我正在使用 C# (.NET 4.0) 为 Excel 2007 开发应用程序级插件。之前有人问过类似的问题>>

https://stackoverflow.com/questions/11374023/resizing-namedrange-throws-a-controlnotfoundexception

C# excel addin - Accessing Controls

但是对他们的回应(有的话)对我不起作用。所以我想详细描述我正在尝试做什么,以及当我尝试这样做时会发生什么。

简而言之,我的问题是我无法获得 NamedRange 控件对象来修改它们,在它们在代码中的其他地方被实例化和初始化之后。

请继续阅读以获得更完整的描述。

当 AddIn 启动时,它会创建一个 NamedRange 控件并将其附加到特定工作表上的某些单元格 >>

Worksheet worksheet = Globals.Factory.GetVstoObject(
                Globals.ThisAddIn.Application.ActiveWorkbook.ActiveSheet);
Excel.Range cell = worksheet.Range["A1"];
_configParams.HeaderNamedRange = worksheet.Controls.AddNamedRange(cell, "HeaderCells");
_configParams.HeaderNamedRange.RefersTo = "=" + worksheet.Name + "!$A$1:$A$5";

AddIn 启动后,我希望允许用户重新指定此 NamedRange 控件可以指向的单元格。为此,我让用户选择一系列单元格,然后在合适的事件处理程序方法中获取所选单元格的位置(作为字符串)。

然后我打算以编程方式重新指定上述 NamedRange 控件指向的单元格。我尝试了以下方法,但它们都不起作用。

[方法一]
Worksheet controlWorksheet = Globals.Factory.GetVstoObject(Globals.ThisAddIn.Application.ActiveWorkbook.ActiveSheet);
((NamedRange)(controlWorksheet.Controls["HeaderCells"])).RefersTo = newHeaderCellsLocation;

在运行上面的代码时,它抛出一个 ControlNotFoundException,我收到以下消息:
Microsoft.VisualStudio.Tools.Applications.Runtime.ControlNotFoundException was unhandled by user code
  Message=This document might not function as expected because the following control is missing: PortfolioHeaderCells. Data that relies on this control will not be automatically displayed or updated, and other custom functionality will not be available. Contact your administrator or the author of this document for further assistance.
  Source=Microsoft.Office.Tools.Excel.Implementation
  StackTrace:
       at Microsoft.Office.Tools.Excel.NamedRangeImpl.GetObjects()
       at Microsoft.Office.Tools.Excel.NamedRangeImpl.EnsureProxy()
       at Microsoft.Office.Tools.Excel.NamedRangeImpl.get_Proxy()
       at Microsoft.Office.Tools.Excel.NamedRangeImpl.AttachSupport()
       at Microsoft.Office.Tools.Excel.NamedRangeImpl.ResetControl()
       at Microsoft.Office.Tools.Excel.NamedRangeImpl.set_RefersTo(String value)
       at ExcelListenerAddIn.Configuration.ListenerConfigManager.ActivateListenerConfiguration(ListenerConfigParams newConfiguration, Boolean cameFromConfigFile) in C:\Users\jag201\Documents\Visual Studio 2010\Projects\PoC\ExcelListenerAddIn\Configuration\ListenerConfigManager.cs:line 97
       at ExcelListenerAddIn.TaskPanes.ListenerConfigurator._activateNewConfigButton_Click(Object sender, EventArgs e) in C:\Users\jag201\Documents\Visual Studio 2010\Projects\PoC\ExcelListenerAddIn\TaskPanes\ListenerConfigurator.cs:line 131
       at System.EventHandler.Invoke(Object sender, EventArgs e)
       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.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
  InnerException: System.Runtime.InteropServices.COMException
       Message=Exception from HRESULT: 0x800A03EC
       Source=Microsoft.VisualStudio.Tools.Office.Runtime
       ErrorCode=-2146827284
       StackTrace:
            at Microsoft.VisualStudio.Tools.Office.Runtime.Interop.IHostItemProvider.GetHostObject(String primaryType, String primaryCookie, IntPtr& hostObject)
            at Microsoft.VisualStudio.Tools.Office.Runtime.DomainCreator.ExecuteCustomization.Microsoft.Office.Tools.IHostItemProvider.GetHostObject(Type primaryType, String primaryCookie)
            at Microsoft.Office.Tools.Excel.NamedRangeImpl.GetObjects()
       InnerException:

