Iterate an Object

Now I know this seems like a very simple matter, in fact, I am pretty sure I've done this before, but during the current project I am running is a strange behavior.

First the code:

Code:

---

private function GenerateParamString(obj:Object):String
{
    var fullStr:String = "{";

    for (var key:String in obj)
    {
        fullStr += "'" + key + "':";

        if(obj[key] is String)
            fullStr += "'" + obj[key] + "', ";
        else
            fullStr += obj[key] + ", ";
    }

    fullStr += "}";

    return fullStr;
}

---

Okay, now what I looking to do is create a string variable that looks similar to this:
{'Model':'SomeModelNumber', 'EID':1234, 'ItemID':5, 'Size':null, 'iLength':34, 'iWidth':30}

When I execute the function, it makes it to the FOR statement, but then exits without iterating through each object. I am completely at a loss here as to why. There is nothing cryptic about the information, but not sure why it won't iterate through the object, pulling out the requested information.

Does anyone have a clue as to why it is doing this?

Your code works, so how are you creating your object?

Code:

---


var obj:Object = new Object();
obj.Model = 'SomeModelNumber';
obj.EID = 1234;
obj.ItemID = 5;
obj.Size = null;
obj.iLength = 34;
obj.iWidth = 30;

trace(GenerateParamString(obj)); // {'Model':'SomeModelNumber', 'Size':null, 'EID':1234, 'iLength':34, 'ItemID':5, 'iWidth':30}

function GenerateParamString(obj:Object):String {
        var fullStr:String = "{";
        for (var key:String in obj) {
                fullStr +=  "'" + key + "':";
                if (obj[key] is String) {
                        fullStr +=  "'" + obj[key] + "', ";
                } else {
                        fullStr +=  obj[key] + ", ";
                }
        }
// remove last comma and space
        fullStr = fullStr.substr(0,fullStr.length - 2);
        fullStr +=  "}";
        return fullStr;
}

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