Question

I’m trying to concatenate some data within a foreach iterator within a using block. Unfortunately, for some reason, any statements I insert into (or after) the using block after the foreach fail to fire.

Source:

static void sensor_DepthFrameReady(object sender, DepthImageFrameReadyEventArgs e)
{
    using (var depthFrame = e.OpenDepthImageFrame())
    {          
        if (depthFrame == null)
            return;
        short[] bits = new short[depthFrame.PixelDataLength];
        string bitString = "0";
        depthFrame.CopyPixelDataTo(bits);
        foreach (var bit in bits)
        {
            bitString += bit.ToString();
            Console.Write("This fires.");
        }
        Console.Write("This never fires and I don't know why.");
        Program.Broadcast(bitString); //this also fails to fire.
    }
    Console.Write("This never fires either.");
}

Answer 1

Maybe the foreach takes too long? try using StringBuilder.

        StringBuilder bitString = new StringBuilder("0");
        depthFrame.CopyPixelDataTo(bits);
        foreach (var bit in bits)
        {
            sb.Append(bit.ToString();
        }
        Program.Broadcast(bitString.ToString());