Question

I’ve got some jquery that’ll run ajax that runs a controller action that returns a partial view. In some cases i want to display one of several error messages (controlled by the controller), rather than replacing a DOM element with the result.

How do I achieve this?

Currently I have this:

$.ajax({
    type: "POST",
    cache: false,
    url: '<%= Url.Action("AddPostcodeToTerritory", "Territories") %>'
}).done(function(data) {
    $("#SelectedTerritoryPostcodeRows").html(data);
});

I have the element SelectedTerritoryPostcodeRows which normally gets the information, but I also want the controller to be able to give some error message which I want to display somewhere else.

Answer 1

Your not returning any errors, so you need some identifier in your response so your script knows what to do. Perhaps another element called errMsg, and a new if..then to handle it in this script will sort it.

    if (data.errMSG) {
     ..show error somewhere
    }
    else {
      $("#SelectedTerritoryPostcodeRows").html(data);
    }