OleDB选择多个CSV作为第一行作为字段名称在C＃ [英] OleDB selecting multiple CSVs with first row as field names in C#

问题描述

所以我的代码看起来像这样，这是所有罚款和良好

So my code looks like this currently, which is all fine and good

String q = "SELECT * FROM "+"test.csv";
        try
        {
            OleDbConnection cn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:\\;Extended Properties=\"Text;HDR=No;FMT=Delimited\"");
            OleDbDataAdapter da = new OleDbDataAdapter();
            DataSet ds = new DataSet();
            OleDbCommand cd = new OleDbCommand(q, cn);
            cn.Open();
            da.SelectCommand = cd;
            ds.Clear();
            da.Fill(ds, "CSV");
            dataGridView1.DataSource = ds.Tables[0];
            cn.Close();
            }
        catch (Exception ex)
        {
            MessageBox.Show("There was an issue: " + ex.Message);
        }

但是，我想获取CSV中的第一行，作为字段名，所以我可以做类似

However, I would like to take the first row in my CSV and use that as the field names, so I can do something like

"select a.ID, a.SOMETHING_ELSE from test.csv a"
where the CSV looks something like
ID,SOMETHING_ELSE,DONT_WANT_THIS
1,blah,I don't want to see this

然而，从我看到的，关于网络上的所有示例没有什么比select *，我想我的datagrid显示标题作为字段名称选择，

Yet, from what I see, about all examples on the web show nothing other than select *, and I would like my datagrid to show the headers as the field names selected, instead of F1, F2....

推荐答案

更改连接字符串以包括HDR = Yes（而不是HDR = No）：

Change your connection string to include HDR=Yes (instead of HDR=No):

OleDbConnection cn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:\\;Extended Properties=\"Text;HDR=Yes;FMT=Delimited\"");

对于OleDB，连接字符串中的HDR属性指示第一行是否包含列名。

For OleDB, the HDR property in the connection string indicates whether or not the first row contains the column names.

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