.net naming convention: is there a semantic difference between length and graph?

Question

To get the number of subelements in dotnet, sometimes I need to set the Lenght property, sometimes I need to set the Count property.

Is there any reason for the difference?

Example:

   int[] a; if (a.Length == 0) ....
   IList<int> b; if (b.Count == 0) ....

Note The difference between IEnumerable Count () and Length sounds similar, but does not correspond to the semantics between length and graph.

Answer 1

There is no semantic difference. This is just a refinement of the structure with which we must deal.

Answer 2

I cannot quote the source, but I think .Length is a fixed value and can change .Count.

, .Length.

( ) List, .Count.

, .Length:

.Count .Count():

• , ( )

Answer 3

, , , . , , , , Count.

Answer 4

Length - , Count an ICollection one Count() IEnumerable, .

.

: IEnumerable Count() ( ) , . .

Answer 5

, Framework Design Guidelines ( ). , , , . , .NET, .NET API Java, quirks.