/// <summary>
/// <para>Prepares a cell for editing.</para>
/// </summary>
protected internal override void Edit(CurrencyManager source,
int rowNum,
Rectangle bounds,
bool readOnly,
string displayText,
bool cellIsVisible)
{
DebugOut("Begining Edit, rowNum :" + rowNum.ToString(CultureInfo.InvariantCulture));
Rectangle originalBounds = bounds;
edit.ReadOnly = readOnly || ReadOnly || DataGridTableStyle.ReadOnly;
edit.Text = GetText(GetColumnValueAtRow(source, rowNum));
if (!edit.ReadOnly && displayText != null)
{
// tell the grid that we are changing stuff
DataGridTableStyle.DataGrid.ColumnStartedEditing(bounds);
// tell the edit control that the user changed it
edit.IsInEditOrNavigateMode = false;
edit.Text = displayText;
}
if (cellIsVisible)
{
bounds.Offset(xMargin, 2 * yMargin);
bounds.Width -= xMargin;
bounds.Height -= 2 * yMargin;
DebugOut("edit bounds: " + bounds.ToString());
edit.Bounds = bounds;
edit.Visible = true;
edit.TextAlign = Alignment;
}
else
{
edit.Bounds = Rectangle.Empty;
// edit.Bounds = originalBounds;
// edit.Visible = false;
}
edit.RightToLeft = DataGridTableStyle.DataGrid.RightToLeft;
edit.Focus();
editRow = rowNum;
if (!edit.ReadOnly)
{
oldValue = edit.Text;
}
// select the text even if the text box is read only
// because the navigation code in the DataGridTextBox::ProcessKeyMessage
// uses the SelectedText property
if (displayText == null)
{
edit.SelectAll();
}
else
{
int end = edit.Text.Length;
edit.Select(end, 0);
}
if (edit.Visible)
{
DataGridTableStyle.DataGrid.Invalidate(originalBounds);
}
}
