usercontrol

[Maarten]

hi all

why should I use a usercontrol for ?
does it have some advantages?

thanks Maarten

[J French]

On Sat, 6 Nov 2004 16:05:50 +0100, "Maarten" <gu******@hotmail.com>
wrote:

hi all

why should I use a usercontrol for ?
Most things graphical, and some things non graphical
does it have some advantages?
Yes
thanks Maarten

Best try writing one, they are very easy.

[Steve Gerrard]

"Maarten" <gu******@hotmail.com> wrote in message
news:41**********************@news.skynet.be...
| hi all
|
| why should I use a usercontrol for ?
| does it have some advantages?
|
| thanks Maarten
|

A good way to start is to make a user control that contains one regular
control, so you can define some special behavior for it. Try this in a
new project:

1. Click on Project menu, Add User Control
2. On the user control, place one text box.
3. Add the code below. Close the user control window.
4. On Form1, place 2 or 3 of your new controls. Your control will appear
last on the toolbox, and you can place them just like other controls.
5. Run the program, and type stuff in the text boxes.
6. Note that you can now use this control as many times as you like on
different forms, without having to duplicate the color change code.

' User control code

Private Sub Text1_Change()
If InStr(1, Text1.Text, "red", vbTextCompare) Then
Text1.ForeColor = vbRed
Else
Text1.ForeColor = vbBlack
End If
End Sub

Private Sub UserControl_Resize()
With UserControl
Text1.Move .ScaleLeft, .ScaleTop, .ScaleWidth, .ScaleHeight
End With
End Sub

[mayayana]

I think of a UC as a class with window properties.
It's a great way to encapsulate API functions for
another control or to use owner-drawn windows.
Owner drawn windows are a pain in VB because
they don't show up in the IDE. But if you associate an
owner-drawn window with a UC you can tie things
like Top, Left, Width, Height to the UC for easy
GUI management of the window and you can also
place the window on a form at "design time".
So you might say it's a blank slate with all the
conveniences of a VB component (visibility in
the IDE, hWnd, dimensions, etc.).
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Maarten <gu******@hotmail.com> wrote in message
news:41**********************@news.skynet.be...

hi all

why should I use a usercontrol for ?
does it have some advantages?

thanks Maarten