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How would you do a “not in” query with LINQ?
I have two collections which have property Email in both collections. I need to get a list of the items in the first list where Email does not exist in the second list. With SQL I would just use "not in", but I do not know the equivalent in LINQ. How is that done?
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Converting a String to DateTime
How do you convert a string such as 2009-05-08 14:40:52,531 into a DateTime ?
17 Answers
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JPA getSingleResult() or null
I have an insertOrUpdate method which inserts an Entity when it doesn't exist or update it if it does. To enable this, I have to findByIdAndForeignKey , if it returned null insert if not then update. The problem is how do I check if it exists? So I tried getSingleResult . But it throws an ex...
Getting the HTTP Referrer in ASP.NET
I'm looking for a quick, easy and reliable way of getting the browser's HTTP Referrer in ASP.Net ( C# ). I know the HTTP Referrer itself is unreliable, but I do want a reliable way of getting the referrer if it is present.
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Create two blank lines in Markdown
I am adding Markdown support to my CMS editor.
15 Answers
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JPA: How to have one-to-many relation of the same Entity type
There's an Entity Class "A". Class A might have children of the same type "A". Also "A" should hold it's parent if it is a child.
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Ways to save enums in database
What is the best way to save enums into a database?
11 Answers
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Get class that defined method
How can I get the class that defined a method in Python?
6 Answers
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How do I include a pipe | in my linux find -exec command?
This isn't working. Can this be done in find? Or do I need to xargs?
6 Answers
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