internal static CustomItemContainerGenerator CreateGenerator( DataGridControl parentGridControl, CollectionView collectionView, DataGridContext dataGridContext )
{
CustomItemContainerGenerator newGenerator = new CustomItemContainerGenerator( collectionView, dataGridContext, parentGridControl );
dataGridContext.SetGenerator( newGenerator );
return newGenerator;
}
public void RemoveRef(CustomItemContainerGenerator reference)
{
if (m_refList.Contains(reference) == true)
{
m_refList.Remove(reference);
}
}
public GeneratorNode CreateItemsGeneratorNode(
IList collection,
GeneratorNode parent,
GeneratorNode previous,
GeneratorNode next,
CustomItemContainerGenerator generator)
{
Debug.Assert(collection != null, "collection cannot be null for CreateItemsGeneratorNode()");
Debug.Assert(generator != null);
INotifyCollectionChanged notifyCollection = collection as INotifyCollectionChanged;
Debug.Assert(notifyCollection != null, "collection must be a INotifyCollectionChanged for CreateItemsGeneratorNode()");
ItemCollection itemCollection = collection as ItemCollection;
if (itemCollection != null)
{
DataGridCollectionView dgcv = itemCollection.SourceCollection as DataGridCollectionView;
if (dgcv != null)
{
collection = dgcv;
}
}
ItemsGeneratorNode node = new ItemsGeneratorNode(collection, parent);
this.SetupCollectionGeneratorNode(node, parent, previous, next);
node.AdjustLeafCount(node.Items.Count);
return(node);
}
public void AddRef(CustomItemContainerGenerator reference)
{
if (m_refList.Contains(reference) == false)
{
m_refList.Add(reference);
}
}
public void AddRef(CustomItemContainerGenerator reference)
{
Debug.Assert(reference != null);
if (m_generators.Contains(reference))
{
return;
}
m_generators.Add(reference);
}
public DetailGeneratorNode( DataGridContext context, CustomItemContainerGenerator generator )
: base( null )
{
if( generator == null )
throw new ArgumentNullException( "generator" );
if( context == null )
throw new ArgumentNullException( "context" );
m_generator = generator;
m_context = context;
m_itemCount = generator.ItemCount;
}
public DetailGeneratorNode(DataGridContext context, CustomItemContainerGenerator generator)
: base(null)
{
if (generator == null)
{
throw new ArgumentNullException("generator");
}
if (context == null)
{
throw new ArgumentNullException("context");
}
m_generator = generator;
m_context = context;
m_itemCount = generator.ItemCount;
}
private void InitializeGenerator()
{
DataGridControl dataGridControl = this.ParentDataGridControl;
if( dataGridControl == null )
throw new DataGridInternalException( "No DataGridContext set on the DataGridItemsHost while trying to initalize the ItemContainerGenerator" );
if( m_generator == null )
{
m_generator = dataGridControl.CustomItemContainerGenerator;
}
Debug.Assert( m_generator != null );
m_generator.ItemsChanged += this.HandleGeneratorItemsChanged;
m_generator.ContainersRemoved += this.HandleGeneratorContainersRemoved;
m_generatorInitialized = true;
}
protected override void StopListening( object source )
{
DataGridControl dataGridControl = source as DataGridControl;
if( dataGridControl != null )
{
dataGridControl.DetailsChanged -= this.OnDetailsChanged;
return;
}
else
{
CustomItemContainerGenerator generator = source as CustomItemContainerGenerator;
if( generator != null )
{
generator.DetailsChanged -= this.OnDetailsChanged;
return;
}
}
throw new InvalidOperationException( "An attempt was made to use a source other than a DataGridControl or CustomItemContainerGenerator." );
}
private void InitializeGenerator()
{
DataGridControl dataGridControl = this.ParentDataGridControl;
if (dataGridControl == null)
{
throw new DataGridInternalException("No DataGridContext set on the DataGridItemsHost while trying to initalize the ItemContainerGenerator");
}
if (m_generator == null)
{
m_generator = dataGridControl.CustomItemContainerGenerator;
}
Debug.Assert(m_generator != null);
m_generator.ItemsChanged += this.HandleGeneratorItemsChanged;
m_generator.ContainersRemoved += this.HandleGeneratorContainersRemoved;
m_generatorInitialized = true;
}
public GeneratorNode CreateItemsGeneratorNode(
IList collection,
GeneratorNode parent,
GeneratorNode previous,
GeneratorNode next,
CustomItemContainerGenerator generator)
{
Debug.Assert(collection != null, "collection cannot be null for CreateItemsGeneratorNode()");
Debug.Assert(generator != null);
INotifyCollectionChanged notifyCollection = collection as INotifyCollectionChanged;
Debug.Assert(notifyCollection != null, "collection must be a INotifyCollectionChanged for CreateItemsGeneratorNode()");
//case 113904: If the item source for the ItemsGeneratorNode is an ItemCollection, then
//check if the underlying SourceCollection is a DataGridCollectionView.
