public async Task <IActionResult> OnPostAsync(string title)
{
var data = new byte[40000];
Array.Fill(data, (byte)0xff);
var painting = new Painting {
Title = title, Data = data
};
db.Paintings.Add(painting);
await db.SaveChangesAsync();
return(Redirect($"~/Canvas/{painting.Id}"));
}
public async Task <IActionResult> SaveAsync(int id)
{
var buf = new byte[40000];
using (MemoryStream ms = new MemoryStream(buf))
{
await Request.Body.CopyToAsync(ms);
}
var painting = new Painting {
Id = id, Data = buf
};
var entry = db.Paintings.Attach(painting);
entry.Property(p => p.Data).IsModified = true;
await db.SaveChangesAsync();
return(Ok());
}