Text='<%# Bind("Vendor_Name")%>'></asp:TextBox> </td> </tr> <tr> <td style="color: black"> <strong>Total Quantity:</strong></td> <td> <asp:TextBox ID="Total_Quantity" runat="server" Text='<%# Bind("Total_Quantity")%>'></asp:TextBox> </td> </tr> <tr> <td style="color: black"> <strong>Quantity In Stock:</strong></td> <td> <asp:TextBox ID="Quantity_In_Stock" runat="server" Text='<%# Bind("Quantity_In_Stock")%>'></asp:TextBox> </td> </tr> <tr> <td style="color: black"> <strong>Quantity on Order:</strong></td> <td> <asp:TextBox ID="On_Order" runat="server" Text='<%# Bind("On_Order")%>'></asp:TextBox> </td> </tr> <tr> <td style="color: black; height: 44px;"> <strong>Description:</strong></td> <td style="height: 44px"> <asp:TextBox ID="Description" runat="server" Text='<%# Bind("Description")%>' Height="53px" TextMode="MultiLine" Width="150px"></asp:TextBox></td> </tr> <tr> <td> <asp:Button ID="EditBtn" runat="server" Text="Submit Changes" Width="106px" CommandName="Update" /></td> <td> <asp:Button ID="Cancel" runat="server" Text="Cancel" CommandName="cancel" /></td> </tr> </table> </EditItemTemplate> </asp:FormView>any help would be much appreciated!
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Jul 20, 2007
We've got an employee database that I'm modifying to include two photos of each employee, a small thumbnail image and a full-size image. The HR department maintenance page contains a listbox of employee names, which, when clicked, populates a detailsview control.To get the images to display and be updatable, I've had to structure the following SqlDatasource and DetailsView:
1 <asp:DetailsView ID="dvEmp" runat="server"2 AutoGenerateRows="false"3 DataSourceID="dsEmpView"4 DataKeyNames="empID">5 <Fields>6 <asp:CommandField ShowEditButton="true" ShowCancelButton="true" ShowInsertButton="true" />7 <asp:BoundField HeaderText="Name (Last, First)" DataField="empname" />8 <asp:TemplateField HeaderText="Thumbnail photo">9 <ItemTemplate>10 <asp:Image ID="imgThumbnail" runat="server" ImageUrl='<%# formatThumbURL(DataBinder.Eval(Container.DataItem,"empID")) %>' />11 </ItemTemplate>12 <EditItemTemplate>13 <asp:Image ID="imgThumbHidden" runat="server" ImageUrl='<%# Bind("thumbURL") %>' Visible="false" />14 <asp:FileUpload ID="upldThumbnail" runat="server" />15 </EditItemTemplate>16 </asp:TemplateField>17 <asp:TemplateField HeaderText="Full Photo">18 <ItemTemplate>19 <asp:Image ID="imgPhoto" runat="server" ImageUrl='<%# formatImageURL(DataBinder.Eval(Container.DataItem,"empID")) %>' />20 </ItemTemplate>21 <EditItemTemplate>22 <asp:Image ID="imgPhotoHidden" runat="server" ImageUrl='<%# Bind("photoURL") %>' Visible="false" />23 <asp:FileUpload ID="upldPhoto" runat="server" />24 </EditItemTemplate>25 </asp:TemplateField>26 </Fields>27 </asp:DetailsView>28 29 <asp:SqlDataSource ID="dsEmpView"30 runat="server"31 ConnectionString="<%$ ConnectionStrings:eSignInConnectionString %>"32 OnInserting="dsEmpView_Inserting"33 OnUpdating="dsEmpView_Updating"34 SelectCommand="SELECT empID, empname, photoURL, thumbURL FROM employees where (empID = @empID)"35 InsertCommand="INSERT INTO employees (empname, photoURL, thumbURL) values(@empname, @photoURL, @thumbURL)"36 UpdateCommand="UPDATE employees SET empname=@empname, photoURL=@photoURL, thumbURL=@thumbURL WHERE (empID = @empID)">37 <SelectParameters>38 <asp:ControlParameter ControlID="lbxEmps" Name="empID" PropertyName="SelectedValue" Type="Int16" />39 </SelectParameters>40 </asp:SqlDataSource>41 42 -----43 44 Protected Sub dsEmpView_Updating(ByVal sender As Object, ByVal e As SqlDataSourceCommandEventArgs)45 Dim bAbort As Boolean = False46 Dim bThumb(), bPhoto() As Byte47 If e.Command.Parameters("@ename").Value.trim = "" Then bAbort = True48 Dim imgT As FileUpload = CType(dvEmp.FindControl("upldThumbnail"), FileUpload)49 If imgT.HasFile Then50 Using reader As BinaryReader = New BinaryReader(imgT.PostedFile.InputStream)51 bThumb = reader.ReadBytes(imgT.PostedFile.ContentLength)52 e.Command.Parameters("@thumbURL").Value = bThumb53 End Using54 End If55 Dim imgP As FileUpload = CType(dvEmp.FindControl("upldPhoto"), FileUpload)56 If imgP.HasFile Then57 Using reader As BinaryReader = New BinaryReader(imgP.PostedFile.InputStream)58 bPhoto = reader.ReadBytes(imgP.PostedFile.ContentLength)59 e.Command.Parameters("@photoURL").Value = bPhoto60 End Using61 End If62 e.Cancel = bAbort63 End SubIf the user updates both images at the same time by populating their respective FileUpload boxes, everything works as advertized. But if the user only updates one image (or neither image), things break. If they upload, say, just the full-size photo during an update, then it gives the error "System.Data.SqlClient.SqlException: Operand type clash: nvarchar is incompatible with image".I think this error occurs because the update command is trying to set the parameter "thumbURL" without having any actual data to set. But since I really don't want this image updated with nothing, thereby erasingthe photo already in the database, I'd rather remove this parameter from the update string.So, let's remove the parameter that updates that image by adding the following code just after the "End Using" lines: Else
Dim p As SqlClient.SqlParameter = New SqlClient.SqlParameter("@thumbURL", SqlDbType.Image)
e.Command.Parameters.Remove(p)
(Similar code goes into the code block that handles the photo upload)Running the same update without an image in the thumb fileupload box, I now get this error: "System.ArgumentException: Attempted to remove an SqlParameter that is not contained by this SqlParameterCollection."Huh? It's not there? Okay, so lets work it from the other end: let's remove all references to the thumbURL and photoURL from the dsEmpView datasource. We'll make its UpdateCommand = "UPDATE employees SET empname=@empname WHERE (empID = @empID)", and put code in the dsEmpView_Updating sub that adds the correct parameter to the update command, but only if the fileupload box has something in it. Therefore: If imgT.HasFile Then
Using reader As BinaryReader = New BinaryReader(imgT.PostedFile.InputStream)
bThumb = reader.ReadBytes(imgT.PostedFile.ContentLength)
e.Command.Parameters.Add(New SqlClient.SqlParameter("@thumbURL", SqlDbType.Image, imgT.PostedFile.ContentLength))
e.Command.Parameters("@thumbURL").Value = bThumb
End Using
End If
(Similar code goes into the code block that handles the photo upload)But reversing the angle of attack only reverses the error. Uploading only the photo and not the thumb image results in: "System.Data.SqlClient.SqlException: The variable name '@photoURL' has already been declared. Variable names must be unique within a query batch or stored procedure."So now it's telling me the parameter IS there, even though I just removed it.ARRRGH!What am I doing wrong, and more importantly, how can I fix it?Thanks in advance.
