Multiple forms in ASP.NET MVC

Question

Context
Let`s say i have:
In layout Site.Master:

Answer 1

If you have two simple forms, you can use this aproach:

You create two different partial views.

@model CustomerInfoModel
@using (Ajax.BeginForm("CustomerInfo", "Customer", new AjaxOptions { HttpMethod = "Post", OnBegin = "InfoLoading", OnComplete = "InfoCompleted" }, new { id = "info", @class = "form-horizontal" }))
    {
    
    
    Save
    }

and

@model CustomerPasswordChangeModel
@using (Ajax.BeginForm("CustomerPasswordChange", "Customer", new AjaxOptions { HttpMethod = "Post", OnBegin = "InfoLoading", OnComplete = "InfoCompleted" }, new { id = "change", @class = "form-horizontal" }))
{


Save
}

In your parent view,

@Html.Partial("CustomerInfo", Model.CustomerInfo)

and

@Html.Partial("CustomerPasswordChange", Model.CustomerPasswordChange)

In Controller:

    [HttpPost]
    public ActionResult CustomerInfo([Bind(Include = "Name,Email")] CustomerInfoModel model)
    {
        if (ModelState.IsValid)
            return new Json(new { success=true, message="Updated.", errors=null);

// do you logic

        return new Json(new { success=false, message="", errors=getHtmlContent(ModelState.Values.SelectMany(v => v.Errors).ToList(), "ModelError"));
    }

    [HttpPost]
    public ActionResult CustomerPasswordChange([Bind(Include = "OldPassword,NewPassword")] CustomerPasswordChangeModel model)
    {
        if (ModelState.IsValid)
            return new Json(new { success=true, message="Updated.", errors=null);

// do you logic

        return new Json(new { success=false, message="", errors=getHtmlContent(ModelState.Values.SelectMany(v => v.Errors).ToList(), "ModelError"));
    }

This will do what you want to do.

Note: getHtmlContent method is just generating an error message to be displayed on page. Nothing so special. I may share it if required.