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“A project with an Output type of Class Library cannot be started directly”

...oject in Solution Explorer -> Properties. In opened tab with properties select Application and there will be ComboBox marked with Output Type label. share | improve this answer | ...
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The server principal is not able to access the database under the current security context in SQL Se

... DECLARE @UserName nvarchar(255) DECLARE orphanuser_cur cursor for SELECT UserName = su.name FROM sysusers su JOIN sys.server_principals sp ON sp.name = su.name WHERE issqluser = 1 AND (su.sid IS NOT NULL AND su.sid <> 0x0) AND suser_sname(su....
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Select element based on multiple classes

... You mean two classes? "Chain" the selectors (no spaces between them): .class1.class2 { /* style here */ } This selects all elements with class1 that also have class2. In your case: li.left.ui-class-selector { } Official documentation : CSS2 class ...
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Code equivalent to the 'let' keyword in chained LINQ extension method calls

... Let doesn't have its own operation; it piggy-backs off of Select. You can see this if you use "reflector" to pull apart an existing dll. it will be something like: var result = names .Select(animalName => new { nameLength = animalName.Length, animalName}) .Where...
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LINQ Select Distinct with Anonymous Types

...DelegateComparer<T>(equals,null)); } } var uniqueItems=students.Select(s=> new {FirstName=s.FirstName, LastName=s.LastName}) .Distinct((a,b) => a.FirstName==b.FirstName, c => c.FirstName.GetHashCode()).ToList(); Sorry for the messed up formatting earlier ...
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Install MySQL on Ubuntu without a password prompt

... sudo debconf-set-selections <<< 'mysql-server mysql-server/root_password password your_password' sudo debconf-set-selections <<< 'mysql-server mysql-server/root_password_again password your_password' sudo apt-get -y install ...
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How to change package name of an Android Application

... Right-click on the package name (src/com.android.gesture.builder). Select Refactor > Rename and change the name, for example to com.android.gestureNEW.builder. Open the manifest file. Inside the <manifest> tag, change the package name to com.android.gestureNEW.builder. ...
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'Contains()' workaround using Linq to Entities?

...ry<TEntity> query, Expression<Func<TEntity, TValue>> selector, IEnumerable<TValue> collection ) { if (selector == null) throw new ArgumentNullException("selector"); if (collection == null) throw new ArgumentNullException("collection"); if (!collection.Any()) ...
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Convert timestamp to date in MySQL query

... SELECT * FROM users WHERE DATE_FORMAT(FROM_UNIXTIME(users.user_created_at),'%Y-%b-%e') = '2015-03-06' is this correct format or should i modify this? – Dheeraj Thedijje Mar 7 '18 at 11:4...
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SQL query for finding records where count > 1

...ers that have more than one payment per day with the same account number SELECT user_id , COUNT(*) count FROM PAYMENT GROUP BY account, user_id , date Having COUNT(*) > 1 Update If you want to only include those that have a distinct ZIP you can get a distinct set first and then perfor...