Comments on: Creating gradient background with transparent labels in .NET Compact Framework

By: RAHUL

RAHUL — Fri, 29 Jul 2011 12:44:33 +0000

Instead form i want to place transparent label on gradientfill panel.Panel is gradient filled using paintbackground event but label does not dislay any text on panel.

By: Per Ola Sæther

Per Ola Sæther — Tue, 26 Apr 2011 13:25:34 +0000

Arathi,
I’m not sure where you have gone wrong. The code example above works on .NET Compact Framework. I have not done any Vb.net coding so I am not sure if you can use this example directly in VB.

If I understand you correct you get the error when you are using the visual designer. Try to add the TransparentLabel manually without using the visual designer. You can also have a look at an article I wrote about how to code your user controls so that they can be used by the visual designer: http://breathingtech.com/2009/using-user-controls-with-external-dll-references-in-visual-studio-designer/

By: Arathi

Arathi — Wed, 20 Apr 2011 13:17:12 +0000

Hi,
I am facing problem while creating the transparent labels. I am doing this in Vb.net.
I followed the instructions till adding the TransparentLabel.vb and couldn’t go further in improving the looks of TransparentLabel. After that, i built the application, and could get the Transparent label in the toolbox but while putting the control on the form, it gives an big error message saying ‘Failed to create component ‘TransparentLabel’. The error message follows:
‘System.MissingMethodException: Constructor on typw ‘GRADIENT.TransparentLabel’ not found.
at System.RuntimeType.CreateInstanceImp(BindingFlags bindingAttr, Binder binder,Object[] args,CultureInfo culture,Object[] activationAttributes)
….
….

Please let me know where i have gone wrong.

By: Per Ola Sæther

Per Ola Sæther — Thu, 24 Mar 2011 16:20:53 +0000

Hi Ajit Nagar,
The Coredll.dll is a part of Windows CE/Mobile and is in the ROM. You will not find Coredll.dll on your disk.

You will typically get this error if you try to run device code on desktop.

By: Ajit Nagar

Ajit Nagar — Wed, 23 Mar 2011 05:47:23 +0000

hello,
This is really nice one.
but i got the error of importing the dll named coredll in win32helper class.
so how could you find this dll?

By: Per Ola Sæther

Per Ola Sæther — Tue, 15 Feb 2011 15:55:31 +0000

You are welcome!

By: mzoy

mzoy — Tue, 15 Feb 2011 03:38:55 +0000

Thanks!

By: Per Ola Sæther

Per Ola Sæther — Sun, 17 Oct 2010 14:10:49 +0000

Hi Alaa Ezzat,

Thanks for your comment and I like your example on using reflection to Invoke the parent OnPaintBackground.

By: Alaa Ezzat

Alaa Ezzat — Sat, 16 Oct 2010 21:51:08 +0000

Very Nice Sir , Helps A Lot

and let me add , that if you are packadging your code and don’t want the user to have to implement the IPaintControl you can use reflection , a bit slower , but works in default scenario with no tweaks , like :

protected override void OnPaintBackground(PaintEventArgs e)
{
System.Reflection.MethodInfo method = Parent.GetType().GetMethod(“OnPaintBackground”, BindingFlags.Instance | BindingFlags.NonPublic);

method.Invoke(Parent,new object[]{ e});

}

By: Creating gradient buttons in .NET Compact Framework

Creating gradient buttons in .NET Compact Framework — Wed, 01 Sep 2010 21:47:02 +0000

[...] have earlier written a post about Creating gradient background with transparent labels in .NET Compact Framework and the approach when creating a gradient button is quite similar. As a base for drawing gradient I [...]