How do I create a calculator using visual basic that will automatically calculate without a button?

If I understand your question here's a quick way to achieve what's you're looking for.





Have 3 Text boxes on the screen


Text1.Text Text2.Text and Text3.Text





Numeric Values go into all boxes but for the first box you


would add the symbol of the operation you want and then when you move out of Text2.Text this will calculate your problem into Text3.Text





Text1.Text


Example: 25 +


Text2.Text


40


Text3.Text


65





Private Sub Text2_LostFocus()


If Val(Text1.Text) %26gt; 0 And Val(Text2) %26gt; 0 Then


FNum = Val(Text1.Text): SNum = Val(Text2)


If InStr(Text1.Text, "+") %26gt; 0 Then Text3.Text = FNum + SNum


If InStr(Text1.Text, "x") %26gt; 0 Then Text3.Text = FNum * SNum


If InStr(Text1.Text, "-") %26gt; 0 Then Text3.Text = FNum - SNum


If InStr(Text1.Text, "/") %26gt; 0 Then Text3.Text = FNum / SNum


End If





I hope this helps you......Owl