Asp.net RenderControl method not rendering autopostback for dropdownlist
- by Tanya
Hi all,
i am bit confused as to why asp.net does not render a dropdownlist with the autopostback property set to true when using the RenderControl method.
eg
Dim sw As New IO.StringWriter
Dim tw As New HtmlTextWriter(sw)
Dim table As New Table
table.Rows.Add(New TableRow)
Dim tr As TableRow = table.Rows(0)
tr.Cells.Add(New TableCell)
Dim tc As TableCell = tr.Cells(0)
Dim ddlMyValues As New DropDownList
ddlMyValues.ID = "ddl1"
ddlMyValues.Items.Add("Test1")
ddlMyValues.Items.Add("Test2")
ddlMyValues.Items.Add("Test3")
ddlMyValues.AutoPostBack = True
tc.Controls.Add(ddlMyValues)
table.RenderControl(tw)
Debug.WriteLine(sw.ToString)
my output renders the dropdown list without the onchange="javascript:setTimeout('__doPostBack(\ddl1\',\'\')', 0)"
that is generated by asp.net when using the dropdownlist normally.
Is there a work around to this?
