/// <summary>
/// Extends BeginInvoke so that when a state object is not needed, null does not need to be passed.
/// <example>
/// datagridviewdataerroreventhandler.BeginInvoke(sender, e, callback);
/// </example>
/// </summary>
public static IAsyncResult BeginInvoke(this DataGridViewDataErrorEventHandler datagridviewdataerroreventhandler, Object sender, DataGridViewDataErrorEventArgs e, AsyncCallback callback)
{
if (datagridviewdataerroreventhandler == null)
{
throw new ArgumentNullException("datagridviewdataerroreventhandler");
}
return(datagridviewdataerroreventhandler.BeginInvoke(sender, e, callback, null));
}
/// <summary>
/// Constructor
/// </summary>
public EnhancedGrid()
{
InitializeComponent();
CellDoubleClick += new DataGridViewCellEventHandler(OnCellDoubleClick);
CellClick += new DataGridViewCellEventHandler(OnCellClick);
CellValidating += new DataGridViewCellValidatingEventHandler(OnCellValidating);
DataError += new DataGridViewDataErrorEventHandler(OnDataError);
EditingControlShowing += new DataGridViewEditingControlShowingEventHandler(OnEditingControlShowing);
RowHeadersVisible = false;
// Populate the context menu.
ToolStripMenuItem CopyItem = (ToolStripMenuItem)PopupMenu.Items.Add("Copy");
CopyItem.ShortcutKeys = Keys.Control | Keys.C;
CopyItem.Click += new EventHandler(OnCopy);
ToolStripMenuItem PasteItem = (ToolStripMenuItem)PopupMenu.Items.Add("Paste");
PasteItem.ShortcutKeys = Keys.Control | Keys.V;
PasteItem.Click += new EventHandler(OnPaste);
ToolStripMenuItem DeleteItem = (ToolStripMenuItem)PopupMenu.Items.Add("Delete");
DeleteItem.ShortcutKeys = Keys.Delete;
DeleteItem.Click += new EventHandler(OnDelete);
PopupMenu.Items.Add(new ToolStripSeparator());
ToolStripMenuItem MoveDownItem = (ToolStripMenuItem)PopupMenu.Items.Add("Move down");
MoveDownItem.ShortcutKeys = Keys.Control | Keys.Down;
MoveDownItem.Click += new EventHandler(OnMoveDown);
ToolStripMenuItem MoveUpItem = (ToolStripMenuItem)PopupMenu.Items.Add("Move up");
MoveUpItem.ShortcutKeys = Keys.Control | Keys.Up;
MoveUpItem.Click += new EventHandler(OnMoveUp);
ContextMenuStrip = PopupMenu;
}
