public bool MovementKey(ref Message msg, Keys keyData)
{
//move the selected cell based on the key pressed
switch (keyData)
{
case Keys.Up:
if (_selectedRow - 1 < 0)
{
_selectedRow = 99;
}
_selectedRow--;
_ssp.SelectionChanged(_ssp);
break;
case Keys.Down:
if (_selectedRow + 1 > 98)
{
_selectedRow = -1;
}
_selectedRow++;
_ssp.SelectionChanged(_ssp);
break;
case Keys.Right:
if (_selectedCol + 1 > 25)
{
_selectedCol = -1;
}
_selectedCol++;
_ssp.SelectionChanged(_ssp);
break;
case Keys.Left:
if (_selectedCol - 1 < 0)
{
_selectedCol = 26;
}
_selectedCol--;
_ssp.SelectionChanged(_ssp);
break;
case Keys.Tab:
if (_selectedCol + 1 > 25)
{
_selectedCol = -1;
}
_selectedCol++;
_ssp.SelectionChanged(_ssp);
break;
default:
return(false);
}
Invalidate();
return(true);
}
/// <summary>
/// Determines which cell, if any, was clicked. Generates a SelectionChanged event. All of
/// the indexes are zero based.
/// </summary>
/// <param name="e"></param>
protected override void OnMouseClick(MouseEventArgs e)
{
base.OnClick(e);
int x = (e.X - LABEL_COL_WIDTH) / DATA_COL_WIDTH;
int y = (e.Y - LABEL_ROW_HEIGHT) / DATA_ROW_HEIGHT;
if (e.X > LABEL_COL_WIDTH && e.Y > LABEL_ROW_HEIGHT && (x + _firstColumn < COL_COUNT) && (y + _firstRow < ROW_COUNT))
{
_selectedCol = x + _firstColumn;
_selectedRow = y + _firstRow;
if (_ssp.SelectionChanged != null)
{
_ssp.SelectionChanged(_ssp);
}
}
Invalidate();
}