How do I update a model value in JavaScript in a Razor view?

Question

I want to update model value in JavaScript as below but it is not working.

function updatePostID(val)
{
    @Model.addcomment.PostID = val;
}

Answer 1

You could use jQuery and an Ajax call to post the specific update back to your server with Javascript.

It would look something like this:

function updatePostID(val, comment)
{

    var args = {};
    args.PostID = val;
    args.Comment = comment;

    $.ajax({
     type: "POST",
     url: controllerActionMethodUrlHere,
     contentType: "application/json; charset=utf-8",
     data: args,
     dataType: "json",
     success: function(msg) 
     {
        // Something afterwards here

     }
    });

}