The main purpose of the catch block is to handle the exception raised in the try block. This block is only going to execute when the exception is raised in the program. In C#, You can use more than one catch block with the try block. Generally, multiple catch block is used to handle different types of exceptions means each catch block is used to handle different type of exception. If you use multiple catch blocks for the same type of exception, then it will give you a compile-time error because C# does not allow you to use multiple catch block for the same type of exception. A catch block is always preceded by the try block.
In general, the catch block is checked within the order in which they have occurred in the program. If the given type of exception is matched with the first catch block, then the first catch block executes and the remaining of the catch blocks are ignored. And if the starting catch block is not suitable for the exception type, then the compiler searches for the next catch block.
