Code Convert Visual Studio Add-in for C# and VB.NET

• Download source - 744.52 KB

Introduction

This solution contains an add-in project for Visual Studio.

The add-in adds a button to the tools menu for converting VB.NET code from and to C#.

The solution also contains a set up project for the add-in.

Background

I created this project as part of my efforts to study add-in programming. I chose code conversion because I couldn't find one that enables conversion from C# to VB.NET and from VB.NET to C# easily enough.

The add-in uses an external service which can be found here.

You can easily change the provider or use local code (if you have it - I couldn't find a good example for a local converter and that is why I used the external service).

Note: You must be connected to the Internet in order to use the add-in while it's using the external service.

Using the Code

This is the Exec method which runs whenever the user hits the button:

//
public void Exec(string commandName, vsCommandExecOption executeOption, 
		ref object varIn, ref object varOut, ref bool handled)
    {
        try
        {
            handled = false;
            if (executeOption == vsCommandExecOption.vsCommandExecOptionDoDefault)
            {
                if (commandName == "CodeConvert.Connect.CodeConvert")
                {
                    handled = true;
                    string url = 
		       "http://www.carlosag.net/Tools/CodeTranslator/Translate.ashx";
                    string parameters = String.Empty;
                    string remark = String.Empty;
                    string code = Clipboard.GetData(DataFormats.Text).ToString();
                    if (_applicationObject.ActiveDocument.Name.EndsWith("cs"))
                    {
                        remark = "//C# converted code, conversion by: 
                        	http://www.carlosag.net/Tools/CodeTranslator/ " + 
			                Environment.NewLine;
                        parameters = "Code=" + System.Web.HttpUtility.UrlEncode(code) + 
				"&Language=VB&DestinationLanguage=C#";
                    }
                    else if (_applicationObject.ActiveDocument.Name.EndsWith("vb"))
                    {
                        remark = "'VB.NET converted code, conversion by: 
			            http://www.carlosag.net/Tools/CodeTranslator/" + 
			            Environment.NewLine;
                        parameters = "Code=" + System.Web.HttpUtility.UrlEncode(code) + 
				"&Language=C#&DestinationLanguage=VB";
                    }
                    if (remark != String.Empty)
                    {
                        string result = HttpWebRequestHttpPost(url, parameters);
                        ((TextSelection)_applicationObject.ActiveDocument.Selection)
                               .Text = remark + result + Environment.NewLine; ;
                    }
                    else
                    {
                        MessageBox.Show
			("CodeConvert can be used for .vb or .cs files only");
                    }
                    return;
                }
            }
        }
        catch (Exception ex)
        {
            MessageBox.Show("Error:" + ex.Message);
            return;
        }    
    }
// 

The add-in knows what to convert to by the current file extension - so when you want to convert VB.NET to C#, you need to be in a *.cs file pasting VB.NET code and when trying to convert C# to VB.NET, you need to be in a *.vb file pasting C# code (pasting -> hitting the button with the original code in your clipboard).

Example

Enjoy!

History

• 20^th November, 2007: Initial post