如何从.cshtml视图显示警报消息 - asp.net mvc

Question

I have two action result one sending a string and another loading the view

public ActionResult getTheString()
{
   string message = //doing some thing ;
  myModel myModel = new myModel();
  myModel.property1 = message ;

    return loadView(myModel);
}

public ActionResult loadView(myModel model)

{
   return view (model);
}

loadView.cshtml

@model project.Models.myModel 
@{
  if(Model.property1 !=" ")
     {what to do to show it as alert }
}

Here I am getting the prperty like model.property1 if it has some thing show the alert with that string and then load, if message does not contain anything then simply load.

Not permitted to use TempData , ViewBag , ViewData .

Not permitted to use Script tag in view . it has to be in a seperate js file

Answer 1

You could check with some simple Razor syntax

@if(!string.IsNullOrEmpty(Model.Property1)) {
    <script>alert("@Model.Property1");</script>
}

Answer 2

you can use javascript and give alert once page is loaded.

<script type="text/javascript">

window.load = function() {
    @if(!string.IsNullOrEmpty(Model.Property1)) {
        alert("blah blah");
    }
}    
</script>