ExtendedProperties Property

DataColumn.ExtendedProperties Property

 

Gets the collection of custom user information associated with a DataColumn.

Namespace:   System.Data
Assembly:  System.Data (in System.Data.dll)

<BrowsableAttribute(False)>
Public ReadOnly Property ExtendedProperties As PropertyCollection

Property Value

Type: System.Data.PropertyCollection

A PropertyCollection of custom information.

The ExtendedProperties property lets you store custom information with the object. For example, you may store a time when the data should be refreshed.

Extended properties must be of type String. Properties that are not of type String are not persisted when the DataColumn is written as XML.

The following example adds a custom property to the PropertyCollection returned by the ExtendedProperties property. The second example retrieves the custom property.

 Private Sub SetProperty(column As DataColumn)
     column.ExtendedProperties.Add("TimeStamp", DateTime.Now)
 End Sub    

 Private Sub GetProperty(column As DataColumn)
     Console.WriteLine(column.ExtendedProperties("TimeStamp").ToString())
End Sub

.NET Framework
Available since 1.1
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