Gets or sets the number of characters selected in the text box.
Syntax
[System.ComponentModel.Browsable(false)]
public virtual int SelectionLength { set; get; }
Value
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Remarks
You can use this property to determine if any characters are currently selected in the text box control before performing operations on the selected text. When the value of the TextBoxBase.SelectionLength property is set to a value that is larger than the number of characters within the text of the control, the value of the TextBoxBase.SelectionLength property is set to the entire length of text within the control minus the value of the TextBoxBase.SelectionStart property (if any value is specified for the TextBoxBase.SelectionStart property).
You can programmatically move the caret within the text box by setting the TextBoxBase.SelectionStart to the position within the text box where you want the caret to move to and set the TextBoxBase.SelectionLength property to a value of zero (0). The text box must have focus in order for the caret to be moved.
Requirements
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0