Column data from Sql Server not position as match with column in Datatable

Question

The data in InvtID already match with "3" column once I import an Excel file, but the problem is as shown in the photo why the data column (InvtID) filled in datatable after the last row data? How am I able to fix the position to match with "3" column. I already position the InvtID column at 0. Is there any single line code to start position the row at 1?:

public void filldatagridview(ExcelWorksheet workSheet)
{
    DataTable dt = new DataTable();

    //Create the data column
    for (int col = workSheet.Dimension.Start.Column; 
        col <= workSheet.Dimension.End.Column; col++)
    {
        dt.Columns.Add(col.ToString());
    }

    for (int row = 12; row <= 26; row++)
    {
        DataRow newRow = dt.NewRow(); //Create a row
        int i = 0;
        for (int col = workSheet.Dimension.Start.Column; 
            col <= workSheet.Dimension.End.Column; col++)
        {
             newRow[i++] = workSheet.Cells[row, col].Text;
        }
        dt.Rows.Add(newRow);                   
    }

    dt.Columns.RemoveAt(0); //remove No 
    dt.Columns.RemoveAt(0); //remove article

    //Get BookCode 
    var barCodes = dt.AsEnumerable().Select(r => r.Field<string>("3"))
        .ToArray(); //EAN column
    var barCodesstring = string.Format("'{0}'", string.Join("','", barCodes));
    SqlCommand cmd = new SqlCommand("SELECT InvtID FROM InventoryCustomer WHERE 
        Barcode IN (" + barCodesstring + ")", conn);
    conn.Open();
    SqlDataAdapter da = new SqlDataAdapter(cmd);
    da.Fill(dt);

    dt.Columns["InvtID"].SetOrdinal(0);
    dataGridView2.DataSource = dt;

    conn.Close();
}

Answer 1

This code always adds a new row DataRow newRow = dt.NewRow(); , so your rows are not matched:

for (int row = 12; row <= 26; row++)
{
    DataRow newRow = dt.NewRow(); //Create a row
    //...
    dt.Rows.Add(newRow);                   
}

But if I understood correctly, you want to set data into specific data cells. Then you should find existing row and set the cell value:

DataRow dr = dt.Rows[yourRowNumber];
dr[3] = "Your New Value";