So i have a ComboBox in a reusable partial view. When i try to use getAddionalData and pass more parameters to the controller, is there a way i can pass the input of the combobox to the function? I can't directly call it in the getAddionalData because there may be multiple and I won't know the exact id of which is calling the function. I tried to use the 'this' qualifier in the function but that only gives me the url of the read. For instance, on the dataBound function, i can call this.open() and it'll open my combobox. I can't use that here. Any idea?