Question

i want to save a Stroke in a memorystream
for this purpose is used BinaryFormatter but when i try to serialize Stroke i get a error that i can’t serialize Stroke

is there any way to save a Stroke in a memorystream or serialize Stroke?

here is one part of my code

int size = inkCanvas1.Strokes.Count();
        IFormatter formatter = new BinaryFormatter();
        MemoryStream stream = new MemoryStream();
        if (size != 0)
        {
            try
            {
                formatter.Serialize(stream, inkCanvas1.Strokes[size - 1]);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

thanks.

Answer 1

The reason that this doesn’t work is that StrokeCollection doesn’t have the SerializableAttribute applied.

But you can use the StrokeCollection.Save method for this.

var ms = new MemoryStream();
using (ms)
{
    StrokeCollection sc = ...;
    sc.Save(ms);
    ms.Position = 0;
}

And then when you need the StrokeCollection again, you can use the constructor that accepts a Stream.