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Aug 1, 2007
Hi, All
I'm using Gridview and SqlDataSource to dynamically display the contents in different tables, as followed:
<% dataSource.ConnectionString = System.Configuration.ConfigurationSettings.AppSettings["connectionString"]; dataSource.SelectCommand = "SELECT * FROM " + tableName; gridView.DataBind();
dataSource.UpdateCommand = "";%>
<asp:SqlDataSource ID="dataSource" runat="server"></asp:SqlDataSource><asp:GridView ID="gridView" runat="server" DataSourceID="dataSource" AllowPaging="True" AllowSorting="True" AutoGenerateEditButton="True" BorderColor="Silver" BorderStyle="Solid" BorderWidth="1px" CellPadding="3" PageSize="20" DataKeyNames="ID" OnRowDataBound="tableGridView_RowDataBound"> <HeaderStyle BackColor="#C0C0FF" /> <AlternatingRowStyle BackColor="#C0FFC0" /></asp:GridView>
The datasource take the "tableName" as argument to determine which table to display. My problem is I can't figure out a way to programmatically construct the UpdataCommand for the SqlDataSource. I try to get the field names from the HeaderRow, but all the cells are empty in this row.
Does anyone know what causes the problem or how to construct the UpdateCommand properly. Thanks!
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Nov 7, 2007
Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information.
I am getting the above error if i try to create a update command through a Command builder in .net cf on a SQLCE 3.0 database
The Select query I used for creating the update command is 'SELECT * FROM Users'
I populated a datatable with the above query through a DataAdapter, to check for the primary key and the primary key was available in the table. But still the CB could not able to create an Update Command for that query,
The Primary Key column that I use is of type GUID
Then when try to do the above job using a Typed DataSet with TableAdapters , then it throws the following error
'Update requires a valid UpdateCommand when passed DataRow Collection with modified rows'
can any one please tell me a way to fix this ,
Thanks and Regards
Varadan
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Mar 9, 2006
Hi all
I have a GridView on an aspx page, that is enabled for editing, deletion and sorting.
In the Page_Load event of the aspx page, i add a SqlDataSource to the page, and bind the source to the GridView.
When i click the update, or delete button, it makes a PostBack, but nothing is affected. I'm sure this has got something to do with the parameters.
First, i tried having the GridView.AutoGenerateColumns set to True. I have also tried adding the columns manually, but no affect here either.
The code for setting the commands, and adding the SqlDataSource to the page are as follows:
string strConn = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString; string strProvider = ConfigurationManager.ConnectionStrings["ConnectionString"].ProviderName; string selectCommand = "SELECT * FROM rammekategori"; SqlDataSource ds = new SqlDataSource(strProvider, strConn, selectCommand); ds.ID = "RammeKategoriDS"; ds.UpdateCommand = "UPDATE rammekategori SET Kategoribeskrivelse = @Kategoribeskrivelse WHERE (Kategorinavn = @Kategorinavn)"; ds.DeleteCommand = "DELETE FROM rammekategori WHERE (Kategorinavn = @Kategorinavn)"; Parameter Kategorinavn = new Parameter("Kategorinavn", TypeCode.String); Parameter Kategoribeskrivelse = new Parameter("Kategoribeskrivelse", TypeCode.String); ds.UpdateParameters.Add(Kategorinavn); ds.UpdateParameters.Add(Kategoribeskrivelse); ds.DeleteParameters.Add(Kategorinavn);
Page.Controls.Add(ds);
SqlDataSource m_SqlDataSource = Page.FindControl("RammeKategoriDS") as SqlDataSource;
if (m_SqlDataSource != null) { this.gvRammeKategorier.DataSourceID = m_SqlDataSource.ID; }
As mentioned - no affect at all!
Thanks in advance - MartinHN
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May 13, 2008
Hi all,I have a gridview that bound to a SqlDataSource called SqlDataSourceGridView. I have enabled Edit in my GridView, but I do all the updating in code behind with stored procedure (using onRowUpdating). Now each time when I click "Update", the update went through and all the data got updated, but I received this error: Updating is not supported by data source 'SqlDataSourceGridView' unless UpdateCommand is specified.
