Retrieving SelectedValue from DropDownList

[AlBruAn]

I have a few DropDownList controls used for new record entry in the footer of
a datagrid and I want to limit the options available in one list based on
what is selected in a previous list; I've seen examples of this where the
DropDownLists are used in edit mode, but none for data entry mode. The
footer cell for one column is defined as:

<FooterTemplate>
<asp:DropDownList ID="cboWorkflowID" AutoPostBack="true"
OnSelectedIndexChanged="OnSelectedIndexChanged" DataSource='<%#
GetWorkflowIDs() %>' Runat="server" DataMember="WorkflowID"
DataTextField="WorkflowID" />
</FooterTemplate>

Setting a breakpoint in the function OnSelectedIndexChanged, I am able to
pull up the Command Window and see the SelectedValue by typing in:
? ( ListControl ) sender. Despite that, I can't for the life of me figure
out how to programmatically retrieve the value. I've tried virtually every
permutation of ((DropDownList)(_grid.Items[0].FindControl("cboWorkflowID")))
I can think of, but to no avail. Is there a way?

Regards,

Allen Anderson

[Brock Allen]

> ((DropDownList)(_grid.Items[0].FindControl("cboWorkflowID"))) I can

> think of, but to no avail. Is there a way?

You're close, but grab the _grid.Item[x].FindControl where x is the row in
the grid for the footer.

-Brock
DevelopMentor
[url]http://staff.develop.com/ballen[/url]

[AlBruAn]

"Brock Allen" wrote:

> > ((DropDownList)(_grid.Items[0].FindControl("cboWorkflowID"))) I can
> > think of, but to no avail. Is there a way?

>
> You're close, but grab the _grid.Item[x].FindControl where x is the row in
> the grid for the footer.
>
> -Brock
> DevelopMentor
> [url]http://staff.develop.com/ballen[/url]
>
>

Brock,

I tried (((DropDownList)(_grid.Items[9].FindControl("cboWorkflowID"))) but
it refuses to work since a count of 9 is returned when asking for
_grid.Items.Count.

Allen

[Brock Allen]

Collections are zero-based, so access the position at Count - 1

-Brock
DevelopMentor
[url]http://staff.develop.com/ballen[/url]

> "Brock Allen" wrote:
>

>>> ((DropDownList)(_grid.Items[0].FindControl("cboWorkflowID"))) I can
>>> think of, but to no avail. Is there a way?
>>>

>> You're close, but grab the _grid.Item[x].FindControl where x is the
>> row in the grid for the footer.
>>
>> -Brock
>> DevelopMentor
>> [url]http://staff.develop.com/ballen[/url]

> Brock,
>
> I tried (((DropDownList)(_grid.Items[9].FindControl("cboWorkflowID")))
> but it refuses to work since a count of 9 is returned when asking for
> _grid.Items.Count.
>
> Allen
>

[AlBruAn]

I'm aware collections are zero-based, that's why I said using 9 as in
Items[9] wouldn't work. The footer row is currently the 9th row in the grid,
so your suggestion of using
((DropDownList))(_grid.Items[9].FindControl("cboWorkflowID"))) doesn't work.
Any other idea?

Thanks!

Allen

"Brock Allen" wrote:

> Collections are zero-based, so access the position at Count - 1
>
> -Brock
> DevelopMentor
> [url]http://staff.develop.com/ballen[/url]
>
>
>

> > "Brock Allen" wrote:
> >

> >>> ((DropDownList)(_grid.Items[0].FindControl("cboWorkflowID"))) I can
> >>> think of, but to no avail. Is there a way?
> >>>
> >> You're close, but grab the _grid.Item[x].FindControl where x is the
> >> row in the grid for the footer.
> >>
> >> -Brock
> >> DevelopMentor
> >> [url]http://staff.develop.com/ballen[/url]

> > Brock,
> >
> > I tried (((DropDownList)(_grid.Items[9].FindControl("cboWorkflowID")))
> > but it refuses to work since a count of 9 is returned when asking for
> > _grid.Items.Count.
> >
> > Allen
> >

>
>
>
>

[AlBruAn]

I'm starting to confuse myself now...LOL. There are currently nine (0
through 8) rows of data, so that would make the footer row the tenth row.
Regardless, _grid.Items.Count returns a value of 9 with the last index being
8, which is to be expected; consequently,
((DropDownList)(_grid.Items[9].FindControl("cboWorkflowID"))) can never
successfully execute, much less return the SelectedValue for that
DropDownList control. So I'm still stuck without a way of finding what value
was selected in the control.

