C#, difference between System.Window.Controls and System.Windows.Forms?
<p>Don't know the difference between the <code>System.Window.Controls.TextBox</code> and <code>System.Windows.Forms.TextBox</code>. Noticed that the <code>System.Windows.Forms.TextBox</code> can have <code>InvokeRequried</code> but <code>System.Window.Controls.TextBox</code> cannot.</p>

<p>what's the counterpart of <code>InvokeRequired</code> for <code>System.Window.Controls.TextBox</code>?</p>

<p>looks like if we have both <code>using System.Window.Controls;</code> and <code>using System.Window.Forms;</code> the code may conflict each other?</p>
