.DrawToBitmap保存的图像无法在IE浏览器中打开

Question

下面的代码将填充的表单另存为.JPG图像。但是，它需要能够在IE浏览器中打开。未通过代码生成的任何其他.JPG图像都会打开，如果我更改代码以另存为.png，它也会在IE浏览器中打开。我需要对.JPG / .JPEG做一些特殊的事情吗？

代码：

Private Sub btnImage_Click(sender As Object, e As EventArgs) Handles btnImage.Click
    Dim dialog As New FolderBrowserDialog()
    dialog.RootFolder = Environment.SpecialFolder.Desktop
    dialog.SelectedPath = ""
    dialog.Description = "Select Save Location"
    If dialog.ShowDialog() = DialogResult.OK Then
        Savepath = dialog.SelectedPath
        SaveName = txtPN.Text
        If Not SaveName = "" Then

            Using bm As New Bitmap(HUD.pnlMain.Width, HUD.pnlMain.Height, Imaging.PixelFormat.Format16bppRgb555)

                HUD.pnlMain.DrawToBitmap(bm, New Rectangle(0, 0, bm.Width, bm.Height))

                bm.Save(Savepath & "\" & SaveName & ".JPG") '.PNG

            End Using
            MsgBox("Image was saved as " & SaveName & " at " & Savepath)
        Else

            Exit Sub
        End If

        Exit Sub
    End If
End Sub

我明白了：

Answer 1

也许您应该尝试passing the format。

bm.Save(Savepath & "\" & SaveName & ".JPG", System.Drawing.Imaging.ImageFormat.Jpeg)

此外，您可以使用Path class创建文件的完整路径。