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Add Keypair to existing EC2 instance
I was given AWS Console access to an account with 2 instances running that I cannot shut down (in production). I would however like to gain SSH access to these instances, is it possible to create a new Keypair and apply it to the instances so I can SSH in? Obtaining the exisiting pem file for the ke...
Cross-thread operation not valid: Control accessed from a thread other than the thread it was create
I have a scenario. (Windows Forms, C#, .NET)
22 Answers
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Filter Java Stream to 1 and only 1 element
I am trying to use Java 8 Stream s to find elements in a LinkedList . I want to guarantee, however, that there is one and only one match to the filter criteria.
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What is the best way to clone/deep copy a .NET generic Dictionary?
I've got a generic dictionary Dictionary<string, T> that I would like to essentially make a Clone() of ..any suggestions.
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Is there an opposite to display:none?
The opposite of visibility: hidden is visibility: visible . Similarly, is there any opposite for display: none ?
14 An...
How to test if list element exists?
I would like to test if an element of a list exists, here is an example
7 Answers
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When to use .First and when to use .FirstOrDefault with LINQ?
I've searched around and haven't really found a clear answer as to when you'd want to use .First and when you'd want to use .FirstOrDefault with LINQ.
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How do I abort/cancel TPL Tasks?
In a thread, I create some System.Threading.Task and start each task.
12 Answers
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This type of CollectionView does not support changes to its SourceCollection from a thread different
I have a DataGrid which is populating data from ViewModel by asynchronous method.My DataGrid is :
8 Answers
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Can I install Python 3.x and 2.x on the same Windows computer?
I'm running Windows and the shell/OS automatically runs Python based on the registry settings when you run a program on the command line. Will this break if I install a 2.x and 3.x version of Python on the same machine?
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