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Posted on 03/11/2025 03:00

This article demonstrated how to simplify the process of filtering elements from a list based on a condition related to their cumulative sum using C#'s `TakeWhile` and `Aggregate` methods. The provided code example illustrates how to efficiently achieve the desired outcome while ensuring readability and simplicity in the process. By utilizing the combination of these methods, you can streamline the logic involved in conditional aggregations.

Posted on 03/09/2025 16:00

Posted on 03/09/2025 13:00

This article outlines the process of appending data to files in C# using the WebHDFS API. It details the necessary steps, including creating a file, sending an initial POST request, handling redirections, and performing the append operation with proper data and headers. A code example is provided to illustrate the implementation. Troubleshooting insights are also shared for resolving potential data visibility issues after appending.

Posted on 03/09/2025 10:00

This article explained how to use a WPF DataGrid to display a collection of Items, with a ComboBox that allows users to select an ItemType for each Item. We created a ViewModel to manage the collections and established data bindings in XAML. Additionally, we ensured that properties of the selected ItemType are displayed immediately using TwoWay binding for the ComboBox. This setup ensures a responsive user interface for selecting and displaying related data.

Posted on 03/09/2025 00:00

This article discusses how to merge two sorted arrays in C# by leveraging loops. It outlines the necessary steps such as copying elements from one array to another and utilizing nested loops to maintain sorting. The provided code demonstrates the solution clearly, addressing a common interview problem from LeetCode. Readers can apply this method directly to solve the challenge effectively.

Posted on 03/08/2025 10:00

This article explains how ASP.NET Core's model binding works, particularly when type mismatches occur within an object. It details how submitting incompatible data types can lead to the entire model being null in controller actions. It also provides a solution by using `ModelState` to capture validation errors, allowing developers to identify which specific properties failed during binding. By implementing proper error handling, developers can return meaningful responses to the client, improving debugging and user experience.

Posted on 03/05/2025 16:00

In summary, we discussed how to implement a generic interface in C# using the example of `IFoo` and `Foo`. We demonstrated how to achieve the specified method signature in an interface while allowing for generic and concrete types in class implementation. It's important to follow the constraints set in the interface to ensure proper type safety and compatibility.

Posted on 03/01/2025 06:00

In this article, we explored how to use the `CorrelationIdActivityEnrichingProcessor` in OpenTelemetry to enrich all telemetry types with custom properties in C#. By configuring Azure Monitor and implementing a custom trace processor, we can seamlessly add a correlation ID from HTTP headers to telemetry data. This allows for better traceability in Application Insights, ensuring that important information is captured across all telemetry types.

Posted on 02/26/2025 22:00

This article discusses how to handle illegal characters in file names in C#. Instead of using multiple Replace() calls, a more efficient solution employing regular expressions is introduced. By using the Regex.Replace method, you can streamline your code to replace all illegal characters with a space, making it easier to manage and improve maintainability in file name sanitization.

Posted on 02/18/2025 02:00

This article describes how to use AutoMapper in C# to dynamically supply parameters to a mapping configuration. By creating a custom value resolver, developers can pass runtime parameters and accurately map fields from the source object to the destination object. This enables the flexible configuration of AutoMapper and can enhance the functionality of data transformation in applications.

Posted on 02/16/2025 01:00

This article explains how improper use of async/await in C# can lead to deadlocks, specifically when synchronous waiting methods like .Wait() are called on tasks. A code example illustrates the deadlock situation, with a clear explanation of how to fix it by using await in the event handler instead of blocking calls. By following the steps provided, developers can effectively manage asynchronous operations without leading to unresponsive applications.

Posted on 02/15/2025 12:00

This article discusses method inlining and optimization in C#. It presents an example consisting of Method1, which calls Method2, and explains how the C# compiler may handle these method calls. The conclusion is that while the compiler may optimize calls for efficiency, it does not automatically inline through multiple layers of method calls. Understanding these concepts can help developers write more efficient code in C#.