.NET GENES

Good evening, Recently, I encountered an error called "The type or namespace name 'Xamarin' could not be found (are you missing a using directive or an assembly reference?)" when running my simple Xamarin Forms application in Visual Studio 2019 which is the output of the training I attended with. It seems that the project is missing some references and when running the solution, the project was unable to download the missing assemblies. After investigating the problem, I found the culprit. Our custom Nuget packages were located in a server which has been turned off due to system upgrades and these files will be moved to a new location. So to fix the issue I had to perform the steps below: 1. Temporarily unchecked our custom built packages in Package Sources of Package Manager Settings since our server that contains those packages was turned off for system maintenance and the projects including the packages will be moved to a new location. 2. Run the command &q

Hello all! You may have noticed that the trend in adding components or dll's to a project is through a technology called NuGet Package and with that I'll demonstrate on how to create a simple C# Library NuGet package using Visual Studio 2017. Below are the steps to follow. 1. First is to create a C# class library project called StringLib and add a class with a single method to convert the first letter of a string to uppercase. public class ToUpperCase { /// <summary> /// Change first letter to uppercase /// </summary> public string ToUpperFirstLetter ( string s) { if ( string .IsNullOrEmpty(s)) { return string .Empty; } char [] a = s.ToCharArray(); a[ 0 ] = char .ToUpper(a[ 0 ]); return new string (a); } } 2. Build the project to generate a .dll file. 3. Copy the .dll or any files to be included