SelectionLength Property

TextBox.SelectionLength Property

 

Gets or sets a value indicating the number of characters in the current selection in the text box.

Namespace:   System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)

public int SelectionLength { get; set; }

Property Value

Type: System.Int32

The number of characters in the current selection in the text box. The default is 0.

Exception Condition
ArgumentOutOfRangeException

SelectionLength is set to a negative value.

Getting this property returns the number of characters in the current selection. Setting this property adjusts the length of the current selection to the specified value, keeping the beginning of the selection fixed.

In general, when the specified selection length causes the selection to end in an invalid position (for example, between a carriage return and a new-line character, or inside a tag), the selection length automatically adjusts so that the resulting selection starts and ends in valid positions.

.NET Framework
Available since 3.0
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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