使用GetOleDbSchemaTable读取Excel列名时出现问题

After some google searching I found out how to read excel column names How To Retrieve Schema Information by Using GetOleDbSchemaTable and Visual Basic .NET . Though the sample is in VB.Net, I am using C#.net. My code is :

经过一些谷歌搜索后,我发现如何阅读excel列名称如何使用GetOleDbSchemaTable和Visual Basic .NET检索架构信息。虽然样本是在VB.Net中,但我使用的是C#.net。我的代码是:

public DataSet ReadXslToDataset(string fileName,string sheetName)
            {
                ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+fileName+";Extended Properties='Excel 8.0;HDR=YES;IMEX=1'";
                using (objConn = new OleDbConnection(ConnectionString))
                {
                        objConn.Open();

                        String[] restrection = { null, null, sheetName, null };
                        dtColumnNames = objConn.GetOleDbSchemaTable  (OleDbSchemaGuid.Columns, restrection);
                        string strColumnName = string.Empty;
                        if (dtColumnNames != null)

                          strColumnName = dtColumnNames.Rows[0]["COLUMN_NAME"].ToString();

                }
}

But I am finding that the column field is blank and henceforth getting the exception

但我发现列字段是空白的,从而得到例外

There is no row at position 0.

位置0没有行。

The excel file looks as

excel文件看起来像

S.No    Issue
1      log4net message pattern not displayed properly in the log file
2      Reading blank rows from Excel while populating into dataset

and I have ensured that I am passing the right file & sheet name.

我确保我传递了正确的文件和工作表名称。

1 个解决方案

#1

There is no row at position 0.

位置0没有行。

Try

if (dtColumnNames != null) {
   if(dtColumnNames.Rows.Count > 0){
      strColumnName = ColumnNames.Rows[0]["COLUMN_NAME"].ToString
    }
  }

Sorry I may have the syntax slightly out - I'm more of a VB.net guy.

对不起,我的语法可能略有不同 - 我更像是一个VB.net人。