Solved

unabele to retreieve combobox datamember value

Posted on 2009-05-15
2
383 Views
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();
            }
 
        }
 
       
        
        
        
    }
}

Open in new window

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

by:
APPIREDDY earned 0 total points
ID: 24481644
I FOUND THE ANSWER
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Introduction Although it is an old technology, serial ports are still being used by many hardware manufacturers. If you develop applications in C#, Microsoft .NET framework has SerialPort class to communicate with the serial ports.  I needed to…
Entity Framework is a powerful tool to help you interact with the DataBase but still doesn't help much when we have a Stored Procedure that returns more than one resultset. The solution takes some of out-of-the-box thinking; read on!
This tutorial gives a high-level tour of the interface of Marketo (a marketing automation tool to help businesses track and engage prospective customers and drive them to purchase). You will see the main areas including Marketing Activities, Design …
Along with being a a promotional video for my three-day Annielytics Dashboard Seminor, this Micro Tutorial is an intro to Google Analytics API data.

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question