26 lines
748 B
Plaintext
26 lines
748 B
Plaintext
There's no point in chaining multiple ``++OrderBy++`` calls in a LINQ; only the last one will be reflected in the result because each subsequent call completely reorders the list. Thus, calling ``++OrderBy++`` multiple times is a performance issue as well, because all of the sorting will be executed, but only the result of the last sort will be kept.
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Instead, use ``++ThenBy++`` for each call after the first.
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== Noncompliant Code Example
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----
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var x = personList
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.OrderBy(person => person.Age)
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.OrderBy(person => person.Name) // Noncompliant
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.ToList(); // x is sorted by Name, not sub-sorted
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----
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== Compliant Solution
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----
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var x = personList
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.OrderBy(person => person.Age)
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.ThenBy(person => person.Name)
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.ToList();
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----
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