Once again I decided to make a new task from LeetCode and finally my process had been stopped. I could not convert Char to Int. I even spent some time for research, but I could not find any solution. Then I open the documentation and started to read.

It's not for production, but for developer environments

Add the block below to Program.cs. I talk about Net Core 5 or Net Core 6 application.

 // global cors policy
            app.UseCors(x => x
                .AllowAnyMethod()
                .AllowAnyHeader()
                .SetIsOriginAllowed(origin => true) // allow any origin
                .AllowCredentials()); // allow credentials

I created an application which rendered a report in HTML. To improve it, I wanted it to open the rendered file in browser to simplify the viewing one. In the beginning I thought about using the CMD file, but I found a better solution.

In my application I had rendered JSON data with AngularJS and I had to send it to a controller in my MVC application to render PDF file and to allow a user to save it. So, the task was dynamically to submit the request, render a file and allow user to save it.

StreamWriter has some options of usage. You can as add new text to an existing text in file, so and to clean existing text and add a new one.

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C# snippet below helps to read SQL data to List<T> generic collection without any extensions or frameworks only with SQL and LINQ.

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Junior developer created some tools which packed to zip-archive some rendered files. He used for this DotNetZip (Ionic.Zip) library. Everything worked fine until today. But today, when users users tried to open zip-file, they've got the error "CRC has failed, the file is corrupt".
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You can get list of available NuGet packages for Visual Studio using Package Manager Console (in VS – Tools / NuGet Package Manager / Package Manager Console).

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Here's a useful snippet in C#. This method gets all the images from variable type String. It can be HTML or XML text with tags <img src="path_to_image">

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Reading and querying XML data is good with Link to XML in C#. LINQ to XML provides an in-memory XML programming interface that leverages the .NET Language-Integrated Query (LINQ) Framework.

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