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DockPanel ImageOption.Image is not showing the image

I'll make it short,
My problem is: The image that i want to set in my DockPanel as icon is not showing.
Here is my Code
DockPanel dock = new DockPanel();
dock.ImageOption.Image = <Bitmap image here>; //
dock.Controls.Add(UserControl1);
UserControl1.MyDockPanel = dock;
Any expert opionion here?
Thanks

You can add image to DockPanel in the cs like this:
DockPanel dock = new DockPanel();
BitmapImage myBitmapImage = new BitmapImage();
myBitmapImage.BeginInit();
myBitmapImage.UriSource = new Uri("...\\ico_48.ico", UriKind.RelativeOrAbsolute);
myBitmapImage.DecodePixelWidth = 2048;
myBitmapImage.EndInit();
Image image = new Image();
image.Source = myBitmapImage;
dock.Children.Add(image);
Content = dock;

Windows Phone download images - corrupted

When I download image and display it in an ImageView the image is half corrupted.
BitmapImage bi = new BitmapImage(new Uri(
"http://xxx.xxx.xxx/chatstickerzWinPhone/get_file_from_mysql.php?id="
+ getRandomNumber()));
bi.DownloadProgress += handlerDownloadProgress;
Image i = new Image();
i.Tag = iss + "_random_doodle";
//i.DoubleTap += new EventHandler<System.Windows.Input.GestureEventArgs>(clcoRandomDoodle);
i.Hold += new EventHandler<System.Windows.Input.GestureEventArgs>(clcoRandomDoodle);
i.Width = 440;
i.Height = 300;
//Background = new ImageBrush { ImageSource = bi };
//i.Background = Background;
i.Source = bi;
above is my code to download image.

Use event handler for BitmapImage
public virtual event EventHandler DownloadCompleted
In the handler, use Dispatcher.BeginInvoke() to set the image source of Image.

How to center an image used as Grid Background through C# code?

I'm trying to set a Grid's backgroud through code.
The Grid has 1000 x 1000 size, the same size of the loaded PNG.
I load this PNG into a Stream, then execute the following code:
using (StreamWrapper wrapper = new StreamWrapper(streamImg))
using (BinaryReader reader = new BinaryReader(wrapper))
{
originalImage = new BitmapImage();
originalImage.BeginInit();
originalImage.CacheOption = BitmapCacheOption.OnLoad;
originalImage.StreamSource = reader.BaseStream;
originalImage.EndInit();
originalImage.Freeze();
}
ib = new ImageBrush() { ImageSource = ConvertToGrayScale(ref originalImage) };
grdQuebraCabeça.Background = ib;
private FormatConvertedBitmap ConvertToGrayScale(ref BitmapImage image)
{
FormatConvertedBitmap grayImage = new FormatConvertedBitmap();
grayImage.BeginInit();
grayImage.Source = image;
grayImage.DestinationFormat = PixelFormats.Gray32Float;
grayImage.EndInit();
return grayImage;
}
The following screenshot is the result:
You can see black blocks on lower and right sides.
I want to center the image in the grid.
Is that possible? How can I achieve this result?

Using taglib to display the cover art in a Image box in WPF

I'm making a player and I'm stuck in a apparently simple problem.
I need to make the cover art of the song to be displayed in one Image box.
I found these two solutions:
This:
var file = TagLib.File.Create(filename);
if (file.Tag.Pictures.Length >= 1)
{
var bin = (byte[])(file.Tag.Pictures[0].Data.Data);
PreviewPictureBox.Image = Image.FromStream(new MemoryStream(bin)).GetThumbnailImage(100, 100, null, IntPtr.Zero);
}
and this:
System.Drawing.Image currentImage = null;
// In method onclick of the listbox showing all mp3's
TagLib.File f = new TagLib.Mpeg.AudioFile(file);
if (f.Tag.Pictures.Length > 0)
{
TagLib.IPicture pic = f.Tag.Pictures[0];
MemoryStream ms = new MemoryStream(pic.Data.Data);
if (ms != null && ms.Length > 4096)
{
currentImage = System.Drawing.Image.FromStream(ms);
// Load thumbnail into PictureBox
AlbumArt.Image = currentImage.GetThumbnailImage(100,100, null, System.IntPtr.Zero);
}
ms.Close();
}
But both are to Windows Forms, I suppose, because I have problems with them.
I'm not sure which solution makes the most sense. Could anyone give me some pointers?

Use System.Windows.Controls.Image to display your images on UI. You must set it's Source property in order to provide image data to render on UI.
// Load you image data in MemoryStream
TagLib.IPicture pic = f.Tag.Pictures[0];
MemoryStream ms = new MemoryStream(pic.Data.Data);
ms.Seek(0, SeekOrigin.Begin);
// ImageSource for System.Windows.Controls.Image
BitmapImage bitmap= new BitmapImage();
bitmap.BeginInit();
bitmap.StreamSource = ms;
bitmap.EndInit();
// Create a System.Windows.Controls.Image control
System.Windows.Controls.Image img = new System.Windows.Controls.Image();
img.Source = bitmap;
Then you can add/place this Image control to UI.

Update image file from parallel Task issue

I use this code to populate WPF Image Control.
string pathToImage = System.IO.Path.Combine(Settings.ContentFolderPath, file);
Image image = new Image();
BitmapImage src = new BitmapImage();
src.BeginInit();
src.UriSource = new Uri(pathToImage, UriKind.Absolute);
src.EndInit();
double ratio = src.Width / src.Height;
image.Source = src;
image.Stretch = Stretch.Uniform;
image.Height = marquee1.Height;
image.Width = marquee1.Height * ratio;
lstItems.Items.Add(image);
Also I have some parallel Task to update this image file.
But when I try to delete it I am getting the error: File is busy by other process you cannot delete this file.
How to resolve this issue?
Thank you!
UPDATES
So thank you all of you!
The final solution needs to implement
src.CacheOption = BitmapCacheOption.OnLoad;
src.CreateOptions = BitmapCreateOptions.IgnoreImageCache;
the working code looks like
Image image = new Image();
BitmapImage src = new BitmapImage();
src.BeginInit();
src.CacheOption = BitmapCacheOption.OnLoad;
src.CreateOptions = BitmapCreateOptions.IgnoreImageCache;
src.UriSource = new Uri(pathToImage, UriKind.Absolute);
src.EndInit();
double ratio = src.Width / src.Height;
image.Source = src;
image.Stretch = Stretch.Uniform;
image.Height = marquee1.Height;
image.Width = marquee1.Height * ratio;
lstItems.Items.Add(image);
result = image.Width;

MSND BitmapImage.CacheOption says:
Set the CacheOption to BitmapCacheOption.OnLoad if you wish to close a
stream used to create the BitmapImage.
Set the BitmapImage.CacheOption to OnLoad:
BitmapImage src = new BitmapImage();
src.BeginInit();
src.UriSource = new Uri(pathToImage, UriKind.Absolute);
src.CacheOption = BitmapCacheOption.OnLoad;
src.EndInit();

Set the CacheOption property of the BitmapImage to BitmapCacheOption.OnLoad. This will cause it to load the image into memory and close the original file, which should allow you to delete it.

Also I have some parallel Task to update this image file ... when I try to delete it I am getting the error
In general, you can't delete a Windows file while a process is using it. The consumer Windows FAQs include this page to describe this restriction. And as MSDN describes, File.Delete will refuse to delete a file that's in use.