Mixing
How to propagate Dependency Property PropertyChanged event through binding in WPF?
up vote
0
down vote
favorite
I have a UserControl, which contains a DependencyProperty (string) in it's code behind. The property works fine, I am setting it from the code behind, and a label on the UserControl displays it's content properly via Binding. There is no Binding exception. The problem is: If i try to Bind something from outside to the UserControl's property, the Binding works, i can see the label displaying the string, but if the code behind changes the string, i cant receive the event at the outside Property. I even put a breakpoint in it's setter, but it never occurs. So, the question is: how do I propagate the dependency property's changed event to the outside property?
c# .net wpf
asked Nov 19 at 12:04
Bence Mányoki
1
New contributor
Bence Mányoki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
up vote
0
down vote
favorite
I have a UserControl, which contains a DependencyProperty (string) in it's code behind. The property works fine, I am setting it from the code behind, and a label on the UserControl displays it's content properly via Binding. There is no Binding exception. The problem is: If i try to Bind something from outside to the UserControl's property, the Binding works, i can see the label displaying the string, but if the code behind changes the string, i cant receive the event at the outside Property. I even put a breakpoint in it's setter, but it never occurs. So, the question is: how do I propagate the dependency property's changed event to the outside property?
c# .net wpf
asked Nov 19 at 12:04
Bence Mányoki
1
New contributor
Bence Mányoki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. Questions without a clear problem statement are not useful to other readers. See: How to create a Minimal, Complete, and Verifiable example
– ASh
Nov 19 at 12:08
The getter and setter for a dependency property are not used for bindings (this is why your breakpoints don't get hit). You have to pass aPropertyChangedCallbackas part ofFrameworkPropertyMetadatain theDependencyProperty.Registerfunction. See this answer for more information and an example.
– Bradley Uffner
Nov 19 at 12:52
Possible duplicate of How To Raise Property Changed events on a Dependency Property?
– Bradley Uffner
Nov 19 at 12:54
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I have a UserControl, which contains a DependencyProperty (string) in it's code behind. The property works fine, I am setting it from the code behind, and a label on the UserControl displays it's content properly via Binding. There is no Binding exception. The problem is: If i try to Bind something from outside to the UserControl's property, the Binding works, i can see the label displaying the string, but if the code behind changes the string, i cant receive the event at the outside Property. I even put a breakpoint in it's setter, but it never occurs. So, the question is: how do I propagate the dependency property's changed event to the outside property?
c# .net wpf
asked Nov 19 at 12:04
Bence Mányoki
1
New contributor
Bence Mányoki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I have a UserControl, which contains a DependencyProperty (string) in it's code behind. The property works fine, I am setting it from the code behind, and a label on the UserControl displays it's content properly via Binding. There is no Binding exception. The problem is: If i try to Bind something from outside to the UserControl's property, the Binding works, i can see the label displaying the string, but if the code behind changes the string, i cant receive the event at the outside Property. I even put a breakpoint in it's setter, but it never occurs. So, the question is: how do I propagate the dependency property's changed event to the outside property?
c# .net wpf
c# .net wpf
asked Nov 19 at 12:04
Bence Mányoki
1
New contributor
Bence Mányoki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Nov 19 at 12:04
Bence Mányoki
1
New contributor
Bence Mányoki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Nov 19 at 12:04
Bence Mányoki
1
New contributor
Bence Mányoki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Nov 19 at 12:04
Bence Mányoki
1
asked Nov 19 at 12:04
Bence Mányoki
1
1
New contributor
Bence Mányoki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Bence Mányoki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Bence Mányoki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. Questions without a clear problem statement are not useful to other readers. See: How to create a Minimal, Complete, and Verifiable example
– ASh
Nov 19 at 12:08
The getter and setter for a dependency property are not used for bindings (this is why your breakpoints don't get hit). You have to pass aPropertyChangedCallbackas part ofFrameworkPropertyMetadatain theDependencyProperty.Registerfunction. See this answer for more information and an example.
– Bradley Uffner
Nov 19 at 12:52
Possible duplicate of How To Raise Property Changed events on a Dependency Property?
– Bradley Uffner
Nov 19 at 12:54
add a comment |
1
Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. Questions without a clear problem statement are not useful to other readers. See: How to create a Minimal, Complete, and Verifiable example
– ASh
Nov 19 at 12:08
The getter and setter for a dependency property are not used for bindings (this is why your breakpoints don't get hit). You have to pass aPropertyChangedCallbackas part ofFrameworkPropertyMetadatain theDependencyProperty.Registerfunction. See this answer for more information and an example.
– Bradley Uffner
Nov 19 at 12:52
Possible duplicate of How To Raise Property Changed events on a Dependency Property?
– Bradley Uffner
Nov 19 at 12:54
1
1
Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. Questions without a clear problem statement are not useful to other readers. See: How to create a Minimal, Complete, and Verifiable example
– ASh
Nov 19 at 12:08
Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. Questions without a clear problem statement are not useful to other readers. See: How to create a Minimal, Complete, and Verifiable example
– ASh
Nov 19 at 12:08
The getter and setter for a dependency property are not used for bindings (this is why your breakpoints don't get hit). You have to pass a
PropertyChangedCallback as part of FrameworkPropertyMetadata in the DependencyProperty.Register function. See this answer for more information and an example.– Bradley Uffner
Nov 19 at 12:52
The getter and setter for a dependency property are not used for bindings (this is why your breakpoints don't get hit). You have to pass a
PropertyChangedCallback as part of FrameworkPropertyMetadata in the DependencyProperty.Register function. See this answer for more information and an example.– Bradley Uffner
Nov 19 at 12:52
Possible duplicate of How To Raise Property Changed events on a Dependency Property?
– Bradley Uffner
Nov 19 at 12:54
Possible duplicate of How To Raise Property Changed events on a Dependency Property?
– Bradley Uffner
Nov 19 at 12:54
add a comment |
active
oldest
votes
active
oldest
votes
active
oldest
votes
active
oldest
votes
active
oldest
votes
Bence Mányoki is a new contributor. Be nice, and check out our Code of Conduct.
Bence Mányoki is a new contributor. Be nice, and check out our Code of Conduct.
Bence Mányoki is a new contributor. Be nice, and check out our Code of Conduct.
Bence Mányoki is a new contributor. Be nice, and check out our Code of Conduct.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53374261%2fhow-to-propagate-dependency-property-propertychanged-event-through-binding-in-wp%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
1
Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. Questions without a clear problem statement are not useful to other readers. See: How to create a Minimal, Complete, and Verifiable example
– ASh
Nov 19 at 12:08
The getter and setter for a dependency property are not used for bindings (this is why your breakpoints don't get hit). You have to pass a
PropertyChangedCallbackas part ofFrameworkPropertyMetadatain theDependencyProperty.Registerfunction. See this answer for more information and an example.– Bradley Uffner
Nov 19 at 12:52
Possible duplicate of How To Raise Property Changed events on a Dependency Property?
– Bradley Uffner
Nov 19 at 12:54