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Chained Exceptions in C#
Chained Exceptions are a chain of try-catch statements that handle exceptions. To create a chain of exceptions i.e. chained exceptions −
Set the first try-catch −
Example
static void Main(string[] args) {
try {
One();
} catch (Exception e) {
Console.WriteLine(e);
}
}Now try-catch under method One() −
Example
static void One() {
try {
Two();
} catch (Exception e) {
throw new Exception("First exception!", e);
}
}The method Two() also continues chained exception.
Example
static void Two() {
try {
Three();
} catch (Exception e) {
throw new Exception("Second Exception!", e);
}
}Now the next method.
Example
static void Three() {
try {
Last();
} catch (Exception e) {
throw new Exception("Third Exception!", e);
}
}The takes us to the last.
Example
static void Last() {
throw new Exception("Last exception!");
}On running the above, the exceptions would be handled like this −
System.Exception: First exception! ---< System.Exception: Middle Exception! ---< System.Exception: Last exception! at Demo.Two () [0x00000] in <199744cb72714131b4f5995ddd1a021f>:0 --- End of inner exception stack trace --- at Demo.Two () [0x00016] in <199744cb72714131b4f5995ddd1a021f>:0 at Demo.One () [0x00000] in <199744cb72714131b4f5995ddd1a021f>:0 --- End of inner exception stack trace --- at Demo.One () [0x00016] in <199744cb72714131b4f5995ddd1a021f>:0 at Demo.Main (System.String[] args) [0x00000] in <199744cb72714131b4f5995ddd1a021f>:0
Updated on: 22-Jun-2020
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