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ModelState.IsValid == false, why?

Where can I find the list of errors of which make the ModelState invalid? I didn't see any errors property on the ModelState object. ...
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How can I ignore a property when serializing using the DataContractSerializer?

I am using .NET 3.5SP1 and DataContractSerializer to serialize a class. In SP1, they changed the behavior so that you don't have to include DataContract / DataMember attributes on the class and it will just serialize the entire thing. This is the behavior I am using, but now I need to ignore o...
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How do I PHP-unserialize a jQuery-serialized form?

Using $('#form').serialize() , I was able to send this over to a PHP page. Now how do I unserialize it in PHP? It was serialized in jQuery. ...
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How do I get the RootViewController from a pushed controller?

So, I push a view controller from RootViewController like: 8 Answers 8 ...
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Explode string by one or more spaces or tabs

How can I explode a string by one or more spaces or tabs? 10 Answers 10 ...
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Which is faster: multiple single INSERTs or one multiple-row INSERT?

I am trying to optimize one part of my code that inserts data into MySQL. Should I chain INSERTs to make one huge multiple-row INSERT or are multiple separate INSERTs faster? ...
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How to join components of a path when you are constructing a URL in Python

For example, I want to join a prefix path to resource paths like /js/foo.js. 11 Answers ...
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How do I determine k when using k-means clustering?

I've been studying about k-means clustering , and one thing that's not clear is how you choose the value of k. Is it just a matter of trial and error, or is there more to it? ...
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Change case of a file on Windows?

There are a couple of files in our git-controlled codebase that I'd like to rename. Specifically, I just want to change the case of the file, so that sourceCode.java becomes SourceCode.java , for example. The catch: I'm on a Windows box, and the filesystem thinks those are the same file name. ...
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CKEditor instance already exists

I am using jquery dialogs to present forms (fetched via AJAX). On some forms I am using a CKEditor for the textareas. The editor displays fine on the first load. ...