Paging through the gridview

Error:System.NullReferenceException: Object reference not set to an instance of an object.

Hi! I get an error on this block:

protectedvoid gvSearch_SelectedIndexChanged(object sender,EventArgs e)

{

try

{

// This will contain the selectedValue of the row

string selectedCategory = gvSearch.SelectedRow.Cells[1].Text;

}

catch (Exception err)

{

lblError.Text = err.ToString();

}

}

I got the numbers showing at the bottom of the gridview, but when I click on a number i get this error. Thanks for the help!

To access SelectedRow in GridView you need to set enableSelection Property to True.