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Trapping Click/Command Event for run time image buttons

P: n/a
I have the code snippet below. I fill a table of imagebuttons and would
like to know which one was clicked to trigger the post back. Unfortunately,
the Command event does not fire unless I load the images on the load_page
event. Since I want to load the table of images based on the click event
from another control, and only based on feedback from some controls do I
even display the image list, I thought I could trap the command or click
event, but I can not.

Any ideas? Thanks in advance.

Protected WithEvents img As System.Web.UI.WebControls.ImageButton

Public Sub GoItem(ByVal sender As System.Object, ByVal e As
System.Web.UI.WebControls.CommandEventArgs) Handles img.Command

Response.Write("<script language=javascript>window.alert('Image1 was
commanded with commandarg = " & sender.CommandArgument & "')</script>")

End Sub

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load

'Put user code to initialize the page here

' IF I LOAD IT HERE IT WORKS OF COURS - FillImages(10, 0)

End Sub

Private Sub btnFillTable_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnFillTable.Click

' ----------------- HERE ID DOES NOT

FillImages(10, 100)

End Sub

Public Sub FillImages(ByVal image_count As Integer, ByVal start_value As
Integer)

Dim tr As System.Web.UI.WebControls.TableRow

Dim td As System.Web.UI.WebControls.TableCell

Dim img As New System.Web.UI.WebControls.ImageButton

Dim i As Integer

Table1.Rows.Clear()

For i = 1 To 10

tr = New System.Web.UI.WebControls.TableRow

td = New System.Web.UI.WebControls.TableCell

img = New ImageButton

img.ID = "img" & "_" & i.ToString()

img.ImageUrl = "images/small_note.gif"

img.CommandName = "Contact" & i

img.CommandArgument = i + start_value

AddHandler img.Command, AddressOf GoItem

img.EnableViewState = False

td.Controls.Add(img)

tr.Cells.Add(td)

Table1.Rows.Add(tr)

Next

End Sub

'End Sub


Jul 19 '05 #1
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