Description: An
unhandled exception occurred during the execution of the current web
request. Please review the stack trace for more information about the
error and where it originated in the code.
Exception Details: System.NotSupportedException:
Updating is not supported by data source 'SqlDataSourceGridView' unless
UpdateCommand is specified. What do I need to do to fix this problem?Thanks a lot.
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Sep 30, 2007
hi
it looks like my thread has been deleted but I keep on asking.
When trying to connect to a table i a SQL2005 database in a vb.Net webapplication I get the following error message from the wizard:
"The wizard detected the following errors when configuring the data adapter "SqlDataAdapter1".
"Check" Generated SELECT Statement
"Check" Generated Mappings
"Warning" Generated INSERT Statement
There were errors configuring the data adapter
"Warning" Generated UPDATE Statement
There were errors configuring the data adapter
"Warning" Generated DELETE Statement
There were errors configuring the data adapter"
The same connection works fine in a vb6 application. I have seen other threads concerning this in this forum but I can't find any answers. Any ideas anyone?
ciao chris
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Feb 1, 2007
Hey,
I changed the database name in the initial cataloge in the web.config conncetion string so that it now connects to other databas that contains same tables as the old one,but now i am getting that error at the update stmt !
thank u in advance
Hiba
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Aug 16, 2006
Hi guys. Does anybody have any clue about how to create a class which inherits from SqlDataAdapter? I tried but looks like SqlDataAdapter is not inheritable. I would like to extend it with some custom method such as a method which fills a Dataset (used with a DataGrid) with the only few records to display per page (say 20) against the thousand records it might instead contain otherwise.Any workarounds? Many thanks in advance for your help.
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Mar 26, 2007
Hi I am writing an app in flash which needs to hook up to MS SQL via asp.I need the code below to pass the var (ptodaysDate) to the sql statement. I can hard code it in and it works great but I really need to pass the var from flash.Pulling my hair out here, not much left to go.Any help greatly appreciated.---------------------------------------------- [WebMethod] public Schedule[] getSchedule(int ptodaysDate) { SqlDataAdapter adpt = new SqlDataAdapter("SELECT scheduleID, roomName, eventType,unitName,groupName,staffName,staffName2,theDate,theEnd FROM tb_schedule Where theDate >= @rtodaysDate", connString); SqlParameter rtodaysDate = new SqlParameter("@rtodaysDate", ptodaysDate); DataSet ds = new DataSet(); ArrayList al = new ArrayList(); adpt.Fill(ds); foreach (DataRow row in ds.Tables[0].Rows) { Schedule obj = new Schedule(); obj.scheduleID = (int)row["scheduleID"]; obj.roomName = (string)row["roomName"]; obj.eventType = (string)row["eventType"]; obj.unitName = (string)row["unitName"]; obj.groupName = (string)row["groupName"]; obj.staffName = (string)row["staffName"]; obj.staffName2 = (string)row["staffName2"]; obj.theDate = (string)row["theDate"]; obj.theEnd = (string)row["theEnd"]; al.Add(obj); } Schedule[] outArray = (Schedule[])al.ToArray(typeof(Schedule)); return outArray; } public class Schedule { public int scheduleID; public string roomName; public string eventType; public string unitName; public string groupName; public string staffName; public string staffName2; public string theDate; public string theEnd; }
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Apr 25, 2007
It's a pretty basic question but I haven't been able to find any examples out there. I dimmed a dataadapter and would like to reuse later in my code (line 3 in the code below). What is the correct syntax to do this? Dim da As New SqlDataAdapter("SELECT * FROM myTable", conn)da.Fill(myDataTable)da.______ ("SELECT * FROM myTable2", conn)da.Fill(myDataTable2)
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Aug 15, 2007
