public bool Initialize(SharpDX.Direct3D11.Device device, string fileName)
{
  try
  {
    using (var texture = LoadFromFile(device, new SharpDX.WIC.ImagingFactory(), fileName))
    {
      ShaderResourceViewDescription srvDesc = new ShaderResourceViewDescription()
      {
        Format = texture.Description.Format,
        Dimension = SharpDX.Direct3D.ShaderResourceViewDimension.Texture2D,
      };
      srvDesc.Texture2D.MostDetailedMip = 0;
      srvDesc.Texture2D.MipLevels = -1;

      TextureResource = new ShaderResourceView(device, texture, srvDesc);
      device.ImmediateContext.GenerateMips(TextureResource);
    }
    // TextureResource = ShaderResourceView.FromFile(device, fileName);
    return true;
  }
  catch
  {
    return false;
  }
}

public Texture2D LoadFromFile(SharpDX.Direct3D11.Device device, ImagingFactory factory, string fileName)
{
  using (var bs = LoadBitmap(factory, fileName))
    return CreateTexture2DFromBitmapSource(device, bs);
}

public BitmapSource LoadBitmap(ImagingFactory factory, string filename)
{
  var bitmapDecoder = new SharpDX.WIC.BitmapDecoder(
      factory,
      filename,
      SharpDX.WIC.DecodeOptions.CacheOnDemand
      );

  var result = new SharpDX.WIC.FormatConverter(factory);

  result.Initialize(
      bitmapDecoder.GetFrame(0),
      SharpDX.WIC.PixelFormat.Format32bppPRGBA,
      SharpDX.WIC.BitmapDitherType.None,
      null,
      0.0,
      SharpDX.WIC.BitmapPaletteType.Custom);

  return result;
}

 public Texture2D CreateTexture2DFromBitmapSource(SharpDX.Direct3D11.Device device, BitmapSource bitmapSource)
{
  // Allocate DataStream to receive the WIC image pixels
  int stride = bitmapSource.Size.Width * 4;
  using (var buffer = new SharpDX.DataStream(bitmapSource.Size.Height * stride, true, true))
  {
    // Copy the content of the WIC to the buffer
    bitmapSource.CopyPixels(stride, buffer);
    return new SharpDX.Direct3D11.Texture2D(device, new SharpDX.Direct3D11.Texture2DDescription()
    {
      Width = bitmapSource.Size.Width,
      Height = bitmapSource.Size.Height,
      ArraySize = 1,
      BindFlags = SharpDX.Direct3D11.BindFlags.ShaderResource | BindFlags.RenderTarget,
      Usage = SharpDX.Direct3D11.ResourceUsage.Default,
      CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.None,
      Format = SharpDX.DXGI.Format.R8G8B8A8_UNorm,
      MipLevels = 1,
      OptionFlags = ResourceOptionFlags.GenerateMipMaps, // ResourceOptionFlags.GenerateMipMap
      SampleDescription = new SharpDX.DXGI.SampleDescription(1, 0),
    }, new SharpDX.DataRectangle(buffer.DataPointer, stride));
  }
}