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unabele to retreieve combobox datamember value

Posted on 2009-05-15
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Last Modified: 2012-05-07
Hi experts

I want to access data from two tables client_mst and client_notes

I have a combobox in which i want to set displaymember as  client_mst.client_name and DispalayValue as client_mst.client_id

depending on the combobox SelectedValue  i want to display the values in the datagrid view as


@"select client_notes.date,client_notes.message from client_notes where client_notes.client_id =" (int)clNamecomboBox.SelectedValue ;


Here i can't retreieve combobox selectedvalue  clNamecomboBox.SelectedValue is not showing any value

and i'm not sure whether to use two dataadapters for two sql statements

pls help me.
Thanks.
using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using MySql.Data;

using MySql.Data.MySqlClient;
 

namespace Easypeasy_Office_Management

{

    public partial class easypeasyForm : Form

    {

        public easypeasyForm()

        {

            InitializeComponent();

            

        }
 
 

        private void btnNotes_Click(object sender, EventArgs e)

        {

            notesPanel.Enabled = true;

            notesPanel.Visible = true;

            string connString = @"server=localhost;database=abc;user id=root;password=kodanda;";

            string sql = @"select  client_name,client_no,notes_message as Notes,notes_date as `Date` from client_mst,client_notes  where client_mst.client_id=client_notes.client_id";

            MySqlConnection conn = null;

           

            try

            {

                conn = new MySqlConnection(connString);

                conn.Open();

               

                MySqlDataAdapter dAdapter = new MySqlDataAdapter(sql, conn);

                MySqlCommandBuilder cBuilder = new MySqlCommandBuilder(dAdapter);

                DataTable dTable = new DataTable();

                dAdapter.Fill(dTable);

                BindingSource bSource = new BindingSource();

                bSource.DataSource = dTable;

               

                MessageBox.Show("demonstrating");

                MessageBox.Show(conn.Database);

                clNamecomboBox.DataSource = bSource;

                clNamecomboBox.DisplayMember = "client_name";

                clNamecomboBox.ValueMember = "client_mst.client_id";

                clNotextBox.Text = (string)clNamecomboBox.SelectedValue;

                dataGridViewNotes.DataSource = bSource;

                dAdapter.Update(dTable);

                

            }

            catch (Exception ex)

            {

                Console.WriteLine("Error" + ex);

            }

            finally

            {

             

                conn.Close();

            }
 

        }
 

       

        

        

        

    }

}

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da.bmp
0
Comment
Question by:APPIREDDY
2 Comments
 
LVL 11

Expert Comment

by:Mihai Stancescu
ID: 24407054
Try to bind directly to the data table not to a binding Source....



Hope this helps!

Regards,
Mishu
0
 

Accepted Solution

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APPIREDDY earned 0 total points
ID: 24481644
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