private void OnNewLinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
InstanceCreationEditor ice = e.Link.LinkData as InstanceCreationEditor;
Debug.Assert(ice != null, "How do we have a link without the InstanceCreationEditor?");
if (ice != null && gridView?.SelectedGridEntry != null)
{
Type createType = gridView.SelectedGridEntry.PropertyType;
if (createType != null)
{
gridView.CloseDropDown();
object newValue = ice.CreateInstance(gridView.SelectedGridEntry, createType);
if (newValue != null)
{
// make sure we got what we asked for.
//
if (!createType.IsInstanceOfType(newValue))
{
throw new InvalidCastException(string.Format(SR.PropertyGridViewEditorCreatedInvalidObject, createType));
}
gridView.CommitValue(newValue);
}
}
}
}
/// <summary>
/// Extends CreateInstance so that methods that return a specific type object given a Type parameter can be
/// used as generic method and casting is not required.
/// <example>
/// instancecreationeditor.CreateInstance<int>(context);
/// </example>
/// </summary>
public static T CreateInstance <T>(this InstanceCreationEditor instancecreationeditor, ITypeDescriptorContext context)
{
if (instancecreationeditor == null)
{
throw new ArgumentNullException("instancecreationeditor");
}
return((T)instancecreationeditor.CreateInstance(context, typeof(T)));
}
