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How do I highlight the background of certain tags in HTML or XML dynamically at runtime?

 

It is possible to highlight the background of certain tags in HTML or XML using the EditControl's ability to add runtime configuration. We have considered the following tags as an example here - . The background will be highlighted with a yellow color just like in the ASP.NET files (aspx/ascx). Please refer to the following code snippets for information in this regard.

C#

this.editControl1.ApplyConfiguration(KnownLanguages.HTML);

// Create a format and set its attributes

ISnippetFormat formatMethod = this.editControl1.Language.Add("CodeBehind");

formatMethod.FontColor = Color.Black;

formatMethod.Font = new Font("Courier New",10);

formatMethod.BackColor = Color.Yellow;

// Create a lexem that belongs to this format

ConfigLexem configLex = new ConfigLexem("<%@", "%>", FormatType.Custom, false);

configLex.IsBeginRegex = false;

configLex.IsEndRegex = false;

configLex.ContinueBlock = ".+";

configLex.IsContinueRegex = true;

configLex.FormatName = "CodeBehind";

this.editControl1.Language.Splits.Add("<%@");

this.editControl1.Language.Splits.Add("%>");

// Add it to the current language's lexems collection

this.editControl1.Language.Lexems.Add(configLex);

this.editControl1.Language.ResetCaches();

VB

Me.editControl1.ApplyConfiguration(KnownLanguages.HTML)

' Create a format and set its attributes

Dim formatMethod As ISnippetFormat = Me.editControl1.Language.Add("CodeBehind")

formatMethod.FontColor = Color.Black

formatMethod.Font = New Font("Courier New", 10)

formatMethod.BackColor = Color.Yellow

' Create a lexem that belongs to this format

Dim configLex As New ConfigLexem("<%@", "%>", FormatType.Custom, False)

configLex.IsBeginRegex = False

configLex.IsEndRegex = False

configLex.ContinueBlock = ".+"

configLex.IsContinueRegex = True

configLex.FormatName = "CodeBehind"

Me.editControl1.Language.Splits.Add("<%@")

Me.editControl1.Language.Splits.Add("%>")

' Add it to the current language's lexems collection

Me.editControl1.Language.Lexems.Add(configLex)

Me.editControl1.Language.ResetCaches()

The test application attached below illustrates how this can be done.

Article ID: Published Date: Last Revised Date: Platform: Control:
379 04/30/2011 07/10/2014 WinForms EditControl
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