If statement Visual studio 2012

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VS2012

How can i check 4 things with one "If statement" and using for all the same msgbox...

here is the code: For VS2012 can't use and &&, or ||...What can i use?

VB

If (Form2.txtName.Text ="" Form2.txtLastName.Text = "" Form2.cboField.Text = 0 Form2.cboStudy.Text = 0) Then
           MsgBox("Fill all your information please")
       End If

Posted 18-Jan-13 9:22am

San Dra

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Adam R Harris · Accepted Answer · 2013-01-18T09:28:00

Solution 1

And[^] / AndAlso[^]

Posted 18-Jan-13 9:28am

Adam R Harris

Comments

Sergey Alexandrovich Kryukov 18-Jan-13 19:34pm

Right, a 5. Will OP understand the difference? "AndAlso" optimized out redundant check, but if condition calls some functions with side effect, such optimization will get this side effect lost, which can be a problem.
—SA

Dane Dickey · Accepted Answer · 2013-01-18T09:28:00

Solution 2

If you are writing in VB.NET, the keywords are

VB

AndAlso

(equivalent to C# double ampersand) and

VB

OrElse

(equivalent to C# double pipe).

VB

If (Form2.txtName.Text ="" OrElse Form2.txtLastName.Text = "" OrElse Form2.cboField.Text = 0 OrElse Form2.cboStudy.Text = 0) Then
           MsgBox("Fill all your information please")
       End If

You should also use String.IsNullOrEmpty() to check if a string is null or an empty string ("").

Posted 18-Jan-13 9:28am

Dane Dickey

Updated 18-Jan-13 9:29am

v2

Comments

Sergey Alexandrovich Kryukov 18-Jan-13 19:34pm

Right, a 5. But will OP understand the difference? "AndAlso" optimized out redundant check, but if condition calls some functions with side effect, such optimization will get this side effect lost, which can be a problem.
—SA

San Dra 19-Jan-13 6:52am

It worked with "OrElse"..so that's for Visual Studio 2012 in vb..:))