Let say I got column names:

IList<string> selectedColumn = new List<string>{"Name", "City", "CreatedAt"};

Into loop from some entries I'm taking data:

foreach (Car car in rowsWithAllCar)
{
 string name = car.Name;
 string lastName = car.LastName;
 string city = car.City;
 string home = car.Home;     
 DateTime createdAt= (DateTime)car.CreatedAt;

 string[] allItems = {name, lastName, phone, city, createdAt}
}

How to check if for example value car.LastName or car.Home is not in selectedColumn ? As I don't want to add this to my allItems.

Result should be:

string[] allItems = {name, city, createdAt};

CodePudding user response：

Is this what you want to do?

IList<string> selectedColumn = new List<string> { "Name", "City", "CreatedAt" };

foreach (Car car in rowsWithAllCar)
{
    var properties = car.GetType().GetProperties();
    var allItems = properties
        .Where(p => selectedColumn.Contains(p.Name))
        .Select(p => p.GetValue(car))
        .Cast<string>()
        .ToArray();

    //string name = car.Name;
    //string lastName = car.LastName;
    //string city = car.City;
    //string home = car.Home;
    //DateTime createdAt = (DateTime)car.CreatedAt;

    //string[] allItems = { name, lastName, phone, city, createdAt };
}

I commented your code.

CodePudding user response：

Do you mean something like this?

    List<string> compareString = new List<string>();

    compareString = selectedColumn.Except(allItems);