数据插入使用输入输出存储过程

I am creating a web application using ASP.net C#. I have a booking form and I need to insert data into a table using a Stored Procedure. The table has several columns, out of which second column is a computed column. The Stored Procedure is set up to insert the data and fetch the value from the second column after insert. Below is the code for Stored Procedure:I am creating a web application using ASP.net C