CkWebException

What CkWeb throws — only when asked.

Raised by any CkWeb method called with throwIfInvalid: true when neither the value nor the fallback can be used. Never thrown otherwise: by default those methods answer "" or false instead. Sealed, and derived from CkException.

The message names the method, shows the value with its type, says what it was meant to be and why it failed:

CkWeb.Url: cannot use "ftp://x.com" (String) as a web address — not an http or https URL.

Properties

Property	Type	What it holds
Expected	string	What the value was meant to be — "a web address".
Input	object?	From CkException: the value that failed, untouched.
Reason	string	From CkException: why, in a few words.

Quick look

using SafeCoder.CommonKit;
using SafeCoder.CommonKit.Exceptions;

try
{
    CkWeb.Url(
        input: "ftp://x.com",
        throwIfInvalid: true
    );
}
catch (CkWebException error)
{
    Console.WriteLine(error.Reason);    // -> "not an http or https URL"
    Console.WriteLine(error.Expected);  // -> "a web address"
}