SharpDX.Direct2D1.Bitmap dispose crash on windows 8

i have fix this problem use your suggestion. this is my old code, it will crash when i dispose it randomly.

internal class Direct2DTexture2D : ITexture2D, ID2DResource
{
    internal SharpDX.Direct2D1.Bitmap Texture2D;

    internal Direct2DTexture2D(IRenderTarget InRenderTarget, Bitmap InBitmap)
    {
        Direct2DResourceManager.OnResourceCreate(this);
        Direct2DRenderTarget RT = InRenderTarget as Direct2DRenderTarget;

        Texture2D = CreateFromBitmap(RT.RenderTarget, InBitmap);
    }

    internal Direct2DTexture2D(IRenderTarget InRenderTarget, string InFilePath)
    {
        Direct2DResourceManager.OnResourceCreate(this);
        Direct2DRenderTarget RT = InRenderTarget as Direct2DRenderTarget;

        var bitmap = (System.Drawing.Bitmap)System.Drawing.Image.FromFile(InFilePath);

        Texture2D = CreateFromBitmap(RT.RenderTarget, bitmap);
    }

    private SharpDX.Direct2D1.Bitmap CreateFromBitmap(SharpDX.Direct2D1.RenderTarget InRenderTarget, Bitmap InBitmap)
    {

        using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
        {
            InBitmap.Save(ms, System.Drawing.Imaging.ImageFormat.Png);

            using (SharpDX.WIC.BitmapDecoder bitDecorder =
                new SharpDX.WIC.BitmapDecoder(Direct2DDrawingSystem.instance.ImagingFactory,
                ms,
                SharpDX.WIC.DecodeOptions.CacheOnDemand)
                )
            {
                using (SharpDX.WIC.BitmapFrameDecode bfDecode = bitDecorder.GetFrame(0))
                {
                    using (SharpDX.WIC.FormatConverter fConverter = new SharpDX.WIC.FormatConverter(Direct2DDrawingSystem.instance.ImagingFactory))
                    {
                        fConverter.Initialize(bfDecode, SharpDX.WIC.PixelFormat.Format32bppPBGRA, SharpDX.WIC.BitmapDitherType.None, null, 0, SharpDX.WIC.BitmapPaletteType.Custom);

                        return SharpDX.Direct2D1.Bitmap.FromWicBitmap(InRenderTarget, fConverter);
                    }
                }
            }
        }

    }

    public float width { get { return Texture2D.Size.Width; } }

    public float height { get { return Texture2D.Size.Height; } }

    public void Dispose()
    {
        Direct2DResourceManager.OnResourceDestroy(this);

        if (Texture2D!=null)
        {
            Texture2D.Dispose();
            Texture2D = null;
        }            
    }
}

this code use using command at around the code. the underline code works well on all platform, you can see it:

 internal class Direct2DTexture2D : ITexture2D, ID2DResource
{
    private System.IO.MemoryStream MemStream;
    private SharpDX.WIC.BitmapDecoder BitDecorder;
    private SharpDX.WIC.BitmapFrameDecode BFDecorde;
    private SharpDX.WIC.FormatConverter fConverter;

    internal SharpDX.Direct2D1.Bitmap Texture2D;

    internal Direct2DTexture2D(IRenderTarget InRenderTarget, Bitmap InBitmap)
    {
        Direct2DResourceManager.OnResourceCreate(this);
        Direct2DRenderTarget RT = InRenderTarget as Direct2DRenderTarget;

        CreateFromBitmap(RT.RenderTarget, InBitmap);
    }

    internal Direct2DTexture2D(IRenderTarget InRenderTarget, string InFilePath)
    {
        Direct2DResourceManager.OnResourceCreate(this);
        Direct2DRenderTarget RT = InRenderTarget as Direct2DRenderTarget;

        var bitmap = (System.Drawing.Bitmap)System.Drawing.Image.FromFile(InFilePath);

        CreateFromBitmap(RT.RenderTarget, bitmap);
    }

    private void CreateFromBitmap(SharpDX.Direct2D1.RenderTarget InRenderTarget, Bitmap InBitmap)
    {
        MemStream = new System.IO.MemoryStream();
        InBitmap.Save(MemStream, System.Drawing.Imaging.ImageFormat.Png);
        BitDecorder = new SharpDX.WIC.BitmapDecoder(Direct2DDrawingSystem.instance.ImagingFactory,
                            MemStream,
                            SharpDX.WIC.DecodeOptions.CacheOnDemand);

        BFDecorde = BitDecorder.GetFrame(0);

        fConverter = new SharpDX.WIC.FormatConverter(Direct2DDrawingSystem.instance.ImagingFactory);

        fConverter.Initialize(BFDecorde, SharpDX.WIC.PixelFormat.Format32bppPBGRA, SharpDX.WIC.BitmapDitherType.None, null, 0, SharpDX.WIC.BitmapPaletteType.Custom);

        Texture2D = SharpDX.Direct2D1.Bitmap.FromWicBitmap(InRenderTarget, fConverter);
    }

    public float width { get { return Texture2D.Size.Width; } }

    public float height { get { return Texture2D.Size.Height; } }

    public void Dispose()
    {
        Direct2DResourceManager.OnResourceDestroy(this);

        if (Texture2D!=null)
        {
            Texture2D.Dispose();
            Texture2D = null;
        }            

        if(fConverter!=null)
        {
            fConverter.Dispose();
            fConverter = null;
        }

        if(BFDecorde != null)
        {
            BFDecorde.Dispose();
            BFDecorde = null;
        }

        if(BitDecorder!=null)
        {
            BitDecorder.Dispose();
            BitDecorder = null;
        }

        if(MemStream!=null)
        {
            MemStream.Dispose();
            MemStream = null;
        }
    }
}

this code show how to create a direct2d image from a C# bitmap by sharpdx.