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How to comment out a section of code in WinForms SyntaxEditor (EditControl)?

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

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It is possible to comment out a section of code by inserting the "//" (using C# as an example) at the beginning of each line in that particular section. The interop call LockWindowUpdate can be used to pause and resume painting while the lines are being commented.

C#

// Lock Painting
LockWindowUpdate(this.editControl1.Handle.ToInt64());
for (int i=1; i<=this.editControl1.PhysicalLineCount; i++)
{
   this.editControl1.InsertText(i,1,"// ");
}
// Resume Painting
LockWindowUpdate(0);

 

VB

' Lock Painting
LockWindowUpdate(Me.editControl1.Handle)
Dim i As Integer
For i = 1 To Me.editControl1.PhysicalLineCount
   Me.editControl1.InsertText(i, 1, "// ")
Next i
' Resume Painting
LockWindowUpdate(IntPtr.Zero)

 

 

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