【发布时间】:2017-05-30 04:46:38
【问题描述】:
我正在尝试通过 WPF 项目控制 Excel 应用程序。
var xla = new Microsoft.Office.Interop.Excel.Application();
xla.Width = 400; // This line is throwing the below exception.
它可以正常工作几次,几天后同一行给出如下所示的异常。注销并登录到系统暂时修复问题。
System.Runtime.InteropServices.COMException was unhandled
HResult=-2146827284
Message=Exception from HRESULT: 0x800A03EC
Source=Microsoft.Office.Interop.Excel
ErrorCode=-2146827284
StackTrace:
at Microsoft.Office.Interop.Excel.ApplicationClass.set_Width(Double RHS)
at EmbedExcel1.Form1.button1_Click(Object sender, EventArgs e) in d:\Test Projects\EmbedExcel1\EmbedExcel1\Form1.cs:line 27
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at EmbedExcel1.Program.Main() in d:\Test Projects\EmbedExcel1\EmbedExcel1\Program.cs:line 19
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
我该如何解决这个问题?
【问题讨论】:
-
您说您使用的是 WPF,但堆栈跟踪显示了一个 Windows 窗体应用程序。什么是正确的?
标签: c# excel excel-interop comexception