What you are asking about is a topic in computer science known as Algorithm Complexity Analysis. It is a very important topic to consider when writing algorithms, or solutions, in your programs because it relates to run-time, or how fast your computations will run. Big-Oh, or O(n) relates to the upper-bound run-time for an algorithm … Read more
Add SQLite/SQL Server Compact Toolbox from In Visual Studio 2017 Community. Goto Tools – Extensions and Updates – click Online. Search for Sqlite. You should see Sqlite compact toolbox. Click download . Restart visual studio.
The equivalent would be class SortedDictionary<TKey, TValue> in the System.Collections.Generic namespace. If you don’t care about the order the class Dictionary<TKey, TValue> in the System.Collections.Generic namespace would probably be sufficient.
You’re missing a return statement. When the compiler looks at your code, it’s sees a third path (the else you didn’t code for) that could occur but doesn’t return a value. Hence not all code paths return a value. For my suggested fix, I put a return after your loop ends. The other obvious spot – adding an else that had a return value to the if-else-if – … Read more
You can do this way – Alternatively, you can use Lists – the advantage with lists being, you don’t need to know the array size when instantiating the list. Edit: a) for loops on List<T> are a bit more than 2 times cheaper than foreach loops on List<T>, b) Looping on array is around 2 times cheaper than looping on … Read more
These are the current declaration and initialization methods for a simple array. Note that other techniques of obtaining arrays exist, such as the Linq ToArray() extensions on IEnumerable<T>. Also note that in the declarations above, the first two could replace the string[] on the left with var (C# 3+), as the information on the right is enough to infer the proper type. … Read more
Check if you are referencing an assembly which in turn referencing an old version of unity. For example let’s say you have an assembly called ServiceLocator.dll which needs an old version of Unity assembly, now when you reference the ServiceLocator you should provide it with the old version of Unity, and that makes the problem. May be the output … Read more
If you already have a byte array then you will need to know what type of encoding was used to make it into that byte array. For example, if the byte array was created like this: You will need to turn it back into a string like this: If you can find in the code … Read more
I find that if you’re familiar with SQL syntax, using the LINQ query syntax is much clearer, more natural, and makes it easier to spot errors: If you’re really stuck on using lambdas though, your syntax is quite a bit off. Here’s the same query, using the LINQ extension methods: