dataGrid_ItemCommand

shai505 · February 23rd, 2006, 05:14 PM

I am try to make possible , to delete row from a dataSet using dataGrid.

but my dataGrid_ItemCommand event is never fire,
my code is:

Code:

private void dgOrders_ItemCommand(object sender, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
  if ( e.CommandName == "Delete")
  {
      int intOrderID = Convert.ToInt16
    (dgOrders.Items[e.Item.ItemIndex].Cells[0].Text);
      DataRow rowDelete = dsOrders1.Orders.NewRow();
      rowDelete = dsOrders1.Orders.FindByOrderID(intOrderID);
      rowDelete.Delete();
      dgOrders.DataBind();
  }

agarwalvidhu · February 24th, 2006, 01:24 AM

Hi

There could be two possibilities becuase of which the code is never executed. First, there is no handler for this event under web generated designer code region. Second thing could be that the datagrid is binded everytime the page is loaded. Please check if the datasource of the datagrid is set only if the the page is nt posted back

Lets c if that solves your problem..:)

shai505 · February 24th, 2006, 05:57 AM

Thanks but , I do not think these are the problems , I wrote the following code and it does not work :

this.dgOrders.ItemCommand += new System.Web.UI.WebControls.DataGridCommandEventHand ler(this.dgOrders_ItemCommand);

private void Page_Load(object sender, System.EventArgs e)
{
if (!IsPostBack)
{
    daOrders.Fill(dsOrders1);
    Session["dsOrders1"] = dsOrders1;
}
else
      dsOrders1 = (dsOrders)Session["dsOrders1"];
dgOrders.DataBind();
}

agarwalvidhu · February 24th, 2006, 06:06 AM

Hi..got the actual problem after going through the code that you have written.
It actually is the problem of datagrid binding only that i was talking of in my last msg...

U have given dgOrders.dataBind() outside postback loop. Before going to the definition of Item Command EVent, Page Load is executed and ur datagrid is binded again and hence the item command event is not fired.
Modify your code a little bit and write it this way

private void Page_Load(object sender, System.EventArgs e)
{
if (!IsPostBack)
{
    daOrders.Fill(dsOrders1);
    Session["dsOrders1"] = dsOrders1;
     dgOrders.DataBind();
}
else
      dsOrders1 = (dsOrders)Session["dsOrders1"];

}

Your DataBind command must be called just once only when the page is loaded first time.
This will for sure resolve the problem
:)

shai505 · February 24th, 2006, 07:33 AM

thank U for your help :)