abnormal Application termination

Example:

long j;
j = Int32.MaxValue;
Random rnd = new Random(10000);
j = j * rnd.Next();
MessageBox.Show("Converted " + j);

because if you multiple 2 Int32 value then it may be Int64 value, which is long ;)

Please vote and Accept Answer if it Helped.

I don't think the error you are getting is from the Int32 overflow. In fact the message you posted "Out of range value of Int32" does not even seem to be a .NET exception message. Perhaps you are trying to insert this value into a database? And maybe it's the DB that's throwing an exception with this message.

You may need to do some digging... If you try this test code block as a windows console app you'll see that what is happening in your test code is that the value is wrapping. i.e. When it is invalid, it wraps as a negative value. That means you are doing something different in the code that is failing as opposed to the code that works as this does.

class Program
    {
        static void Main(string[] args)
        {
            int j = Int32.MaxValue;
            int r = 0;
            int i = 0;
            Random rnd = new Random(10000);
            try
            {
                r = rnd.Next();
                for (i = 0; i < 10; i++)
                {
                    Console.Write( 
                        String.Format( "i={0}, j={1}, r={2}:   
                            result=", i, j, r ));
                    j *= r;
                    Console.WriteLine( j );
                }
            }
            catch( Exception err )
            {
                Console.WriteLine( 
                    String.Format( "Error( i={0}, j={1}, r={2} ): 
                        {3}", i, j, r, err.Message ));
            }
            Console.WriteLine( string.Empty );
            Console.WriteLine( "Press Any Key To Continue");
            Console.ReadKey();
        }
    }