获取组合框的值到文本框

Question

using query i have called two columns value from database into one column. the point is now i want to select a value form combobox and put one column value into textbox.

eg

two column values from database into combobox below

10001 haider <------ when i select this index i want only haider to be viewed into the textbox

10002 fahad

10003 aitazaz

the snippet which i have used for calling the two colums value from database is:

public void account()
        {
            con.Open();
            cmd.Connection = con;
            cmd.CommandText = "SELECT acc_no, acc_name FROM accounts_record";
            MySqlDataAdapter adpt = new MySqlDataAdapter(cmd);
            DataSet ds = new DataSet();
            adpt.Fill(ds);

            for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
            {
                cbacc.Items.Add(ds.Tables[0].Rows[i][0] + "   " + ds.Tables[0].Rows[i][1]);
            }

            con.Close();
        }

Answer 1

You should be adding values and text to the combobox separately. Here's an example ComboBox: Adding Text and Value to an Item (no Binding Source) .

If you have to display the id in the text you have to do some parsing before putting the selected text into the textbox.

Answer 2

If you are able to get the 2 value text of the combo box on selection change then you can split it with space (" ") character and take the 2nd string and put it in textbox.

For example

    private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        string[] splitedStr = comboBox1.SelectedText.Split(' ');
        textBox1.Text = splitedStr[1];
    }

Answer 3

Use ComboBox.SelectedIndexChanged event of the combobox to populate the textbox accordingly. use http://msdn.microsoft.com/en-us/library/system.windows.forms.combobox.selectedindexchanged(v=vs.110).aspx

Answer 4

You should use the code as below

   private void Form1_Load(object sender, EventArgs e)
    {
            string conString = "Data Source=\\SQLEXPRESS;Initial Catalog=Test;Integrated                 Security=True";
            SqlConnection con = new SqlConnection(conString);
            SqlCommand cmd = new SqlCommand();
            con.Open();
            cmd.Connection = con;
            cmd.CommandText = "SELECT acc_no +'-' + acc_name as AccNoWithName , acc_no as ActNo FROM accounts_record";
            SqlDataAdapter adpt = new SqlDataAdapter(cmd);
            DataSet dsn = new DataSet();
            adpt.Fill(dsn);
            con.Close();

            comboBox1.DisplayMember = "AccNoWithName";
            comboBox1.ValueMember = "ActNo";
            comboBox1.DataSource = dsn.Tables[0];
   }


private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
            textBox1.Text = comboBox1.SelectedValue.ToString();
 }