Get the name and value of an attribute of an object

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C#

C#4.0

reflection

I have the following method to return a dictionary with all public attributes of an object. I can get the name of the attributes (class variables) but I can not get the values ​​of the same. Could anyone tell me how to achieve this in the method below:

public Dictionary<String, String> ObjectProperty(object objeto)
 {
    Dictionary<String, String> dictionary = new Dictionary<String, String>();

    Type type = objeto.GetType();
    FieldInfo[] field = type.GetFields();
    PropertyInfo[] myPropertyInfo = type.GetProperties();

    String value = null;

    foreach (var propertyInfo in myPropertyInfo)
    {
        value = (string) propertyInfo.GetValue(this, null); //Here is the error
        dictionary.Add(propertyInfo.Name.ToString(), value);

    }

    return dictionary;

}