public override TypeConverter.StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
{
string[] array = null;
if (context != null)
{
IComponent instance = context.Instance as IComponent;
if (instance != null)
{
ISite site = instance.Site;
if (site != null)
{
IDesignerHost service = (IDesignerHost)site.GetService(typeof(IDesignerHost));
if (service != null)
{
IDesigner dataBoundControlDesigner = service.GetDesigner(instance);
DesignerDataSourceView view = this.GetView(dataBoundControlDesigner);
if (view != null)
{
IDataSourceDesigner dataSourceDesigner = view.DataSourceDesigner;
if (dataSourceDesigner != null)
{
string[] viewNames = dataSourceDesigner.GetViewNames();
if (viewNames != null)
{
array = new string[viewNames.Length];
viewNames.CopyTo(array, 0);
}
}
}
if (((array == null) && (dataBoundControlDesigner != null)) && (dataBoundControlDesigner is IDataSourceProvider))
{
IDataSourceProvider provider = dataBoundControlDesigner as IDataSourceProvider;
object dataSource = null;
if (provider != null)
{
dataSource = provider.GetSelectedDataSource();
}
if (dataSource != null)
{
array = DesignTimeData.GetDataMembers(dataSource);
}
}
}
}
}
if (array == null)
{
array = new string[0];
}
Array.Sort(array, Comparer.Default);
}
return(new TypeConverter.StandardValuesCollection(array));
}
/// <include file='doc\DataMemberConverter.uex' path='docs/doc[@for="DataMemberConverter.GetStandardValues"]/*' />
/// <devdoc>
/// <para>
/// Gets the fields present within the selected data source if information about them is available.
/// </para>
/// </devdoc>
public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
{
string[] names = null;
if (context != null)
{
// REVIEW: We should try and support the multi-select scenario - Get the data source
// from each selected component. If they are the same, we can proceed,
// otherwise return an empty collection.
// This converter shouldn't be used in a multi-select scenario. If it is, it simply
// returns no standard values.
IComponent component = context.Instance as IComponent;
if (component != null)
{
ISite componentSite = component.Site;
if (componentSite != null)
{
IDesignerHost designerHost = (IDesignerHost)componentSite.GetService(typeof(IDesignerHost));
if (designerHost != null)
{
IDesigner designer = designerHost.GetDesigner(component);
if (designer is IDataSourceProvider)
{
object dataSource = ((IDataSourceProvider)designer).GetSelectedDataSource();
if (dataSource != null)
{
names = DesignTimeData.GetDataMembers(dataSource);
}
}
}
}
}
if (names == null)
{
names = new string[0];
}
Array.Sort(names);
}
return(new StandardValuesCollection(names));
}