I'm working on a project to dynamically create PDFs with content from an SQL server. My current approach is to get the data I need into a DataSet using SqlDataAdapter, write the DataSet to a stream as XML, transform the XML into FO and then output a pdf using FOP. For some reason I get the following exception "System.NullReferenceException - Object reference not set to an instance of an object" when I try to set the SelectCommand property of my data adapter. Code for the project follows:Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim con As SqlConnection Dim cmd As SqlCommand Dim IDlist As String Dim keyidary As Array Dim query As String Dim tempxml As Stream query = "*****query is valid and very long, so it's not included here*****" IDlist = Request.Form("chosenIDs") keyidary = Split(IDlist, ",") Dim makequery As New StringBuilder(query) For Each ID As String In keyidary makequery.Append(" OR (KeyID = '" & ID & "')") Next query = makequery.ToString() 'Response.Write(query) When uncommented this prints the query just fine 'Response.End() Try con = New SqlConnection con.ConnectionString = "****Connection String is valid****" cmd = New SqlCommand cmd.CommandText = query cmd.CommandType = CommandType.Text cmd.Connection = con Dim adpt As SqlDataAdapter adpt.SelectCommand = cmd 'Response.Write(query) When these are above or between the previous 2 statements, query is printed, 'Response.End() otherwise I get the error described above. Dim profiles As New DataSet adpt.Fill(profiles) profiles.WriteXml(tempxml) Dim step1 As XslTransform = New XslTransform Dim step2 As XslTransform = New XslTransform step1.Load(Server.MapPath("TransAttmpt1.xslt")) step2.Load(Server.MapPath("formatXML.xsl")) Dim xml, pdf As String xml = "profiles.xml" pdf = "Profiles.pdf" Dim temp2xml As New XPathDocument(tempxml) Response.Write(query) Response.End() Dim midstream As Stream Dim finalxml As StreamWriter = New StreamWriter(xml) step1.Transform(temp2xml, Nothing, midstream, Nothing) Dim xpathdoc2 As XPathDocument = New XPathDocument(midstream) step2.Transform(xpathdoc2, Nothing, finalxml, Nothing) GeneratePDF(xml, pdf) 'There's a lot more but it doesn't seem relevant now.... I'm somewhat at a loss on how to proceed and any help is very greatly appreciated.Thanks!
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Oct 1, 2007
Hi all,
I have datatable having around 50 rows and 3 columns ID, Name and ExpVal, which is an expression columns,where the values can be any SQL functions Like REPLICATE(), SOUNDEX ( 'value' ) Or REVERSE ( 'value' ).....
i want to insert each row in that datatable like
INSERT INTO TAB1 ( ID, Name, ExpVal) VALUES (1, 'some name', SOUNDEX ( 'some name' ) )
so that the ExpVal will have value of the function ie inserted row look like
ID Name ExpVal1 some name S500 <--- Result of SOUNDEX ( 'some name' )
I'm using sqldatadapter to insert these values to the database
string sql = "INSERT INTO TAB1 (ID, Name, ExpVal)VALUES (@ID, @Name, @ExpVal) ";SqlDataAdapter sqlAdptr = new SqlDataAdapter();SqlCommand sqlCmd = new SqlCommand(sql, con);sqlCmd.parameters.Add("@ID", SqlDbType.Int, 0, "ID");sqlCmd.parameters.Add("@Name", SqlDbType.NVarChar, 200, "Name");sqlCmd.parameters.Add("@ExpVal", SqlDbType.VarChar, 100, "ExpVal");sqlAdptr.InsertCommand = sqlCmd;sqlAdptr.Update(dataTable);
This works fine, but the problem is, now the TAB1 contains
ID Name ExpVal1 some name 'SOUNDEX ( 'some name' )' instead of S500
Thatis the sql funtion is passed by SqlDataAdapter to database as a string and it is not executing while row is inserted to the table.Please provide what changes i have to make if i want SOUNDEX ( 'some name' ) to executed while data insertion take place
Thanks in advance
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Jun 3, 2008
I'm getting a strange error with my dataadapter. Here's my code: using (SqlConnection conn = new SqlConnection(
ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
{
SqlDataAdapter da = new SqlDataAdapter("sprocCUSTOM", conn);
da.SelectCommand.Parameters.AddWithValue("@eventID", EventID);
conn.Open(); //open connection
DataSet ds = new DataSet();
da.Fill(ds);
gvAttendees.DataSource = ds;
gvAttendees.DataBind();
}This is the error I'm getting: Incorrect syntax near 'sprocCUSTOM'.But the error is highlighted at the line that reads "da.Fill(ds);"There's nothing wrong with the stored procedure either. It exists and works fine.
