protected SelectDiagramViewModel()
{
var storage = new DiagramStorage();
Names = storage.DiagramData.Select(x => x.Name).ToArray();
SelectedName = Names.FirstOrDefault();
}
private void OnCustomLoadDocument(object sender, DevExpress.Xpf.Diagram.DiagramCustomLoadDocumentEventArgs e)
{
if (e.DocumentSource == null)
{
diagram.NewDocument();
return;
}
var storage = new DiagramStorage();
var diagramInfo = storage.DiagramData.FirstOrDefault(x => x.Name == (string)e.DocumentSource);
if (diagramInfo != null)
{
diagram.LoadDocument(new MemoryStream(diagramInfo.Data));
}
e.Handled = true;
}
private void OnCustomSaveDocument(object sender, DevExpress.Xpf.Diagram.DiagramCustomSaveDocumentEventArgs e)
{
var storage = new DiagramStorage();
var diagramInfo = storage.DiagramData.FirstOrDefault(x => x.Name == (string)e.DocumentSource);
if (diagramInfo == null)
{
diagramInfo = new DiagramData()
{
Name = (string)e.DocumentSource
};
storage.DiagramData.Add(diagramInfo);
}
var stream = new MemoryStream();
diagram.SaveDocument(stream);
diagramInfo.Data = stream.ToArray();
storage.SaveChanges();
e.Handled = true;
}
