Loading a picture with openfiledialog. (Wpf)

Question

1.00/5 (1 vote)

See more:

I want to load a Image with OFD and it does not work. Here is the C# code:

It gives me an error in this line if (op.ShowDialog() == true) The error is Operator '==' cannot be applied to operands of type 'DialogResult' and 'bool'.
Please help.

What I have tried:

private void Button_add_Click(object sender, RoutedEventArgs e) {
        {
            OpenFileDialog op = new OpenFileDialog();
            op.Title = "Select a picture";
            op.Filter = "JPEG Files (*.jpeg)|*.jpeg|PNG Files (*.png)|*.png|JPG Files (*.jpg)|*.jpg|GIF Files (*.gif)|*.gif";
            if (op.ShowDialog() == true)
            {
                Image1.Source = new BitmapImage(new Uri(op.FileName));
            }

        }

Posted 30-May-17 0:55am

Member 13230757

Updated 30-May-17 3:18am

Add a Solution

3 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)

Richard MacCutchan · Answer 1 · 2017-05-30T02:30:00

Solution 1

See CommonDialog.ShowDialog Method (System.Windows.Forms)[^].

Posted 30-May-17 2:30am

Richard MacCutchan

Dave Kreskowiak · Answer 2 · 2017-05-30T03:13:00

Solution 2

Like Richard pointed you to, READ THE DOCUMENATION!

The ShowDialog() method doesn't return a boolean. It returns a DialogResult enum value.

You could have solved this yourself in seconds had you just read the documentation to see what ShowDialog() returns.

Posted 30-May-17 3:13am

Dave Kreskowiak

TheRealSteveJudge · Answer 3 · 2017-05-30T03:18:00

There are two different versions of OpenFileDialog.

One belongs to the namespace System.Windows.Forms.
https://msdn.microsoft.com/en-us/library/e61ft40c(v=vs.110).aspx

The other one belongs to the namespace Microsoft.Win32.
https://msdn.microsoft.com/en-us/library/ms614336(v=vs.110).aspx

Have a look at the using session on top of your source code.
I am sure you have referenced System.Windows.Forms.

In order to compare the return value of ShowDialog to a nullable bool
you must replace
using System.Windows.Forms
by
using Microsoft.Win32

Make sure you added the corresponding reference.