We can send data from one page to other page by appending that data to the URL
For Example:
To send ProductId information from page to other
Order.aspx?ProductId=100
Use “&” symbol to separate multiple query string values, If we want to send ProductId and ProductName info
Order.aspx? ProductId=100 & ProductName=’xxxx’
We can send Query strings from server side code using Response.Redirect
For Ex:
Response.Redirect(“Order.aspx?ProductId=100 & ProductName = ’xxxx’”);