- developerFusion's Convert C# to VB.NET - This is probably the most well know site and referenced most often. I typically start with this one: http://www.developerfusion.com/tools/convert/csharp-to-vb/
- Code Converter Provided by Telerik - This is another great and stable converter online. I typically go to this one if the code to convert is complex or there were any issues with the converter: http://converter.telerik.com/
- KamalPatel.Net - Convert C# to VB .NET - Several years ago I used this one as the defacto converter, but somewhere along the lines the code I was converting was getting too complex, or the site was not upkept anymore because it shows issues converting often. I now come here lastly: http://www.kamalpatel.net/ConvertCSharp2VB.aspx
Now, one of the issues all the converters seem to have issue with is .NET Lambda Expressions. Recently, I have found several powerful code snippets in C# including Labmda expressions that none of the converters would convert properly. This code will need a little extra help in getting it converted. Below I have a brief example of a C# Labmda expression and the equivelent VB.NET code that I had to modify. Hopefully, this code will help guide readers to get started with a proper conversion of Lambda expressions.
The C# version:
.Aggregate(new StringBuilder(), (sb, node) => sb.Append(node.ToString()), sb => sb.ToString());
The VB.NET version:
.Aggregate(New StringBuilder(), Function(sb, node) sb.Append(node.ToString()), Function(sb) sb.ToString())
Both code examples take use of passing values to a function to shorthand the return, however in VB.NET the syntax is more explicit with the 'Function' statement being required. A good reference for Lambda expressions for each language can be found below.
Lambda Expressions (VB.NET):
Lambda Expressions (C#):
This was by no means a full entry on .NET Lambda expressions, but I just wanted to briefly highlight some of the differences syntactically between the (2) languages, and where the converters may have issue with more complex code.