void IVirtualizedItemProvider.Realize()
{
if (this.OwningDataGrid != null)
{
OwningDataGrid.ScrollIntoView(null, Column);
}
}
void IValueProvider.SetValue(string value)
{
if (_column.IsReadOnly)
{
throw new InvalidOperationException(SR.Get(SRID.DataGrid_ColumnIsReadOnly));
}
if (this.OwningDataGrid != null)
{
OwningDataGrid.SetCellAutomationValue(Item, _column, value);
}
}
// Invoking DataGrid item should commit the item if it is in edit mode
// or BeginEdit if item is not in edit mode
void IInvokeProvider.Invoke()
{
EnsureEnabled();
if (OwningRowPeer == null)
{
OwningDataGrid.ScrollIntoView(_item);
}
var success = false;
if (OwningRow != null)
{
IEditableCollectionView iecv = OwningDataGrid.Items;
if (iecv.CurrentEditItem == _item)
{
success = OwningDataGrid.CommitEdit();
}
else
{
if (OwningDataGrid.Columns.Count > 0)
{
var cell = OwningDataGrid.TryFindCell(_item, OwningDataGrid.Columns[0]);
if (cell != null)
{
OwningDataGrid.UnselectAll();
cell.Focus();
success = OwningDataGrid.BeginEdit();
}
}
}
}
// Invoke on a NewItemPlaceholder row creates a new item.
// BeginEdit on a NewItemPlaceholder row returns false.
if (!success && !IsNewItemPlaceholder)
{
throw new InvalidOperationException(SR.Get(SRID.DataGrid_AutomationInvokeFailed));
}
}
void IVirtualizedItemProvider.Realize()
{
OwningDataGrid.ScrollIntoView(Item, _column);
}
void IScrollItemProvider.ScrollIntoView()
{
OwningDataGrid.ScrollIntoView(_item);
}
