CODEWITHSUNDEEP
c#listextension-methods
kalenderdose
kalenderdose

Reputation: 69

Extension in List limited to one Type

is it possible to do an extension for a specific type of list?

Like a calculate function only for List<int>?

I tried something like 

public static void addTag<TagInfos>(this List<TagInfos> list,
zeiterfassungsdatensatz ds){
 //some code
}

this. in this example i tried to create a extension addTag(zeiterfassungsdatensatz) to all List<TagInfos>. This function is usable at all my Lists. But i dont want this.

Is it possible?

Greets

Upvotes: 1

Views: 43

Answers (1)

Tim Schmelter
Tim Schmelter

Reputation: 460098

Then you don't need a generic extension:

public static void addTag(this List<TagInfos> list, zeiterfassungsdatensatz ds) 
{ 
    // ...
}

But you could also use a constraint:

public static void addTag<T>(this List<T> list, zeiterfassungsdatensatz ds) 
    where T: TagInfos
{ 

}

Upvotes: 1

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