SqlDataSource Lag / Databinding Question
Nov 9, 2006
Hey all,
I had a few questions about how to properly use the sqldatasource -
I have a form with a single dropdownlist, databound to an sqldatasource that just has a select statement. Over the course of time, the client has requested additional dropdownlists, all of which point to different sqldatasources. After I reached 4 or 5, I noticed the page started to load incredibly slower. I played around with the caching features, and after a good while of reading up on it, finally was able to cache the page /data and notice an increase.
Later, another 4 dropdownlists were added, 3 of which all take the same data. I assumed if I had 3 dropdownlists, which need the same data, I should use the same sqldatasource. What do you think? My page is behaving unaccepteably slow again.
As a test, I created a new page, and bound it in the same fashion. I slowly added more dropdownlists /sqldatasources, and found it lags a bit on the initial load time (maybe 10-12 seconds of processing time before the page loads). The tables it is pulling data from do not have a primary key, and i'm doing select statements that return roughly 100-200 rows of data (per dropdownlist on average). I'm only selecting 1 column name (no select * here)
I'm just curious if anyone has experienced similar issues, and also if there is anything I should do as a best practice while working with the sqldatasource. I've used hundreds of these on forms, and never experienced a problem. I only started noticing this on pages that have multiple. Also, when using multiple dropdowns that need the same data (I know that sounds goofy - why have 3 dropdownlists with the same data) should I use 3 individual datasources?
Thanks for your help in advance,
Mike
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Sep 17, 2007
hello...
Probably a simple question but I have to ask...using visual basic 2005 express...
I have two tables one with last name and basic info, one with detailed info. Both set up with Primary key and Foreign key.
I have a combo box that displays the last names and then by clicking
the last name, text boxes fill with the "other" data from table1,
however,
there are some text boxes that I would like to fill with data from the table2.
Any pointers??
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Mar 25, 2008
I’m trying to teach myself C# and trying to create a simple (so I thought) little database using Infragistic's UltraWebGrid (Althought my question is more ASPish). Every sample I run across seems to only show the very basics and doesn’t seem to go into anything more than just a simple table and displaying it in a Gird. Which is pretty easy and I can do that all day and night.
Anyway, my database has three tables in a one-to-many relationship. The database is of Trucking companies and which states they service and they can service multiple states.
The database is like this:
Compnies:
TruckerID, Company Name, Address, etc.
ServiceStates:
TruckerID, StateID
StateNames:
StateID, StateName, StateAbbreviation
I would like to show the States that they service in a Hierarchical Grid.
I can write the SQL to do what I want to, basically do an inner join on ServicesStates and StateNames based on the TruckerID. I can sit all day and night getting what I would like to display in the WebGrid in the query builder on the SQL server. I figured it wouldn’t be much of a stretch to be able to do that in UltraWebGrid (Or whatever floats your boat).
Anyway, on to my question. :)
While browsing the samples on everything, I've figured out, that I will need to use the SqlDataAdapter Class, to access the database. Then I'll need to use the SQLConnection Class, and populate a DataSet.
Now while in VS I can go to WebSite -> Add New Item -> DataSet slap my tables on there and away I go (at least it seems that way). If I do that, what exactly is the difference between doing that and using the dataset class? When I do that, is that not creating the dataset? I see all the classes it created (I named mine Trucking). I see all the SQL statements in the classes.
I imagine I must be missing something *REALLY* simple or this just went way over my head at by at least 40,000 ft.
Thanks,
marly
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Jun 19, 2008
Hai,i'm new asp.net and vb.net
i have few textboxes and few dropdownlists.i want to insert data in (.mdf )database with these textboxes and dropdown lists
please anybody can tell me a sample and simple example.
Thanking you
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Mar 11, 2007
Hi, I have a page created within VS 2005 which uses a detailsView with a SQLDataSource which has insert, edit and delete items allowed with it. The problem is that if I delete a record I dont want to refresh the page as I want to set a label value to say item deleted. The problem then though is to select the item to delete I have a drop down which populates the details view on index change, but if I delete the item I cannot do a databind when its complete because it just binds to the existing dataset and does not do a fresh call on the database.Is there a command I can run to refresh the dataset on click of the delete button?Thanks
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Mar 4, 2008
Hi,i have a question, i have a VS2005 and a SQL server 2000 enterprise in my office that i used for web developement,iam new to this, i made a data driven site using some automated controls available in the toolbox, but i need to made some manual process, like i need to make a LABEL show the SUM of specific number fields from my data base, they say i have to make a OLEDB connection using VB, but i don't know how,can you tell me how?Thanks
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Apr 18, 2007
We are tired of null values coming out of from the database and we are directly coding behind UI decleratively.
