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Unable to Cast from Parent Class to Child Class
...mple way to downcast in C# is to serialize the parent and then deserialize it into the child.
var serializedParent = JsonConvert.SerializeObject(parentInstance);
Child c = JsonConvert.DeserializeObject<Child>(serializedParent);
I have a simple console app that casts animal into dog, usi...
What does this symbol mean in IntelliJ? (red circle on bottom-left corner of file name, with 'J' in
...rce files in the package. Beside each file the 'J' icon has a red circle with a line through it.
19 Answers
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Select elements by attribute
I have a collection of checkboxes with generated ids and some of them have an extra attribute. Is it possible to use JQuery to check if an element has a specific attribute?
For example, can I verify if the following element has the attribute "myattr"? The value of the attribute can vary.
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Do you use source control for your database items? [closed]
... schema changes. We do a lot of backups so we're more or less covered, but it's bad practice to rely on your last line of defense in this way.
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how to install gcc on windows 7 machine?
...this purpose. I checked the following page : http://gcc.gnu.org/install/
It is difficult and I find it above my level of understanding.
Could any one please provide me step by step guidance along with links?
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String comparison in Python: is vs. == [duplicate]
I noticed a Python script I was writing was acting squirrelly, and traced it to an infinite loop, where the loop condition was while line is not '' . Running through it in the debugger, it turned out that line was in fact '' . When I changed it to !='' rather than is not '' , it worked fine.
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AngularJS Folder Structure [closed]
... by type. Not too bad for smaller apps, but even here you can start to see it gets more difficult to find what you are looking for. When I want to find a specific view and its controller, they are in different folders. It can be good to start here if you are not sure how else to organize the code as...
How to insert text into the textarea at the current cursor position?
... a simple function that adds text into a text area at the user's cursor position. It needs to be a clean function. Just the basics. I can figure out the rest.
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What is the difference between gravity and layout_gravity in Android?
I know we can set the following values to the android:gravity and android:layout_gravity properties:
20 Answers
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Is it possible to reopen a closed branch in Mercurial?
I understand that it is possible to close a named branch in Mercurial, so that it will not appear in the hg branches list:
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