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C# Visual Studio 2019 Create DLL

Really simple to create a DLL in VS2019

File --> New Project --> in the search box type DLL otherwise you'll have to scroll through loads of options

Choose the C# Class Library - unless ya wanna do it in VB.

Give the project a name, preferable summat relevant. Also choose the .NET Framework. Might be best to wind it back if you aint sure where it's going to end up.

Go to Create then you'll be presented with

And away you go...WAIT. Here's an example to get you going.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MasterDLL
{
    public static class Class1
    {
        public static string MyHello()
        {
            string x = "Hello World";
            return x;
        } 
    }
}

The mistake I made was to not insert the "static". Dunno what it means but it works now.

To create the DLL 

Build --> Build Solution

You'll find your DLL in the folder listed in the output 

Drop this into your Bin folder of the web page and add a "using..." and away ya go.

 

 

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