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POc# How to show name and insert values (name's ID ) from combobox in c#
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2013-01-09T23:24:43.740
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Thank you guys in advance. I'am new user in c# Windows Forms. I have a table with id's and name <pre> ID | Name --------------- 1 | Lion 2 | Tiger 3 | Crocodile </pre> If I want to display from a table to combobox I did like this. <pre><code>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 System.Data.SqlClient; namespace Insert_update_delete_nr2 { public partial class Form1 : Form { SqlConnection con = new SqlConnection(@"CONNECTION_STRING"); SqlCommand cmd = new SqlCommand(); SqlDataReader dr; public Form1() { InitializeComponent(); } private void button1_Click_1(object sender, EventArgs e) { con.Open(); string query = "select * from info"; SqlCommand cmd = new SqlCommand(query, con); cmd.CommandType = CommandType.Text; dr = cmd.ExecuteReader(); while (dr.Read())//while true { comboBox1.Items.Add(dr[0].ToString());//loading values into combo } cmd.CommandText = "insert into info3 (name, name_id) values ('"+textBox1.Text+"', '" + comboBox1.Items.Add(dr[0].ToString()) + "')"; cmd.ExecuteNonQuery(); cmd.Clone(); con.Close(); } private void loadlist() { listBox1.Items.Clear(); listBox2.Items.Clear(); listBox3.Items.Clear(); con.Open(); cmd.CommandText = "select * from info3"; dr = cmd.ExecuteReader(); if (dr.HasRows) { while (dr.Read()) { listBox1.Items.Add(dr[0].ToString()); listBox2.Items.Add(dr[1]).ToString(); listBox3.Items.Add(dr[3].ToString()); } } con.Close(); } private void Form1_Load(object sender, EventArgs e) { // con.Open(); FillDropDownList(string SQL, ComboBox comboBox1);// This giving me error. // How should I call this FillDropDownlist function? The parameters which are they? cmd.Connection = con; listBox3.Visible = false; loadlist(); } } } </code></pre> And it's trying inserting what is showing in combobox which it's name, not id's. in PHP it would be like the following: <pre><code>$sql = " SELECT * FROM info "; $res = mysql_query($sql); while ($row = mysql_fetch_array($res)) { print '<option value="'.$row['id'].'">'.$row['name'].'</option>'; } </code></pre> That would insert id's and showing names. But How should I do in c#? Thank you again for your time!
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<c#><winforms><combobox>
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c# How to show name and insert values (name's ID ) from combobox in c#
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