I have function that is called in "onBegin" ajax option of ajax.actionlink

function cancelAction() { $.ajax({ data: { p: "test", z: "value" }, url: '@Url.Action("DoSomething", "TestCtlr")', type: "GET", dataType: "json", success: function (data) { if (data.do == 0) { // do something } else { alert("error message"); } }, } )} return false; }

and ajax.actionlink

@Ajax.ActionLink("Click here",//link text "Insert", // action name "Projects", // controller new { poz = item.itemID.ToString() }, // route values  new AjaxOptions() { HttpMethod = "GET", UpdateTargetID = "PrjDiv", OnBegin = "cancelAction", OnSuccess = "Initiate_Dialog" }, // ajax options new { @class = "openDialog", @id = item.idemID.ToString() } //htmlAttributes ) 

Click on ajax.actionlink should check in database (onbegin) if there's record with parameters p and z (data) and if there's none, to call jquery ui dialog (Initiate_Dialog) to insert record in database. If record in database exists, action should be canceled ("cancelAction")

Problem is with "//do something part" of code.

I tried to put 

$.ajax(this.url)

 and 

$.ajax(this.href) there, to continue with my function, but it's not working.

Can someone help me with this?