Gets or sets the distance to indent each child tree node level.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The assigned value is less than 0 (see Remarks).
The assigned value is greater than 32,000.
Setting this property to a value of -1 does not throw an exception if the value has not yet been changed from its default. This is because the control uses a value of -1 as an internal default before the control handle has been created. This internal default value causes the wrapped control to return its own default value of 19.
The following code example illustrates a customized TreeView. By inheriting the TreeView class, this custom version has all the functionality of a typical TreeView. Changing various property values in the constructor provides a unique appearance. Because the ShowPlusMinus property is set to false, the customized control also overrides the OnAfterSelect method so that nodes can be expanded and collapsed when they are clicked.
A control that is customized in this way can be used throughout an organization, making it easy to provide a consistent interface without requiring the control properties to be specified in each individual project.