Bug 180426 In library, do not allowed the dataset drag in to the row and column area of cross tab[1102]
Description: In library do not allowed the dataset drag in to the row and column area of cross tab[1102] Build number: 2.2.0.v20070402-0630 Steps to reproduce: Try to drag a dataset in data explorer into the row area and column area in x-tab. The plus icon show the operation is allowed, But after the insertion, error occurs. Expected result: The dataset is not allowed to insert into the row and column area Error log: java.lang.ClassCastException: org.eclipse.birt.report.item.crosstab.internal.ui.editors.model.VirtualCrosstabCellAdapter at org.eclipse.birt.report.designer.core.commands.CreateCommand.execute(CreateCommand.java:102) at org.eclipse.birt.report.designer.internal.ui.command.WrapperCommandStack.execute(WrapperCommandStack.java:86) at org.eclipse.gef.dnd.AbstractTransferDropTargetListener.handleDrop(AbstractTransferDropTargetListener.java:314) at org.eclipse.gef.dnd.TemplateTransferDropTargetListener.handleDrop(TemplateTransferDropTargetListener.java:101) at org.eclipse.birt.report.designer.internal.ui.palette.ReportTemplateTransferDropTargetListener.handleDrop(ReportTemplateTransferDropTargetListener.java:230) at org.eclipse.gef.dnd.AbstractTransferDropTargetListener.drop(AbstractTransferDropTargetListener.java:171) at org.eclipse.jface.util.DelegatingDropAdapter$3.run(DelegatingDropAdapter.java:211)
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/palette/ReportTemplateTransferDropTargetListener.java
if ( ( (ReportElementHandle) dragObj ).getRoot( ) instanceof LibraryHandle )
					{
						
						
						if ( dragObj instanceof DataSetHandle
								|| dragObj instanceof ParameterHandle )
							return true;
						if ( !DNDUtil.handleValidateTargetCanContain( targetEditPart.getModel( ),
								dragObj )
								|| !DNDUtil.handleValidateTargetCanContainMore( targetEditPart.getModel( ),
										1 ) )
						{
							return false;
						}
					}
					else
					{
						return false;
					}
				}
				else if ( dragObj instanceof EmbeddedImageHandle
						&& ( (EmbeddedImageHandle) dragObj ).getElementHandle( )
								.getRoot( ) instanceof LibraryHandle )
				{
					int canContain = DNDUtil.handleValidateTargetCanContain( targetEditPart.getModel( ),
							dragObj,
							true );
					return canContain == DNDUtil.CONTAIN_THIS;
				}
				else