将不均匀数据从Datagridview插入数据库C＃的问题

Question

Hi i have this codes that insert data from datagridview to database

for (int i = 0; i < ADODB.Rows.Count - 1; i++)
        {
            SqlCommand cmd = new SqlCommand("INSERT INTO Employee VALUES(@Team, @SIC, @EID,@EmployeeName,@Username,@Password,@Designation,@Department,@Email,@HireDate,@TakenAL,@Status)", con);

            cmd.Parameters.AddWithValue("@Team", ADODB.Rows[i].Cells[0].Value);
            cmd.Parameters.AddWithValue("@SIC", ADODB.Rows[i].Cells[1].Value);
            cmd.Parameters.AddWithValue("@EID", ADODB.Rows[i].Cells[2].Value);
            cmd.Parameters.AddWithValue("@EmployeeName", ADODB.Rows[i].Cells[3].Value);
            cmd.Parameters.AddWithValue("@Username", ADODB.Rows[i].Cells[4].Value);
            cmd.Parameters.AddWithValue("@Password", ADODB.Rows[i].Cells[5].Value);
            cmd.Parameters.AddWithValue("@Designation", ADODB.Rows[i].Cells[6].Value);
            cmd.Parameters.AddWithValue("@Department", ADODB.Rows[i].Cells[7].Value);
            cmd.Parameters.AddWithValue("@Email", ADODB.Rows[i].Cells[8].Value);
            cmd.Parameters.AddWithValue("@HireDate", ADODB.Rows[i].Cells[9].Value);
            cmd.Parameters.AddWithValue("@TakenAL", ADODB.Rows[i].Cells[10].Value);
            cmd.Parameters.AddWithValue("@Status", ADODB.Rows[i].Cells[11].Value);
            con.Open();
            cmd.ExecuteNonQuery();
            con.Close();
        }

I would like to ask what if i have 12 columns in my datagridview but my database has 13 columns. It would prompt an error due to the the difference in things that are added. How do i solve this problem? Thanks in advance

Answer 1

Use name reference for the columns, ie

        cmd.Parameters.AddWithValue("@Team", ADODB.Rows[i].Cells["Team"].Value);
        cmd.Parameters.AddWithValue("@SIC", ADODB.Rows[i].Cells["SIC"].Value);
        cmd.Parameters.AddWithValue("@EID", ADODB.Rows[i].Cells["EID"].Value);

The columns will receive their name from the database column, when you load data from database. Other way is to set and name the columns via GUI in VS, or via code, ie:

DataGridView1.Column[2].Name = "EID"

If you design your column scheme of datagridview in GUI or code first, make sure you use

DataGridView1.AutoGenerateColumns = False

and that your use that name reference when loading data, using DataPropertyName:

DataGridView1.Column[2].DataPropertyName = "EID"