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ID: csharp-best-practices/tostring-not-return-null
Language: C#
Severity: Warning
Category: Error Prone
The method ToString()
should always return a value (for example, a string) and never return null
. Instead of returning null
, return string.Empty
, which is an empty string.
class MyClass {
public override string ToString()
{
if(foo) {
return null;
}
return null;
}
}
class MyClass {
public override string ToString()
{
return null;
}
}
class MyClass {
public override string ToString()
{
return string.Empty;;
}
}
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