"AlBruAn" wrote:

> I'm aware collections are zero-based, that's why I said using 9 as in
> Items[9] wouldn't work. The footer row is currently the 9th row in the grid,
> so your suggestion of using
> ((DropDownList))(_grid.Items[9].FindControl("cboWorkflowID"))) doesn't work.
> Any other idea?
>
> Thanks!
>
> Allen
>
> "Brock Allen" wrote:
>

> > Collections are zero-based, so access the position at Count - 1
> >
> > -Brock
> > DevelopMentor
> > [url]http://staff.develop.com/ballen[/url]
> >
> >
> >

> > > "Brock Allen" wrote:
> > >
> > >>> ((DropDownList)(_grid.Items[0].FindControl("cboWorkflowID"))) I can
> > >>> think of, but to no avail. Is there a way?
> > >>>
> > >> You're close, but grab the _grid.Item[x].FindControl where x is the
> > >> row in the grid for the footer.
> > >>
> > >> -Brock
> > >> DevelopMentor
> > >> [url]http://staff.develop.com/ballen[/url]
> > > Brock,
> > >
> > > I tried (((DropDownList)(_grid.Items[9].FindControl("cboWorkflowID")))
> > > but it refuses to work since a count of 9 is returned when asking for
> > > _grid.Items.Count.
> > >
> > > Allen
> > >

> >
> >
> >
> >

[Brock Allen]

You know what, I think we're mixing topics here. Do you have a DataGrid or
a DataList? A DataGrid doesn't have a FooterTemplate. If it's a DataList
then you just directly use the controls you've declared in there.

-Brock
DevelopMentor
[url]http://staff.develop.com/ballen[/url]

> I'm starting to confuse myself now...LOL. There are currently nine (0
> through 8) rows of data, so that would make the footer row the tenth
> row. Regardless, _grid.Items.Count returns a value of 9 with the last
> index being 8, which is to be expected; consequently,
> ((DropDownList)(_grid.Items[9].FindControl("cboWorkflowID"))) can
> never successfully execute, much less return the SelectedValue for
> that DropDownList control. So I'm still stuck without a way of
> finding what value was selected in the control.
>
> "AlBruAn" wrote:
>

>> I'm aware collections are zero-based, that's why I said using 9 as in
>> Items[9] wouldn't work. The footer row is currently the 9th row in
>> the grid, so your suggestion of using
>> ((DropDownList))(_grid.Items[9].FindControl("cboWorkflowID")))
>> doesn't work. Any other idea?
>>
>> Thanks!
>>
>> Allen
>>
>> "Brock Allen" wrote:
>>

>>> Collections are zero-based, so access the position at Count - 1
>>>
>>> -Brock
>>> DevelopMentor
>>> [url]http://staff.develop.com/ballen[/url]
>>>> "Brock Allen" wrote:
>>>>
>>>>>> ((DropDownList)(_grid.Items[0].FindControl("cboWorkflowID"))) I
>>>>>> can think of, but to no avail. Is there a way?
>>>>>>
>>>>> You're close, but grab the _grid.Item[x].FindControl where x is
>>>>> the row in the grid for the footer.
>>>>>
>>>>> -Brock
>>>>> DevelopMentor
>>>>> [url]http://staff.develop.com/ballen[/url]
>>>> Brock,
>>>>
>>>> I tried
>>>> (((DropDownList)(_grid.Items[9].FindControl("cboWorkflowID"))) but
>>>> it refuses to work since a count of 9 is returned when asking for
>>>> _grid.Items.Count.
>>>>
>>>> Allen
>>>>