Dynamic Checkboxes event handling

[Rob C]

Hi all,

I am dynamically creating checkboxes and am having trouble getting them to launch the OnCheckedChanged event when they are clicked. I am am getting a Postback event when they are checked or unchecked but that is all.

Here is the code I am using to create my checkboxes in the Page_load function:
For i = 0 To 5
Dim cell As New TableCell()
Row.Cells.Add(cell)
Dim cb As New CheckBox()
cb.ID = "cb" & i
cb.AutoPostBack = True
cb.Checked = True
cb.Attributes.Add("OnCheckedChanged", "cbCheckChanged")
cell.Controls.Add(cb)
Next i

If I add a checkbox to the apsx page manually then it calls the event just fine.

All help is appreciated.

Rob C.

 

[Alvin Bruney]

wire your oncheckchanged event to its handler. look at initialize component
function in the aspx page to get an idea how to do it.
cb.Check += new eventargs(this.control_checkchanged) roughly

Hi all,

I am dynamically creating checkboxes and am having trouble getting them to
launch the OnCheckedChanged event when they are clicked. I am am getting a
Postback event when they are checked or unchecked but that is all.

Here is the code I am using to create my checkboxes in the Page_load
function:
For i = 0 To 5
Dim cell As New TableCell()
Row.Cells.Add(cell)
Dim cb As New CheckBox()
cb.ID = "cb" & i
cb.AutoPostBack = True
cb.Checked = True
cb.Attributes.Add("OnCheckedChanged", "cbCheckChanged")
cell.Controls.Add(cb)
Next i

If I add a checkbox to the apsx page manually then it calls the event just
fine.

All help is appreciated.

Rob C.

 

[Rob C]

I apologize if I am not getting what you are saying. There is no code in my InitializeComponent procedure to look at. I attempted different variations of your code line below. The procedure I am trying to call is cbCheckChanged so I used that in the eventargs parenthesis but that didn't work because "new" said I was overriding it and it takes no arguments.

Here is my code again:
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim Row As New TableRow()
tblClass.Rows.Add(Row) 'tblClass is my precreated table
Dim i As Integer
For i = 0 To 5
Dim cell As New TableCell()
Row.Cells.Add(cell)
Dim cb As New CheckBox()
cb.ID = "cb" & i
cb.AutoPostBack = True
cb.Checked = True
cb.Checked += New EventArgs(Me.cbCheckChanged(sender, e))
cb.Attributes.Add("OnCheckedChanged", "cbCheckChanged")
cell.Controls.Add(cb)
Next i
End Sub

Public Sub cbCheckChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
Trace.Warn("works here")
End Sub

All help is appreciated.