Tips for transferring variables in Ajax.BeginForm

Hi there! I am new to C # and I have a question about passing a string variable from C# to a function called PostFailure in JavaScript. The issue I'm facing is that the function seems to be returning some object and I am not sure where it is coming from. Here's a snippet of my code:

Index.cshtml;

 @using (Ajax.BeginForm("Login", "Account", new AjaxOptions {
    HttpMethod = "post", OnBegin = "PostOnBegin", OnFailure =
    "PostFailure", OnSuccess = "PostSuccess", OnComplete =
    "PostOnComplete" })) {...

anylib.js

 function PostFailure(message){

 }

The solution I am thinking of involves modifying the code like this:

Index.cshtml;

 @using (Ajax.BeginForm("Login", "Account", new
 AjaxOptions { HttpMethod = "post", OnBegin = "PostOnBegin", OnFailure
 = "PostFailure(message,'hello')", OnSuccess
 = "PostSuccess", OnComplete = "PostOnComplete" }))

anylib.js

function PostFailure(message,x){

 }

Answer №1

To implement this functionality, you need to utilize the OnSuccess event handler method.

 function HandleSuccessData(ajaxResponse) {
     //ajaxResponse contains the JSON data returned from the server using Json(myModel);
     console.log(ajaxResponse.MyReturnField1);
 }

In case of an error, the OnFailure handler will be triggered for any status other than 200 (OK). The standard message would typically be "Internal Error Occurred on the server" for a 500 status code. You should also check for specialized objects that may be returned for non-200 codes, as the xhr result data could vary in such cases.

function HandleError(exceptionObject) {
     console.log(exceptionObject);
     console.log(exceptionObject.statusText);
     console.log(exceptionObject.MyUserFiendlyErrorMessage);
     $("#divError").html(exceptionObject.ClientExceptionPartiaViewHTML);   
}

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