Question

在我的下面的代码中给我这个错误

错误是我的gridview文本框列值未插入我的数据库参数缺少错误

try {
    da=DateTime.Now;

    foreach(DataGridViewRow row in dataGridView1.Rows) {
        string SelectedText=Convert.ToString((row.Cells["article_name"] as DataGridViewComboBoxCell).FormattedValue.ToString());
        string SelectedText1=Convert.ToString((row.Cells["size_name"] as DataGridViewComboBoxCell).FormattedValue.ToString());
        string SelectedText2=Convert.ToString((row.Cells["color_name"] as DataGridViewComboBoxCell).FormattedValue.ToString());
        string SelectedText3=Convert.ToString((row.Cells["unit_name"] as DataGridViewComboBoxCell).FormattedValue.ToString());

        SqlCommand comm=new SqlCommand("abc", con);
        con.Open();
        comm.Parameters.Add("@order_no", SqlDbType.NVarChar).Value="abc123";
        comm.Parameters.Add("@article_name", SqlDbType.NVarChar).Value=SelectedText;

        //dataGridView1.Rows[i].Cells["article_name"].Value;
        comm.Parameters.Add("@size_name", SqlDbType.NVarChar).Value=SelectedText1;
        comm.Parameters.Add("@color_name", SqlDbType.NVarChar).Value=SelectedText2;
        comm.Parameters.Add("@quantity", SqlDbType.Int).Value=row.Cells["quantity"].Value;
        comm.Parameters.Add("@piece_carton", SqlDbType.Int).Value=row.Cells["pcs_carton"].Value;
        comm.Parameters.Add("@no_of_carton", SqlDbType.Int).Value=row.Cells["no_carton"].Value;
        comm.Parameters.Add("@unit_name", SqlDbType.NVarChar).Value=SelectedText3;
        comm.Parameters.Add("@rate", SqlDbType.NVarChar).Value=row.Cells["rate"].Value;
        comm.Parameters.Add("@ship_qty", SqlDbType.Int).Value=row.Cells["ship_qty"].Value;
        comm.Parameters.Add("@date1", SqlDbType.DateTime).Value=da;
        comm.Parameters.Add("@amount", SqlDbType.NVarChar).Value=row.Cells["amount"].Value;

        //comm.CommandText = StrQuery;
        db.insertprocedure(comm);
    }
}
catch(SqlException ex) {
    MessageBox.Show(ex.Message);
}
finally {
    con.Close();
}

这是我的查询

create proc abc
@order_no varchar(50),
@article_name varchar(500),
@size_name varchar(100),
@color_name varchar(100),
@quantity int,
@piece_carton int,
@no_of_carton int,
@unit_name varchar(50),
@rate varchar(50),
@ship_qty int,
@date1 date,
@amount varchar(50)
as
begin
set @date1=CONVERT(varchar,@date1,1)
insert into transaction_order(order_id,article_id,size_id,color_id,quantity,piece_carton,no_of_carton,unit_id,rate,ship_qty,date1,amount)
values(@order_no,(select article_id from article_order where article_name=@article_name),(select size_id from size where size_name=@size_name),(select color_id from color where color_name=@color_name),@quantity,@piece_carton,@no_of_carton,(select unit_id from unit where unit_name=@unit_name),@rate,@ship_qty,@date1,@amount)
end

这是MY函数insertprocedure此函数在数据库类
中

     public void insertprocedure(SqlCommand txt)
        {
            DateTime da = new DateTime();

            try
            {
                da = DateTime.Now;
                con.Open();
                txt.CommandType = CommandType.StoredProcedure;
                txt.ExecuteNonQuery();

                con.Close();
            }
            catch (Exception ex) { throw ex; }
            finally { con.Close(); }
        }

> Here Is My Gridview TextBox Columns Added Code
 private void Form1_Load(object sender, EventArgs e)
        {
            string query = "SELECT article_name FROM article_order";
            DataTable dt = db.select_command(query);
            BindingSource bi = new BindingSource();
            bi.DataSource = dt;


            string query1 = "SELECT size_name FROM size";
            DataTable dt1 = db.select_command(query1);
            BindingSource bi1 = new BindingSource();
            bi1.DataSource = dt1;

            string query2 = "SELECT color_name FROM color";
            DataTable dt2 = db.select_command(query2);
            BindingSource bi2 = new BindingSource();
            bi2.DataSource = dt2;


            string query3 = "SELECT unit_name FROM unit";
            DataTable dt3 = db.select_command(query3);
            BindingSource bi3 = new BindingSource();
            bi3.DataSource = dt3;


            //string query4 = "SELECT order_no FROM master_order";
            //DataTable dt4 = db.select_command(query4);
            //BindingSource bi4 = new BindingSource();
            //bi4.DataSource = dt4;








            #region Gridview Columns
            //Transaction Id
            DataGridViewTextBoxColumn trans_id = new DataGridViewTextBoxColumn();
            trans_id.HeaderText = "ID";
            trans_id.Width = 50;
            trans_id.DataPropertyName = "ID";
            trans_id.Name = "trans_id";
            dataGridView1.Columns.Add(trans_id);

            //Order No.

