Update a class property using reflection and the name of the property as a string

Question

I have a sample class

public class sampleClass
{
    public string givenName { get; set; }
    public string familyName { get; set; }
}

and a set of values for that class contained in IDictionary<string, object> dataModel. I can use reflection to iterate through the dataModel and use the dataModel key to get the value.

I would like to do something like:

void UpdateValues(IDictionary<string, object> dataModel)
{
    Type sourceType = typeof(sampleClass);
    foreach (PropertyInfo propInfo in (sourceType.GetProperties()))
    {
        if (dataModel.ContainsKey(propInfo.Name))
        {
            //  set propInfo value here
            propInfo.Value = dataModel[propInfo.Name];
        }
    }
}

But i have no idea how to do the line

propInfo.Value = dataModel[propInfo.Name];

Help! Thanks !!

score 5 · Accepted Answer · answered Oct 23 '12 at 22:45

5

you need an instance of the sampleClass to set the property on and then you can use the SetValue function to do that:

propInfo.SetValue(yourinstance, dataModel[propInfo.Name], null);

see this URL: http://msdn.microsoft.com/en-us/library/axt1ctd9.aspx

answered Oct 23 '12 at 22:45

Florescu Mihai

186
5

score 1 · Answer 2 · edited Apr 27 '13 at 18:57

1

propInfo.SetValue(sampleClass, dataModel[propInfo.Name], null)

edited Apr 27 '13 at 18:57

nawfal

70,104
56
326
368

answered Oct 23 '12 at 22:54

Greg Oks

2,700
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41

Update a class property using reflection and the name of the property as a string

2 Answers2