In this Blog I am showing that 
how to show a TextBox in F# windows form application.
Example
open 
System
open 
System.Windows.Forms
 
let 
form =
// 
create a form
 
let temp = new 
Form()
 
// 
create a text box and set its anchors
 
let txtBx = new 
TextBox(Top=8,Left=8, Width=temp.Width - 24,
                          Anchor = (AnchorStyles.Left |||
                                    AnchorStyles.Right |||
                                    AnchorStyles.Top))
// 
add the text box to the form and return the form
  
temp.Controls.Add(txtBx)
  temp
[<STAThread>]
do 
Application.Run(form)
Output
![TextBox Output]()