We set up a null value coding standarts but I wonder what are the disadvantages to our approach
DataType The default value we send ALLOW NULL
int,bit,decimal 0 NOnvarchar(string) " "(one space) NOdatetime YESbinary YES
*in datetime we do not allow nulls in places such as _CREATEDATE and _LASTMODIFYDATE fields.
What are other approaches for null besides writing your own layer to handle it ?
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May 28, 2006
Hello,
I would like to databind a textbox (the Text property) and I have try the following syntax:
Text='<%# Bind("au_fname") %>'
but there's no Datasource property for this control. I have defined a SqlDatasource object but can I link it to my Textbox. I have looked at the properties of the control: there's a Expressions section in which I can configure a connection string but thar's all.
When I run the page I have no error but the textbox field is empty.
Thanks for your help.
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Sep 18, 2007
Does anybody know a good way to get a (near) live view of a sqlce database that doesn't involve ResultSets? I tried to use a resultset with the Sensitive option set, but it doesn't like the joins that I have to do in order to have the data make sense to the user.
Thanks
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Apr 27, 2006
I have a windows form containing some text boxes and radio buttons bount to an SQL Server database, with code like the following:
this.tbBorrowerLastName.DataBindings.Add (new Binding("Text", dsData.Tables["Results"],"BorrowerLastName"();
this.rbMale.DataBindings.Add(new Binding("Checked", dsData.Tables["Results"],"Male"))
If I add a new row and try to move there using the code below, nothing happens (neither movement to a new position nor error message), unless I remove the radio button bindings. (The same thing occurs if I attempt to move to any record that has a null value in the database field for a radio button).
myLastRow = dsData.Tables["Results"].NewRow();
dsData.Tables["Results"].Rows.Add(myLastRow);
I attempt to move by changing the value of the position property of the BindingContext object.
How can I retain the radio button bindings and still be able to add and move to a new row?
Any help would be appreciated.
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Feb 19, 2008
Hello Everyone!
I am getting started with DataBinding with SSE 2005 and VC#
The problem i am facing is that i need to bind a group of radio buttons eg: Duration Type: Days, Weeks, Months, Years.
The field type in the database is tinyint and the values are 1,2,3,4 for Days, Weeks, Months and Years respectively.
How can i bind a group of radio buttons to the tinyint data in table?
Any help/hint is appericiated.
Thankyou for taking the time to read this.
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Jan 22, 2007
Hello,
I have a page with a detailsview where I can add articles (Generated by visual studio). Now the table contains a field (Autor) wich must contain the username of the Autor from the article. But when I run my page now I have to give it in manually ( in a textbox). I've searching for a way to bind the Profile Username with the insert Sql Query, @Autor value.
I tought maybe I should insert the value of the Profile username in the textbox and put the textbox visibel on false.