//This particular exception case is there to handle messaging quirks in the case
//of Master Detail edition. Refer to case for more details.
ItemCollection itemCollection = collection as ItemCollection;
if (itemCollection != null)
{
DataGridCollectionView dgcv = itemCollection.SourceCollection as DataGridCollectionView;
if (dgcv != null)
{
collection = dgcv;
}
}
ItemsGeneratorNode node = new ItemsGeneratorNode(collection, parent);
this.SetupCollectionGeneratorNode(node, parent, previous, next);
node.AdjustLeafCount(node.Items.Count);
return(node);
}
public DeferContainersRemovedDisposable( CustomItemContainerGenerator generator )
{
if( generator == null )
throw new ArgumentNullException( "generator" );
m_generator = generator;
Debug.Assert( ( m_generator.m_containersRemovedDeferCount != 0 ) || ( m_generator.m_deferredContainersRemoved.Count == 0 ), "( m_generator.m_containersRemovedDeferCount != 0 ) || ( m_generator.m_deferredContainersRemoved.Count == 0 )" );
#if LOG
Log.Assert( this, ( m_generator.m_containersRemovedDeferCount != 0 ) || ( m_generator.m_deferredContainersRemoved.Count == 0 ), "( m_generator.m_containersRemovedDeferCount != 0 ) || ( m_generator.m_deferredContainersRemoved.Count == 0 )" );
#endif
m_generator.m_containersRemovedDeferCount++;
}
public GenPostoIndexInhibitionDisposable( CustomItemContainerGenerator generator )
{
if( generator == null )
throw new ArgumentNullException( "generator" );
m_generator = generator;
m_generator.m_genPosToIndexUpdateInhibitCount++;
if( m_generator.m_genPosToIndexInhibiter != null )
{
m_nestedDisposable = m_generator.m_genPosToIndexInhibiter.InhibitGenPosToIndexUpdates();
}
}
public void RemoveRef( CustomItemContainerGenerator reference )
{
if( m_refList.Contains( reference ) == true )
{
m_refList.Remove( reference );
}
}
public void AddRef( CustomItemContainerGenerator reference )
{
if( m_refList.Contains( reference ) == false )
{
m_refList.Add( reference );
}
}
private DetailGeneratorNode FindDetailGeneratorNodeForGenerator( CustomItemContainerGenerator detailGenerator, out object masterItem )
{
foreach( KeyValuePair<object, List<DetailGeneratorNode>> detailsForItem in m_masterToDetails )
{
foreach( DetailGeneratorNode detailNode in detailsForItem.Value )
{
if( detailNode.DetailGenerator == detailGenerator )
{
masterItem = detailsForItem.Key;
return detailNode;
}
}
}
masterItem = null;
return null;
}
public CustomItemContainerGeneratorDisposableDisposer( CustomItemContainerGenerator generator, GeneratorPosition startGenPos, GeneratorDirection direction )
{
if( generator == null )
{
throw new ArgumentNullException( "generator" );
}
m_generator = generator;
m_generator.StartGenerator( startGenPos, direction );
}
public GeneratorNode CreateItemsGeneratorNode(
IList collection,
GeneratorNode parent,
GeneratorNode previous,
GeneratorNode next,
CustomItemContainerGenerator generator )
{
Debug.Assert( collection != null, "collection cannot be null for CreateItemsGeneratorNode()" );
Debug.Assert( generator != null );
