First, we are going to allow an option price of "0.00" to be displayed,
as well as calculating and graphing very low and high priced stocks.
Change the following Control Properties on the Leg1 Panel:
|
CONTROL NAME
|
MINIMUM
|
MAXIMUM
|
VALUE
|
|
Leg1OptionPrice
|
0
|
|
0
|
|
Leg1StockPrice
|
.01
|
999
|
|
|
Leg1StrikePrice
|
.01
|
999
|
|
Next, we will take advantage of a Visual Basic feature that lets you
treat a Panel and all the Controls on it as a single object. This will
allow us to copy the Leg1 Panel, and Paste it 3 times to make Panels
and Controls for Legs 2, 3, and 4.
Click on the background of lowest Panel, the one that has the "Find
Price" and "Find IV" buttons on it. Then click on the four-way arrow
symbol in the upper left corner of that Panel, and use your mouse to
move the Panel down a couple inches.
Now click the background of the Leg1 Panel, and press CTRL-C to copy
it. Click on the gray background of Form1, then press CTRL-V to paste
a copy of the Panel. Use your mouse as before to position the new Panel
under the Leg1 Panel.
Click on the Form1 background again, press CTRL-V again to paste another
copy, and move the new Panel under the other two.
Do the same thing one more time, so you have four Leg Panels and all
their Controls.
Now comes the tedious part. When you copy Controls, Visual Basic cannot
use the same name as the old Control, and it also cannot know what name
you want to give the new Control. This means we need to change the Name
Property of every new Control to match the Names we will be using in
code.
The easiest, fastest, and most error-free way to do this is to click
on the Control for Leg1. Then in the Property Window, copy the Name
Property by selecting the name and pressing CTRL-C. Now on each of the
three other legs, select the same Control on the form, select the Name
Property (which will be a generic name like "ComboBox1", and press CTRL-V
to paste the Name. Before you leave the Name Property, change the number
in the Name to the number of the Leg you are working on. For instance,
you will paste "Leg1Type" into the Name Property of the Type Control
for Leg2, and change the "1" to a "2" so it says "Leg2Type". Each Leg
Control should have all the numbers changed to match the leg you are
working on.
If you forget to change the number in the Name before leaving the
Name Property, Visual Basic will give an error message, because two
Controls cannot have the same Name.
After you change a Name, the best way to leave the field is by pressing
your Tab key. If you use your Enter key or click on the Form with your
mouse, Visual Basic will give you an annoying "ding".
Each Leg has 13 Controls on it, and you added 3 new legs, so you have
39 Name Properties to change. Don't forget the two small buttons next
to each expiration date - they have Names we need to reference in code
also.
If you have any question about what a Name is supposed to be, you can
skip ahead to the Test the Names page and
they are all spelled out there in the testing code.
In addition to the 13 Controls, there is also the Orange Label that
says "Leg1". Select each of those and change the Text Property to Leg2,
Leg3, and Leg4. Your Form should now look like the picture below:
Save your Project.
Option-Graph.com