私有数据表 GetDataFromCSV() {
System.Data.DataTable dtExecChanges = new System.Data.DataTable("exec_changes");
string dirName = Path.GetDirectoryName(sInputFileName);
using (OleDbConnection cn =
new OleDbConnection(@"Provider=Microsoft.Jet.OleDb.4.0;" +
"Data Source=" + dirName + ";" +
"Extended Properties=\"Text;HDR=Yes;FMT=Delimited\""))
{
// Open the connection
cn.Open();
// Set up the adapter
using (OleDbDataAdapter adapter =
new OleDbDataAdapter("SELECT * FROM " + (sInputFileName.Substring(sInputFileName.LastIndexOf("\\") + 1)), cn))
{
adapter.Fill(dtExecChanges);
}
cn.Close();
}
当我填写我的数据表 dtExecChanges 时,它会出错,因为我的 CSV 文件是空的。有没有办法检查选择查询实际上是在获取由数据表填充的任何行 b4 吗?