public bool ChooseCellValue(CellValueEvaluator evaluator,
CellValueChooser chooser, string text)
{
if (chooser == null || !grid.EditedCell.IsValid)
{
return(false);
}
chooser(evaluator(grid.EditedCell.Row, text) ? string.Empty : text);
return(true);
}
private void ContinueEditingIfValid(CellKeyPressEventArgs args, CellValueEvaluator evaluator,
CellValueChooser chooser, string filter, CellValueContiueEdit contiueEdit)
{
if (evaluator(grid.EditedCell.Row, args.Entry.Text))
{
contiueEdit(grid.EditedCell.Row, args.GdkKey);
}
else if (chooser != null)
{
chooser(filter);
}
}
public bool ColumnKeyPress(CellKeyPressEventArgs args, int colIndex, CellValueChooser chooser,
CellValueEvaluator evaluator, CellValueContiueEdit editPrev, CellValueContiueEdit editNext)
{
if (args == null)
{
throw new ArgumentNullException("args");
}
string filter = args.Editing ? args.Entry.Text : string.Empty;
if (KeyShortcuts.Equal(args.EventKey, KeyShortcuts.ChooseKey))
{
args.MarkAsHandled();
return(ChooseCellValue(evaluator, chooser, filter));
}
switch (args.GdkKey)
{
case Key.Tab:
case Key.Return:
case Key.KP_Enter:
if (args.Editing)
{
ContinueEditingIfValid(args, evaluator, chooser, filter, editNext);
}
break;
case Key.Right:
if (args.Editing)
{
// If the cursor is at the end of the text
if (args.Entry.CursorPosition == args.Entry.Text.Length)
{
ContinueEditingIfValid(args, evaluator, chooser, filter, editNext);
}
}
break;
case Key.Left:
case Key.ISO_Left_Tab:
if (args.Editing)
{
// If the cursor is at the end of the text
if (args.Entry.CursorPosition == args.Entry.Text.Length ||
args.Entry.CursorPosition == 0 ||
args.GdkKey == Key.ISO_Left_Tab)
{
ContinueEditingIfValid(args, evaluator, chooser, filter, editPrev);
}
}
break;
case Key.Up:
case Key.KP_Up:
if (args.Editing)
{
evaluator(grid.EditedCell.Row, args.Entry.Text);
cellUpEditor(colIndex);
}
break;
case Key.Down:
case Key.KP_Down:
if (args.Editing)
{
evaluator(grid.EditedCell.Row, args.Entry.Text);
cellDownEditor(colIndex);
}
break;
case Key.BackSpace:
if (args.Editing)
{
if (args.Entry.Text.Length == 0)
{
evaluator(grid.EditedCell.Row, args.Entry.Text);
editPrev(grid.EditedCell.Row, args.GdkKey);
}
}
break;
default:
return(false);
}
return(true);
}
