Dynamically Added Linkbutton EventHandler

[Casey]

I’m really hoping someone can help me out on this. I’m adding a user control to a page that has, among other items, a link button. I’m trying to add an event handler to that link button. The control is added just fine, and the link button appears, but when I click on it, nothing happens.

Sub AddControl()
control_count = control_count + 1
Dim new_control As Control = New Control()
new_control = LoadControl("admin_distribute_points_line_items.as cx")
new_control.ID = "ctlLineItems" & control_count

Dim linkButtonCalc As LinkButton = new_control.FindControl("lbCalc")
AddHandler linkButtonCalc.Click, AddressOf linkButtonCalc_Click

plhDistribute.Controls.Add(new_control)
End Sub

Protected Sub linkButtonCalc_Click(ByVal sender As Object, ByVal e As EventArgs)
‘PROBLEM: I NEVER GET HERE WHEN THE LINK BUTTON IS CLICKED
End Sub

Any ideas? Thanks!

Casey

[stlarmon]

Your code worked fine for me.
I would verify the names of the controls you're loading.
For Example: You're trying to find lbCalc (usually people use lblCalc).

Does the control show up on the page?
Is there an error your getting?

Let me know if I can be of any more help

I’m really hoping someone can help me out on this. I’m adding a user control to a page that has, among other items, a link button. I’m trying to add an event handler to that link button. The control is added just fine, and the link button appears, but when I click on it, nothing happens.

Sub AddControl()
control_count = control_count + 1
Dim new_control As Control = New Control()
new_control = LoadControl("admin_distribute_points_line_items.as cx")
new_control.ID = "ctlLineItems" & control_count

Dim linkButtonCalc As LinkButton = new_control.FindControl("lbCalc")
AddHandler linkButtonCalc.Click, AddressOf linkButtonCalc_Click

plhDistribute.Controls.Add(new_control)
End Sub

Protected Sub linkButtonCalc_Click(ByVal sender As Object, ByVal e As EventArgs)
‘PROBLEM: I NEVER GET HERE WHEN THE LINK BUTTON IS CLICKED
End Sub

Any ideas? Thanks!

Casey

[Casey]

It works? Hmm.

The names are correct. I usually use lbl____ for a label, and lb____ for a linkbutton. The linkbutton does show up on the page, and I can even change attributes of it, like the text.

A variable that I had not mentioned before is that the user has the ability to add as many of the user controls as they want, and each control contains a link button. so, when the page loads, the first control is loaded which contains a link button. When the user clicks an "Add" button (outside of the control) a new instance of the user control is added, with a another link button.

I have been working on this for too long. I need to find another way to skin this cat. Thanks for your help!

Casey

[stlarmon]

Sorry about the lbl... I've been working too long. I meant to say lnk_ for link.
I'll check to see if multiple controls load through the AddControl Sub.

It works? Hmm.

The names are correct. I usually use lbl____ for a label, and lb____ for a linkbutton. The linkbutton does show up on the page, and I can even change attributes of it, like the text.

A variable that I had not mentioned before is that the user has the ability to add as many of the user controls as they want, and each control contains a link button. so, when the page loads, the first control is loaded which contains a link button. When the user clicks an "Add" button (outside of the control) a new instance of the user control is added, with a another link button.

I have been working on this for too long. I need to find another way to skin this cat. Thanks for your help!

Casey