Bug 113938 Report is marked dirty when open/close cascading parameter dialog without doing any operation on it
description: Report is marked dirty when open/close cascading parameter dialog without doing any operation on it steps to reproduce: 1.new a cascading parameter group 2.save the reprot 3.double click the cascading parameter to bring out edit box 4.click OK to close edit box actual result: Report has been marked dirty expected result: No dirty marked for that no operations done in edit parameter dialog
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/CascadingParametersDialog.java
if ( index == -1 )
			{
				return null;
			}
			return formatString.substring( index + 1 );
		}
		return null;
	}
	private String getColumnName( String value )
	{
		DataSetItemModel[] models = DataSetManager.getCurrentInstance( )
				.getColumns( dataSet, true );
		if ( value != null )
		{
			for ( int i = 0; i < models.length; i++ )
			{
				if ( value.equalsIgnoreCase( DEUtil.getColumnExpression( models[i].getName( ) ) ) )
				{
					return models[i].getName( );
				}
			}
		}
		return null;
	}
	private void updateButtons( )
	{
		boolean okEnable = true;
		if ( dataSet == null )
		{
			okEnable = false;