Open a combobox

[elven byte]

Hello.

I want a combo to open automatically when it gets the focus. I've been
looking for it on the Internet, but I've just found with the API.

It'd be OK, but it uses combo.hwnd, and I don't know which is the
equivalent to hwnd in VB.NET.

Can anyone help me in how to open the combobox, or how to work with the
hwnd for it?

Thanx in advance.

David

 

[Herfried K. Wagner [MVP]]

I want a combo to open automatically when it gets the focus. I've been
looking for it on the Internet, but I've just found with the API.

\\\
Me.ComboBox1.DroppedDown = True
///

 

[elven byte]

It doesn't work. DroppedDown is not a member of the combobox, vb says.

 

[Cor Ligthert]

elven,

You don't need a API for that.

Private Sub ComboBox1_MouseEnter(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles ComboBox1.MouseEnter
ComboBox1.DropDownStyle = ComboBoxStyle.Simple
Me.ComboBox1.Size = New System.Drawing.Size(160, 152)
'size as you wish
End Sub
Private Sub ComboBox1_MouseLeave(ByVal sender As Object, ByVal e _
As System.EventArgs) Handles ComboBox1.MouseLeave
ComboBox1.DropDownStyle = ComboBoxStyle.DropDown
End Sub
///
There is as well a
Combobox dropeddown is true and false.
In my opinion is the problem with that one, that mouseleave is than not
fired.
Although with the method above it is as well not as good as I would
wish.

I hope this helps?

Cor

 

[Herfried K. Wagner [MVP]]

It doesn't work. DroppedDown is not a member of the combobox, vb says.

'DroppedDown' /is/ a member of the Windows Forms combobox control! Are you
talking about Windows Forms or Web Forms?

 

[elven byte]

Well, there's something I haven't said before. This is a combobox for a
PocketPC, perhaps that's the reason it hasn't got the DroppedDown method...

 

[elven byte]

I've got the problem that I can not set the combostyle to simple, because
it's a program for PocketPC.

 

[Cor Ligthert]

Are you using the

..Net Compact framework because on this page is written that it is supported
for that

http://msdn.microsoft.com/library/d...ndowsformscomboboxclassdropdownstyletopic.asp
Requirements
Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows
2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003
family, .NET Compact Framework

Cor

 

[Herfried K. Wagner [MVP]]

Well, there's something I haven't said before. This is a combobox for a
PocketPC, perhaps that's the reason it hasn't got the DroppedDown
method...

You are right, this property is, according to the documentation, not
supported by the .NET Compact Framework.