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Feb 6, 2004
I am using SqlDataAdapter.Update(DataSet) to insert records into multiple tables in one call, but for some reason only first table was inserted.
Dim _cnn As New SqlConnection(ConfigurationSettings.AppSettings("ConnectionString"))
Dim _sql As String = "Select a,b FROM Table1;Select d, c From Table2;"
Dim _da As New SqlDataAdapter(_sql, _cnn)
Dim _sqlCmdBdr As New SqlCommandBuilder(_da)
Dim _ds As New DataSet
_da.Fill(_ds)
Dim _newrow1 As DataRow = _ds.Tables(0).NewRow
_newrow1("a") = "NewA"
_newrow1("b") = "NewB"
_ds.Tables(0).Rows.Add(_newrow1)
Dim _newrow2 As DataRow = _ds.Tables(1).NewRow
_newrow2("d") = "NewD"
_newrow2("c") = "NewC"
_ds.Tables(1).Rows.Add(_newrow2)
_da.Update(_ds)
new record inserted only into Table1, no new rows in Table2
Please advise!
Thanks
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Jul 6, 2007
Hi,
I am porting an ASP.NET/C# application from Microsoft Access to SQL Server 2005. In my code I have a method that uses the DataAdapter class to open a table, read some values out of it which are stored, open a second table, read some additional data from it storing the data in the same structure as used before, then updating the first table with the combined data.
When I execute the dataAdapter.Update() method I get the following error:
"Dynamic SQL generation for the Update Command is not supported against a Select Command that does not return any key column information."
I am uncertain what this error is about. This code worked fine against Microsoft Access so it must be something different in how SQL Server works.
Can anyone tell me what this error is complaining about?
Many thanks!
Bob
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Mar 16, 2007
With MUCH help from this site and its users, I now know how to link a SqlCommand to a stored procedure:
What I don't know how to do, if it is possible, is to use a stored procedure with a SQLDataAdapter...
Here is the code as I am using, anyone have an idea on how to do this the right way?
