图片：当在服务器上托管打开页面但在本地工作时，gdi +中发生了一般性错误

我正在从数据库中获取字节，并将其转换为图像，并将其发布到asp:image；尽管页面在本地正常工作，但是当页面托管在服务器中时，它不起作用。为什么会这样呢？这也不是JS错误，很可能是一个例外。

错误：gdi +中发生一般错误

ASP VB.NET代码

 ds = objPicturess.GetALLPicturesByCategoryIdnCusId(dplCustomer.SelectedValue, dplCategory.SelectedValue, dtpFromDate.Date, dtpToDate.Date)
                If ds.Tables(0).Rows.Count <> 0 Then
                    For i = 0 To ds.Tables(0).Rows.Count - 1
                        Dim imageContent As Byte() = DirectCast((ds.Tables(0).Rows(i)("Picture")), Byte())
                        byteArrayToImage(imageContent, ds.Tables(0).Rows(i)("PictureTitle"), ds.Tables(0).Rows(i)("Remarks"))
                        'Response.BinaryWrite(imageContent)
                    Next
                    DataList1.DataSource = dt
                    DataList1.DataBind()
                Else
                    DataList1.DataSource = Nothing
                    DataList1.DataBind()
                End If

Public Sub byteArrayToImage(ByVal byteArrayIn As Byte(), ByVal strFile_Name As String, ByVal strRemarks As String)
        Try

            Dim newImage As System.Drawing.Image
            Dim strFileName2 As String
            strPictureTitle = ""
            strPictureTitle = strFile_Name
            strFileName = ""
            strFileName = "~/PictureGallery/" & strFile_Name & ".jpg"
            strFileName2 = Server.MapPath("~/PictureGallery/" & strFile_Name & ".jpg")
            Dim f As New IO.FileInfo(strFileName)
            If Not f.Exists Then
                Using stream As New MemoryStream(byteArrayIn)
                    newImage = System.Drawing.Image.FromStream(stream)
                    newImage.Save(strFileName2)
                End Using
            End If
            dr = dt.NewRow()
            dr("PictureTitle") = strPictureTitle
            dr("Picture") = strFileName
            dr("Remarks") = strRemarks
            dt.Rows.Add(dr)

        Catch ex As Exception
            ScriptManager.RegisterClientScriptBlock(Page, Page.GetType(), "message", "alert('" + ex.Message + "');", True)
        End Try
    End Sub

ASPx代码

 <ItemTemplate>
      <asp:Label ID="Label1" runat="server" Font-Bold="True" Text ='<%# Eval("PictureTitle")%>'

         Font-Size="10pt" ForeColor="#336699" Width="100%" />
      <br /> 
     <asp:ImageMap  BorderWidth="1px" BorderColor="Black" runat="server" Height = "175px" ID="imageZoom" Width = "172px" ImageUrl= '<%# Eval("Picture")%>'   StyleFolder="styles/simple"  BigImageUrl='<%# Eval("Picture")%>'/>
     <br />
     <asp:Label ID="lblRemarks" runat="server" Font-Bold="True" Text ='<%# Eval("Remarks")%>' Font-Size="10pt" ForeColor="#336699" Width="100%" /> 

   </ItemTemplate>