How can I pass a parameter in Action?

private void Include(IList<string> includes, Action action)
{
if (includes != null)
{
foreach (var include in includes)
action(<add include here>);
}
}

I want to call it like that

this.Include(includes, _context.Cars.Include(<NEED TO PASS each include to here>));

The idea is pass each include to the method.

202004

小开

最佳答案

If you know what parameter you want to pass, take a Action<T> for the type. Example:

void LoopMethod (Action<int> code, int count) {
for (int i = 0; i < count; i++) {
code(i);
}
}

If you want the parameter to be passed to your method, make the method generic:

void LoopMethod<T> (Action<T> code, int count, T paramater) {
for (int i = 0; i < count; i++) {
code(paramater);
}
}

And the caller code:

Action<string> s = Console.WriteLine;
LoopMethod(s, 10, "Hello World");

Update. Your code should look like:

private void Include(IList<string> includes, Action<string> action)
{
if (includes != null)
{
foreach (var include in includes)
action(include);
}
}


public void test()
{
Action<string> dg = (s) => {
_context.Cars.Include(s);
};
this.Include(includes, dg);
}