Clears all items from the collection.
Assembly: PresentationFramework (in PresentationFramework.dll)
This example demonstrates some of the more common operations that can be performed on a table's columns through the Columns property.
The following example inserts a new TableColumn. The new column is inserted at index position 0, making it the new first column in the table.
The TableColumnCollection collection uses standard zero-based indexing.
The following example accesses some arbitrary properties on columns in the TableColumnCollection collection, referring to particular columns by index.
The following example gets the number of columns currently hosted by the table.
The following example removes a particular column by reference.
The following example removes a particular column by index.
The following example removes all columns from the table's columns collection.
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)