But When i saw the component code I saw that Text= is already bound, so it's not possible to insert a value<asp:TextBox ID="auteurTextBox" Visible="true" runat="server" Text='<%# Bind("auteur") %>'> Here is whole the page code (line 23 is the textbox). 1 <asp:FormView ID="FormView1" runat="server" DataKeyNames="id" DataSourceID="SqlDataSource1" AllowPaging="True" CellPadding="4" ForeColor="#333333" style="left: 30%; position: relative">
2 <EditItemTemplate>
3 <asp:Label ID="idLabel1" Visible="false" runat="server" Text='<%# Eval("id") %>'></asp:Label>
4 <asp:TextBox ID="auteurTextBox" Visible="false" runat="server" Text='<%# Bind("auteur") %>'>
5 </asp:TextBox>
6 soort:
7 <asp:TextBox ID="soortTextBox" runat="server" Text='<%# Bind("soort") %>'>
8 </asp:TextBox><br />
9 titel:
10 <asp:TextBox ID="titelTextBox" runat="server" Text='<%# Bind("titel") %>'>
11 </asp:TextBox><br />
12 text:
13 <asp:TextBox ID="textTextBox" Height="200px" TextMode="MultiLine" Rows="20" Width="260px" runat="server" Text='<%# Bind("text") %>'>
14 </asp:TextBox><br />
15 <asp:LinkButton ID="UpdateButton" runat="server" CausesValidation="True" CommandName="Update"
16 Text="Update">
17 </asp:LinkButton>
18 <asp:LinkButton ID="UpdateCancelButton" runat="server" CausesValidation="False" CommandName="Cancel"
19 Text="Cancel">
20 </asp:LinkButton>
21 </EditItemTemplate>
22 <InsertItemTemplate>
23 <asp:TextBox ID="auteurTextBox" Visible="true" runat="server" Text='<%# Bind("auteur") %>'>
24 </asp:TextBox><br />
25 Soort:
26 <asp:TextBox ID="soortTextBox" runat="server" Text='<%# Bind("soort") %>'>
27 </asp:TextBox><br />
28 titel:
29 <asp:TextBox ID="titelTextBox" runat="server" Text='<%# Bind("titel") %>'>
30 </asp:TextBox><br />
31 text:
32 <asp:TextBox ID="textTextBox" runat="server" Text='<%# Bind("text") %>'>
33 </asp:TextBox><br />
34 <asp:LinkButton ID="InsertButton" runat="server" CausesValidation="True" CommandName="Insert"
35 Text="Insert">
36 </asp:LinkButton>
37 <asp:LinkButton ID="InsertCancelButton" runat="server" CausesValidation="False" CommandName="Cancel"
38 Text="Cancel">
39 </asp:LinkButton>
40 </InsertItemTemplate>
41 <ItemTemplate>
42 <asp:Label ID="idLabel" Visible="false" runat="server" Text='<%# Eval("id") %>'></asp:Label><br />
43 <asp:Label ID="auteurLabel" Visible="false" runat="server" Text='<%# Bind("auteur") %>'></asp:Label><br />
44 soort:
45 <asp:Label ID="soortLabel" runat="server" Text='<%# Bind("soort") %>'></asp:Label><br />
46 titel:
47 <asp:Label ID="titelLabel" runat="server" Text='<%# Bind("titel") %>'></asp:Label><br />
48 text:
49 <asp:Label ID="textLabel" runat="server" Text='<%# Bind("text") %>'></asp:Label><br />
50 <asp:LinkButton ID="EditButton" runat="server" CausesValidation="False" CommandName="Edit"
51 Text="Edit">
52 </asp:LinkButton>
53 <asp:LinkButton ID="DeleteButton" runat="server" CausesValidation="False" CommandName="Delete"
54 Text="Delete">
55 </asp:LinkButton>
56 <asp:LinkButton ID="NewButton" runat="server" CausesValidation="False" CommandName="New"
57 Text="New">
58 </asp:LinkButton>
59 </ItemTemplate>
60 <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
61 <EditRowStyle BackColor="#2461BF" />
62 <RowStyle BackColor="#EFF3FB" />
63 <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
64 <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
65 </asp:FormView>
66 <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConflictDetection="CompareAllValues"
67 ConnectionString="<%$ ConnectionStrings<img src="images/smilies/biggrinn.gif" border="0" alt="">atabankConnectie %>" DeleteCommand="DELETE FROM [artikel2] WHERE [id] = @original_id AND [auteur] = @original_auteur AND [soort] = @original_soort AND [titel] = @original_titel AND [text] = @original_text"
68 InsertCommand="INSERT INTO [artikel2] ([auteur], [soort], [titel], [text]) VALUES (@auteur, @soort, @titel, @text)"
69 OldValuesParameterFormatString="original_{0}" SelectCommand="SELECT * FROM [artikel2] WHERE [auteur] = @auteur"
70 UpdateCommand="UPDATE [artikel2] SET [auteur] = @auteur, [soort] = @soort, [titel] = @titel, [text] = @text WHERE [id] = @original_id AND [auteur] = @original_auteur AND [soort] = @original_soort AND [titel] = @original_titel AND [text] = @original_text">
71 <DeleteParameters>
72 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="original_id" Type="Int32">
73 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="original_auteur" Type="String">
74 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="original_soort" Type="String">
75 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="original_titel" Type="String">
76 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="original_text" Type="String">
77 </DeleteParameters>
78 <UpdateParameters>
79 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="auteur" Type="String">
80 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="soort" Type="String">
81 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="titel" Type="String">
82 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="text" Type="String">
83 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="original_id" Type="Int32">
84 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="original_auteur" Type="String">
85 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="original_soort" Type="String">
86 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="original_titel" Type="String">
87 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="original_text" Type="String">
88 </UpdateParameters>
89 <InsertParameters>
90 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="auteur" Type="String">
91 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="soort" Type="String">
92 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="titel" Type="String">
93 <asp src="images/smilies/tongue.gif" border="0" alt="">arameter Name="text" Type="String">
94 </InsertParameters>
95 </asp:SqlDataSource>
96 </LoggedInTemplate>
97 </asp:LoginView>
98 </asp:Content>
99
Can somebody help me?
