Here Mudassar Ahmed Khan has explained with an example, how to convert (export) JSON string as PDF using JavaScript.

The JSON string will be converted into a JSON object. The data from the JSON object will be used to populate an HTML Table and later the HTML Table will be downloaded (exported) as PDF file using the pdfmake plugin in JavaScript.

Here Mudassar Ahmed Khan has explained with an example, how to use ViewState variable inside JavaScript in ASP.Net with C# and VB.Net.

ViewState is a Server Side class object which though stores the data on Client Side but it is in Encrypted Form (Hashed format) and hence cannot be read by Plain JavaScript.

Thus the ViewState variable is accessed inside JavaScript code with the help of Server Side Code Blocks in ASP.Net with C# and VB.Net.

Here Mudassar Ahmed Khan has explained with an example, how to use Page_ClientValidate function with JavaScript in ASP.Net.

Page_ClientValidate is an ASP.Net JavaScript function in-built which is used to perform ASP.Net validation explicitly i.e. invoking the ASP.Net Validators using JavaScript.

For example, in order to make the RequiredFieldValidator work with OnClientClick we need to make use of Page_ClientValidate JavaScript function in ASP.Net.

Here Mudassar Ahmed Khan has explained with an example, how to implement dynamic Table with DropDownList in HTML using JavaScript.

When the Add Button is clicked, a new Table Row with a DropDownList will be dynamically created and added to the HTML Table and when the Remove Button is clicked, the Table Row with DropDownList will be removed from the HTML Table using JavaScript.