asp.net 导出EXCEL 报错未包含 get_Range 的定义

using Excel; Application app = new Application(); if (app == null) { return; } app.Visible = false; app.UserControl = true; Workbooks workbooks = app.Workbooks; _Workbook workbook = workbooks.Add(XlWBATemplate.xlWBATWorksheet Sheets sheets = workbook.Worksheets; _Worksheet worksheet = (_Worksheet)sheets.get_Item(1); if (worksheet == null) { return; } worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1,3]).Merge(Missing.Value); //横向并 worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, 1]).Value2 = "导出EXCEL测试一";

 

上面程序运行报错信息
“object”未包含“get_Range”的定义 
说明: 执行当前 Web 请求期间，出现未经处理的异常。请检查堆栈跟踪信息，以了解有关该错误以及代码中导致错误的出处的详细信息。 

异常详细信息: Microsoft.CSharp.RuntimeBinder.RuntimeBinderException: “object”未包含“get_Range”的定义

源错误: 


行 32: r1 = worksheet.Cells[1, 3];
行 33: r.Merge(r1);
行 34: ((Excel.Range)worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, 3])).Merge(Missing.Value); //横向合并
行 35: r = worksheet.Cells[1, 1];
行 36: r.Value2 = "导出EXCEL测试一";
 
上面添加的是 Microsoft Excel 11.0 Object Library 引用 项目里BIN目录下都有

 

 

 

在VS2010中调用COM Interop DLL操作Excel通过get_Range去获取Range时，会发生Object does not contain a definition for get_Range的错误。其原因和解决方案：

Misha's explanation is correct - when using No PIA, methods returning object are treated as if they return dynamic in order to simulate the VBA semantics of COM Variants. Because the return value of sh.Cells is Object, sh.get_Range is dispatched dynamically, and the dynamic COM binder does not support the get_Range syntax exposed in C# before indexed properties were supported. We've tried to maintain backwards compatibility wherever possible when you turn on Embed Interop Types for a COM reference, but this is one place where some further tweaking is required.


The workaround you proposed will work - a cleaner workaround is the one Mike Rosenblum pointed out to use C# 4.0's new indexed properties syntax, which the dynamic COM binder does understand. You can then represent the operation with the following code:

Excel.Range r = sh.Range[sh.Cells[1, 1], sh.Cells[2, 2]];

See Also
get_Range method missing with embedded interop assembly

 

原帖

http://topic.csdn.net/u/20101116/17/889e344d-8ac0-4f6e-959e-c7364d0b097c.html

 

 

 

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