Howdy, I think I have a good question!
I'm creating a usercontrol, and within this usercontrol, I'm dynamically
creating controls (imagebuttons to be exact), that the user can click on
which will cause a postback to occur.
My problem is, I can't seem to be able to get the handlers to work within
the user control, to determine which control has been clicked, and what to
do with it from there.
I want these events to be handled within the user control itself, and not
the page that has the user control.
Here is what I've been doing:
'I'm adding this imagebutton to a tablecell I'm dynamically creating as
well, for simplicity i'm not showing that this code is part of a for each
loop, and it can be ran many times...
Dim dImage as ImageButton = new ImageButton
AddHandler dImage.click, AddressOf DeleteButton_Click
dImage.imageurl = "../images/delete.gif"
dImage.tooltip = "Delete this Item"
tblcellDelete.Controls.Add(dImage) 'tcDelete is a TableCell
tblRow.Controls.Add(tcDelete) 'trow is a TableRow
tblShow.Controls.Add(trow) 'tblShow is a Table
Then I create the event handler in the user control
Sub DeleteButton_Click(ByVal sender As Object, ByVal e As
System.Web.UI.ImageClickEventArgs)
Response.Write("clicked an image?")
End Sub
For now I'm just using Response.write with a breakpoint on that line to see
if that code executes. Unfortunately the DeleteButton_Click Sub is never
called, the page just posts back. Can someone tell me the proper way to
handle events for dynamically created controls within user controls?
Thanks!
--Michael 2 4207
I've done a similar thing myself, emphasis on SIMILAR.
I fix my similar problem I had to reload all of the dynamic controls on each
postback, the viewstate info then allowed the events to take place.
Hope that helps
"Michael Ramey" <raterus@localhost> wrote in message
news:Ox**************@TK2MSFTNGP11.phx.gbl... Howdy, I think I have a good question!
I'm creating a usercontrol, and within this usercontrol, I'm dynamically creating controls (imagebuttons to be exact), that the user can click on which will cause a postback to occur.
My problem is, I can't seem to be able to get the handlers to work within the user control, to determine which control has been clicked, and what to do with it from there.
I want these events to be handled within the user control itself, and not the page that has the user control.
Here is what I've been doing:
'I'm adding this imagebutton to a tablecell I'm dynamically creating as well, for simplicity i'm not showing that this code is part of a for each loop, and it can be ran many times...
Dim dImage as ImageButton = new ImageButton
AddHandler dImage.click, AddressOf DeleteButton_Click dImage.imageurl = "../images/delete.gif" dImage.tooltip = "Delete this Item" tblcellDelete.Controls.Add(dImage) 'tcDelete is a TableCell tblRow.Controls.Add(tcDelete) 'trow is a TableRow tblShow.Controls.Add(trow) 'tblShow is a Table
Then I create the event handler in the user control
Sub DeleteButton_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Response.Write("clicked an image?") End Sub
For now I'm just using Response.write with a breakpoint on that line to
see if that code executes. Unfortunately the DeleteButton_Click Sub is never called, the page just posts back. Can someone tell me the proper way to handle events for dynamically created controls within user controls?
Thanks! --Michael
Worked great, just one thing, the button i'm writing the event for is a
"delete" button, so on a postback, I wouldn't want it to appear again. I
suppose I can search and delete the control before it is rendered again.
Thanks for the info, it did help.
"Felbrigg" <so*****@microsoft.com> wrote in message
news:Od****************@tk2msftngp13.phx.gbl... I've done a similar thing myself, emphasis on SIMILAR. I fix my similar problem I had to reload all of the dynamic controls on
each postback, the viewstate info then allowed the events to take place.
Hope that helps
"Michael Ramey" <raterus@localhost> wrote in message news:Ox**************@TK2MSFTNGP11.phx.gbl... Howdy, I think I have a good question!
I'm creating a usercontrol, and within this usercontrol, I'm dynamically creating controls (imagebuttons to be exact), that the user can click on which will cause a postback to occur.
My problem is, I can't seem to be able to get the handlers to work
within the user control, to determine which control has been clicked, and what
to do with it from there.
I want these events to be handled within the user control itself, and
not the page that has the user control.
Here is what I've been doing:
'I'm adding this imagebutton to a tablecell I'm dynamically creating as well, for simplicity i'm not showing that this code is part of a for
each loop, and it can be ran many times...
Dim dImage as ImageButton = new ImageButton
AddHandler dImage.click, AddressOf DeleteButton_Click dImage.imageurl = "../images/delete.gif" dImage.tooltip = "Delete this Item" tblcellDelete.Controls.Add(dImage) 'tcDelete is a TableCell tblRow.Controls.Add(tcDelete) 'trow is a TableRow tblShow.Controls.Add(trow) 'tblShow is a Table
Then I create the event handler in the user control
Sub DeleteButton_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Response.Write("clicked an image?") End Sub
For now I'm just using Response.write with a breakpoint on that line to see if that code executes. Unfortunately the DeleteButton_Click Sub is
never called, the page just posts back. Can someone tell me the proper way to handle events for dynamically created controls within user controls?
Thanks! --Michael
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