Generating code — is there an easy way to get a proper string representation of nullable type?

Question

So I\'m building an application that is going to do a ton of code generation with both C# and VB output (depending on project settings).

I\'ve got a CodeTemplateEngi

Answer 1

You can do this using CodeDom's support for generic types and the GetTypeOutput method:

CodeTypeReference ctr;
if (/* you want to output this as nullable */)
{
  ctr = new CodeTypeReference(typeof(Nullable<>));
  ctr.TypeArguments.Add(new CodeTypeReference(typeName));
}
else
{
  ctr = new CodeTypeReference(typeName);
}
string typeName = codeDomProvider.GetTypeOutput(ctr);

This will respect language-specific type keywords such as C# int or VB Integer, though it will still give you System.Nullable rather than int?.