HierarchicalDataSourceConverter Class
Assembly: System.Design (in system.design.dll)
The HierarchicalDataSourceConverter class provides methods that can be used to retrieve a list of the hierarchical data sources that are accessible to the current design-time component.
The HierarchicalDataSourceConverter type converter is used by Microsoft Visual Studio to provide the values that appear in the list of data sources in the Properties window.
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| You should never access a type converter directly. Instead, call the appropriate converter by using the TypeDescriptor class. For more information, see the examples in TypeConverter. |
For more information about type converters, see the TypeConverter base class and How to: Implement a Type Converter.
The following code example demonstrates how to associate a HierarchicalDataSourceConverter with a hierarchical data source property that is contained within a custom control.
[ ToolboxData("<{0}:MyCustomHierarchicalControl runat=server> </{0}:MyCustomHierarchicalControl>") ] public class MyCustomHierarchicalControl : TreeView { private object _dataSource; [TypeConverter(typeof(HierarchicalDataSourceConverter))] public override object DataSource { get { return _dataSource; } set { if (value != null) { ValidateDataSource(value); } _dataSource = value; OnDataPropertyChanged(); } } // Define rest of custom control implementation. // ... }
- SecurityPermission for operating with unmanaged code. Associated enumeration: UnmanagedCode
System.ComponentModel.TypeConverter
System.Web.UI.Design.DataSourceConverter
System.Web.UI.Design.HierarchicalDataSourceConverter
Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.
Caution