C# enums as function parameters?
Solution 1
This!
public void Foo(Enum e)
{
var names = Enum.GetNames(e.GetType());
foreach (var name in names)
{
// do something!
}
}
EDIT: My bad, you did say iterate.
Note: I know I could just do the GetNames() call in my foreach statement, but I prefer to assign that type of thing to a method call first, as it's handy for debugging.
Solution 2
You mean something like Enum.GetNames?
Solution 3
Enum.GetValues Enum.GetNames
so something like...
foreach(e1 value in Enum.GetValues(typeof(e1)))
Solution 4
You will have trouble if you try passing an enum
directly to myFunc
, as in the following example:
enum e1 {something, other};
myFunc(e1); // Syntax error: "e1 is a type, but is being used like a variable"
Solution 5
Use the Enum.GetNames( typeof(e) ) method, this will return an array of strings with the names.
You can also use Enum.GetValues to obtain the counterpart values.
Edit -Whoops - if you are passing the parameter as Enum, you will need to use e.GetType() instead of typeof() which you would use if you had passed the parameter in as the actual Enum type name.
Comments
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TK. almost 2 years
Can you pass a standard c# enum as a parameter?
For example:
enum e1 { //... } enum e2 { //... } public void test() { myFunc( e1 ); myFunc( e2 ); } public void myFunc( Enum e ) { // Iterate through all the values in e }
By doing this I hope to retrieve all the names within any given enum. What would the Iteration code look like?
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tvanfosson over 15 yearsI'd probably assign the result to something. :-)
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Daniel Schaffer over 15 yearsyeah whups... sorry, I got excited :D
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iMortalitySX over 11 yearsThat doesn't explain anything, in fact I have no issue passing an enum to a function in the way you describe...
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Adam Parkin over 9 years
Error: 'e1' is a 'type' but is used like a 'variable'