How can I filter as you type on numeric datagridcolumn?

Question

Hello,
I use this script to filter, it works great with string
field, but when change it to numeric field (ie. contact_number) I
got this error (property length not found on Number and there is no
default value. Does any one have any idea why and how I can correct
this?
Thanks in advance for any help.
Phong.
public function processFilter(item:Object):Boolean
var result:Boolean=false;
if (!item.FirstName.length
||
item.FirstName.toUpperCase().indexOf(search.text.toUpperCase())
>= 0)
result=true;
return result;
}

Answer 1

I assume you're talking about a JSF application.
I think you should be able to do this in the constructor of a backing bean.
1) Add an operation binding, bound to your service method, to the page's pageDefinition.
2) On the JSF page flow Overview tab, add a managed property to the backing bean. Call it, say, myMethod, give it type oracle.bindings.OperationBinding, and give it the value #{bindings.nameOfYourOperationBinding}
3) Add a myMethod field of type OperationBinding, with getter and setter, to your backing bean class.
4) In the backing bean class's constructor, add code like:
myMethod.execute();This will execute the method every time the page is loaded.
Now, if you want to execute the method only the first time the page is loaded, it's a bit trickier. You need to set, and use, a session variable:
Map sessionVars = FacesContext.getCurrentInstance().getExternalContext().getSessionMap();
if (sessionVars.get("hereBefore") == null)
  myMethod.execute();
  sessionVars.put("hereBefore", "true");
}