Using enums in DWR to populate select or multi-select
In case we need to population enumeration data in combo box or multi-select widgets, in DWR (integrated on Spring), following is the approach:
1) In the spring’s applicationContext.
a) Add the method which returns the enum entity to <dwr:remote>
b) Add a dwr:convert tag of type ‘enum’ (as below)
<dwr:remote javascript="myoperations"> <dwr:include method="getDataAsEnum"/> <dwr:convert type="enum"/> </dwr:remote>
2) In the view (jsp) file, you could invoke the following javascript function with <body onload=”loadEnumeration();”>
function loadEnumeration()
{ myOperations.getDataAsEnum(callbackFunctionHandle);
};
var callbackFunctionHandle = function(data)
{ dwr.util.removeAllOptions('enum_select');
dwr.util.addOptions('enum_select',['--Select--']);
dwr.util.addOptions('enum_select', data);
}
