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How to highlight the background of certain tags in HTML or XML dynamically at runtime in WinForms SyntaxEditor (EditControl)?

Platform: WinForms |
Control: EditControl |
Published Date: April 30, 2011 |
Last Revised Date: December 12, 2019

Background settings

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()

 

Reference link: https://help.syncfusion.com/windowsforms/syntax-editor/syntax-highlighting

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