System.Visibility Problem in wpf

Question

0.00/5 (No votes)

See more:

C#

public Screen2 MyScreen2{ get; set; }
private void Button_Click(object sender, RoutedEventArgs e)
      {
            this.Visibility = System.Windows.Visibility.Collapsed;

            
                this.MyScreen2.Visibility = System.Windows.Visibility.Visible;
            
        }

i try this, shows an 'System.NullReferenceException' => "Object reference not set to an instance of an object".
Here MyScreen2 shows null,
Give some idea's how to resolve it, thanks in advance

Posted 14-Oct-15 19:49pm

MVK_VIJI

Updated 14-Oct-15 20:58pm

v3

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)

_Amy · Answer 1 · 2015-10-14T20:51:00

Solution 1

You are trying to use something that is null. This means you either set it to null, or you never initialized it.

I would suggest you to step through the code and find the null object.
You should check your MyScreen2 object.

--Amy

Posted 14-Oct-15 20:51pm

_Amy

Comments

MVK_VIJI 15-Oct-15 3:08am

fine, how can i handle it????????

_Amy 15-Oct-15 3:49am

Try this:
try
{
this.Visibility = System.Windows.Visibility.Collapsed;
this.MyScreen2.Visibility = System.Windows.Visibility.Visible;
}
catch(Exception ex)
{
//Show your custom message here.
}