c# - C#、GetProperty BindingSource、authorTableAdapter

Question

GetProperty に問題がある

partial class MyForm : Form
{
    ...

    public System.Windows.Forms.BindingSource authorBindingSource = new ...;
    public MethodicalWorkDataSetTableAdapters.authorTableAdapter authorTableAdapter = new ...;

    ...


    public static object GetPropValue(object src, string propName)
    {
        return src.GetType().GetProperty(propName).GetValue(src, null);
    }

    public void someFunction()
    {
        GetPropValue( this, "authorBindingSource" ); // returns null
    }
}

「authorTableAdapter」と「authorBindingSource」を除いて、関数 GetPropValue は正常に動作します。