Not working my Sweet Alert

Question

I am using sweet alert but still my alert is not working.

 

This is my View

 

@model SSC_MVC.Models.Department

@{
// ViewBag.Title = "Create";

ViewBag.Title = Model.dpt_id == null ? "Create" : "Edit";
}
<script src="~/Scripts/jquery-1.12.4.min.js">

</script>

<script src="~/Scripts/jquery.validate.min.js"></script>
<script src="~/Scripts/jquery.validate.unobtrusive.min.js"></script>

<link href="~/bootstrap-3.3.6-dist/css/bootstrap.min.css" rel="stylesheet" />
<script src="~/bootstrap-3.3.6-dist/js/bootstrap.js"></script>

<script src="https://lipis.github.io/bootstrap-sweetalert/lib/sweet-alert.js"></script>
<link href="~/Content/sweetalert/sweet-alert.css" rel="stylesheet" />

<script type="text/javascript">

function validateData()
{
debugger;

if ($("#dpt_nam").val() == "")
{
swal("Please enter OrderCode !");
return false;
} else
{
return true;
}
}
</script>
<h2>Create</h2>
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()

<div class="col-md-12 form-horizontal">
<h4>Department</h4>
<hr />
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
@Html.HiddenFor(model => model.dpt_id)

<div class="form-group">
<div class="col-md-2">
@Html.Label("Name", htmlAttributes: new { @class = "control-label col-md-2 " })
</div>
<div class="col-md-8">
@Html.EditorFor(model => model.dpt_nam, new { htmlAttributes = new { @class = "form-control validateData" } })
@Html.ValidationMessageFor(model => model.dpt_nam, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
@if (Model.dpt_id == null)
{
<input type="submit" onclick="Validate(this, event);" value="Create" class="btn btn-primary" />
}
else
{
<input type="submit" value="Edit" class="btn btn-success" />
}
</div>
</div>
</div>
}

<div>
@Html.ActionLink("Back to List", "Index")
</div>

@*@section Scripts {
@Scripts.Render("~/bundles/jqueryval")
}*@

This is my Model:

public class Department
{
public string dpt_id { get; set; }

[Required(ErrorMessage = "Please enter Department Name")]
public string dpt_nam { get; set; }
public string dpt_typ { get; set; }
}