validation on login screen

Question

1.00/5 (1 vote)

See more:

i am working oo the login screen vb.net and i have to make validation on it

i just make if the textbox empty an error message will appear

i want more than this one
any one have??

Posted 1-Mar-12 4:21am

dr.dream

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Ganesan Senthilvel · Answer 1 · 2012-03-01T04:50:00

Solution 1

Here is the sample code:

VB

If String.IsNullorWhitespace(txtBoxName.text) Then
     MsgBox("Error")
     End Sub
End If

Posted 1-Mar-12 4:50am

Ganesan Senthilvel

Comments

dr.dream 1-Mar-12 11:06am

it is not working

dr.dream 1-Mar-12 11:07am

i am using this code:
Try

If txtname.Text = "" Or txtpass.Text = "" Then

MessageBox.Show("Invalid Username or Password")

Exit Sub

End If

Catch ex As Exception

MessageBox.Show(ex.Message)

Me.Hide()

End Try

home.Show()

dr.dream 1-Mar-12 11:07am

so where is should put it?

Isuru Nanayakkara 1-Mar-12 13:07pm

in the next step of your program's flow perhaps? I assume it would be a button for login. Put this code in the button's click event. Btw @GanesanSenthilvel's answer is good for validating Textboxes.

thatraja · Answer 2 · 2012-03-01T05:10:00

Solution 2

Google? :sigh:

Provide a login form in VB .NET[^]

Posted 1-Mar-12 5:10am

thatraja