Working with Java Script in code behind

There are two ways to add a java script function in to a Controller. But those behaviors are different to each other.

1. Run in ScriptManager   

          This is the best way to implement the java_script into code behind of asp.net. This can run when we want functionality.

 

2. Add attributes
            This is not a perfect way. When we add to button, which trigger, after the button click. That mean is you must click twice that button and you can't change that functionality in direct.