如何在通用列表C＃unity中筛选两个值？

Question

I don't know what is the better title for this question. How to get the data from a generic List using compare between two numbers in generic list ? Using Linq or whatever the effective way.

For example : I have a class database generic list :

gems.Add (new gem ("A", 0, 15, 1));
gems.Add (new gem ("B", 16, 46, 2));
gems.Add (new gem ("C", 47, 107, 3));
gems.Add (new gem ("D", 108, 228, 4));

With parameter (Code, time1, time2, gemspent)

What i want is select a gemspent or code between two number from gems generic List.

//------------------------------------------------------------------------------------------------------------------------------------------------------//

Example What i Want :

when i input 5 => this will get the "A" in List (this 5 is >= 0 && <= 15 This is inside A range)

when i input 16 => this will get the "B" in List (this 16 is >= 16 && <= 46 This inside B range)

//------------------------------------------------------------------------------------------------------------------------------------------------------//

What i have try so far :

Gem = gDatabase.gems.Where (j => {return j.time1 >= 5 && j.time2 <= 5; }).Select (j => j.gemspent).Sum();

return 0;

Gem = gDatabase.gems.FindIndex(j => {return j.time1 >= 15 && j.time2 <= 15; });

return -1;

Thanks

Dennis

Answer 1

I got my the solution myself, this just a simple mistake that i make.

Just change the code below :

 Gem = gDatabase.gems.Where (j => {return j.time1 >= 5 && j.time2 <= 5; }).Select (j => j.gemspent).Sum();

To :

 Gem = gDatabase.gems.Where (j => {return 5 >= j.time1 && 5 <= j.time2; }).Select (j => j.gemspent).Sum();

and

Just change the code below :

 Gem = gDatabase.gems.FindIndex(j => {return j.time1 >= 15 && j.time2 <= 15; });

To :

 Gem = gDatabase.gems.FindIndex(j => {return 5 >= j.time1 && 5 <= j.time2; });

That fix it.