Why databind is required while editing datagrid?

[Aayush Puri]

I was going through an article on datagrid control in ASP.NET and found the
use of databind a bit confusing.
So the default behavior in a editable datagrid row is to show a Update and a
Cancel Button when a user wants to edit the datagrid.
What I found confusing was the use of databinding when this cancel button is
pressed. When we are pressing the Cancel button we are not changing the
datasource...th en why do we need to re-bind the web control to the datasource.

DataGrid1.EditI temIndex = -1
DataGrid1.DataB ind()
Similarily we use databind to re-bind the datagrid, when the user clicks the
row he wants to edit.

DataGrid1.EditI temIndex = e.Item.ItemInde x
DataGrid1.DataB ind()

What am I missing here?

Regards,
-Aayush

[Elton Wang]

Hi Aayush,

Binding a datagrid's underlying data source happens in
datagrid.DataSo urce = dataObject

rather than in

datagrid.DataBi nd()

The datagrid.DataBi nd() is only process of datagrid. For
example, when in Edit event it sets

DataGrid1.EditI temIndex = e.Item.ItemInde x
DataGrid1.DataB ind()

After processing, the selected row becomes eatable row
(with editable textboxes and Update, Cancel buttons).

HTH

Elton Wang
el********@hotm ail.com

-----Original Message-----
I was going through an article on datagrid control in ASP.NET and found theuse of databind a bit confusing.
So the default behavior in a editable datagrid row is to show a Update and aCancel Button when a user wants to edit the datagrid.
What I found confusing was the use of databinding when this cancel button ispressed. When we are pressing the Cancel button we are not changing thedatasource...t hen why do we need to re-bind the web control to the datasource.
DataGrid1.Edit ItemIndex = -1
DataGrid1.Data Bind()
Similarily we use databind to re-bind the datagrid, when the user clicks therow he wants to edit.

DataGrid1.Edit ItemIndex = e.Item.ItemInde x
DataGrid1.Data Bind()

What am I missing here?

Regards,
-Aayush
.