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Feb 16, 2007
Here's a new one I came across that stumped me for a bit.
DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'xxxx'.
It appears that one of my dropdown menus was referencing the old SqlDataSource1for its data source id.
I had already changed the name of the of the id to something else though.
To fix it, I just updated the reference to the new name.
Thought I'd share, just in case
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Aug 11, 2006
I m trying to UPDATE database using FormView and SqlDataSource and here is my code:
<asp:SqlDataSource ID="sqlDS1" runat="server" ConnectionString="<%$ ConnectionStrings:myDB %>"UpdateCommand="UPDATE [Consultants] SET [firstName]=@FIRSTNAME,[lastName]=@LASTNAME,[skillCategoryID]=@SKILLCATID,[resourceManagerID]=@RMID,[AMgroupID]=@AMGROUPID,[SkillSet]=@SKILLSET,[statusID]=@STATUSID,[location]=@LOCATION,[comments]=@COMMENTS,[profile]=@PROFILE,[isAvailable]=@ISAVAILABLE,[dateModified]=getdate(),[focusID]=1 WHERE ([id]=@ID)">
<UpdateParameters>
<asp:FormParameter FormField="txtFName" Name="FIRSTNAME" />
<asp:FormParameter FormField="txtLName" Name="LASTNAME" />
<asp:FormParameter FormField="ddlSkillCat" Name="SKILLCATID" />
<asp:FormParameter FormField="ddlRM" Name="RMID" />
<asp:FormParameter FormField="ddlAMGroup" Name="AMGROUPID" />
<asp:FormParameter FormField="txtSkillset" Name="SKILLSET" />
<asp:FormParameter FormField="ddlStatus" Name="STATUSID" Type="Int16" />
<asp:FormParameter FormField="txtLocation" Name="LOCATION" />
<asp:FormParameter FormField="txtComments" Name="COMMENTS"/>
<asp:FormParameter FormField="txtProfile" Name="PROFILE" />
<asp:FormParameter FormField="cbAvailable" Name="ISAVAILABLE" />
<asp:QueryStringParameter Type="Int32"
Name="ID"
QueryStringField="id" />
</UpdateParameters>
</asp:SqlDataSource>
//*******************************************************************
<asp:FormView DefaultMode="Edit" ID="FormView1" runat="server" DataSourceID="sqlDS1" DataKeyNames="id">
<EditItemTemplate>
<tr>
<td class="blacktextbold">
Resource Manager:
</td>
<td class="blacktext">
<asp:DropDownList ID="ddlRM" CssClass="blacktext" runat="server" DataSource="<%#GetRM()%>" DataTextField="RMName" DataValueField="userID" SelectedValue="<%#Bind('RMID')%>" AppendDataBoundItems="true">
<asp:ListItem Value="-1">--Select RM--</asp:ListItem>
</asp:DropDownList>
<asp:CustomValidator ID="cvRM" runat="server" ValidationGroup="gpInsert" ControlToValidate="ddlRM" ClientValidationFunction="validateDropdown" OnServerValidate="servervalidateDropdown" Display="Dynamic" ErrorMessage="Required Field" CssClass="redtextsmallbold" />
</td>
</tr>
//********************************************************
here is my GetRM() function:
protected DataSet GetRM()
{
string strConnection = ConfigurationManager.ConnectionStrings["myDB"].ToString();
SqlConnection objConnection = new SqlConnection(strConnection);
String sqlSkillCats = "SELECT Roles.roleID, Roles.roleName, UsersInRoles.userID, UsersInRoles.roleID AS Expr1, Users.firstName + ' ' + Users.lastName AS RMName, Users.id AS Expr2" +
" FROM Users INNER JOIN" +
" UsersInRoles ON Users.id = UsersInRoles.userID CROSS JOIN" +
" Roles" +
" WHERE (Roles.roleName = 'accountmanager') AND (UsersInRoles.roleID = Roles.roleID) ORDER BY Users.firstName";
SqlDataAdapter objAdapter = new SqlDataAdapter(sqlSkillCats, objConnection);
objConnection.Open();
//ddlDataSet = new DataSet();
try
{
objAdapter.Fill(dsConsultantRM, "ConsultantRM");
}
catch (Exception ex)
{
Response.Write(ex.Message);
}
objConnection.Close();
return dsConsultantRM;
}//******************************************************************
i get this error when i load the page:DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'RMID'.
