Here Mudassar Ahmed Khan has explained with an example, how to set Session variable in JavaScript in ASP.Net using C# and VB.Net.

JavaScript is a Client Side language and hence directly it is not possible to set Session variable in JavaScript.

Thus, the solution is to make an AJAX call using XmlHttpRequest (XHR) and pass the value of JavaScript variable to a WebMethod and inside the WebMethod the value will be set in Session variable in ASP.Net using C# and VB.Net.

Here Mudassar Ahmed Khan has explained with an example, how to dynamically populate Year in DropDownList i.e. HTML SELECT element using JavaScript.

Inside the window.onload event handler, the DropDownList i.e. HTML SELECT element will be referenced and using a For Loop, one by one Year values will be appended to the DropDownList using JavaScript.

Here Mudassar Ahmed Khan has explained with an example, how to redirect (go) back to Previous Page without Refresh using JavaScript.

It is NOT possible to redirect (go) back to Previous Page without refreshing as whenever Page is redirected there will always be a Page reload in browser i.e. old page will be removed and the new Page from Browser History will be loaded in Browser.

Here Mudassar Ahmed Khan has explained with an example, how to redirect to Previous Page using JavaScript.

The HTML Anchor Link will be assigned an OnClick event handler and when clicked, it will be redirected to the Previous Page using history.back function in JavaScript.