R – Sharepoint Designer – Creating a simple Workflow, check status of another Workflow

If I understand your question you have a workflow that starts on add or change. But there are some circumstances where the item changes where you do not want the workflow to start. You cannot start the workflow in code because you need end users to add your workflow to lists themselves.

The only option then is to have the first activity in the workflow do checks to see if the workflow instance should be running. If not, exit the workflow instance. If you're building the workflow in SharePoint Designer and don't have such an activity you can build a custom activity for this in Visual Studio 2008 and then use that with SharePoint Designer. If you are building the whole workflow in Visual Studio 2008 then you can create a custom activity in Visual Studio to use with it.

I found this:

private static string ToLiteral(string input)
{
    using (var writer = new StringWriter())
    {
        using (var provider = CodeDomProvider.CreateProvider("CSharp"))
        {
            provider.GenerateCodeFromExpression(new CodePrimitiveExpression(input), writer, null);
            return writer.ToString();
        }
    }
}

This code:

var input = "\tHello\r\n\tWorld!";
Console.WriteLine(input);
Console.WriteLine(ToLiteral(input));

Produces:

    Hello
    World!
"\tHello\r\n\tWorld!"