Event not firing on a runtime-addedd control

[LsK_Lele]

Hi,

I have a problem in my C# web project: I have extended the GridView
class to add some sorting features. Additionally, I need to add a
quick-filter table at the bottom of this control, that will allow me to
implement this feature in all my grids.
I thought to simply add a table in the gridview OnPreRender event, with
soem cells and 1 link on each cell, but the Click event attached on the
links never fires... here's my code:

---------------
public class MyGridView : GridView
{
private int footerRowIndex = 0;
private Table filterTable;

public MyGridView()
{
}

protected override void OnRowCreated(Gr idViewRowEventA rgs e)
{
base.OnRowCreat ed(e);

if (e.Row.RowType == DataControlRowT ype.Footer)
{
filterTable = MakeAlphabetTab le();
}
else ++footerRowInde x;
}
protected override void OnPreRender(Eve ntArgs e)
{
base.OnPreRende r(e);

Table tbl = this.FooterRow. Parent as Table;
if (tbl != null) CreateFooterRow (tbl, footerRowIndex + 1);
}
private void CreateFooterRow (Table tbl, int index)
{
GridViewRow row = new GridViewRow(-1, -1,
DataControlRowT ype.Footer, DataControlRowS tate.Normal);
TableCell cell = new TableCell();
cell.Controls.A dd(filterTable) ;
cell.ColumnSpan = this.Columns.Co unt;
row.Cells.Add(c ell);
row.ID = "AlphabeticalFi lter_" + i;
tbl.Rows.AddAt( index, row);
}
private Table MakeAlphabetTab le()
{
Table item = new Table();
TableRow row = new TableRow();

for (char i = char.Parse("A") ; i <= char.Parse("Z") ; i++)
{
TableCell cell = new TableCell();
LinkButton btn = new LinkButton();

btn.Text = ((char)i).ToStr ing().ToLower() ;
btn.Click += new EventHandler(On Filtering);

cell.Controls.A dd(btn);
row.Controls.Ad d(cell);
}
item.Controls.A dd(row);

return item;
}
protected virtual void OnFiltered()
{
}
void OnFiltering(obj ect sender, EventArgs e)
{
//do something
}
}
---------------

My problem is that the function OnFiltering will never be called on this
code.

Can someone please help me understanding what happens?

Thank you!

[Ignacio Machin ( .NET/ C# MVP )]

if you add any control by code you need to add it again in postback,
also make sure of use an unique Id as the control's ID

[LsK_Lele]

Ignacio Machin ( .NET/ C# MVP ) ha scritto:

if you add any control by code you need to add it again in postback,
also make sure of use an unique Id as the control's ID

Hi Ignacio,

I have done all of this, but the click event is not firing again...

Thank you