Bug 200143 If do not allow user to modify the expression, the button fx should be disabled[0005]
Description: If do not allow user to modify the expression, the button fx should be disabled[0005] Build number: 2.2.1.v20070816-0630 Steps to reproduce: 1, New a table1 with one binding 2, New a table share table1's result set 3, Drag a data item into the table 4, after specify the column binding name try to modify the expression Expected result: The expression button should be disable. Actual result: The expression can be edit but can not save, so the button should be disable Error log:
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
public void modifyText( ModifyEvent e )
			{
				validate( );
			}
		} );
		if ( isRef )
		{
			txtDisplayName.setEnabled( false );
			cmbType.setEnabled( false );
			txtExpression.setEnabled( false );
		}
	}
	private void createMessageSection( Composite composite )
	{
		messageLine = new CLabel( composite, SWT.NONE );
		GridData layoutData = new GridData( GridData.FILL_HORIZONTAL );
		layoutData.horizontalSpan = 3;
		messageLine.setLayoutData( layoutData );
	}
	private void verifyInput( )
	{
		if ( isRef
				&& ( cmbName.getText( ) == null || cmbName.getText( )
						.equals( "" ) ) )
		{
			dialog.getOkButton( ).setEnabled( false );
			return;
		}
		if ( txtName != null
				&& ( txtName.getText( ) == null || txtName.getText( )