C# – How to navigate between windows in WPF

cclickwpf

I have tried to set up a click event for a button that opens another window,but the error I'm getting at NavigationService is that the project doesn't contain a definition for it.

This is how I'm trying to call the page at present:

private void conditioningBtn_Click(object sender, RoutedEventArgs e)
{
    this.NavigationService.Navigate(new Uri("TrainingFrm.xaml", UriKind.RelativeOrAbsolute));
}

Can someone point me in the right direction with this or show alternatives to this method for window navigation?

Best Answer

NavigationService is for browser navigation within WPF. What you are trying to do is change to a different window TrainingFrm.

To go to a different window, you should do this:

private void conditioningBtn_Click(object sender, RoutedEventArgs e)
{
    var newForm = new TrainingFrm(); //create your new form.
    newForm.Show(); //show the new form.
    this.Close(); //only if you want to close the current form.
}

If, on the other hand, you want your WPF application to behave like a browser, then you would need to create Pages instead of Forms, and then use a Frame in your application to do the navigation. See this example.

Related Solutions

C# – the difference between String and string in C#

string is an alias in C# for System.String.
So technically, there is no difference. It's like int vs. System.Int32.

As far as guidelines, it's generally recommended to use string any time you're referring to an object.

e.g.

string place = "world";

Likewise, I think it's generally recommended to use String if you need to refer specifically to the class.

e.g.

string greet = String.Format("Hello {0}!", place);

This is the style that Microsoft tends to use in their examples.

It appears that the guidance in this area may have changed, as StyleCop now enforces the use of the C# specific aliases.

C# – How to cast int to enum

From an int:

YourEnum foo = (YourEnum)yourInt;

From a string:

YourEnum foo = (YourEnum) Enum.Parse(typeof(YourEnum), yourString);

// The foo.ToString().Contains(",") check is necessary for enumerations marked with an [Flags] attribute
if (!Enum.IsDefined(typeof(YourEnum), foo) && !foo.ToString().Contains(","))
{
    throw new InvalidOperationException($"{yourString} is not an underlying value of the YourEnum enumeration.")
}

Update:

From number you can also

YourEnum foo = (YourEnum)Enum.ToObject(typeof(YourEnum) , yourInt);

Best Answer

Related Solutions

C# – the difference between String and string in C#

This is the style that Microsoft tends to use in their examples.

C# – How to cast int to enum

Related Topic