public async void UpdatePreview(string text)
{
var workspace = new PreviewWorkspace(Ide.Composition.CompositionManager.Instance.HostServices);
var fileName = string.Format("project.{0}", Language == "C#" ? "csproj" : "vbproj");
project = workspace.CurrentSolution.AddProject(fileName, "assembly.dll", Language);
// use the mscorlib, system, and system.core that are loaded in the current process.
string [] references =
{
"mscorlib",
"System",
"System.Core"
};
var metadataService = workspace.Services.GetService <IMetadataService> ();
var referenceAssemblies = Thread.GetDomain().GetAssemblies()
.Where(x => references.Contains(x.GetName(true).Name, StringComparer.OrdinalIgnoreCase))
.Select(a => metadataService.GetReference(a.Location, MetadataReferenceProperties.Assembly));
project = project.WithMetadataReferences(referenceAssemblies);
var document = project.AddDocument("document.cs", SourceText.From(text, Encoding.UTF8));
var formatted = Formatter.FormatAsync(document, this.Options).WaitAndGetResult(CancellationToken.None);
workspace.TryApplyChanges(project.Solution);
TextViewHost.MimeType = "text/x-csharp";
TextViewHost.Text = (await document.GetTextAsync()).ToString();
TextViewHost.DocumentContext = new MyDocumentContext(workspace, document);
TextViewHost.IsReadOnly = false;
for (int i = 1; i <= TextViewHost.LineCount; i++)
{
var txt = TextViewHost.GetLineText(i);
if (txt == "//[" || txt == "//]")
{
var line = TextViewHost.GetLine(i);
TextViewHost.RemoveText(line.Offset, line.LengthIncludingDelimiter);
i--;
}
}
TextViewHost.IsReadOnly = true;
if (curWorkspace != null)
{
curWorkspace.Dispose();
}
this.curWorkspace = workspace;
}