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- How to fix The ConnectionString property has not been initialized
How to fix "The ConnectionString property has not been initialized" Asked 16 years, 5 months ago Modified 3 months ago Viewed 512k times
- How To Raise Property Changed events on a Dependency Property?
In this case, dependency property A is the string InviteText, which triggers a change in dependency property B, the Visibility property named ShowInvite This would be a common use case if you have some text that you want to be able to hide completely in a control via data binding
- How can you test if an object has a specific property?
The solution that appears to iterate through every property and uses a regular expression is a little slower than the previous two solutions (because compiling and executing the regular expression takes more time)
- Conditionally required property using data annotations
129 RequiredIf validation attribute I've written a RequiredIfAttribute that requires a particular property value when a different property has a certain value (what you require) or when a different property has anything but a specific value This is the code that may help:
- How to implement a property in an interface - Stack Overflow
In the interface, there is no code You just specify that there is a property with a getter and a setter, whatever they will do In the class, you actually implement them The shortest way to do this is using this { get; set; } syntax The compiler will create a field and generate the getter and setter implementation for it
- How can I check if an object has an attribute? - Stack Overflow
How do I check if an object has some attribute? For example: >>> a = SomeClass() >>> a property Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: SomeClass instance has no attribute 'property' How do I tell if a has the attribute property before using it?
- python - How to make a class property? - Stack Overflow
Descriptors like property need to be in the type's dictionary to work their magic So those in a class definition primarily affect the behaviour of instances of the class, with minimal effect on the behaviour of the class itself (since the class is the type of the instances)
- . net - Whats the difference between a dependency property and an . . .
There is a difference between registering a dependency property as a regular and as an attached property, other than a "philosophical" one (regular properties are intended to be used by the declaring type and its deriving types, attached properties are intended to be used as extensions on arbitrary DependencyObject instances)
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