Delphi程序运行错误
SQL SERVER M
Nov
9
C#中用如下代码输出Grid到Excel，
C# Code Copy Code To Clipboard
- public static Microsoft.Office.Interop.Excel.Application _excelobj = new Microsoft.Office.Interop.Excel.Application();
- public static Workbook _newbook = _excelobj.Workbooks.Add();
- ////...
- Microsoft.Office.Interop.Excel.Worksheet _newsheet = _newbook.ActiveSheet;
在输出后如果关闭了Excel再调用输出，会在上面第7行出现错误 ：
The object invoked has disconnected from its clients. (Exception from HRESULT: 0x80010108 (RPC_E_DISCONNECTED))
究其原因，就是因为excel关闭以后，_newbook这个object不存在了。所以，在第7句前加一个判断即可解决：
C# Code Copy Code To Clipboard
- if (_excelobj.ActiveWorkbook == null)
- {
- _newbook = _excelobj.Workbooks.Add();
- }
- Microsoft.Office.Interop.Excel.Worksheet _newsheet = _newbook.ActiveSheet;
