Bug 198504 The same name aggregation should be hint in dialog[0001]
Description: The same name aggregation should be hint in dialog[0001] Step: 1.New a datasource, dataset, table and binding the dataset. 2.New a aggregation column binding on table named aggr1. 3.Drop a aggregation item into table and set the named as aggr1. 4.Click OK Actual result: Pop up an error message said that the name is exist. Expected result: It can hint in dialog when input the same name, but pop up an error dialog
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
}
			}
		} );
		argsComposite = new Composite( composite, SWT.NONE );
		GridData gridData = new GridData( GridData.FILL_HORIZONTAL
				| GridData.GRAB_HORIZONTAL );
		gridData.horizontalSpan = 3;
		gridData.exclude = true;
		argsComposite.setLayoutData( gridData );
		GridLayout layout = new GridLayout( );
		
		layout.marginWidth = layout.marginHeight = 0;
		layout.numColumns = 3;
		argsComposite.setLayout( layout );
		new Label( composite, SWT.NONE ).setText( FILTER_CONDITION );
		txtFilter = new Text( composite, SWT.BORDER );
		txtFilter.setLayoutData( new GridData( GridData.FILL_HORIZONTAL
				| GridData.GRAB_HORIZONTAL ) );
		createExpressionButton( composite, txtFilter );
		txtFilter.addModifyListener( new ModifyListener( ) {
			public void modifyText( ModifyEvent e )
			{
			}
		} );
		Label lblAggOn = new Label( composite, SWT.NONE );
		lblAggOn.setText( AGGREGATE_ON );
		gridData = new GridData( );
		gridData.verticalAlignment = GridData.BEGINNING;
		lblAggOn.setLayoutData( gridData );
		Composite aggOnComposite = new Composite( composite, SWT.NONE );