how to get value of properties with reflection in List?

Question

            List<T> Data = new List<T>();
            var type = typeof(T).GetProperties();

            for (int i = 0; i < Data.Count; i++)
            {
                foreach (var item in type)
                {
                    if (GetTypeOfProp(item) == 1)
                    {
                        worksheet.Range[GetCol(Col) + Row].Text = item.Name;
                        worksheet.Range[GetCol(Col) + (Row + 1)].Text = (item.GetValue(Data[i], null) ?? "").ToString();
                        Col = Col + 1;
                    }
                    else if (GetTypeOfProp(item) == 2)
                    {
                        int OldCol = Col;
                        foreach (var li in item.PropertyType.GetProperties())
                        {
                            worksheet.Range[GetCol(Col) + (Row + 1)].Text = li.Name;

                            var value = li.GetValue(item, null);     // How Can I Get this Value ?

                            Col = Col + 1;
                            MaxRecOfRow = 1;
                        }

                        worksheet.Range[$"{GetCol(OldCol) + Row}:{GetCol(Col - 1) + Row}"].Merge();
                        worksheet.Range[$"{GetCol(OldCol) + Row}:{GetCol(Col - 1) + Row}"].Text = item.Name;

                    }
                    else if (GetTypeOfProp(item) == 3)
                    {
                        worksheet.Range[GetCol(Col) + Row].Text = item.Name;
                        worksheet.Range[GetCol(Col) + (Row + 1)].Text = "";
                        Col = Col + 1;
                        MaxRecOfRow = 1;
                    }
                }
                Row++;
             }

I can get value with reflection in c# with root but this question is get value with (model in model) How Can I Get this Value ? var value = li.GetValue(item, null);

Does this help with your problem? https://stackoverflow.com/questions/1954746/using-reflection-in-c-sharp-to-get-properties-of-a-nested-object — GH DevOps, Jul 20 '22 at 16:14

score 0 · Answer 1 · edited Oct 10 '22 at 16:09

0

You can get the values of any class instance like this:

var myClass = new MyClass { Id = 100 };

Get the type of the class using .GetType(). On the type you can retrieve all the properties. It returns an array of PropertyInfo.

var properties = myClass.GetType().GetProperties();

Iterate over the array and then you can get the value using the .GetValue(obj?) handing it the object you used to get the type and properties from:

foreach (var prop in properties)
{
    object val = prop.GetValue(myClass);

    Console.WriteLine(val);
}

public class MyClass
{
    public int Id { get; set; }
}

edited Oct 10 '22 at 16:09

marc_s

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answered Jul 20 '22 at 16:29

Paul Sinnema

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this code is for 1 model – mohammad asadi Jul 20 '22 at 16:48
i have 5 model in 1 model – mohammad asadi Jul 20 '22 at 16:48
You can make the code generic by using a generic method like so `GetValue(...)`. Than get the type from `T` like so `Type type = typeof(T)`. The rest is the same. – Paul Sinnema Jul 29 '22 at 20:09
Did my answer help you? – Paul Sinnema Aug 05 '22 at 14:22

how to get value of properties with reflection in List?

1 Answers1