| TypeName | AvoidTypeNamesInParameters |
| CheckId | CA1720 |
| Category | Microsoft.Naming |
| Breaking Change | Breaking |
The name of a parameter in an externally visible member contains a type name.
Each concatenated word in the parameter name is checked against the following type names, in a case-insensitive manner:
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bool
-
boolean
-
byte
-
char
-
double
-
float
-
float32
-
float64
-
int
-
int8
-
int16
-
int32
-
int64
-
integer
-
long
-
object
-
sbyte
-
short
-
single
-
string
-
uint
-
uint16
-
uint32
-
uint64
-
ulong
-
unsigned
-
ushort
-
wchar
Parameter names are better used to convey a parameter's meaning than to describe a parameter's type, which is expected to be provided by development tools. If a type name must be used, use a universal type name instead of a language-specific type name. For example, instead of the C# type name 'ushort', use the universal type name, UInt16.
Select a parameter name that does not contain one of the previously listed type names.
Occasional use of type-based parameter names is appropriate, in addition to using words with alternative English meanings such as short and long. Exclude a warning from this rule in these limited cases.
Long acronyms should be pascal-cased
Short acronyms should be uppercase
Identifiers should be cased correctly
Identifiers should differ by more than case
Identifiers should not contain underscores
Parameter names should not match member names
Avoid language specific type names in parameters