protected void BtnDel_Click(object sender, EventArgs e)
{
this.DGrdMarket.EditItemIndex = -1;
TaskRelationCollection taskRelationCollection = this.DGrdMarket_GetData();
taskRelationCollection.RemoveAt(int.Parse(this.HdnSelectedIndex.Value));
this.DGrdTender_Bind(taskRelationCollection);
}
