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10-Dec-2019 14:31

NET property is read directly from a private member in your class, whereas the value of a Dependency Property is resolved dynamically when calling the method that is inherited from Dependency Object. This baseclass defines a key, value dictionary that contains local values of dependency properties.

When you set a value of a dependency property it is not stored in a field of your object, but in a dictionary of keys and values provided by the base class Every time you access a dependency property, it internally resolves the value by following the precedence from high to low. The key of an entry is the key defined with the dependency property. NET property wrapper, it internally calls to access the value.

So you see, it's not possible to have all those properties on all WPF controls. They are defined by the control that needs the data from another control in a specific context.

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In the following example we limit the time to be in the past. Is does not make sense to provide a setter for this value.This sequence is a bit simplified, but it shows the main concept. Important: Do not add any logic to these properties, because they are only called when you set the property from code.To create a Dependency Property, add a static field of type to create an instance of a dependency property. If you set the property from XAML the Set Value() method is called directly.A ‘concern’ can be considered as an aspect of software functionality.For eg: The UI can be a concern, the business logic can be another concern and so on.

In the following example we limit the time to be in the past. Is does not make sense to provide a setter for this value.This sequence is a bit simplified, but it shows the main concept. Important: Do not add any logic to these properties, because they are only called when you set the property from code.To create a Dependency Property, add a static field of type to create an instance of a dependency property. If you set the property from XAML the Set Value() method is called directly.A ‘concern’ can be considered as an aspect of software functionality.For eg: The UI can be a concern, the business logic can be another concern and so on.As a very basic example of So C, think about HTML, CSS and Java Script, where all these technologies have a well-defined purpose.