basically i m trying to UPDATE database using the value selected in the DropDownList, can anyone tell me whats wrong here...PLZ HELP!
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Sep 16, 2006
HAI guys,i am suneel.i have a problem..please help me..i am binding my datalist.i have set my dtakey field to the primary key of teh database.i am not displaying the primary key(file_id).but i am displaying the other fields in that table.i have set databinder.Eval(container,dataitem."file_name").i have put one delete button in the item template...if i want to build now...i am getting an error.....DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'file_ID'.wat i have to do..please get me the reply..
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Mar 22, 2007
Hi,Seems like a lot of people are having a similiar problem that I am having right now, but I am not able to find the solution to it. On the Page_load event, the gridview does display the data from database. When I click a button to insert the same data but different Waste_Profile_Num value, it gives me the databinding error. Component_Profile_ID is declared as an Identity and it is the primary key to the table. Anyway help???Ok, the following are code that I have: 1 <asp:SqlDataSource ID="sqlDSMaterialComposition" runat="server" ConnectionString="<%$ ConnectionStrings:HAZConnectionString %>"
2 SelectCommand="SELECT dbo.Component_Profile.Component_Profile_ID AS Component_Profile_ID, dbo.Component.Component, dbo.Component_Profile.Concentration, dbo.Component_Profile.Range, dbo.Component_Profile.Waste_Profile_Num, dbo.Component.Component_ID FROM dbo.Component INNER JOIN dbo.Component_Profile ON dbo.Component.Component_ID = dbo.Component_Profile.Component_ID WHERE (dbo.Component_Profile.Waste_Profile_Num = @Waste_Profile_Num)">
3 <SelectParameters>
4 <asp:SessionParameter Name="Waste_Profile_Num" SessionField="Waste_Profile_Num" Type="Int32" />
5 </SelectParameters>
6 </asp:SqlDataSource>
7
8
9 <asp:GridView ID="GridViewMaterialComposition"
10 runat="server"
11 DataKeyNames="Component_Profile_ID,Component_ID"
12 AutoGenerateColumns="False" ShowFooter="true">
13 <Columns>
14 <asp:BoundField DataField="Component" HeaderText="Component" SortExpression="Component" FooterText="Total"/>
15 <asp:TemplateField HeaderText="Concentration" FooterStyle-Font-Bold="true">
16 <ItemTemplate>
17 <%# SumConcentration(decimal.Parse(Eval("Concentration").ToString())).tostring("N2") %>
18 </ItemTemplate>
19 <FooterTemplate>
20 <%# GetConcentration().tostring("N2") %>
21 </FooterTemplate>
22 </asp:TemplateField>
23 <asp:BoundField DataField="Range" HeaderText="Range" SortExpression="Range" />
24 <asp:BoundField DataField="Component_Profile_ID" HeaderText="Component_Profile_ID" ReadOnly="True" SortExpression="Component_Profile_ID" Visible="true" />
25 <asp:BoundField DataField="Component_ID" HeaderText="Component_ID" ReadOnly="True" SortExpression="Component_ID" Visible="true"/>
26 <asp:BoundField DataField="Waste_Profile_Num" HeaderText="Waste_Profile_Num" ReadOnly="true" SortExpression="Waste_Profile_Num" Visible="true" />
27 <asp:CommandField ShowEditButton="true" />
28 <asp:TemplateField Visible="false">
29 <ItemTemplate>
30 <asp:Label ID="lblComponentProfileID" runat="Server" Text='<% # Eval("Component_Profile_ID") %>'></asp:Label>
31 <asp:Label ID="lblComponentID" runat="Server" Text='<% # Eval("Component_ID") %>'></asp:Label>
32 </ItemTemplate>
33 </asp:TemplateField>
34 </Columns>
35 </asp:GridView>The following are the code-behind: 1 sqlSelect = "SELECT Range, Concentration, Component_ID FROM Component_Profile WHERE (Component_Profile.Waste_Profile_Num = " & previousWasteProfileNum & ")"
2 sqlDSMaterialComposition.SelectCommand = sqlSelect
3 Try
4 Dim dvComposition As Data.DataView = CType(sqlDSMaterialComposition.Select(DataSourceSelectArguments.Empty), Data.DataView)
5 For Each dr As Data.DataRow In dvComposition.Table.Rows
6 insertSql = "INSERT INTO Component_Profile ([Range], [Concentration], [Component_ID], [Waste_Profile_Num]) "
7 insertSql &= "VALUES (" & dr("Range").ToString.Trim & ", " & dr("Concentration").ToString.Trim & ", " & dr("Component_ID").ToString.Trim & ", " & CInt(Session("Waste_Profile_Num").ToString()) & ")"
