关于c＃：我想计算通用列表中特定组的出现次数

I want to count number of occurance of specific group in Generic List

本问题已经有最佳答案，请猛点这里访问。

我有两个班。

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public class Employee
{
public string FirstName { get; set; }
public string LastName { get; set; }
}

我有以上课程的资料，请在下面核对。

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List<Employee> lstEmployee = new List<Employee>();
lstEmployee.Add(new Employee() { FirstName ="Ronak", LastName ="Patel" });
lstEmployee.Add(new Employee() { FirstName ="Ronak", LastName ="Patel" });
lstEmployee.Add(new Employee() { FirstName ="Sanjay", LastName ="Patel" });
lstEmployee.Add(new Employee() { FirstName ="Ronak", LastName ="Patel" });
lstEmployee.Add(new Employee() { FirstName ="Sanjay", LastName ="Patel" });
lstEmployee.Add(new Employee() { FirstName ="Ronak", LastName ="Patel" });
lstEmployee.Add(new Employee() { FirstName ="Mohan", LastName ="Patel" });

我希望在泛型列表上方筛选并绑定到下面的结构类中。

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class CountEmployeeName
{
public string FirstName { get; set; }
public int CountFirstName { get; set; }
}

我要根据上面的数据绑定CountEmployeeName类对象，如下面的示例。

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FirstName CountFirstName
Ronak 4 (Ronak is 4 time in above Employee class list)
Sanjay 2 (Sanjay is 4 time in above Employee class list)
Mohan 1 (Mohan is 4 time in above Employee class list)

我想根据员工列表的给定数据绑定上面输出的CountEmployeeName类的通用列表。