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I have a Dictionary<string, List<Order>> and I want to have the list of keys in an array. But when I choose . string[] keys = dictionary.Keys; This doesn't compile. How do I convert KeysCollection to an array of Strings?
These days, once you have LINQ available, you can convert the dictionary keys and their values to a single string. You can use the following code: // convert the dictionary to an array of strings. string[] strArray = dict.Select(x => ("Key: " + x.Key + ", Value: " + x.Value)).ToArray();
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To access the value of an array element, whether to read it or set it, you refer to the array by name and specify the index. For example: int[] someIntegers = { 1, 2, 3 }; int x = 1 + someIntegers[0]; // x = 2. int y = 2 * someIntegers[2]; // y = 6. someIntegers[2] = y; // someIntegers now contains { 1, 2, 6 }
15 sie 2015 · The tool displays the buckets array, which contains indices which point to records in the entries array, and shows the details of the actual entries. I created a helper class which represents a book with an author and a title.
2 wrz 2024 · Using Index: You can access individual key/value pair of the Dictionary by using its index value. Here, you just specify the key in the index to get the value from the given dictionary, no need to specify the index.
13 lip 2022 · In this article, we’re going to explore accessing Dictionary items by index in C# and its performance considerations. The Dictionary<TKey,TValue> generic class provides the ability to map keys to values.
