foreach (where x => x.PROPERTY), how to set PROPERTY?

Anonymous User 2684 19 Aug 2014

I have an Object Student, I get one of the property's values by this method below

System.Reflection.PropertyInfo propValue = typeof(Student).GetProperty(s);

Let's say that s (the string I passed into the GetProperty) was the property called "StudentName". I would then like to run a search based off that property, which was stored in propValue, such as:

foreach (Student stu in formStudents.Where(x => x.propValue == "John"))

However this does not work, as x.__ only fills in with properties of Student (even though valueProp contains a valid property of Student).

How can I override this so that is reads propValue as an actual value of student, or what other method will work for me?

Thank you

Ask by Anonymous User

Updated 19 Aug 2014

1 Answers

Pravesh Singh 19 Aug 2014

Hi Jeet,

You call the .GetValue(...) method of the PropertyInfo object you got back from .GetProperty(s):

foreach (Student stu in formStudents)
{
    var value = (string)propValue.GetValue(stu);
    if (value == "John")
    {
        ....
    }
}

You can rewrite to LINQ if you want to:

var matchingStudents =
    from stu in formStudents
    let propertyValue = (string)propValue.GetValue(stu)
    where propertyValue == "John";
    select stu;
foreach (var student in matchingStudents)

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foreach (where x => x.PROPERTY), how to set PROPERTY?

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