Custom Controls - Custom Panel with Opacity
Categories: Panels, Skinnable and Inherited Controls
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Tags: Developers, HTML, XSLT, 2. Intermediate, 3. Advanced, Customization, v6.4 and Later
Revision:
1
Posted:
10/April/2010
Updated:
23/July/2010
Status:
Publish
Types: Code
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This article will have a few sections added to it soon, based on the following article type skeleton: CodeSampleThis article is being worked on by Gizmox. 
OverviewThis is an implementation of a Custom Panel control, OpacityPanel, as a Visual WebGui 6.4 Custom Control that has adjustable Opacity (transparency) setting. The control also has adjustable setting for if you want to apply the Opacity on child controls or not. To use simply add the OpacityPanel Panel control on a Form and adjust the Opacity and OpacityOnChildren properties to your liking. The attached demo application has code for C# and VB.NET in VS2005 and VS2008. The application is written for Visual WebGui version 6.4.0Beta2 and does not work for earlier versions.
Samples of useVB.NET Code
Public Property Opacity() As OpacityValue
Get
Return mobjOpacity
End Get
Set(ByVal value As OpacityValue)
mobjOpacity = value
End Set
End Property
public OpacityValue Opacity
{
get
{
return mobjOpacity;
}
set
{
mobjOpacity = value;
}
}
 Opacity Panel Control Demo application
Tips and TricksTwo extra public properties are defined on the custom OpacityPanel control. The use of the Opacity property deserves special attention, as it is declared as an OpacityValue type, which is an internal type of Visual WebGui. This type of usage is a great helper when it comes to the XSLT, as the value returned within the XSLT will actually be a browser dependent style setting for Opacity (the syntax is different betwen IE and FF for instance), so we do not need any browser type specific resources when using this method. SDK Version highlightsThe demo application is written against Visual WebGui version 6.4.0Beta2 and will not work on a pre 6.4 versions.
About the author
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