|
 |
aspx thread: Referencing an asp:Checkbox contorl to a row (item) in a datagrid
Message #1 by "Sascha Ederer" <sascha@e...> on Thu, 18 Oct 2001 11:10:56
|
|
Dear Experts,
I use a DataGrid to diplay the contents of a database table on a .aspx
site. I added a column, bearing a checkbox, to select items out of the
DataGrid.
I tried to use an event handler to react to every click at the checkboxes.
When an item (row of the DataGird) is selected / deselected, the
coresponding item should be stored /deleted immediately in a separate
database.
The problem is, that I am not able to get a reference from the checkbox to
the corresponding datarow of the datagrid, when the "oncheckedchanged"
event of the checkbox is fired. My first idea was to use the ID of the
checkboxes, but the checkboxes in the different rows of the datagrid have
all the same ID, as defined at the ItemTemplate within the "<ASP:DataGrid"
tag.
Is there any other (hopefully comfortable) way to reference to a row
within a datagrid, or an other event (maybe a helpful DataGrid event)? I
already tried the OnItemCommand event of the datagrid, but this seems to
work only with command buttons and not with checkboxes.
Thanks in advance for your helpful advices.
Regards,
Sascha
Message #2 by "Chris Scott" <chris@e...> on Thu, 18 Oct 2001 13:16:31 -0700
|
|
Hi Sascha,
I found a solution to a similar problem, but was using buttons instead of a
check box:
- add an OnItemCommand attribute to the datagrid e.g.
OnItemCommand="myHandler"
- add CommandName attributes to the buttons e.g. CommandName="Save" &
CommandName="Delete"
- Create the handler:
void MyHandler(object sender, DataGridCommandEventArgs e)
{
if(e.CommandName="Save")
{
...save code here...
}
if(e.CommandName="Delete")
{
...delete code here
}
}
In your save/delete code you can access the datagrid cells for the row:
string myCellValue=e.Item.Cells[1].Text;
HTH
Chris
Message #3 by "Sascha Ederer" <sascha@e...> on Thu, 18 Oct 2001 14:18:17
|
|
Dear Chris,
I tried your solution, but the problem with checkboxes is, that they don't
have the "CommandName" attribute that buttons have. But I keep your clue
in mind and try to use Buttons instead of Checkboxes, if there is no other
comfortable solution.
Thanks alot,
Sascha
|
|
 |