Editing Selected GridView Row using Textboxes (in a div)

Hello.

I am wondering how I can edit a selected row (by a link button) by showing the cell values in textboxes.

I have this code so far.

ASP.NET
-----------------

CellPadding="4" ForeColor="#333333" EmptyDataText= "No current record found in the database." Width="868px" OnRowCommand="GridViewRowCommand"><%--OnRowDeleting="EmpLeaveAppGV1_SelectedIndexChanged"--%>

-----------------

C# Code Behind
------------

protected void GridViewRowCommand(Object sender, GridViewCommandEventArgs e)

{

if (e.CommandName=="EditPending")

{

int LeaveTranID = Convert.ToInt32(e.CommandArgument);

int rowindex = EmpLeaveAppGV1.SelectedIndex;

Label lblLeaveType = (Label)(EmpLeaveAppGV1).Rows[rowindex].FindControl("lblLeaveType");

txtLeaveType.Text = lblLeaveType.Text;

div1.Visible = true;

}

------------

And can someone explain to me what this line of code can do? plss make it specific, I cant understand the .Parent.Parent

using (GridViewRow row = (GridViewRow)((LinkButton)sender).Parent.Parent)

i just found this on the internet..
Any help would be so much appreciated.
Thanks and have a nice day!