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donaldcroswell

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Could not find control - in ControlParameter -

Hello All

I have a repeater with controls, some draw from different SqlDatasources.

Everything loads up properly, I click my update button and then I get the error:

"Could not find control 'txtProjectName' in ControlParameter 'projectName'"

The Control txtProjectName is in the repeater <itemTemplate>

<asp:TextBox ID="txtProjectName" runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "projectName") %>' />

My Datasource that I want to update looks like this:
  <asp:SqlDataSource ID="dsEditProject" runat="server" ConnectionString="<%$ ConnectionStrings:webtoolConn %>" >
    <UpdateParameters>
        <asp:ControlParameter ControlID="txtProjectName" PropertyName="Textbox.Text" Name="projectName" Type="String" />
    </UpdateParameters>

My code behind looks like this:

Protected Sub rptEditProject_ItemCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.RepeaterCommandEventArgs) Handles rptEditProject.ItemCommand

Dim projectId As String = Request.QueryString("projectId")

dsEditProject.UpdateCommand = "UPDATE [projects] SET [projectName] = @projectName WHERE [projectId] = " & projectId & ";"

dsEditProject.Update()



End Sub

It gets to the dsEditProject.Update and errors saying it can't find the control. If I hard code the "@projectName" in the update command everything works. It just isn't setting the parameterControl to what is in the textbox.

Also, if I set the parameter with asp:parameter it will put in whatever I put as the default.



How do I get the controlParameter to grab what is in txtProjectName?



Many thanks

Don
Avatar of Sammy
Sammy
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change
        <asp:ControlParameter ControlID="txtProjectName" PropertyName="Textbox.Text" Name="projectName" Type="String" />
To
        <asp:ControlParameter ControlID="txtProjectName" PropertyName="Text" Name="projectName" Type="String" />

HTH
Avatar of bele04
bele04

since your textbox is inside your repeater tendency is that when .NET generates the html code for that it's client ID is changed to something like "Repeater1$ctl##$txtProjectName" (the ## dpends on what row of the control you're editing...ie. row2 = Repeater1$ctl02$txtProjectName) that's why it can't find the textbox when it looks for the source of the controlparameter.  

I suggest you just make it a parameter but if you insist on making it a controlparameter then you'll have to set a defaultvalue for it on your codebehind still and just assign the controlID to another control that it can find so it doesn't return an error.  Up to now I still haven't found a way yet to dynamically assign a control to a controlparameter when it's inside a control like a datagrid or repeater and etc...
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ASKER

so how do I set the value of the parameter to be the value in the box?

<asp:Parameter Name="projectName" Type="String" />
ASKER CERTIFIED SOLUTION
Avatar of bele04
bele04

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Thanks! that worked great.

Actually the e.Item.ItemIndex gave me a out of range error but I just put in "0" as it only returns one row and that worked.

Cheerios!