how i an openfiledialog tradition control's ability grid?

i'm formulating .net tradition control should means bucket churned calm files. i have open ability named listfiles those properties set :

[browsable(true), category("configuration"), description("list files load")]
public twine listfiles
  {
     { relapse m_olist; }
     set { m_olist = value; }
  }

depending on form object, (string, string[], list, ...), ability grid grant user enter data.. idea have filtered openfiledialog properties grid member assent user select churned files relapse an array twine (or something else...).

sooo... here's doubt : how i an openfiledialog tradition control's ability grid?

thanks lot!