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)

'Declaration
Public ReadOnly Property ExtendedProperties As PropertyCollection
'Usage
Dim instance As DataColumn
Dim value As PropertyCollection

value = instance.ExtendedProperties

/** @property */
public PropertyCollection get_ExtendedProperties ()

public function get ExtendedProperties () : PropertyCollection

Not applicable.

Property Value

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

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0

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