Question

I have a button within a formview control on my page.

Because the button is contained within the formview, my code-behind can’t see it.

So I did this:

Dim btnSave As Button = CType(fvCourse.FindControl("btnSave"), Button)

And then I added an event handler like this:

AddHandler btnSave.Click, AddressOf btnSave_Click

Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
    Response.write("hey!")
End Sub

The problem is, I don’t think it’s working because I never see the “hey!” on my page.

Am I missing something?

Thanks

Answer 1

I don’t know about missing something, but I reckon you could do it a simpler way since you’re using VB. Give your button a command name and command argument first:

<asp:Button ID="Button1" runat="server" onclick="Button1_Click"
CommandArgument="1" CommandName="yes" />

These can be anything – typically you use the command name to determine which button a user clicked on, and the command argument to show the record id.

In your code-behind, attach a macro to the ItemCommand event of the FormView (which fires when something happens within it):

 Protected Sub FormView1_ItemCommand(sender As Object, e As System.Web.UI.WebControls.FormViewCommandEventArgs) Handles FormView1.ItemCommand

    Select Case e.CommandName.ToLower
        Case "yes"

            'test
            Label2.Text = "You chose " & e.CommandArgument.ToString

    End Select
End Sub Protected Sub FormView1_ItemCommand(sender As Object, e As System.Web.UI.WebControls.FormViewCommandEventArgs) Handles FormView1.ItemCommand

    Select Case e.CommandName.ToLower
        Case "yes"

            'test
            Label2.Text = "You chose " & e.CommandArgument.ToString

    End Select
End Sub

And in VB, that’s all you need to do!