Generic List Method Problem
I'm getting an error when I try to create a method with the following signature:
public List<T> CreateList(DataSet dataset)
Error 1 The type or namespace name 'T' could not be found (are you missing a using directive or an assembly reference?)
Does anyone know what I'm doing wrong开发者_C百科?
Thanks in advance!
T
must be declared either at the method level:
public List<T> CreateList<T>(DataSet dataset)
or at the containing class level:
public class Foo<T>
{
public List<T> CreateList(DataSet dataset)
{
...
}
}
But be careful to not declare it at both places:
// Don't do this
public class Foo<T>
{
public List<T> CreateList<T>(DataSet dataset)
{
...
}
}
Since you're defining a generic method, the type placeholder should be part of the method declaration, not only of its return type. Try:
public List<T> CreateList<T>(DataSet dataset)
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