LINQ:如何在LINQ查询中添加多个变量

我有一个名为List的控制器动作，它接受以下参数

int filter, int Field, int Operator, string QueryValue

public enum Filter
{
    ActiveEmployee,
    OnHoldEmployee,
    InactiveEmployee
}
public enum Field
{
    Name,
    ABRAID,
    JobTitle,
    LocationCode,
    Department
}
public enum Operator
{
    Contains,
    StartWith,
    EndWith,
    EqualTo
}

可能的情况下:

Select employee where Name Equals "Value"
Select employee where Name EndWith with "Value"
Select employee where Name StartWith with "Value"
Select employee where JobTitle Contains "Value"
Select employee where Department Equals "Value"

我正在使用LINQ来查询数据库

Employees = from p in DB.Employees
            where p.AWCID.Contains(queryvalue)
            select p;

但这意味着我必须编写嵌套的切换案例来覆盖所有情况。它有180多行代码来覆盖3个变量，

我不太清楚LINQ语法是否支持多值。

任何想法吗?谢谢。

public IQueryable<Employee> GetEmployees(queryType, value)
{
    var Employees = from p in DB.Employees
            select p;
    // could use a switch statement here as well
    if (queryType == "contains")
        return Employees.where(e => e.contains(value));
    else if...
}