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C# code to validate email address

What is the most elegant code to validate that a string is a valid email address? 43 Answers ...
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WPF OpenFileDialog with the MVVM pattern? [duplicate]

... one method to get around this problem. public interface IOService { string OpenFileDialog(string defaultPath); //Other similar untestable IO operations Stream OpenFile(string path); } In your application, you would provide a default implementation of this service. Here is how yo...
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C# Lazy Loaded Automatic Properties

...can use the 4.0 Lazy<T> type to create this pattern private Lazy<string> _someVariable =new Lazy<string>(SomeClass.IOnlyWantToCallYouOnce); public string SomeVariable => _someVariable.Value; This code will lazily calculate the value of _someVariable the first time the Value e...
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Is it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps?

... BUILDING Again on Nathan and JB's Answer: How To Launch App From url w/o Extra Click If you prefer a solution that does not include the interim step of clicking a link, the following can be used. With this javascript, I was able to return a Httpresponse object from Django/Python that successfull...
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sqlite alter table add MULTIPLE columns in a single statement

...und for adding multiple columns using the benefit of transactions in SQL. String alterTableQuery = "ALTER TABLE " + TABLE_NAME + " ADD COLUMN "; List<String> newColumns = ..// Your new columns db.beginTransaction(); for (String column : newColumns){ db.execSQL(alterTableQuery + column + ...
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Difference between Select and ConvertAll in C#

...gt; calls, while ConvertAll will loop through the underlying array without extra calls or range checks. 3) Select will create an extra IEnumerable<T> object. share | improve this answer ...
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Function return value in PowerShell

...mately, I want the function to return the URL of the provisioned site as a String so at the end of my function I have the following code: ...
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TypeLoadException says 'no implementation', but it is implemented

...faceDef, add just one class, and build: public interface IInterface { string GetString(string key); //short GetShort(string key); } Create a second class library project: Implementation (with separate solution), copy InterfaceDef.dll into project directory and add as file reference, add ju...
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How to sort an array in Bash

... Next, the sort <<<"${array[*]}" part <<<, called here strings, takes the expansion of "${array[*]}", as explained above, and feeds it into the standard input of sort. With our example, sort is fed this following string: a c b f 3 5 Since sort sorts, it produces: 3 5 a c b f...
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How to “log in” to a website using Python's Requests module?

...e script when trying to log into sites with unverified SSL certificates. Extra: To run this script from the command line on a UNIX based system place it in a directory, i.e. home/scripts and add this directory to your path in ~/.bash_profile or a similar file used by the terminal. # Custom scrip...