            //DataGridViewTextBoxColumn order_no = new DataGridViewTextBoxColumn();
            //order_no.HeaderText = "Order No";
            //order_no.Width = 100;
            ////order_no.DataPropertyName = "yarn_name";
            //order_no.Name = "order_no";
            //dataGridView1.Columns.Add(order_no);

            //query = "select yarn_name from yarn";
            //auto.autocomplete1(dataGridView1., textBox9.AutoCompleteCustomSource = namesCollection, query);
            //DataGridViewTextBoxColumn order_no = new DataGridViewTextBoxColumn();
            //order_no.HeaderText = "Order No.";
            //order_no.Width = 50;
            //order_no.DataPropertyName = "order_no";
            //order_no.Name = "order_no";
            //dataGridView1.Columns.Add(order_no);





            //Article Name
            DataGridViewComboBoxColumn article_name = new DataGridViewComboBoxColumn();
            article_name.DataPropertyName = "Article Name";
            article_name.HeaderText = "Article Name";
            article_name.Name = "article_name";
            article_name.Width = 120;

            article_name.DataSource = bi;
            article_name.ValueMember = "article_name";
            //article_name.DisplayMember = "article_name";

            dataGridView1.Columns.Add(article_name);
            //Size Name
            DataGridViewComboBoxColumn size_name = new DataGridViewComboBoxColumn();
            size_name.DataPropertyName = "Size Name";
            size_name.HeaderText = "Size Name";
            size_name.Name = "size_name";
            size_name.Width = 120;

            size_name.DataSource = bi1;
            size_name.ValueMember = "size_name";
            ////size_name1.DisplayMember = "size_name";

            dataGridView1.Columns.Add(size_name);

            //Color Name
            DataGridViewComboBoxColumn color_name = new DataGridViewComboBoxColumn();
            color_name.DataPropertyName = "Color Name";
            color_name.HeaderText = "Color Name";
            color_name.Name = "color_name";
            color_name.Width = 120;

            color_name.DataSource = bi2;
            color_name.ValueMember = "color_name";
            //ColumnItem.DisplayMember = "ItemText";

            dataGridView1.Columns.Add(color_name);

            //quantity
            DataGridViewTextBoxColumn quantity = new DataGridViewTextBoxColumn();
            quantity.HeaderText = "Quantity";
            quantity.Width = 100;
            quantity.DataPropertyName = "Quantity";
            quantity.Name = "quantity";
            dataGridView1.Columns.Add(quantity);

            //Pcs/Carton
            DataGridViewTextBoxColumn pcs_carton = new DataGridViewTextBoxColumn();
            pcs_carton.HeaderText = "Piece/Carton";
            pcs_carton.Width = 100;
            pcs_carton.DataPropertyName = "Piece/Carton";
            pcs_carton.Name = "pcs_carton";
            dataGridView1.Columns.Add(pcs_carton);

            //No Of Carton
            DataGridViewTextBoxColumn no_carton = new DataGridViewTextBoxColumn();
            no_carton.HeaderText = "No Of Carton";
            no_carton.Width = 70;
            no_carton.DataPropertyName = "No Of Carton";
            no_carton.Name = "no_carton";
            dataGridView1.Columns.Add(no_carton);

            //unit name
            DataGridViewComboBoxColumn unit_name = new DataGridViewComboBoxColumn();
            unit_name.DataPropertyName = "Unit Name";
            unit_name.HeaderText = "Unit Name";
            unit_name.Name = "unit_name";
            unit_name.Width = 120;

            unit_name.DataSource = bi3;
            unit_name.ValueMember = "unit_name";
            //ColumnItem.DisplayMember = "ItemText";

            dataGridView1.Columns.Add(unit_name);
            //rate
            DataGridViewTextBoxColumn rate = new DataGridViewTextBoxColumn();
            rate.HeaderText = "Rate";
            rate.Width = 70;
            rate.DataPropertyName = "Rate";
            rate.Name = "rate";
            dataGridView1.Columns.Add(rate);

            //amount
            DataGridViewTextBoxColumn amount = new DataGridViewTextBoxColumn();
            amount.HeaderText = "Amount";
            amount.Width = 70;
            amount.DataPropertyName = "Amount";
            amount.Name = "amount";
            dataGridView1.Columns.Add(amount);

            //Ship quantity
            DataGridViewTextBoxColumn ship_qty = new DataGridViewTextBoxColumn();
            ship_qty.HeaderText = "Ship Quantity";
            ship_qty.Width = 70;
            ship_qty.DataPropertyName = "Ship Quantity";
            ship_qty.Name = "ship_qty";
            dataGridView1.Columns.Add(ship_qty);
            #endregion
        }

Answer 1

值（@order_no，
  （从article_order选择article_id，其中article_name = @ article_name），
  （从尺寸中选择size_id，其中size_name = @ size_name），
  （从颜色中选择color_id，其中color_name = @ color_name），   @量，@ piece_carton，@ no_of_carton，
  （从unit_name = @ unit_name中选择unit_id），
  @ rate，@ ship_qty，@ date1，@ amount）

如果过程中任何标记的子选择返回多个值，则会显示错误消息。

Answer 2

我们可以看到您的选择查询吗？似乎有一个子查询返回超过1的值

Answer 3

运行此查询：

select article_name,COUNT(*) from article_order GROUP BY article_name HAVING COUNT(*)>1

如果它返回任何行，那么您的问题是您的表中有多篇文章具有相同的名称。

或者，确保在article_name，color_name，unit_name和size_name各有一个UNIQUE INDEX。如果在尝试创建该索引时遇到错误（因为肯定会给你一个错误），那么你需要在相应的表中修复它，然后创建索引。

多个gridview Rows一次在数据库中插入

3 个答案: