DataSet.ExtendedProperties Property
Gets the collection of customized user information associated with the DataSet.
[Visual Basic] Public ReadOnly Property ExtendedProperties As PropertyCollection [C#] public PropertyCollection ExtendedProperties {get;} [C++] public: __property PropertyCollection* get_ExtendedProperties(); [JScript] public function get ExtendedProperties() : PropertyCollection;
Property Value
A PropertyCollection with all custom user information.
Remarks
The ExtendedProperties property enables you to store custom information with the DataSet. For example, you might store a time when the data should be refreshed.
Extended properties must be of type String if you want them persisted when the DataSet is written as XML.
Example
[Visual Basic, C#, C++] The following example adds a custom property to the PropertyCollection returned by the ExtendedProperties property. The second example retrieves the custom property.
[Visual Basic] Private Sub SetProperty(myDataSet As DataSet) myDataSet.ExtendedProperties.Add("TimeStamp", DateTime.Now) End Sub Private Sub GetProperty(myDataSet As DataSet) Console.WriteLine(myDataSet.ExtendedProperties("TimeStamp").ToString()) End Sub [C#] private void SetProperty(DataSet myDataSet){ myDataSet.ExtendedProperties.Add("TimeStamp", DateTime.Now); } private void GetProperty(DataSet myDataSet){ Console.WriteLine(myDataSet.ExtendedProperties["TimeStamp"].ToString()); } [C++] private: void SetProperty(DataSet* myDataSet){ myDataSet->ExtendedProperties->Add(S"TimeStamp",__box(DateTime::Now)); } void GetProperty(DataSet* myDataSet){ Console::WriteLine(myDataSet->ExtendedProperties->Item[S"TimeStamp"]); }
[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button
in the upper-left corner of the page.
Requirements
Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, .NET Compact Framework