ASP.NET

public void dg_OnItemDataBound(object sender, DataGridItemEventArgs e)<br />
		{<br />
			if(e.Item.ItemType==ListItemType.Item || e.Item.ItemType==ListItemType.AlternatingItem)<br />
			{<br />
				DataRow drv = e.Item.DataItem;<br />
				Label lbl = (Label)e.Item.FindControl("lblValue");<br />
				lbl.Text = drv["Quantity"].ToString() * drv["Unit Price"].ToString();<br />
				DropDownList dd = (DropDownList)e.Item.FindControl("ddl");<br />
				string str = "javascript:return ValFunc(" + dd.ClientID.ToString() + ");";<br />
				dd.Attributes.Add("onChange",str);<br />
<br />
<br />
			}<br />
		}