Bug 200290 The warning message "A Column Binding Name as xxx already exist" should occurs while input the column binding name but not the expression[0001]
Description: The warning message "A Column Binding Name as xxx already exist" should occurs while input the column binding name but not the expression[0001] Build number: 2.2.1.v20070817-0630 Steps to reproduce: 1, New a table binding on a dataset 2, Insert a data item and input a already existed name such as CUSTOMERNUMBER 3, Specify the expression Expected result: In step2, a warning message: "A Column Binding Name as xxx already exist" should occurs to warning the user Actual result: In step3, the warning message occurs I think we should pops up this message during inputting column binding name but not inputting column binding expression. Hope to enhance that.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
dialog.getOkButton( ).setEnabled( false );
		}
		else if ( txtExpression != null
				&& ( txtExpression.getText( ) == null || txtExpression.getText( )
						.trim( )
						.equals( "" ) ) ) 
		{
			if ( dialog.getOkButton( ) != null )
				dialog.getOkButton( ).setEnabled( false );
		}
		else
		{
			if ( this.binding == null )
			{
				for ( Iterator iterator = this.bindingHolder.getColumnBindings( )
						.iterator( ); iterator.hasNext( ); )
				{
					ComputedColumnHandle computedColumn = (ComputedColumnHandle) iterator.next( );
					if ( computedColumn.getName( ).equals( txtName.getText( ) ) )
					{
						if ( dialog.getOkButton( ) != null )
							dialog.getOkButton( ).setEnabled( false );
						this.messageLine.setText( Messages.getFormattedString( "BindingDialogHelper.error.nameduplicate", 
								new Object[]{
									txtName.getText( )
								} ) );
						this.messageLine.setImage( PlatformUI.getWorkbench( )
								.getSharedImages( )
								.getImage( ISharedImages.IMG_OBJS_ERROR_TSK ) );
						return;