public static void UpdateColumnsOnItemsPropertiesChanged(
DataGridControl dataGridControl,
ColumnCollection columns,
bool autoCreateForeignKeyConfigurations,
NotifyCollectionChangedEventArgs e,
DataGridItemPropertyCollection itemProperties )
{
if( dataGridControl == null )
return;
switch( e.Action )
{
case NotifyCollectionChangedAction.Add:
{
foreach( DataGridItemPropertyBase itemProperty in e.NewItems )
{
string name = itemProperty.Name;
if( columns[ name ] == null )
{
Column column = ItemsSourceHelper.CreateColumnFromItemsSourceField(
dataGridControl, dataGridControl.DefaultCellEditors,
ItemsSourceHelper.CreateFieldFromDataGridItemProperty( itemProperty ),
autoCreateForeignKeyConfigurations );
if( column != null )
{
columns.Add( column );
ItemsSourceHelper.ApplySettingsRepositoryToColumn( column );
}
}
}
}
break;
case NotifyCollectionChangedAction.Remove:
{
foreach( DataGridItemPropertyBase itemProperty in e.OldItems )
{
string name = itemProperty.Name;
Column column = columns[ name ] as Column;
if( ( column != null ) && ( column.IsAutoCreated ) )
{
columns.Remove( column );
}
}
break;
}
case NotifyCollectionChangedAction.Replace:
{
foreach( DataGridItemPropertyBase itemProperty in e.OldItems )
{
string name = itemProperty.Name;
Column column = columns[ name ] as Column;
if( ( column != null ) && ( column.IsAutoCreated ) )
{
columns.Remove( column );
}
}
foreach( DataGridItemPropertyBase itemProperty in e.NewItems )
{
string name = itemProperty.Name;
if( columns[ name ] == null )
{
Column column = ItemsSourceHelper.CreateColumnFromItemsSourceField(
dataGridControl, dataGridControl.DefaultCellEditors,
ItemsSourceHelper.CreateFieldFromDataGridItemProperty( itemProperty ),
autoCreateForeignKeyConfigurations );
if( column != null )
{
columns.Add( column );
ItemsSourceHelper.ApplySettingsRepositoryToColumn( column );
}
}
}
break;
}
case NotifyCollectionChangedAction.Reset:
{
for( int i = columns.Count - 1; i >= 0; i-- )
{
Column dataColumn = columns[ i ] as Column;
if( ( dataColumn != null ) && ( dataColumn.IsAutoCreated ) )
{
columns.Remove( dataColumn );
}
}
foreach( DataGridItemPropertyBase itemProperty in itemProperties )
{
string name = itemProperty.Name;
if( columns[ name ] == null )
{
Column column = ItemsSourceHelper.CreateColumnFromItemsSourceField(
dataGridControl, dataGridControl.DefaultCellEditors,
ItemsSourceHelper.CreateFieldFromDataGridItemProperty( itemProperty ),
autoCreateForeignKeyConfigurations );
if( column != null )
{
columns.Add( column );
ItemsSourceHelper.ApplySettingsRepositoryToColumn( column );
}
}
}
break;
}
//case NotifyCollectionChangedAction.Move:
default:
break;
}
}
public static void CleanUpColumns( ColumnCollection columns, bool deleteAutoCreatedColumn )
{
ColumnBase[] tempColumns = new ColumnBase[ columns.Count ];
columns.CopyTo( tempColumns, 0 );
foreach( ColumnBase column in tempColumns )
{
Column dataColumn = column as Column;
if( dataColumn == null )
continue;
if( ( deleteAutoCreatedColumn ) && ( dataColumn.IsAutoCreated ) )
{
columns.Remove( column );
}
else if( dataColumn.IsBindingAutoCreated )
{
// Disable warning for DisplayMemberBinding when internaly used
#pragma warning disable 618
//clear the display member binding.
dataColumn.DisplayMemberBinding = null;
#pragma warning restore 618
dataColumn.IsBindingAutoCreated = false;
dataColumn.IsBoundToDataGridUnboundItemProperty = false;
}
}
}
