RoslynCodeSnippet_5.cs

private Script userScript;

private void CompileScript()
{
    UpdateSource(); //Handles creating a copy of the script which includes variables the user never sees.
    string text = csSource.Text; //csSource is an object from the UI provider
    
  	userScript = CSharpScript.Create(text, options: userScriptOptions);
    userScript.Compile(); 

  	//Validation class
    ScriptValidator scriptValidator = new ScriptValidator(userScript);

    if(!scriptValidator.IsValid)
    {
        MessageBox.Show($"Found {scriptValidator.Errors.Count()} illegal APIs in script.", "Build Error");
    	userScript = null;
    }
}