Only assignment call increment decrement and new object can be used as a statement in C#

Question

0.00/5 (No votes)

See more:

  Form prompt = new Form()
            {
                Width = 500,
                Height = 150,
                FormBorderStyle = FormBorderStyle.FixedDialog,
                Text = caption,
                StartPosition = FormStartPosition.CenterScreen
            };
            Label textLabel = new Label() { Left = 50, Top = 20, Text = text };
            TextBox textBox = new TextBox() { Left = 50, Top = 50, Width = 400 };
            Button confirmation = new Button() { Text = "Ok", Left = 350, Width = 100, Top = 70, DialogResult = DialogResult.OK };
           confirmation.Click += (sender, e) => { prompt.Close(); };
            prompt.Controls.Add(textBox);
            prompt.Controls.Add(confirmation);
            prompt.Controls.Add(textLabel);
            prompt.AcceptButton = confirmation;

             prompt.ShowDialog() == DialogResult.OK ? textBox.Text : "";

What I have tried:

prompt.ShowDialog() == DialogResult.OK ? textBox.Text : "";


only assignment call increment decrement and new object can be used as a statement in c#

Posted 10-Jun-19 18:30pm

Member 14120682

Updated 10-Jun-19 20:03pm

Add a Solution

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 · 2019-06-10T20:03:00

Look at your code, and I'll simplify it a little:

prompt.ShowDialog() == DialogResult.OK ? textBox.Text : "";

CallMyMethod() == 0 ? "A" : "B";

That isn't a usable statement, because it "returns" one of two strings, but it does nothing with it! The system looks at that and goes 'What am I supposed to do with "A" or "B"? I have nowhere to put them!'

You need an assignment to make that work:

string result = CallMyMethod() == 0 ? "A" : "B";

Gives it somewhere to store the result, so that'll compile.
So perhaps try:

string result = prompt.ShowDialog() == DialogResult.OK ? textBox.Text : "";