Bug 136522 [Regression]DateTime parameter can't be drag to the layout
Steps to reproduce: 1.New a date time parameter 2.Drag it to the layout Actual result: A BIRT exception occurred. Plug-in Provider:Eclipse.org Plug-in Name:BIRT Model Plug-in ID:org.eclipse.birt.report.model Version:2.1.0.N20060412-2230 Error Code:Error.PropertyValueException.CHOICE_NOT_FOUND Error Message:The choice value "dateTime" is not found.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dnd/InsertInLayoutUtil.java
/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.birt.report.designer.internal.ui.dnd.InsertInLayoutUtil.InsertInLayoutRule#insert(java.lang.Object)
		 */
		public void insert( Object object ) throws SemanticException
		{
			Assert.isTrue( object instanceof ResultSetColumnHandle );
			Assert.isTrue( object == dataSetColumn || object == null );
			getGroupContainer( container ).setDataSet( getDataSetHandle( dataSetColumn ) );
			getGroupHandle( container ).setKeyExpr( DEUtil.getExpression( dataSetColumn ) );
		}
		protected DataSetHandle getDataSetHandle( ResultSetColumnHandle model )
		{
			return (DataSetHandle) model.getElementHandle( );
		}
		protected GroupHandle getGroupHandle( Object target )
		{
			DesignElementHandle handle = null;
			if ( target instanceof CellHandle )
			{
				handle = ( (CellHandle) target ).getContainer( ).getContainer( );
			}
			else if ( target instanceof ListBandProxy )
			{
				handle = ( (ListBandProxy) target ).getElemtHandle( );
			}
			if ( handle instanceof GroupHandle )
			{
				return (GroupHandle) handle;