import csv file into database

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i am importing exel file into database but giving error The parameterized query '(@OrderID int,@CustomerName varchar(20),@Address varchar(50),@Em' expects the parameter '@OrderID', which was not supplied.

C#

DataTable dt = new DataTable();
        dt.Columns.Add("OrderID");
        dt.Columns.Add("CustomerName");
        dt.Columns.Add("Address");
        dt.Columns.Add("Email");
        dt.Columns.Add("Total");
        string path = System.IO.Path.GetFileName(FileUpload1.PostedFile.FileName);
        FileUpload1.PostedFile.SaveAs(Server.MapPath("~/Imported file/" + path));
        path = Server.MapPath("~/Imported file/" + path);
        TextFieldParser txtp = new TextFieldParser(path);
        txtp.Delimiters = new string[] { "," };
        txtp.TrimWhiteSpace = true;
        
        while (!txtp.EndOfData)
        {
            string[] fields = txtp.ReadFields();
            dt.Rows.Add(fields.Equals("OrderID"));
            dt.Rows.Add(fields.Equals("CustomerName"));
            dt.Rows.Add(fields.Equals("Address"));
            dt.Rows.Add(fields.Equals("Email"));
            dt.Rows.Add(fields.Equals("Total"));

        }

        con = Connectivity.GetConnection();
        string import = "Insert into Customer (OrderID,CustomerName,Address,Email,Total) values(@OrderID,@CustomerName,@Address,@Email,@Total)";
        SqlCommand cmd = new SqlCommand(import, con);
        SqlDataAdapter da = new SqlDataAdapter(cmd);

        //cmd.Parameters.AddWithValue("@OrderID", "OrderID");
        //cmd.Parameters.AddWithValue("@CustomerName","CustomerName");
        //cmd.Parameters.AddWithValue("@Address",  "Address");
        //cmd.Parameters.AddWithValue("@Email",  "Email");
        //cmd.Parameters.AddWithValue("@Total", "Total");

        //SqlCommand cmd = new SqlCommand();
        //cmd.CommandType = CommandType.Text;
        //cmd.CommandText = import;
        //cmd.Connection = con;

        cmd.Parameters.Clear();
        cmd.Parameters.Add("@OrderID", SqlDbType.Int);
        cmd.Parameters.Add("@CustomerName", SqlDbType.VarChar, 20, "CustomerName");
        cmd.Parameters.Add("@Address", SqlDbType.VarChar, 50, "Address");
        cmd.Parameters.Add("@Email", SqlDbType.VarChar, 50, "Email");
        cmd.Parameters.Add("@Total", SqlDbType.Float);
        // SqlDataAdapter da = new SqlDataAdapter();
        cmd.ExecuteNonQuery();
        // da.InsertCommand = cmd;
        int result = da.Update(dt);

Posted 20-Jan-14 22:38pm

Member 9579525

Updated 20-Jan-14 22:42pm

Karthik_Mahalingam

v2

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Christian Graus · Answer 1 · 2014-01-20T22:43:00

I don't need to read your code, I just need to read the error. It means what it says. In fact, all your parameters have not been given values, and so will all fail.

Bulk insert is the way to import an entire csv in one go. Or you could read my articles on passing abitrary sets of data to SQL Server.

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 2 · 2014-01-20T23:03:00

Solution 3

You have only provided the DataType. You need to provide the values as well.

So, refer examples at SqlParameterCollection.Add Method (String, SqlDbType)[^], SqlParameterCollection.Add Method (String, SqlDbType, Int32)[^] and SqlParameterCollection.Add Method (String, SqlDbType, Int32, String)[^].

Posted 20-Jan-14 23:03pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Karthik_Mahalingam · Answer 3 · 2014-01-20T22:51:00

Solution 2

Try this

C#

while (!txtp.EndOfData)
        {
            string[] fields = txtp.ReadFields();
            var newRow = dt.NewRow();
            newRow.ItemArray = fields;
            dt.Rows.Add(newRow);

        }

Posted 20-Jan-14 22:51pm