how to retrieve cell value from grid view using button column in c#

[rameshgohil]

I am using grid view and a button column in it using <itemTemplate>
but I am not able to rerive cell value of a selected row from grid view.
I have tried the following to methods in Row_command event of gridview but it gives Null reference exception error while clicking the button in button column of grid view :

 int index = gdvOdetails.SelectedIndex;
        object oid = (object)gdvOdetails.SelectedDataKey.Values["o_id"];
        txtMsg.Text = oid.ToString();
 
 for (int i = 0; i < gdvOdetails .Rows .Count ; i++)
            {
                if (gdvOdetails.SelectedIndex == i)
                {
                    txtMsg .Text  =gdvOdetails.Rows[i].Cells[1].Text; 
                }
            }
 

can any one help to retrieve cell value of grid in any variable using button column

[Frinavale]

I am using grid view and a button column in it using <itemTemplate>
but I am not able to rerive cell value of a selected row from grid view.
I have tried the following to methods in Row_command event of gridview but it gives Null reference exception error while clicking the button in button column of grid view :

 int index = gdvOdetails.SelectedIndex;
        object oid = (object)gdvOdetails.SelectedDataKey.Values["o_id"];
        txtMsg.Text = oid.ToString();
 
 for (int i = 0; i < gdvOdetails .Rows .Count ; i++)
            {
                if (gdvOdetails.SelectedIndex == i)
                {
                    txtMsg .Text  =gdvOdetails.Rows[i].Cells[1].Text; 
                }
            }
 

can any one help to retrieve cell value of grid in any variable using button column

Unless your button is a Select button, your gdvOdetails.SelectedIndex will be nothing (because no row is selected). Try using a "select" button instead of a command button in your GridView.

-Frinny

[Plater]

If the button they clicked is IN the row that you want, you can get the row/column indexes from the event.