SOLVED: MarkupContext.SetHandler method in VB.net
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Topic: SOLVED: MarkupContext.SetHandler method in VB.net
Posted By: gibrael
Subject: SOLVED: MarkupContext.SetHandler method in VB.net
Date Posted: 19 April 2012 at 6:31am
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Hi, How would we use the Sethandler method in VB.net? In VB6, it's simply Dim markup as MarkupLabel markup.MarkupContext.SetHandler Me How do we do this in .NET? It's always throwing an InvalidCastException. Thanks.
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Replies:
Posted By: SuperMario
Date Posted: 19 April 2012 at 8:59am
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I don't have a VB.Net sample handy, but here is some C# code. I assume you are wanting SetHandler to use events in Markup: /* Your class needs to implement the IDispatch interface. You need to add "using System.Runtime.InteropServices;" at the top of your file and "[ComVisible(true), ClassInterface(ClassInterfaceType.
AutoDispatch)]" above your class declaration. Please note that you need to set the event handler in Markup, i.e. <Hyperlink Click='Hyperlink_Click'> */ //Need to include this using System.Runtime.InteropServices; namespace MarkupSample { public Form1() { InitializeComponent(); } //Need this line [ComVisible(true), ClassInterface(ClassInterfaceType.AutoDispatch)] public partial class Form1 : Form { Label1.Caption = "<TextBlock>Click <Hyperlink Tag='This!' Click='Hyperlink_Click'>this</Hyperlink> or <Hyperlink Tag='That!' Click='Hyperlink_Click'>that</Hyperlink> link. (Shows how to handle Markup Events)</TextBlock>"; Label1.MarkupContext.SetHandler(this); } //Then need this [ComVisible(true)] public void Hyperlink_Click(XtremeMarkup.MarkupObject Sender, XtremeMarkup.MarkupRoutedEventArgs Args) { try { XtremeMarkup.MarkupHyperlink Element; Element = (XtremeMarkup.MarkupHyperlink)Sender; MessageBox.Show("Clicked: " + Element.Tag); } catch { MessageBox.Show("Clicked"); } } }
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Posted By: gibrael
Date Posted: 19 April 2012 at 10:13am
 Wow!Thanks a lot! I've been wracking my brains whole afternoon looking for a solution! This worked perfectly! Thanks again! ------------- -- Codejock Xtreme Suite Pro 15.2 VisualStudio 2010 Windows 7 |