Hello guys,
I was programming this simple adding numbers program and I thought about developing it more and more
The First code is :
Not that text box 3 is read only !
Now I want to make the program give an error message it the input in textbox1 and textbox2 was nothing or not integer (number)
How i do that
I tried :
but I keep getting error that it cannot convert Integer to String !
Any Ideas ??
THANKS,
I was programming this simple adding numbers program and I thought about developing it more and more
The First code is :
Code:
Dim number1, number2, sum As Integer
number1 = TextBox1.Text
number2 = TextBox2.Text
sum = number1 + number2
TextBox3.Text = sum
MessageBox.Show("Thank you for using me.")Now I want to make the program give an error message it the input in textbox1 and textbox2 was nothing or not integer (number)
How i do that
I tried :
Code:
if TextBox1.Text = "" then
MsgBox("ERROR")
end ifAny Ideas ??
THANKS,