Messagebox.show doens't working

Question

1.00/5 (3 votes)

See more:

private void button1_Click(object sender, EventArgs e)
{
    MessageBox.Show("dsfkl");
    if(qualDia == 0){
        checkF();
    }

}

What I have tried:

Doesn't working why?

Posted 6-Mar-20 3:32am

Fatima Portugal

Updated 6-Mar-20 4:05am

Add a Solution

Comments

Richard MacCutchan 6-Mar-20 9:46am

You need to provide more information. That call should show a MessageBox containing that text and an OK button.

Richard Deeming 6-Mar-20 9:52am

If this is an ASP.NET application, then that's by design. The code is running on the server, so the message would appear on the server where nobody would ever see it, and your code would hang waiting for an administrator to log in to the server and acknowledge hundreds of messages.

If this isn't ASP.NET, then you need to provide a lot more information.

1 solution

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)

OriginalGriff · Answer 1 · 2020-03-06T04:06:00

If this is a web application, then yes, it is. Just you can't see it.

C# code runs at the server, not the client, so all direct user interaction shows up on the server - so your MessageBox opens on the Server several thousand miles from the client, on a machine that probably has no monitor, mouse, or keyboard attached; and as a result the user can't see it at all.

It seems to work in dev because the client and server are the same machine - so the C# code on the server showing a message box looks like it's fine.

You cannot open a MessageBox, or a command window, or fetch input directly from the user at all - the best you can do is use an Alert in your Javascript code, or display something as part of your HTML code.