Bind dynamically created properties to a grid

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My class is like this,

public class Person : DynamicObject
{
    public string Name { get; set; }
    public string Address { get; set; }
    Dictionary&lt;string, object&gt; dictionary
        = new Dictionary&lt;string, object&gt;();
    public int Count
    {
        get
        {
            return dictionary.Count;
        }
    }
    public override bool TryGetMember(
        GetMemberBinder binder, out object result)
    {
        string name = binder.Name;
        return dictionary.TryGetValue(name, out result);
    }
    public override bool TrySetMember(
        SetMemberBinder binder, object value)
    {
        dictionary[binder.Name] = value;
        return true;
    }
    public void AddProperty&lt;TTValue&gt;(string key, TTValue value = default(TTValue))
    {
        dictionary[key] = value;
    }
    public void AddProperty(string typeName, string key, object value = null)
    {
        Type type = Type.GetType(typeName);
        dictionary[key] = Convert.ChangeType(value, type);
    }
}

Then I'm creating objects from this class and add it to a list

dynamic p = new Person();
p.Name = "john&";
p.Address = "address"";
p.AddProperty<datetime>("BirthDate", DateTime.Now);

List<person> lstPerson=new List<person>();

lstPerson.Add(p);</person></person></datetime>

After add few person objects like this I bind this to a datagrid view using a binding source. But after bound to the grid view my dynamically created properties are not shown in the grid.

Posted 20-Jun-11 17:22pm

Sanyon_d

Updated 20-Jun-11 17:28pm

v4

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Alex Perepletov · Answer 1 · 2011-06-28T07:35:00

Your class needs to implement the ICustomTypeDescriptor interface. The framework queries this interface when it needs to know what are the properties of your type. I wrote an article on a very similar subject a while ago. In fact, I used a Person class as well. In my case, I was creating baseline properties, such as Address1, Address2, etc. Unlimited baselines for any class[^]

However, for simplicity, you may choose a much simpler road that may still work. Make your Person class inherit from DataTable and have a single DataRow in it. Add columns when you add custom properties.