private DataGridDataErrorEventArgs CommitCellEditPrivate()
{
if (this._editingColumnIndex == -1)
{
return null;
}
Debug.Assert(this._editingColumnIndex >= 0);
Debug.Assert(this._editingColumnIndex < this.ColumnsItemsInternal.Count);
Debug.Assert(this._editingRow != null);
DataGridDataErrorEventArgs dataError = null;
DataGridColumnBase dataGridColumn = this.ColumnsItemsInternal[this._editingColumnIndex];
FrameworkElement element = this._editingRow.Cells[this._editingColumnIndex].Content as FrameworkElement;
DataGridCellCancelEventArgs e = new DataGridCellCancelEventArgs(dataGridColumn, this._editingRow, element);
OnCommittingCellEdit(e);
if (e.Cancel)
{
dataError = new DataGridDataErrorEventArgs(null, this.CurrentColumn, this._editingRow);
dataError.Cancel = true;
return dataError;
}
// Write the new cell value into the backend for non-bound cells.
DataGridBoundColumnBase dataGridBoundColumn = dataGridColumn as DataGridBoundColumnBase;
try
{
if (dataGridBoundColumn == null)
{
//
OnCommitCellEdit(new DataGridCellEventArgs(dataGridColumn, this._editingRow, element));
}
}
catch (Exception ex)
{
dataError = new DataGridDataErrorEventArgs(ex, this.CurrentColumn, this._editingRow);
OnDataError(dataError);
return dataError;
}
return null;
}
/// <summary>
/// Raises the CommittingCellEdit event.
/// </summary>
protected virtual void OnCommittingCellEdit(DataGridCellCancelEventArgs e)
{
EventHandler<DataGridCellCancelEventArgs> handler = this.CommittingCellEdit;
if (handler != null)
{
handler(this, e);
}
}