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我有以下代码用于构建固定长度的文本文件。

                TestFile.WriteLine(string.Format(
                    //Formats with negative numbers are left justified. e.g. {1,-10}
                    "{0,50}" + //SPACER 50
                    "{1,-10}" + //NCSBN ID
                    "{2,10}" + //SPACER 10
                    "{3,-50}" + //LAST NAME
                    "{4,-30}" + //FIRST NAME
                    "{5,-30}" + //MIDDLE NAME
                    "{6,90}" + //SPACER 90
                    "{7,-8}" + //DOB
                    "{8,-1}" + //GENDER
                    "{9,-9}" + //SOCIAL SECURITY NUMBER
                    "{10,41}" + //SPACER 41
                    "{11,-60}" + //ADDRESS 1
                    "{12,-60}", //ADDRESS 2

                    DbReader.GetString(0),DbReader.GetString(1),DbReader.GetString(2),
                    DbReader.GetString(3), DbReader.GetString(4),DbReader.GetString(5),
                    DbReader.GetString(6), DbReader.GetString(7), DbReader.GetString(8),
                    DbReader.GetString(9), DbReader.GetString(10), DbReader.GetString(11),
                    DbReader.GetString(12)));

一切都很好，直到我添加第 12 个索引然后我收到以下错误：

System.IndexOutOfRangeException was unhandled
  Message="Index was outside the bounds of the array."
  Source="System.Data"
  StackTrace:
       at System.Data.Odbc.DbCache.AccessIndex(Int32 i)
       at System.Data.Odbc.OdbcDataReader.internalGetString(Int32 i)
       at System.Data.Odbc.OdbcDataReader.GetString(Int32 i)
       at BuildFile_EXE.Program.Main(String[] args) in G:\IT Development\SSIS\Reports\NursysAPRN_ToNatCouncil\BuildFile_EXE\BuildFile_EXE\Program.cs:line 69
       at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()

string.format 是否有 11 个索引限制，还是我遗漏了一些明显的东西？

谢谢。

4

1 回答 1

1

请阅读您的例外情况。它指出您的SqlDataReader班级访问的数据库中的表只有 11 列

于 2013-06-11T18:07:27.540 回答