"%f \t%f\n" says print a space, the first value, a space, then a tab, then the second value, then a newline.
You need to put a newline in between the first and second rather than a tab.
I need the first x,y value in first line and the next set of x,y values in next line with a space(tab) between them.
The '\n' that I have given is getting printed as a small rectangular box in the o\p text file rather than making the next pair to go to the new line.
The o\p should be something like this;
and so on.
For Each ctrl As Control In Me.Controls("pnlMainPanel").Controls
If ctrl.GetType Is GetType(System.Windows.Forms.Panel) Then
For Each subCtrl As Control In ctrl.Controls
If subCtrl.GetType Is GetType(System.Windows.Forms.TextBox) Then
If subCtrl.GetType Is ...