How can we make a TextBox looks like Button using template?

If we wanna make the Button looks like TextBox it is easy,just add the TextBox as content of Button.But the reverse is not possible sice TextBox doesnt have Content property.So use Templating.

< TextBox Text="Hai" >
< TextBox.Template >
< ControlTemplate >
< Button Content="hai"/ >
< /ControlTemplate >
< /TextBox.Template >
< /TextBox >

CS Code

ControlTemplate ct=new ControlTemplate(typeof(TextBox));
FrameworkElementFactory fef=new FrameworkElementFactory(typeof(Button));
fef.SetValue(Button.ContentProperty,"hai");
ct.VisualTree =fef;
txt.Template = ct;