comexception

问题 try { // call to Com Method } catch (COMException e) { if (e.ErrorCode == 0x80040154) // REGDB_E_CLASSNOTREG. { // handle this error. } } I would like to check if com exception is thrown due to REGDB_E_CLASSNOTREG then handle it. I tried with the code above but it gives warning: Comparison to integral constant is useless; the constant is outside the range of type 'int' I believe this error is due to 0x80040154 is not in Int32 range. Can you suggest any possible solution? or Is there any other

问题 I'm currently using the line chart (from WinRT XAML Toolkit), and I'm facing a problem : everything goes right, but if my (In)DependentValue which is bound to my LineSeries contains a change notification (INotifyPropertyChanged), the toolkit raise a COMException. I used the last version (1.4.1) of the toolkit from Nuget. My XAML code : <toolkitchart:Chart x:Name="AltitudeChart" Height="200"> <toolkitchart:LineSeries IndependentValueBinding="{Binding Distance}" DependentValueBinding="{Binding

问题 I'm trying to communicate with dlna compliant devices using a C#.net application, using the UPnP protocol. I'm using the default Visual studio UPnP library("UPnP 1.0 type library (control point)"). I list all rendering devices using UPNPDeviceFinder.FindByType. All works fine... Now I get the AVTransport service using the function: public UPnPService GetAVTransport(UPnPDevice mediaDevice) { foreach (UPnPService service in mediaDevice.Services) { Debug.Print(service.ServiceTypeIdentifier); if

问题 I have an application which opens an Visio file .VSD and copies some jpeg images onto the VSD file. I am using Visio 2013, it works fine with this version but I have another client machine where I have only exe of this application(not complete code base) and has Visio 2010 in that client machine. when I run the application and select the Visio .vsd file, it throw the above subjected error. Struggling to understand whether problem with exe, code, version or dlls? May I know what could be the

问题 We developed a WebPart to read the content of the file in the document library in the SiteCollection. I used the following code to read the content. WebClient wc = new WebClient(); wc.Credentials = CredentialCache.DefaultNetworkCredentials; string documenturl = siteurl+"/" + file.Url.ToString(); content = wc.DownloadData(documenturl);//documenturl is the file path of the document But, i got the following error 401 unathorized exception System.Net.WebException: The remote server returned an

问题 I'm using Excel = Microsoft.Office.Interop.Excel to write various data to Excel sheets. Excel.Workbook wb = null; Excel.Worksheet ws = null; Excel.Application excelApp = new Excel.Application(); excelApp.Visible = true; try { // Create new workbook wb = (Excel.Workbook)(excelApp.Workbooks.Add(Type.Missing)); ws = wb.ActiveSheet as Excel.Worksheet; // write data ... // Save & Close excelApp.DisplayAlerts = false; // Don't show file dialog for overwrite wb.Close(true, targetFilename, Type

问题 I have a function, into which I'm passing an Microsoft.Office.Interop.Excel.Application instance. The function uses Windows' built in Fax printer, or the Microsoft XPS Document Writer, to save the file as a tiff image. However, when I try to assign to the application's ActivePrinter property, a COMException with the following message is thrown: Exception from HRESULT: 0x800A03EC Here's the code: 'Save the current default printer Dim strDefaultPrinter As String = excelApp.ActivePrinter 'Assign

问题 As the title says, VS2008 keeps crashing on me whenever I debug a project when a certain form is open. I attached another VS2008 instance to it and found the following exception to be the culprit: System.Runtime.InteropServices.COMException occurred Message="Catastrophic failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED))" Source="mscorlib" ErrorCode=-2147418113 StackTrace: at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo) at

问题 I am working on automation of internet explorer 9 through excel VBA, it throws an error when I reach on the last line below: Set ie = CreateObject("InternetExplorer.Application") ie.Visible = True ie.navigate "https://example.com/Main.asp" 'delay till readystate is complete Set doc = ie.document Set doc1 = doc.frames(2).document 'here comes the error can anyone please help? 回答1: i Have face the same issue and it got resolved This will work for IE 10+ Set doc = ie.document.frames Set doc1 =

问题 I am currently trying to implement the Interop.MODI.dll (From Microsoft Office) to use the Image -> Text features it should Provide. But when doing var modi = new MODI.DocumentClass(); I get: "COMException 80040154 with CLSID {40942A6C-1520-4132-BDF8-BDC1F71F547B}". What have I tried to solve that problem? I registered the DLL using the regasm tool: -Problem still exists I tried setting the BuildPlatform to x86: -Problem still exists I use the Visual Studio 2010 Ultimate with Windows 7