Selects all text in the text box.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
This method enables you to select all text within the control. You can use this method in conjunction with the Cut method, which requires text to be selected in the control, to cut the entire contents of the control and paste them into the Clipboard.
The following code example uses TextBox, a derived class, to determine if any text is selected in the control. If no text is selected, a call is made to the method before copying the contents of the control to the Clipboard. This example requires that a TextBox has been created named textBox1.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.