我有一个 excel 文件和一个 oledb
连接。在 Windows 中打开文件时读取数据时,会抛出以下错误(在 Adapter.Fill
方法处)。
但是,当文件未手动打开时,代码运行正常。
private System.Data.DataSet GetExcelData()
{
// Create new DataSet to hold information from the worksheet.
System.Data.DataSet objDataset1 = new System.Data.DataSet();
DataTable dt = new DataTable();
try
{
string path = ConfigurationManager.AppSettings["ExcelFilePath"];
//string connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties=Excel 12.0;";
string connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties=\"Excel 12.0 Xml;HDR=YES;IMEX=1;\"";
OleDbConnection objConn = new OleDbConnection(connectionString);
objConn.Open();
//String strConString = "SELECT * FROM [Data Version5.2$A2:ZZ] where [Status] = 'aa'";//Status
String strConString = "SELECT * FROM [Data Version5.2$A2:ZZ] where [Status] IS NULL OR [Status]='SubReport'";//Status SubReport
OleDbCommand objCmdSelect = new OleDbCommand(strConString, objConn);
OleDbDataAdapter objAdapter1 = new OleDbDataAdapter();
// Pass the Select command to the adapter.
objAdapter1.SelectCommand = objCmdSelect;
// Fill the DataSet with the information from the work sheet.
objAdapter1.Fill(objDataset1, "ExcelData");
objConn.Close();
}
catch (Exception ex)
{
throw ex;
}
return objDataset1;
}
错误信息是
最佳答案
假设您不需要写入文件,请尝试调整您的连接字符串以包含只读模式 (Mode=Read
)。我的所有文件中都有它(我不需要写入文件)而且我从已经打开的工作簿中读取从来没有遇到过问题:
string connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" +
path + ";Mode=Read;Extended Properties=\"Excel 12.0 Xml;HDR=YES;IMEX=1;\"";
我也不倾向于将 Excel 文件读取为 XML,因此我的连接字符串的扩展属性是 Excel 12.0;HDR=YES;IMEX=1;
关于c# - 读取打开的 excel 文件时出现 OleDBException,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/20568485/