Call same method both in client-side and server-side

Question

I have a complex calculation in my page and I want to perform it in both client-side and server-side. For easier maintenance, I prefer to write one function and call it in client and server.

So I am searching for a method that I could call a javascript function in C# code behind or something else that could satisfy the demand. I thought about a service based function that I call it in client with ajax and in server as a simple function; however, it is obvious it would slightly work slowly in client because it should go to the server and come back.

Any idea?

Answer 1

As i stated in the comment, i can think of three options you have here.

• Use an ajax call to get the result from the controller (server-side calculation only).
• Use a postback, which pretty much does the same as the option above.
• Use an Javascript interpreter like Jint, to execute the same piece of Javascript on the server side.

I think the first two are prefered, but the third option might be a solution if you really don't to do a call or postback. This will cause the client-side code to calculate it's own result, while server-side is able to do the same. Same code, Same result, No call from client-side to server-side.

A populair Javascript interpreter for .NET might be Jint for example, which has proven it's stability and performance. You might want to check it out.

Answer 2

You either do calculations on server and send them back to client to complete the rest on the client, or do an ajax call (show a loading panel on the client) and return for the callback with the results.

If you can provide more details, you will get better help.