Answer: When you use throw ex to throw exception, it will update stack trace but in throw it will not update stack trace.
Example:
Class cls
{
public static void Main(string[] args)
{
try
{
function3();
Console.WriteLine("Catch Ex"); Console.ReadLine();
}
catch (Exception ex)
{
Console.WriteLine(ex.StackTrace); Console.ReadLine();
}
}
public static void function3()
{
try
{
function2();
}
catch (Exception ex)
{
throw;
}
}
public static void function2()
{
try
{
function1();
}
catch (Exception ex)
{
throw;
}
}
public static void function1()
{
try
{
int i = 0;
int j = 2 / i;
}
catch (DivideByZeroException ex)
{
throw;
}
}
}
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