textbox, msgbox and button
Let's know what is textbox and button , and how we can use in our form.
So use these two tools go to the toolbox and click and drag them on the form. (Figure 2.0)
Figure 2.0
Change the text of
button from its properties Figure 2.1
and figure 2.2 after click on button.
Figure 2.2
Figure 2.1
Then double click on button to go to the coding section.
Here Figure 2.3 some by default code if you
have confused about this code so don't
worry dude and go to my VB 2008 Tutorials
and watch that video because i have
already explain in detail about this
default code.
Figure 2.3
Now write this code which is show in Figure 2.4.
Figure 2.4
In this pitcher we are taking the addition of values of TextBox1 and TextBox2 in TextBox3.
in this code we need only values of textboxes so i have assign Val keyword which help to take
only values of textboxes, and we have assign .Text means that we want to assign text of Textbox1
and TextBox2 in the text of TextBox3. If you have any queries so you can message me or check
VB 2008 Tutorials. Then go to form1.vb [Design], and follow below steps to execute program.
1.
Click
start
Debugging.
3.
click
calculate
button.
Figure 2.4.1
Figure 2.4.2
Figure 2.4.3
2.
enter
numbers.
Figure 2.5
Here figure 2.5 we have created three variables.
Dim a As Integer
Dim b As Integer
Dim c As Integer
this is the way to declare variable in VB.
after declare variable i have assign the value of TextBox1 inside the a variable and value of TextBox2 assign inside the b variable.
then assign a+b inside the c variable.
At the end, I will show the value of c through a message box (there are further arguments in message box which we will learn later but here we have passing c as argument which is show in message box). We will also show value of c in the TextBox. Follow Below steps.
Figure 2.5.1
Figure 2.5.3
1.
Click
start
Debugging.
2.
enter
numbers.
Figure 2.5.2
3.
Click on
calculate
button then
OK button
of msgbox.
Figure 2.5.4