as-operator

C# – Get column values by name instead of by number with SqlDataReader

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When you execute a SQL query and read the results with SqlDataReader, you have two options for getting column values by name (instead of by ordinal number): I’ll show examples below. Read column by name with the indexer You can use the indexer to read columns by name (or by ordinal number). This returns an … Read more

C# – How to use JsonNode to read, write, and modify JSON

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When you don’t want to create classes for JSON (de)serialization, one option is to use JsonNode. This allows you work with JSON as a mutable DOM that consists of JsonNode objects (JsonObject, JsonArray, JsonValue). You can use it to read, write, and modify JSON. Here’s an example. Let’s say you have the following JSON that … Read more

C# – How to read the Description attribute

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You can use the Description attribute to describe types and type members (properties, methods). One of the most common use cases is providing a user-friendly string for enum values. Here’s an example of using the Description attribute with an enum: To read the Description attribute, use reflection and do the following steps: This can be … Read more