' Define data objects
Dim conn As SqlConnection
Dim dataSet As New DataSet
Dim adapter As SqlDataAdapter
If ViewState("FooterDataSet") Is Nothing Then
' Read the connection string from Web.config
Dim connectionString As String = _
ConfigurationManager.ConnectionStrings( _
"Greensheet").ConnectionString
' Initialize connection
conn = New SqlConnection(connectionString)
' Create adapter
adapter = New SqlDataAdapter("SELECT * " & _
"FROM Table " & _
"WHERE (ID= " & intID & ")", conn)
' Fill the DataSet
adapter.Fill(dataSet, "Footer")
' Store the DataSet in view state
ViewState("FooterDataSet") = dataSet
Else
dataSet = ViewState("FooterDataSet")
End If
' Prepare the sort expression using the gridSortDirection and
' gridSortExpression properties
Dim sortExpression As String
If gridSortDirection = SortDirection.Ascending Then
sortExpression = gridSortExpression & " ASC"
Else
sortExpression = gridSortExpression & " DESC"
End If
' Sort the data
dataSet.Tables("Footer").DefaultView.Sort = sortExpression
' Bind the grid to the DataSet
footerGrid.DataSource = _
dataSet.Tables("Footer").DefaultView
footerGrid.DataBind()
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Jul 13, 2007
Since my select command involves multiple tables, I manually write the insert command, proplating the SqlParameters as follows:
string insCmdText = "INSERT INTO itcac_alan.COURSE " + " ([COURSE_ID], [COURSE_NAME], [COURSE_NO], [BEGIN_DATE], [END_DATE], [CREATER]) " + " VALUES(@COURSE_ID, @COURSE_NAME, @COURSE_NO, @BEGIN_DATE, @END_DATE, @CREATER)";
SqlCommand insCmd = new SqlCommand(insCmdText, conn); insCmd.Parameters.Add("@COURSE_ID", SqlDbType.VarChar); insCmd.Parameters.Add("@COURSE_NAME", SqlDbType.VarChar); insCmd.Parameters.Add("@COURSE_NO", SqlDbType.VarChar); insCmd.Parameters.Add("@BEGIN_DATE", SqlDbType.DateTime); insCmd.Parameters.Add("@END_DATE", SqlDbType.DateTime); insCmd.Parameters.Add("@CREATER", SqlDbType.VarChar);
da.InsertCommand = insCmd; // da is a data adapter
However, as I use the preceding adapter to update the underlying database which in fact is based on a disconnected DataRow, an exception is thrown:
The parameterized query '(@COURSE_ID varchar(8000),@COURSE_NAME varchar(8000),@COURSE_NO ' expects the parameter '@COURSE_ID', which was not supplied.
The code I update the database is as follows:
DataRow newRow = sourceTable.NewRow(); //sourceTable is a DataTable whose data rows are populated with da (SqlDataAdpater) in the preceding code
// Populating the newRow
Hashtable newValues = new Hashtable();
.....................
foreach (DictionaryEntry entry in newValues) { // entry.Key is identical to a column name in the newRow newRow[(string)entry.Key] = (entry.Value == null ? DBNull.Value : entry.Value); }
sourceTable.Rows.Add(newRow);
adapter.SelectCommand.Connection.Open();
adapter.Update(sourceTable); // Exception is thrown here
adapter.SelectCommand.Connection.Close();
Please give me some directions to debug. It seems that the values of Columns withn DataRow cannot be fetched into the corresponding adapter.InsertCommand.Parameters by the adpater. (As I use SqlCommandBuilder to automatically generate insert command, the code above wroks rightly.)
Thanks a million.
Ricky.
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Feb 7, 2008
MyCommand.Parameters.Add(new SqlParameter("@ConsultantName",SqlDbType.VarChar));
MyCommand.Parameters.Add(new SqlParameter("@Calls",SqlDbType.VarChar));
MyCommand.Parameters.Add(new SqlParameter("@PPC",SqlDbType.VarChar));
MyCommand.Parameters.Add(new SqlParameter("@Mth",SqlDbType.VarChar));
MyCommand.Parameters.Add(new SqlParameter("@DaysInMonth",SqlDbType.VarChar));
MyCommand.Parameters.Add(new SqlParameter("@Coach",SqlDbType.VarChar));
MyCommand.Parameters.Add(new SqlParameter("@Center",SqlDbType.VarChar));
MyCommand.Parameters.Add(new SqlParameter("@ProductValue",SqlDbType.VarChar));
MyCommand.Parameters.Add(new SqlParameter("@ObjectiveValue",SqlDbType.VarChar));
MyCommand.CommandType = CommandType.StoredProcedure;
MyCommand.CommandTimeout = 360;
try
{
SqlDataAdapter saveCenterCoaches = new SqlDataAdapter(MyCommand);
saveCenterCoaches.InsertCommand = MyCommand;
DataSet updateSet = finalSet.GetChanges(DataRowState.Added);
saveCenterCoaches.Update(updateSet.Tables[0]);
}
catch(Exception ex)
{
throw ex;
}
Iam getting "Procedure expects parameter @ConsultantName, which was not supplied."
