C# Base64 String to PNG Image

Here’s how you can save a base64 encoded string to image file in C#. public void SaveImageFile(string filename, string base64Image) { string destinationImgPath = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + Constants.UserImagesPath+"\\"+filename+".png"; try { Directory.CreateDirectory(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + Constants.UserImagesPath); } catch (IOException iox) { Console.WriteLine(iox.Message+" "+iox.Data); } var bytes = Convert.FromBase64String(base64Image); using (var imageFile = new FileStream(destinationImgPath, FileMode.Create)) { imageFile.Write(bytes, 0, bytes.Length); […]

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How to Calculate the Difference in Months Between two Dates C#

This code snippet lets you calculate the difference in months between two dates. If all you want is simply a difference in the months -completely disregarding the date values- then you can use this: public static int MonthDifference(this DateTime lValue, DateTime rValue) { return (lValue.Month – rValue.Month) + 12 * (lValue.Year – rValue.Year); } Note […]

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How to Hide and Show the Console Window Associated with your own C# app?

Here’s how: Add a reference to InteropServices in your class. using System.Runtime.InteropServices; Next, define two function signatures GetConsoleWindow and ShowWindow. These functions use kernel32.dll and user32.dll respectively. [DllImport(“kernel32.dll”)] static extern IntPtr GetConsoleWindow(); [DllImport(“user32.dll”)] static extern bool ShowWindow(IntPtr hWnd, int nCmdShow); const int SW_HIDE = 0; const int SW_SHOW = 5; Finally, use these functions as […]

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How to get the Month Name in C#?

You can use the CultureInfo to get the month name. Another way is to use extension methods. Here is an example of how to do it using extension methods: Add a DateTimeExtensions class to your project. static class DateTimeExtensions { public static string ToMonthName(this DateTime dateTime) { return CultureInfo.CurrentCulture.DateTimeFormat.GetMonthName(dateTime.Month); } public static string ToShortMonthName(this DateTime […]

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Retrieve File Size From Remote URL using C#

The system API class System.Net.HttpWebRequest allows you to retrieve the file information programmatically. The size of each file/page generally available in the header section of web response, which you can query to get it. Header contains Content-Length property value which gives you the size of the file in bytes. This you can later calculate to […]

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