Okay, Here are the steps to start. Step 1: Download Dev C++ - Nice and free C++ IDE with compiler/linker, etc... from http://www.bloodshed.net/dev/devcpp.html or http://prdownloads.sourceforge.net/dev-cpp/devcpp-4.9.9.2_setup.exe If you already have Visual Studio.Net 2005/2008 or Visual C++ 6, then...
This program will not allow users to input non-numeric characters. FYI, KeyAscii code for numbers is between 48-57. Private Sub Text1_KeyPress(KeyAscii As Integer) If KeyAscii < 48 Or KeyAscii > 57 Then KeyAscii = 0 Beep End If End Sub The problem is users cannot erase or add point to the number he ...
This program will warn you if there is one or more empty textbox. You can modify it to handle empty checkbox, etc. Sub CheckEmptyTB() Dim ctr As Control For Each ctr In Me.Controls If TypeOf ctr Is TextBox Then MsgBox "Empty TextBox!" ctr.SetFocus Exit Sub End If Next ctr End Sub