Populate (Bind) WebGrid using dynamic DataTable (DataSet) in ASP.Net MVC

Here Mudassar Ahmed Khan has explained with an example, how to bind (populate) WebGrid using dynamic DataTable (DataSet) in ASP.Net MVC Razor. Inside the Controller, first a DataTable object is created with some dynamic Columns and then records are added to the DataTable. Finally the DataTable is added to a DataSet which is later used to populate the WebGrid in ASP.Net MVC Razor.