WPF 圖片載入的問題 [找不到關於此像素格式的資訊]

暫時無解
DD.Source = Imgbmp '為何此行取消，就會有問題?

DD是一個既有的標籤物件。程式碼若不加上這一行，就會出現[找不到關於此像素格式的資訊]

Sub GenTelphone()

'讀取 BitmapImage
Dim Imgbmp As BitmapImage = New BitmapImage()
Dim ImgBrh As ImageBrush = New ImageBrush()
Imgbmp = New BitmapImage(New Uri("\image\mobile.gif", UriKind.RelativeOrAbsolute))



DD.Source = Imgbmp '為何此行取消，就會有問題?



Dim i As Integer

For i = 1 To 9

Dim Tb As New TextBlock

Dim img As New Image
img.Source = Imgbmp
img.Name = "Img" & i.ToString

Tb.Name = "Tbk" & i.ToString

Tb.TextAlignment = TextAlignment.Center '字型置中
Tb.Inlines.Add(img)


'在第一個段落後 增加 段落字元
Tb.Inlines.InsertAfter(Tb.Inlines.FirstInline, New LineBreak)

Tb.Inlines.Add(New Run("顯示資訊" & i.ToString))

Canvas.SetLeft(Tb, 50 * i)
Canvas.SetTop(Tb, 50 * i)


Canvas.SetZIndex(Tb, 25) '數字愈大，愈上層
Canvas.SetZIndex(Ln, 20)

'Canvas.SetLeft(img, 50 * i)
'Canvas.SetTop(img, 50 * i)
Tb.ToolTip = "我的NAME是 " & vbCrLf & vbCrLf & Tb.Name

MYCS.Children.Add(Tb)
Next



End Sub