This class provides shared helper methods that the design-time host
(IDE) can use to generate "dummy"
information for a sample rendering of a complex control. Typically,
this class is used with table controls, as maintaining a database
connection in design mode would be too resource-intensive, and the
data source provider may not even be available. Using the
CreateDummyDataTable( ) method, a default table is
created that uses no information from the actual data source. This
table could be used before a control's
DataSource property is set.
Visual Studio .NET can also use a minimum amount of information to
help present a design-time rendering of data tables. The
GetDataFields( ) and GetDataMembers(
) methods retrieve a basic amount of information about the
structure of the data source, which is then used when a dummy table
is created with CreateSampleDataTable( ). The
GetDesignTimeDataSource( ) method adds sample rows
into the specified data table control.
public sealed class DesignTimeData {
// Public Static Fields
public static readonly EventHandler DataBindingHandler; // =System.EventHandler
// Public Static Methods
public static DataTable CreateDummyDataTable( );
public static DataTable CreateSampleDataTable(System.Collections.IEnumerable referenceData);
public static PropertyDescriptorCollection GetDataFields(System.Collections.IEnumerable dataSource);
public static IEnumerable GetDataMember(System.ComponentModel.IListSource dataSource, string dataMember);
public static string[ ] GetDataMembers(object dataSource);
public static IEnumerable GetDesignTimeDataSource(System.Data.DataTable dataTable, int minimumRows);
public static IEnumerable GetSelectedDataSource(System.ComponentModel.IComponent component,
string dataSource, string dataMember);
public static object GetSelectedDataSource(System.ComponentModel.IComponent component, string dataSource);
}