Generating Hidden Inputs for an HTML Form

The code sample shown below can be called from any transform. It assumes that a bean variable has already been defined, which can be used to fetch a particular event. This event is passed to the parameter builder, which uses it to construct a string containing all of the information necessary for generating hidden inputs for an HTML form. In this example, the bean is the ReportBean ("rb") and the event is WebEventOpenDesktop.

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 WebEvent event = null;
    
 // Create a new Hidden Input Builder
 ParameterBuilder pb = newHiddenInputBuilder();
 
 //For this example, assume "rb" is a ReportBean.
 //The ReportBean is used to fetch the WebEventOpenDesktop event.
 //To generate hidden inputs, you can use any bean and fetch any
 //event that applies to that bean.
 
 //Get the event to open the Desktop page from the bean.
 event = rb.getWebEvent(EnumServletEvents.WebEventOpenDesktop);
 
 //Next, add event information.
 //EventElementTypicalEventOnly = EnumEventElement.EventElementEventID + EnumEventElement.EventElementSource
 //See EnumEventElement interface for more details about these constant values.
 //See EnumWebPersistableState interface for more details on the state of the bean that is kept in the URL.
 
 pb.addEventInfo(event, EnumEventElement.EventElementTypicalEventOnly,EnumWebPersistableState.TYPICAL_STATE_INFO);  
 
 //Convert the parameter builder to a string
 String strHiddenInputs = pb.toString();
 
 //Add the hidden inputs to the MarkupOutput           
 out.append(strHiddenInputs);

The output of this code looks similar to:

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<input value="3010" type="hidden" name="evt" id="evt"/>
<input value="mstrWeb.3010" type="hidden" name="src" id="src"/>"

Only the ID and source of the event appear as hidden inputs (as specified in the previous code snippet).