Question

I am trying get a Form’s BindingSource using Reflection. The following code is what I’ve tried so far although it has an error:

public class MyClass :Form
{
    BindingSource bs = new BindingSource();
}

public static class Class2
{
    public static BindingSource GetBindingSource(string FieldNameP, Form FormP)
    {
        BindingSource Bs = null;

        var info=FormP.GetType().GetField(FieldNameP);
        if(info != null)
        {
            Bs = (BindingSource)info.GetValue(null)
        }

        return Bs;
    }
}

Answer 1

On your call to get field, you need to use the overload that accepts binding flags. You may need to trial and error it a bit but I think your need:

BindingFlags.NonPublic | BindingFlags.Instance

.GetValue takes the instance of the object you want to invoke the field on.

.GetValue(myform);

A better approach may be to create an interface:

public interface IBindable
{
    BindingSource Source { get; }
}

Apply it to the form:

public class MyClass : Form, IBindable
{
    private BindingSource _Source = new BindingSource();
    public BindingSource Source { get { return _Source; } }
}

Use the interface:

BindingSource formSource = MyForm.Source;