get value from Gridview

[sbao004]

Hi, I want to get the value of "OrderID", which is the first colum in the Gridview2, from the Gridview when a specific row is selected with hard coding. My code is: Session("OrderID") = Convert.ToString(CType(GridView2.Rows(GridView2.EditIndex).FindControl("Label4"), Label).Text) I've also tried to use GridView2.SelectedIndex, which always returns -1, which is an invaliad index value. or GridView2.SelectedRow.Cells(1).Text but it seems the SelectedRow is always nothing. So I don't know what is wrong with me. Can anyone help please? Thank you.

[Jay_se]

Hi, I didnt find any problem with your code. Which Event handler did you used? The below is sample code in C#.For your help[^] protected void GridView1_SelectedIndexChanged(object sender, EventArgs e) { Label1.Text = GridView1.SelectedRow.Cells[2].Text; int index = GridView1.SelectedIndex; } But , if you are used this code in SelectedIndexChanging event handler, it won't give correct value.

Regards, Jay :)

[sbao004]

I convered the image button in the Gridview into the Templet, and used the ImageButton1_Click event handler. I think because when you select the row, it will change the row index to "-1", which does not really exist in the GridView, By using: Session("OrderID") = Convert.ToString(CType(GridView2.Rows(GridView2.SelectedIndex).FindControl("Label4"), Label).Text) it keeps on throw me the error that "Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index" Otherwise if I use: Session("OrderID") = Convert.ToString(CType(GridView2.SelectedRow.FindControl("Label4"), Label).Text) It will say " Object reference not set to an instance of an object." So it just doesn't work. I don't know how to use these 2 properties. Can you please help? Thanks,

[Jay_se]

sbao004 wrote:

when you select the row, it will change the row index to "-1"

Your SelectedRow property of GridView may not give you the exact Row which is selected currently ( in SelectedIndexChanging event handler, ofcourse which fires first when you select the Row). Have a look at NewSelectedIndex Property[^] What are the GridView event handlers did you used?

Regards, Jay :)