8 sqlDSMaterialComposition.InsertCommand = insertSql
9 sqlDSMaterialComposition.Insert()
10 Next
11 Catch ex As Exception
12
13 End Try
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Mar 13, 2008
I am actually a newbie to asp.net and i m using ASP.net 3.5 i.e, VWD 2008. i am using it for the first time as my tool to develop a website for my final year project. i am planning to develop an online job recruitment site like www.monster.com. Rigth now i am confused how will i manage my database. i've learned to use databinding concept of SQL SERVER in VWD 2008 but will it be enough to handle such huge # of Job postings and employers and as well as Resumes in pdf of word format? or do i have to create a separate databse in SQL Server and to connect it with my website? i am confused at the moment. please help me in this matter.
Regards,
Jigzy
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Jul 23, 2007
What is the C# code I use to do this?
I'm guessing it should be fairly simple, as there is only one row selected. I just need to pull out a specific field from that row and then insert that value into a different SqlDataSource.
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Mar 8, 2007
i am using visual web developer 2005 with SQL Express 2005 with VB as the code behindi have one database and three tables in itfor manipulating each table i am using separate SqlDataSource() is it sufficient to use one SqlDataSource() for manipulating all the three tables ? i am manipulating all the tables in the same page only please help me
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Aug 20, 2006
I have an asp:sqldatasource which is bound to a gridviewIn addition to this I would like it to a) see if there is a specif row/ item in it (ie item_id = 10 for any of the rows it has received) as I conditionally want to show another item outside of the gridview subject to if it is in the gridview or notb) show the sum of all the values within a certain column of returned rowsMany thanks
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Oct 11, 2006
How do I get the result of this select into a variableDim sqldsFindUserId As SqlDataSource = New SqlDataSource sqldsFindUserId.ConnectionString = ConfigurationManager.ConnectionStrings("bluConnectionString2").ToString sqldsFindUserId.SelectCommandType = SqlDataSourceCommandType.Text Dim myUserIdCmd As String = "select pkUser from tblUsers where strDisplayName='" + myDisplayname + "" sqldsFindUserId.SelectCommand = myUserIdCmd ' The result of this select statement is to be stored in a variable, how do I do it?
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Jan 15, 2007
hi all,
in all my 2.0 learnings and books i keep coming across the page element <asp:sqldatasource>.
I have always (in 1.1) used server side connections and adapters to bind my Sql datasets to any control needed. Now that im learning 2.0 im finding it difficult to understand using control on the page to bind my data. Can someone explain the benefits of using this data source? Ideally i would like to keep my data access layer separate from my presentation layer but i'd really like to understand why this method seems so popular.
thanks in advance,
mcm
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Feb 23, 2007
Hi, I am new to ASP.NET 2.0 and I am trying to use VWB to bind my web site to a SQL Express edition. I used SQLDataSource to specify the .mdf file so I can connect to my tables but when I click on the advanced button to generate the Insert, Update, Delete SQL I find it grayed out and it cannot be clicked. I looked into several tutorials online and I couldn't find the problem, can anyone explain what I am missing or doing wrong? Any suggestion is very appreciated. Thanks
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Mar 30, 2007
SELECT * FROM [CONTACTS] WHERE @ddl_value LIKE '%@txt_value%'
Why doesn't this not working
I am using SQLdatasource control to bind a gridview
If my query is wrong then what might be the correct one to work with like operator in the sqldatasource
Can any ony help me!
