protected override void Seed(DiagramStorage storage)
{
base.Seed(storage);
var diagram = new DiagramControl();
for (int i = 0; i < 5; i++)
{
diagram.Items.Add(new DiagramShape()
{
Position = new Point(200, 100 + i * 100),
Width = 100,
Height = 50,
Content = "Item " + (i + 1).ToString(),
});
if (i == 0)
{
continue;
}
using (var stream = new MemoryStream()) {
diagram.SaveDocument(stream);
var diagramData = new DiagramData()
{
Name = (i + 1).ToString() + " items",
Data = stream.ToArray(),
};
storage.DiagramData.Add(diagramData);
}
}
storage.SaveChanges();
}
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;
}