Hello,

Is it possible to disable the ComboBox DropDown ListBox control from the
OnDropDown override method?

I'm trying to use a ListView to popup, instead of a ListBox.

So far, I've been able to "disable" the dropdown by changing the focus
to the Listview

protected override void OnDropDown(System.EventArgs e) {
_popup.Show();
_popup.Focus();
base.OnDropDown(e);
}

However, the dropdown ListBox briefly flashes in front of the ListView.

Please let me know if you have a better solution. If there is a way to
set the dropdown box to a ListView control, that would be even better.

Thank you,
Brian Takita

Are you creating the ListView in response to the DropDown event?
Is so, try creating it with the dropdown listbox as a parent.
You can get the HWND of it by using GetComboBoxInfo

Then override ListView.CreateParams and sepecify that
HWND as a parent

/claes


"Brian Takita" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hello,
>
> Is it possible to disable the ComboBox DropDown ListBox control from the
> OnDropDown override method?
>
> I'm trying to use a ListView to popup, instead of a ListBox.
>
> So far, I've been able to "disable" the dropdown by changing the focus
> to the Listview
>
> protected override void OnDropDown(System.EventArgs e) {
> _popup.Show();
> _popup.Focus();
> base.OnDropDown(e);
> }
>
> However, the dropdown ListBox briefly flashes in front of the ListView.
>
> Please let me know if you have a better solution. If there is a way to
> set the dropdown box to a ListView control, that would be even better.
>
> Thank you,
> Brian Takita
>

I can get the HWND by using the
Handle property.

How do you get access to the dropdown ListBox in the ComboBox?

Claes Bergefall wrote:
> Are you creating the ListView in response to the DropDown event?
> Is so, try creating it with the dropdown listbox as a parent.
> You can get the HWND of it by using GetComboBoxInfo
>
> Then override ListView.CreateParams and sepecify that
> HWND as a parent
>
> /claes
>
>
> "Brian Takita" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
>
>>Hello,
>>
>>Is it possible to disable the ComboBox DropDown ListBox control from the
>>OnDropDown override method?
>>
>>I'm trying to use a ListView to popup, instead of a ListBox.
>>
>>So far, I've been able to "disable" the dropdown by changing the focus
>>to the Listview
>>
>>protected override void OnDropDown(System.EventArgs e) {
>>_popup.Show();
>>_popup.Focus();
>>base.OnDropDown(e);
>>}
>>
>>However, the dropdown ListBox briefly flashes in front of the ListView.
>>
>>Please let me know if you have a better solution. If there is a way to
>>set the dropdown box to a ListView control, that would be even better.
>>
>>Thank you,
>>Brian Takita
>>
>
>
>

"Brian Takita" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> I can get the HWND by using the
> Handle property.

No. That will give you the HWND of the combobox itself
Read this to understand the parts of a combobox:
http://support.microsoft.com/?kbid=65881

>
> How do you get access to the dropdown ListBox in the ComboBox?
>

As I told you; GetComboBoxInfo will give you its HWND.
You'll have to use P/Invoke since it's a Win32 function

> Claes Bergefall wrote:
> > Are you creating the ListView in response to the DropDown event?
> > Is so, try creating it with the dropdown listbox as a parent.
> > You can get the HWND of it by using GetComboBoxInfo
> >
> > Then override ListView.CreateParams and sepecify that
> > HWND as a parent
> >
> > /claes
> >
> >