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Apr 12, 2007
Hello All,
I have quick question ..
In my aspx page i have gridview and Sql DataSource object as you can see
<asp:sqldatasource id="SqlDataSource1" runat="server" ></asp:sqldatasource>
<asp:gridview id="GridView1" runat="server" allowpaging="True" allowsorting="True" autogeneratecolumns="False" datasourceid="SqlDataSource1">
<columns>
<asp:boundfield datafield="breakdownid" headertext="breakdownid" insertvisible="False"
readonly="True" sortexpression="breakdownid" />
<asp:boundfield datafield="ticketno" headertext="ticketno" sortexpression="ticketno" />
<asp:boundfield datafield="systemtype" headertext="systemtype" sortexpression="systemtype" />
<asp:boundfield datafield="break_date" headertext="break_date" readonly="True" sortexpression="break_date" />
<asp:boundfield datafield="subject" headertext="subject" sortexpression="subject" />
<asp:boundfield datafield="status" headertext="status" sortexpression="status" />
<asp:boundfield datafield="prioritylevel" headertext="prioritylevel" sortexpression="prioritylevel" />
<asp:boundfield datafield="mobiletype" headertext="mobiletype" sortexpression="mobiletype" />
</columns>
</asp:gridview>
In codebehind file i call a function to get data from database. what i want is to bind the result to the sqlDataSourse not the gridview.
I need to have the SqlDataSourse thier.. Any help please
Sub Page_load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
Dim objReader As New Dynamic.Reportsdemo
SqlDataSource1 = .objReader.Get_Tickets(1, 0, "all")
SqlDataSource1.DataBind()
objReader.objconnection.Close()
End If
End Sub
Thanks.
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May 28, 2007
Hi!Please tell me, how to get a simple value using SQLDataSource, I mean a number, or char, or string - any value, NOT DataTable
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Jul 23, 2007
I am trying to get record from a table and verify it with a textbox i have a sqldatasource.
i have a text box called txtEmail and this is my Select command. how can i get this working if its possible ?
something like txtEmail.text = SqlDataSource1.Secect then ... my code. (i dont know if this a correct way to do this)
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:imacstestConnectionString %>"
SelectCommand="SELECT FROM [t_CustomerAcct]"
thanks,
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Aug 13, 2007
hi all,i am using sqldatasource for gridviewso that i can edit and update any row at the same place ..... and not to write any code for that....now later on if i wanna change the selectcommand of that sqldatasource how can i ? so that the edit and update will be same as it was....
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Aug 21, 2007
Hi,
I'm trying to go through a checkbox list and inserting them into a database using a sqldatasource with the following code:For Each li As ListItem In Locations_Checkbox.Items
If li.Selected = True Then
Dim DataSource2 As SqlDataSource = CType(InsertProgrammeLocations, SqlDataSource) DataSource2.InsertParameters.Add("ProgrammeID", li.Value)
DataSource2.Insert()
End If
Next
When more than one checkbox is ticked, I'm getting the error 'The variable name '@ProgrammeID' has already been declared'. How do I close or reset my Datasource before I try and use it again?
Thanks for your help
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Oct 28, 2007
please explain selectparameter collection and conflict detection property and filterparameter
mohsen
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Oct 29, 2007
Hi, I want to know when to use an sqlDataSource object because I used to populate for example a listBox control in visual studio net 2003 from AQLK server database by using a connection object, command object, dataAdapter object and a DataSet object. I discovered if I use sqlDataSource object (using visual studio net 2005) ,all I need is to write the connection string and a Select statement as properties for that sqlDataSource, so why to use the above mentioned objects(connection,command,adapter,dataset) while I can access any database in sql server through the use of sqlDataSource?
I appreciate if you can explain to me the difference and when to use an sqlDataSource
thx
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Dec 4, 2007
How can I update more than one table with one UpdateString in SqlDataSource?
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