I have consultantname and other parameters built in my datatable.
Is it the correct way of doing?
Can someone help.It is urgent.
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Feb 20, 2008
Hi, I was looking at how to update a database using SqlDataAdapter and I stumbled upon this code snippet from (http://www.java2s.com/Code/CSharp/Database-ADO.net/UpdatedatabaseusingtheSqlDataAdapter.htm):using System;
using System.Data;
using System.Data.SqlClient;
class Class1{
static void Main(string[] args){
SqlConnection thisConnection = new SqlConnection("server=(local)\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI");
SqlDataAdapter thisAdapter = new SqlDataAdapter("SELECT ID, FirstName FROM Employee", thisConnection);
SqlCommandBuilder thisBuilder = new SqlCommandBuilder(thisAdapter);
DataSet thisDataSet = new DataSet();
thisAdapter.Fill(thisDataSet, "Employee");
Console.WriteLine("name before change: {0}", thisDataSet.Tables["Employee"].Rows[9]["FirstName"]);
thisDataSet.Tables["Employee"].Rows[1]["FirstName"] = "Inc";
thisAdapter.Update(thisDataSet, "Employee");
Console.WriteLine("name after change: {0}", thisDataSet.Tables["Employee"].Rows[9]["FirstName"]);
}
}I was just wondering, without iteration, how did the line "thisDataSet.Tables["Employee"].Rows[1]["FirstName"] = "Inc";" managed to know which row it is to update? I tried it on my own application and it worked fine.Any help to assist me in understanding this would be appreciated. Thanks
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Apr 28, 2006
Hello Dears;
I have an SqlDataAdapter which contains may queries. One query contians 3 query parameters as follows:
SELECT SUM(Amount) AS TotalFROM BoxesWHERE EntryDate BETWEEN @date1 AND @date2 AND Area=@Area
the query cannot be ran unless the queries parameters were provided. I have to access this query in code to add the parameters from controls. Is it possible to access it or use sqlDataSource instead?
Thanks alot
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Sep 21, 2006
I'm trying to pass a querystring to an SqlDataAdapter object. To check if the query is a valid SELECT statement, I simply use a try-catch. But dispite the try-catch it still accepts valid INSERT statements. However, in the parameterlist of the SqlDataAdapter the required parameter is a Transact SQL SELECT statement or a stored procedure... Am I doing something wrong? Here is my code:try
{
my_conn = conn_open();
da = new SqlDataAdapter(query, my_conn);
da.Fill(result.resultDataset);
my_conn.Dispose();
}
catch (Exception e)
{
result.errMsg = "Database Error: " + e.Message;
result.success = false;
} Kehil
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Aug 14, 2007
How to configure sqldatadapter with query like
"select name ,id from tlb1 where id in (select id from tlb2 where dept=@dept)"
Is the nested subquery is not allowed while configuring sqldaadapter?
Swati
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Sep 4, 2007
Hi GuysI am facing a problem while updating a DataTable to database using sqldataadapter.In my application I am fetching a dataTable from Database and filling values into textboxes on the UI.User has given facility to change or add new texboxes (new row) on the fly .(Textboxes on the UI are like in a row(tr) having two textboxes in each row.)I am again then converting a new (empty) datatable from scrap and filling its rows with the value of textboxes on submit button event.The datatable which I have created has the same schema as the database table.Now what I want here is that changed value should be reflected to the already existed rows in database and only new rows should be inserted.I am using a SQLDataAdapter having two sqlcommands , one for update with update procedure name and parameter mapping and another for insert with parameter mapping.But SqlDataAdapter is inserting fresh new rows all the time in the database table not updating the older one.Please help me in the matterThanks & RegardsVishal Sharma
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