INotifyCollectionChanged notifyCollection = collection as INotifyCollectionChanged;
Debug.Assert( notifyCollection != null, "collection must be a INotifyCollectionChanged for CreateItemsGeneratorNode()" );
ItemCollection itemCollection = collection as ItemCollection;
if( itemCollection != null )
{
DataGridCollectionView dgcv = itemCollection.SourceCollection as DataGridCollectionView;
if( dgcv != null )
{
collection = dgcv;
}
}
ItemsGeneratorNode node = new ItemsGeneratorNode( collection, parent );
this.SetupCollectionGeneratorNode( node, parent, previous, next );
node.AdjustLeafCount( node.Items.Count );
return node;
}
public DeferDetailsRemapDisposable( CustomItemContainerGenerator generator )
{
if( generator == null )
throw new ArgumentNullException( "generator" );
m_generator = generator;
m_generator.m_remapDeferCount++;
}
public void RemoveRef(CustomItemContainerGenerator reference)
{
Debug.Assert(reference != null);
m_generators.Remove(reference);
}
public ProcessingGlobalItemsResetOrRemovingAllGeneratedItemsDisposable( CustomItemContainerGenerator generator )
{
if( generator == null )
throw new ArgumentNullException( "generator" );
m_generator = generator;
Debug.Assert( ( m_generator.m_containersRemovedDeferCount != 0 ) || ( m_generator.m_deferredContainersRemoved.Count == 0 ), "( m_generator.m_containersRemovedDeferCount != 0 ) || ( m_generator.m_deferredContainersRemoved.Count == 0 )" );
#if LOG
Log.Assert( this, ( m_generator.m_containersRemovedDeferCount != 0 ) || ( m_generator.m_deferredContainersRemoved.Count == 0 ), "( m_generator.m_containersRemovedDeferCount != 0 ) || ( m_generator.m_deferredContainersRemoved.Count == 0 )" );
#endif
m_generator.m_isProcessingGlobalResetOrRemovingAllGeneratedItemsDisposableCount++;
}
public GeneratorNode CreateItemsGeneratorNode(
IList collection,
GeneratorNode parent,
GeneratorNode previous,
GeneratorNode next,
CustomItemContainerGenerator generator )
{
Debug.Assert( collection != null, "collection cannot be null for CreateItemsGeneratorNode()" );
Debug.Assert( generator != null );
INotifyCollectionChanged notifyCollection = collection as INotifyCollectionChanged;
Debug.Assert( notifyCollection != null, "collection must be a INotifyCollectionChanged for CreateItemsGeneratorNode()" );
//case 113904: If the item source for the ItemsGeneratorNode is an ItemCollection, then
//check if the underlying SourceCollection is a DataGridCollectionView.
//This particular exception case is there to handle messaging quirks in the case
//of Master Detail edition. Refer to case for more details.
ItemCollection itemCollection = collection as ItemCollection;
if( itemCollection != null )
{
DataGridCollectionView dgcv = itemCollection.SourceCollection as DataGridCollectionView;
if( dgcv != null )
{
collection = dgcv;
}
}
ItemsGeneratorNode node = new ItemsGeneratorNode( collection, parent );
this.SetupCollectionGeneratorNode( node, parent, previous, next );
node.AdjustLeafCount( node.Items.Count );
return node;
}
