ComboBox.Select Method (Int32, Int32)
Selects a range of text in the editable portion of the ComboBox.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The start is less than zero.
start plus length is less than zero.
If you want to set the start position to the first character in the control's text, set the start parameter to zero. You can use this method to select a substring of text, such as when searching through the text of the control and replacing information.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.