Two catch handlers cannot have the same type. code example

Example 1: c# multiple catch exceptions

// if C# v6+, you can use exception filters
catch (Exception ex) when (ex is FormatException || ex is OverflowException)
{
  // do something
}

Example 2: two exceptions same catch c#

try
{
// Code
}
catch (Exception ex) when (ex is ArbitraryType1 || ex is ArbitraryType2)
{
  throw;
}