Get all controls inside window form and set its value

This code cleans/set the value of textbox control to space("") inside the formwindow and inside the groupbox control.

VB.NET

For Each octl As Control In Me.Controls

If (TypeOf octl Is GroupBox) Then

Dim gbox As GroupBox = DirectCast(octl, GroupBox)

For Each ictl As Control In gbox.Controls

If (TypeOf ictl Is TextBox) Then

Dim itxt As TextBox = DirectCast(ictl, TextBox)

itxt.Text = ""

End If

Next

End If

If (TypeOf octl Is TextBox) Then ' textbox outside the groupbox

Dim txt As TextBox = DirectCast(octl, TextBox)

txt.Text = ""

End If

Next

C#

foreach (Control octl in this.Controls)

{

if ((octl is GroupBox))

{

GroupBox gbox = (GroupBox)octl;

foreach (Control ictl in gbox.Controls)

{

if ((ictl is TextBox))

{

TextBox itxt = (TextBox)ictl;

itxt.Text = "";

}

}

}

if ((octl is TextBox))

{

TextBox txt = (TextBox)octl;

txt.Text = "";

}

}