【方法二】

然后我看到了 Set Excel Named Ranges via C#? 并尝试使用那里的答案中描述的方法:
Worksheet controlWorksheet = Globals.Factory.GetVstoObject(Globals.ThisAddIn.Application.ActiveWorkbook.ActiveSheet);
controlWorksheet.Names.Item("HeaderCells", Type.Missing, Type.Missing).RefersTo = newHeaderCellsLocation;

在运行上面的代码时,我收到以下异常和消息:
System.Runtime.InteropServices.COMException was unhandled by user code
  Message=Exception from HRESULT: 0x800A03EC
  Source=""
  ErrorCode=-2146827284
  StackTrace:
       at System.RuntimeType.ForwardCallToInvokeMember(String memberName, BindingFlags flags, Object target, Int32[] aWrapperTypes, MessageData& msgData)
       at Microsoft.Office.Interop.Excel.Names.Item(Object Index, Object IndexLocal, Object RefersTo)
       at ExcelListenerAddIn.Configuration.ListenerConfigManager.ActivateListenerConfiguration(ListenerConfigParams newConfiguration, Boolean cameFromConfigFile) in C:\Users\jag201\Documents\Visual Studio 2010\Projects\PoC\ExcelListenerAddIn\Configuration\ListenerConfigManager.cs:line 97
       at ExcelListenerAddIn.TaskPanes.ListenerConfigurator._activateNewConfigButton_Click(Object sender, EventArgs e) in C:\Users\jag201\Documents\Visual Studio 2010\Projects\PoC\ExcelListenerAddIn\TaskPanes\ListenerConfigurator.cs:line 131
       at System.EventHandler.Invoke(Object sender, EventArgs e)
       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.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
  InnerException:

因此,在这两种方法中,来自 HRESULT 的异常是相同的:0x800A03EC。此外,在我尝试获取 NamedRange 控件并重新指定它指向的单元格的行中抛出异常。

我已经逐步完成了我的代码,当我尝试修改 NamedRange 对象时,确实存在 NamedRange 控件。

然后我使用以下代码检查了 controlWorksheet.Controls["HeaderCells"] 对象的类型 >>
Worksheet controlWorksheet = Globals.Factory.GetVstoObject(Globals.ThisAddIn.Application.ActiveWorkbook.ActiveSheet);
System.Windows.Forms.MessageBox.Show((controlWorksheet.Controls["HeaderCells"]).ToString());

这会生成一个包含“Microsoft.Office.Tools.Excel.NamedRangeImpl”的 MessageBox。如果我没记错的话,Excel 对象模型没有公开这个类型,所以我想知道问题是否是由我将 NamedRangeImpl 对象转换为 NamedRange 控件对象引起的。

非常感谢您的帮助。如果有任何我可以提供的进一步信息,请告诉我。提前致谢!

最佳答案

返回的对象类型没有问题。类型“Microsoft.Office.Tools.Excel.NamedRangeImp”旨在通过“Microsoft.Office.Tools.Excel.NamedRange”接口(interface)访问。

0x800A03EC 的 COM 异常向我建议 excel 将不允许您执行请求的操作(这也是您尝试例如将字符串值发送到将超过字符限制的单元格时会得到的错误代码) .

多次设置 RefersTo 属性没有问题,正如我通过运行以下代码验证的那样:

        Microsoft.Office.Tools.Excel.Worksheet worksheet = Globals.Factory.GetVstoObject(
            Globals.MercuryAddIn.Application.ActiveWorkbook.ActiveSheet);
        Excel.Range cell = worksheet.Range["A1"];
        Microsoft.Office.Tools.Excel.NamedRange r = worksheet.Controls.AddNamedRange(cell, "HeaderCells");
        r.RefersTo = "=" + worksheet.Name + "!$A$1:$A$5";

        r.RefersTo = "=" + worksheet.Name + "!$C$1:$C$5";

因此,问题必须出在“newHeaderCellsLocation”变量中包含的字符串中。 RefersTo 必须设置为范围的有效公式。你能仔细检查一下字符串的格式是否正确吗?

关于c# - 在 C# 中获取 NamedRange 控件的句柄,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/12270735/

10-11 09:10