B4J Question need advice b4j webapp

[ilan]

hi

i am working a very big project with b4j and jserver.

i am creating dynamically html elements and update the inner HTML of the relevant div in my webpage.

i am using for that specific page a WebSocket now my question is this. i need to trigger several events for some dynamically created elements like _click, _changed ...

i cannot add the click event for the whole div and use the target element because it will break other features in my app so what i do now is adding js code dynamically to those elements like a click listener with ws.Eval() function and a callback to a b4j event.

is this a good approach? is there a better way to do that?

example:

Dim js As String = $"
          $(".menuitem").click(function() {
              let itemid = jQuery(this).attr("itemid");
              let itemtype = jQuery(this).attr("itemtype");
              b4j_raiseEvent("remove_Item",{id:itemid,type:itemtype});
          });
        "$
        ws.Eval(js,Null)

b4j event:

Sub remove_Item(Params As Map)
    Log(Params.Get("id"))
    Log(Params.Get("type"))
End Sub

everything works fine, i am just wondering if this is the right approach or maybe i should do it in a different way?


thanx

 

[Erel]

It can be simplified a bit by calling b4a_addEvent (see b4j_ws.js), though your code looks fine.

 

[ilan]

It can be simplified a bit by calling b4a_addEvent (see b4j_ws.js), though your code looks fine.

thanx erel, so you advice changing addEvent then raiseEvent.

thank you