Fix for : The 'await' operator can only be used within an async method. Consider marking this method with the 'async' modifier and changing its return type to 'Task<System.Web.Mvc.ActionResult>' ?

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How to fix below error?
The 'await' operator can only be used within an async method. Consider marking this method with the 'async' modifier and changing its return type to 'Task<system.web.mvc.actionresult>'

Am getting above error. I really don't have any idea about this. Could anyone help me on this?
My code,

C#

[HttpPost]
     public ActionResult Createaccount(Register reg)
     {
         if (ModelState.IsValid)
         {
             var client = new MongoClient();
             var db = client.GetDatabase("foo");

             var collection = db.GetCollection<Register>("people");
             var user = new Register { fname = reg.fname, lname = reg.lname, age = reg.age, pwd = reg.pwd, email = reg.email };

             await collection.InsertOneAsync(user);
             TempData["msg"] = "sucess";
             ModelState.Clear();
             return Redirect("/angular/createaccount");

         }

         return View();
     }

If anybody has any idea please share it.

Posted 9-Apr-15 2:58am

Am Gayathri

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2 solutions

Solution 1

You Need to include "async" identifier in your method signature. MSDN is your friend:
https://msdn.microsoft.com/en-us/library/hh191443.aspx[^]

Posted 9-Apr-15 3:20am

johannesnestler

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Am Gayathri 10-Apr-15 3:08am

Thanks

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anil pathak · Accepted Answer · 2015-04-09T04:29:00

// it will work if your .net framework would be 4 or 4.5 or upper

[HttpPost]
public async Task<ActionResult> Createaccount(Register reg)
{
if (ModelState.IsValid)
{
var client = new MongoClient();
var db = client.GetDatabase("foo");
var collection = db.GetCollection<register>("people");
var user = new Register { fname = reg.fname, lname = reg.lname, age = reg.age, pwd = reg.pwd, email = reg.email };

await collection.InsertOneAsync(user);
TempData["msg"] = "sucess";
ModelState.Clear();
return Redirect("/angular/createaccount");

}

return View();
}