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How to select again the previously selected text after changing its case in WinForms SyntaxEditor (EditControl)?
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Select the text
The SetSelection() method is used to select the text in EditControl. We need to invoke SetSelection() method after converting the case of the SelectedText.
C#
//Selecting the text after converting to lowercase string lowerCaseStr; lowerCaseStr = this.editControl1.SelectedText.ToLower(); this.editControl1.SelectedText = lowerCaseStr; this.editControl1.SetSelection(col - lowerCaseStr.Length, this.editControl1.CurrentLine, col, this.editControl1.CurrentLine); //Selecting the text after converting to uppercase string upperCaseStr; upperCaseStr = this.editControl1.SelectedText.ToUpper(); this.editControl1.SelectedText = upperCaseStr; this.editControl1.SetSelection(col-upperCaseStr.Length, this.editControl1.CurrentLine, col, this.editControl1.CurrentLine);
VB
`Selecting the text after converting to lowercase Dim lowerCaseStr As String lowerCaseStr = Me.editControl1.SelectedText.ToLower() Me.editControl1.SelectedText = lowerCaseStr Me.editControl1.SetSelection(col - lowerCaseStr.Length, Me.editControl1.CurrentLine, col, Me.editControl1.CurrentLine) `Selecting the text after converting to uppercase Dim upperCaseStr As String upperCaseStr = Me.editControl1.SelectedText.ToUpper() Me.editControl1.SelectedText = upperCaseStr Me.editControl1.SetSelection(col-upperCaseStr.Length, Me.editControl1.CurrentLine, col, Me.editControl1.CurrentLine)