Problem with eventhandler and this

[Former Member]

Hi

I got a problem with "this" in an eventhandler, when i create a new entity using the odata.v2 model.

I wan´t to call a method on another controller, when the update is successful.

oModel.create('/data', oEntry, {success: this._oListController.createOk});

The this._oListController.createOk method is called, but in the method "this" point to the window object. How can i change the reference to another type?

Kind regards,

Kim

[former_member182372 · Accepted solution]

oModel.create('/data', oEntry, {success: $.proxy(this._oListController.createOk, this._oListController.) } );

[Former Member · Accepted solution]

Hi Maksim

That works - thanks a lot!

Kind regards,

Kim

[former_member183518]

https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_objects/Function/bind

There are many ways to do it. Adding to the answers above, you can make use of javascript's bind method to pass *this* context to the function.

{success:this._oListController.createOk.bind(this)};

[saivellanki]

Hi Kim,

Did you try like this as well?

var that = this._oListController;
oModel.create('/data', oEntry, {success: function(){
  that.createOk;
  }});

Regards,

Sai Vellanki.

[former_member182862]

Hi Kim

Have you try this?

{success: [this._oListController.createOk, this._oListController]}

Thanks

-D

[Former Member]

Hi Dennis

Thanks for your reply, but it doesn´t work. I get this error:

Uncaught TypeError: fnSuccess is not a function datajs-dbg.js:1637

fnSuccess is the reference to my callback method in the create method of the odata model:

fnSuccess  = mParameters.success;

Kind regards,

Kim

[former_member182372]

Dennis, i think it only works in js view for controls events, not the model