GridColumnStylesCollection.Contains Method (PropertyDescriptor)

Gets a value indicating whether the GridColumnStylesCollection contains a DataGridColumnStyle associated with the specified PropertyDescriptor.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public bool Contains(
	PropertyDescriptor propertyDescriptor


Type: System.ComponentModel.PropertyDescriptor

The PropertyDescriptor associated with the desired DataGridColumnStyle.

Return Value

Type: System.Boolean
true if the collection contains the DataGridColumnStyle; otherwise, false.

To get a PropertyDescriptorCollection, use the GetItemProperties method of the BindingManagerBase class. Pass the MappingName of the DataGridColumnStyle to the Item property of the PropertyDescriptorCollection to return the PropertyDescriptor for a specific column.

Use the Contains method to determine if a particular DataGridColumnStyle exists before invoking the Remove method to remove the item. If you need to know the index of a particular DataGridColumnStyle, use the IndexOf method.

The following code example uses the Contains method to determine if a GridColumnStylesCollection contains a DataGridColumnStyle associated with a specified PropertyDescriptor.

Private Sub ContainsThisDataCol()
   Dim myPropertyDescriptor As PropertyDescriptor
   Dim myPropertyDescriptorCollection As PropertyDescriptorCOllection
   myPropertyDescriptorCollection = _
   me.BindingContext(DataSet1, "Customers").GetItemProperties()
   myPropertyDescriptor = myPropertyDescriptorCollection("FirstName")

   Dim trueOrFalse As Boolean 
   ' Set the variable to a known column in the grid's DataTable.
   trueOrFalse = DataGrid1.TableStyles(0).GridColumnStyles. _
End Sub

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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.

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