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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
)

Parameters

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. _
   Contains(myPropertyDescriptor)
   Console.WriteLine(trueOrFalse)
End Sub

.NET Framework

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

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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