> Hi.
>
> (For information, i'm working in VB.NET)
> I have a datagrid on my page.
> On its creation, I add a dropdownlist in each cell, with a different ID
> each time.
> This works fine.
>
> But now, I can't access on the selected values of those dynamic
> dropdownlists.
> I tried this :
> CType(Me.FindControl("ddlDay" & i), DropDownList).SelectedValue
> But this generates me an error that says that this control doesn't
> exists...
> What am I doing wrong ???
>
> Thanks for your help....

"Daniel TIZON" <daniel_tizon_pasdes***@hotmail.com> wrote in
news:ejd08TlAGHA.4080@TK2MSFTNGP14.phx.gbl:

> Hi,
> Your problem comes from the FindControl method wich is not recursive.
> The best method shoud be to create a common eventHandler for all yours
> dropdownlists, for example : DropDownLists_SelectedIndexChanged
> and add the handler dynamicaly, with the following code when you add
> the dropdownlists in the cells
> code :
> dim myDropdown as new DropDownList()
> myDropdown.ID=ddlDay" & i
> e.item.cells(0).add(myDropdown)
> AddHandler myDropdown.SelectedIndexChanged, AddressOf
> DropDownLists_SelectedIndexChanged
>
> If the dropdownlist where added in a template column, it whould be
> easier, the association whould be made declaratively with the
> OnSelectedIndexChanged attribute.
>

> "Daniel TIZON" <daniel_tizon_pasdes***@hotmail.com> wrote in
> news:ejd08TlAGHA.4080@TK2MSFTNGP14.phx.gbl:
>
>> Hi,
>> Your problem comes from the FindControl method wich is not recursive.
>> The best method shoud be to create a common eventHandler for all yours
>> dropdownlists, for example : DropDownLists_SelectedIndexChanged
>> and add the handler dynamicaly, with the following code when you add
>> the dropdownlists in the cells
>> code :
>> dim myDropdown as new DropDownList()
>> myDropdown.ID=ddlDay" & i
>> e.item.cells(0).add(myDropdown)
>> AddHandler myDropdown.SelectedIndexChanged, AddressOf
>> DropDownLists_SelectedIndexChanged
>>
>> If the dropdownlist where added in a template column, it whould be
>> easier, the association whould be made declaratively with the
>> OnSelectedIndexChanged attribute.
>>
>
> Thanks for your answer.
> But your solution is only to add an event on the dynamic dropdownlists,
> isn't it ?
> My problem is that I have a datagrid with one column for each day of the
> selected month, and a dropdownlist in each column. And when I click on
> the submit button, I want to recover the selected value from each
> dropdownlist. And I think your solution won't help me for this.
> Do you have another one ??
> Thanks in advance.

"Daniel TIZON" <daniel_tizon_pasdes***@hotmail.com> wrote in
news:e$IKjJPBGHA.1312@TK2MSFTNGP09.phx.gbl:

> Hi,
> Sorry to have misunderstood your scenario.
> You need to get all the references of all yours Dropdownlist to tests
> their selected value when you click on a button of the page.
> All the references of the dropdownlist are reachable in the
> treecontrols of the page. You can browse recusrsively the controls ins
> the page or in the DataGrid and play with the controls of type
> DropDownlist. This must work, but is not the most effective.
> Another solution is to create your own collection of DropdDownLists :
> - declare a member variable of type ArrayList in the class of your
> Page - create the instance in the Page_Init
> - In the event where you creates the Dropdownlist controls, probably
> in DataGrid1_ItemCreated, add the ComboBox to the collection of the
> ArrayList - In the Click EventHandler of the button, use a For each
> loop to play with the list of your dropdownlists.
>
> Hope this helps,
>