//bind gvLeaveChild
protected void gvLeaveDetails_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
GridView gvLeaveChild = (GridView)e.Row.FindControl("gvLeaveChild");
DataTable dt = leave.FetchLeaveChildDetails(Convert.ToInt32(gvLeaveDetails.DataKeys[e.Row.RowIndex].Value));
if (dt.Rows.Count > 0)
{
gvLeaveChild.DataSource = dt;
gvLeaveChild.DataBind();
}
else
{
//no data found
}
}
}