While trying to convert Base64 string in c#, getting following error:
System.FormatException: The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.
My Intent is to save diagram image on server, any other alternatives to achieve the functionality are also welcomed.
OK, so after passing only the Base64string, still getting the same error:
System.FormatException: The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.
Here is the code:
var base64String = “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…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”;
byte[] bytes = Convert.FromBase64String(base64String);