First you have use Sweet alert Javas Script from below address: 
https://sweetalert.js.org

This code for ASP.Net C#

ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "MyFun1", "swal('Good job!', 'Your HSC Data Submitted!', 'success').then((value) => {window.location = 'Home.aspx';});", true);



This Code for ASP.NET MVC

<pre class="cscode"><code>swal(<span class="str">"Good job!"</span>, <span class="str">"Your order has been confirmed with success :)"</span>, <span class="str">"success"</span>).then((value) =&gt; {
    window.location = <span class="str">"/Home/Index"</span>;
});</code></pre>