stiflas
Network Sniffer Expert
LEVEL 2
1000 XP
In this article, we will create a program that can generate a random password when we pressed the button.
Now, let's start this tutorial!
1. Let's start with creating a Windows Form Application for this tutorial by following the following steps in Microsoft Visual Studio: Go to File, click New Project, and choose Windows Application.
2. Next, add only one Button named Button1 and labeled it as "Generate Password". Add also TextBox named TextBox1 for displaying the generated password. You must design your interface like this:
3. Declare these Global Variables:
Variable pNum is used for number/numeric content of the password.
Variable pLowerCase is used for LowerCase character content of the password.
Variable pUpperCaseis used for UpperCase character content of the password.
Variable passwordis used for resetting the new password.
Variable RandomSelecis used for random selection of the password.
4. Create a Function named getPassword as String with parameters of passLength as Integer and Reset as Boolean.
clear old passwords:
create random numbers that will represent each upercase,lowercase,numbers:
pick one of the three above for a character At Random:
reset with new password:
5. Insert this code in your Button1_Click so that the function two generate password will be used in the textbox.
We used the getPassword function to display the 8 digit random characters in the textbox and when we press again the button it will reset the password and generate again as we declare that the Reset variable is set to True.
Output:
Download the source code below and try it! :)
For more inquiries just contact my number or e-mail below.
Best Regards,
Engr. Lyndon R. Bermoy
IT Instructor/System Developer/Android Developer
Mobile: 09079373999
Telephone: 826-9296
E-mail:[email protected]
Visit and like my page on Facebook at: Bermz ISware Solutions
Subscribe at my YouTube Channel at: SerBermz
Download
Now, let's start this tutorial!
1. Let's start with creating a Windows Form Application for this tutorial by following the following steps in Microsoft Visual Studio: Go to File, click New Project, and choose Windows Application.
2. Next, add only one Button named Button1 and labeled it as "Generate Password". Add also TextBox named TextBox1 for displaying the generated password. You must design your interface like this:
3. Declare these Global Variables:
- Dim
pNum As
New
Random(
100
)
- Dim
pLowerCase As
New
Random(
500
)
- Dim
pUpperCase As
New
Random(
50
)
- Dim
password As
String
- Dim
RandomSelect As
New
Random(
50
)
Variable pNum is used for number/numeric content of the password.
Variable pLowerCase is used for LowerCase character content of the password.
Variable pUpperCaseis used for UpperCase character content of the password.
Variable passwordis used for resetting the new password.
Variable RandomSelecis used for random selection of the password.
4. Create a Function named getPassword as String with parameters of passLength as Integer and Reset as Boolean.
- Public
Function
getPassword(
ByVal
passLength As
Integer
, Optional
ByVal
Reset As
Boolean
=
False
)
As
String
- Dim
i As
Integer
- Dim
ctr(
2
)
As
Integer
- Dim
charSelect(
2
)
As
String
- Dim
iSel As
Integer
clear old passwords:
- If
Reset =
True
Then
- password =
""
- End
If
create random numbers that will represent each upercase,lowercase,numbers:
- For
i =
1
To
passLength
- ctr(
0
)
=
pNum.
Next
(
48
, 57
)
'Numbers 1 to 9
- ctr(
1
)
=
pLowerCase.
Next
(
65
, 90
)
' Lowercase Characters
- ctr(
2
)
=
pUpperCase.
Next
(
97
, 122
)
' Uppercase Characters
- 'put characters in strings
- charSelect(
0
)
=
System.
Convert
.
ToChar
(
ctr(
0
)
)
.
ToString
- charSelect(
1
)
=
System.
Convert
.
ToChar
(
ctr(
1
)
)
.
ToString
- charSelect(
2
)
=
System.
Convert
.
ToChar
(
ctr(
2
)
)
.
ToString
pick one of the three above for a character At Random:
- iSel =
RandomSelect.
Next
(
0
, 3
)
- 'colect all characters generated through the loop
- password &=
charSelect(
iSel)
reset with new password:
- If
Reset =
True
Then
- password.
Replace
(
password, charSelect(
iSel)
)
- End
If
- Next
- Return
password
- End
Function
5. Insert this code in your Button1_Click so that the function two generate password will be used in the textbox.
- Private
Sub
Button1_Click(
ByVal
sender As
System.
Object
, ByVal
e As
System.
EventArgs
)
Handles
Button1.
Click
- TextBox1.
Text
=
getPassword(
8
, True
)
- End
Sub
We used the getPassword function to display the 8 digit random characters in the textbox and when we press again the button it will reset the password and generate again as we declare that the Reset variable is set to True.
Output:
Download the source code below and try it! :)
For more inquiries just contact my number or e-mail below.
Best Regards,
Engr. Lyndon R. Bermoy
IT Instructor/System Developer/Android Developer
Mobile: 09079373999
Telephone: 826-9296
E-mail:[email protected]
Visit and like my page on Facebook at: Bermz ISware Solutions
Subscribe at my YouTube Channel at: SerBermz
Download
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