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How to: Manipulate a Table's Columns through the Columns Property

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 creates a new table and then uses the Add method to add columns to the table's Columns collection.

			Dim tbl As New Table()
			Dim columnsToAdd As Integer = 4
			For x As Integer = 0 To columnsToAdd - 1
				tbl.Columns.Add(New TableColumn())
			Next x

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.

Note Note

The TableColumnCollection collection uses standard zero-based indexing.

			tbl.Columns.Insert(0, New TableColumn())

The following example accesses some arbitrary properties on columns in the TableColumnCollection collection, referring to particular columns by index.

			tbl.Columns(0).Width = New GridLength(20)
			tbl.Columns(1).Background = Brushes.AliceBlue
			tbl.Columns(2).Width = New GridLength(20)
			tbl.Columns(3).Background = Brushes.AliceBlue

The following example gets the number of columns currently hosted by the table.

			Dim columns As Integer = tbl.Columns.Count

The following example removes a particular column by reference.

			tbl.Columns.Remove(tbl.Columns(3))

The following example removes a particular column by index.

			tbl.Columns.RemoveAt(2)

The following example removes all columns from the table's columns collection.

			tbl.Columns.Clear()
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