Databinding with element count

[Former Member]

Hi,

I got a list Item:

itm = new sap.m.ObjectListItem({

  title : "Ansprechpartner",

  icon:sap.ui.core.IconPool.getIconURI("employee"),

  type: "Navigation",

  unread : true,

  counter: 3,

  press: showContacts

  });

  menuList.addItem(itm);

The List Item should be bind to a model.

Instead of having hardcoded the value "3" I want do have a counter showing the elements under /customer/0/contacts

I there a syntax, how I can do a count, e.g.

counter: {contacts@count},

Thanks

Jens

[former_member182372]

var actionListItem = new sap.m.ObjectListItem("action",

{

  title : "{name}",

  icon:sap.ui.core.IconPool.getIconURI("employee"),

  type: "Navigation",

  unread : true,

  counter: "{counter}"

});

$.each(data.list, function(i, item) {

  Object.defineProperty(data.list[i], "counter", { get : function(){

    return this.contacts.length; } } );

});

[Former Member]

Hello Maksim,

thanks. Looks good.

The "data" element I have to extract from the oModdel with getData()?

Jens

[former_member182372]

Well, yeah, something like:

var data = { customer : [ { ... , contacts : [{}, {}, ....] }, {}, ...] };

[Former Member]

Hi Jens,

            For this requirement you will have to implement inlinecount to the entity set contacts on the odata side. The Contact Entity Type must also have ContactsCount field to which you will set the inlinecount.

Then you can directly bind counter : "{ContactsCount}". It will show the count.

Regards,

             Pruthvi.