A Textbox Control provides facility to input or display data at runtime .
Textbox Properties
Following source code which process digits given in first two Texbox's with Addition Operator and shows output in third TextBox .
Example ,
Public Sub Command1_Click() Dim a As Integer Dim b As Integer Dim c As Integer On Error Goto errHandler a = Str(Text1.Text) b = Str(Text2.Text ) c=Str(a+b) Text3.Text = c Exit Sub errHandler: MsgBox " Please enter number values ! Fields could not be null ! " End Sub -Author : Vishal Bandre-~~~~