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DataTable.ExtendedProperties Property

Gets the collection of customized user information.

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

[BrowsableAttribute(false)]
public PropertyCollection ExtendedProperties { get; }

Property Value

Type: System.Data.PropertyCollection
A PropertyCollection that contains custom user information.

Use the ExtendedProperties to add custom information to a DataTable. Add information with the Add method. Retrieve information with the Item method.

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

The following example adds a timestamp value to the DataTable through the ExtendedProperties property.

private void GetAndSetExtendedProperties(DataTable myTable){
   // Add an item to the collection.
   myTable.ExtendedProperties.Add("TimeStamp", DateTime.Now);
   // Print the item.
   Console.WriteLine(myTable.ExtendedProperties["TimeStamp"]);
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0
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