Bug 135465 [smoke]An error occurred when new a casading Parameter
Description: An error occurred when new a casading Parameter Step to reproduce: 1.new a sample db data source and data set 2.New a cascading parameter group, named "gp1", 3.select the data set, then create two cascading parameters, one is row["customernumber"], named p1; the other is row["customername"] Actual result; error message occurred repeatly
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/CascadingParametersDialog.java
return type.equals( DesignChoiceConstants.PARAM_TYPE_FLOAT );
		}
		return false;
	}
	private void saveParameterProperties( ) throws SemanticException
	{
		if ( selectedParameter != null && selectedParameter != newParameter )
		{
			selectedParameter.setPromptText( UIUtil.convertToModelString( promptText.getText( ),
					false ) );
			selectedParameter.setHelpText( UIUtil.convertToModelString( helpTextEditor.getText( ),
					true ) );
			selectedParameter.setDefaultValue( UIUtil.convertToModelString( defaultValueEditor.getText( ),
					true ) );
			if ( StringUtil.isBlank( listLimit.getText( ) ) )
			{
				selectedParameter.setProperty( ScalarParameterHandle.LIST_LIMIT_PROP,
						null );
			}
			else
			{
				selectedParameter.setListlimit( Integer.parseInt( listLimit.getText( ) ) );
			}
			selectedParameter.setAllowNull( allowNull.getSelection( ) );
			selectedParameter.setName( UIUtil.convertToModelString( paramNameEditor.getText( ),
					true ) );
			refreshValueTable( );
		};
	}
}