/// <summary>
/// Removes selected items from collection.
/// </summary>
private void _RemoveSelectedItems()
{
// List of selected items.
IList selectedItems = _customOrderPropertiesXceedGrid.SelectedItems;
// If selected items exist.
if (selectedItems != null)
{
// Remove each selected item from collection of custom order properties.
// Note that on deleting item from _customOrderProperties it is also deleted from
// _customOrderPropertiesXceedGrid.SelectedItems collection.
bool deleteStatus = true;
// Iterate while collection is not empty or delete operation is failed.
while (selectedItems.Count > 0 && deleteStatus)
{
IEnumerator enumerator = selectedItems.GetEnumerator();
// Position enumerator to the first item in collection.
enumerator.MoveNext();
// Get current item from collection.
CustomOrderProperty orderProperty = enumerator.Current as CustomOrderProperty;
Debug.Assert(orderProperty != null);
// Remove item from collection.
deleteStatus = _customOrderProperties.Remove(orderProperty);
// Actually each selected item should be deleted successfully.
Debug.Assert(deleteStatus);
} // while
selectedItems = null;
} // if
}
/// <summary>
/// Changes item's name.
/// </summary>
/// <param name="e">Event arguments.</param>
private void _ChangeName(DataGridItemEventArgs e)
{
// Get custom order property from event's data.
CustomOrderProperty orderProperty = e.Item as CustomOrderProperty;
Debug.Assert(orderProperty != null);
// Check that item's name is null.
if (!string.IsNullOrEmpty(orderProperty.Name))
{
return;
}
// Get new item's name.
orderProperty.Name =
DataObjectNamesConstructor.GetNewNameForCustomOrderProperty(_customOrderProperties, true);
// Get current cell.
Cell currentCell =
_insertionRow.Cells[_customOrderPropertiesXceedGrid.CurrentContext.CurrentColumn];
// Find TextBox inside the cell.
TextBox textBox = XceedVisualTreeHelper.FindTextBoxInsideElement(currentCell);
// Select contents of found text box.
if (textBox != null)
{
textBox.SelectAll();
}
}
/// <summary>
/// Converts OrderCustomProperty to CustomOrderProperty.
/// </summary>
/// <param name="orderCustomProperty">OrderCustomProperty object to convert.</param>
/// <returns>Converted object.</returns>
private CustomOrderProperty _ConvertToCustomOrderProperty(OrderCustomProperty orderCustomProperty)
{
CustomOrderProperty customOrderPropery = new CustomOrderProperty();
customOrderPropery.Name = orderCustomProperty.Name;
customOrderPropery.Type = orderCustomProperty.Type;
customOrderPropery.MaxLength = orderCustomProperty.Length;
customOrderPropery.Description = orderCustomProperty.Description;
customOrderPropery.OrderPairKey = orderCustomProperty.OrderPairKey;
return(customOrderPropery);
}
/// <summary>
/// Stores copy of _customOrderProperties collection: _customOrderPropertiesBackup.
/// </summary>
private void _BackupCustomOrderPropertiesCollection()
{
_customOrderPropertiesBackup.Clear();
foreach (CustomOrderProperty item in _customOrderProperties)
{
// Create a clone of item.
CustomOrderProperty itemClone = (CustomOrderProperty)item.Clone();
// Add copy of item into backup collection.
_customOrderPropertiesBackup.Add(itemClone);
}
}
/// <summary>
/// Handler for the Xceed.Wpf.DataGrid.DataGridCollectionViewSource.CommittingNewItem event.
/// </summary>
/// <param name="sender">DataGridCollectionViewSource object.</param>
/// <param name="e">Event arguments.</param>
private void _DataGridCollectionViewSourceCommittingNewItem(object sender, DataGridCommittingNewItemEventArgs e)
{
// Get collection of custom order properties bound to the Xceed DataGrid control.
ICollection <CustomOrderProperty> source =
e.CollectionView.SourceCollection as ICollection <CustomOrderProperty>;
// Get custom order property which should be committed to collection.
CustomOrderProperty currentProperty = e.Item as CustomOrderProperty;
// Add custom order property to collection.
source.Add(currentProperty);
// Set index of new item in collection.
e.Index = source.Count - 1;
// Set new count of items in collection.
e.NewCount = source.Count;
// Set flag indicating that event was handled.
e.Handled = true;
}
/// <summary>
/// Loads custom order properties from collection OrderCustomPropertiesInfo.
/// </summary>
/// <param name="customPropertiesInfo">OrderCustomPropertiesInfo collection.</param>
public void LoadCustomOrderProperties(OrderCustomPropertiesInfo customPropertiesInfo)
{
Debug.Assert(customPropertiesInfo != null);
// Clear collection.
_customOrderProperties.Clear();
foreach (OrderCustomProperty orderCustomProperty in customPropertiesInfo)
{
// Create custom order property using data of item in collection.
CustomOrderProperty newOrderProperty =
new CustomOrderProperty(orderCustomProperty.Name,
orderCustomProperty.Description,
orderCustomProperty.Length,
orderCustomProperty.OrderPairKey);
// Add new custom order property to collection.
_customOrderProperties.Add(newOrderProperty);
}
// Backup collection of custom order properties.
_BackupCustomOrderPropertiesCollection();
}
