i used that one but it's wan't wrok for me

can u give me some expamle of  that coding

and any properties i have to set for that webgrid

Maybe there's no active row at that point. If you're not selecting any row before triggering that event you'd probable get this kind of exception.. I suggest you place a breakpoint when you try to get the active row to see if it return an actual row.

You can try something like

UltraGridRow row = grid.DIsplayLayout.ActiveRow;

if(row != null)

{

  //and here get the value from the cell

}

Here is  heml code

<bands>

<igtbl:UltraGridBand>

<Columns>

<igtbl:UltraGridColumn Type="Button">

<header caption="Select">

</header>

</igtbl:UltraGridColumn>

IsBound="True" Key="FirstName">

<header caption="FirstName">

<rowlayoutcolumninfo originx="1" />

</header>

<footer>

<rowlayoutcolumninfo originx="1" />

</footer>

</igtbl:UltraGridColumn>

IsBound="True" Key="LastName">

<header caption="LastName">

<rowlayoutcolumninfo originx="2" />

</header>

<footer>

<rowlayoutcolumninfo originx="2" />

</footer>

</igtbl:UltraGridColumn>

</Columns>

<addnewrow view="NotSet" visible="NotSet">

</addnewrow>

</igtbl:UltraGridBand>

</bands>

I don't seem to get what the problem could be.. If you have at least one row selected it should be already in the SelectedRows colection.. Have you tried with the ActiveRow too? As I told you this one returns the single row that has the focus at that moment. Althog by the code you provided, I also do not see the functionality you're trying to achieve. Maybe you could try to explain a little bit more your scenario and specify if there's any other control in te equation.

Hello,

I think the problem here is that databinding occurs prior to executing the postback event handler that gets the selected rows. The problem is that databinding essentially clears the selected rows collections (empties the grid and rebinds again).

You can try moving the code databinding the grid from Page_Load to the grid InitializeDataSource event. Also, you can check the lifecycle of the page.

I believe a very similar thread with a similar problem is discussed (SelectedRows.Count = 0 even when rows are selected) here:

http://forums.infragistics.com/forums/p/11104/42129.aspx

Hi all

Thanks for all these help