datatable綁定comboBox顯示數據[C#]

實現方法：

    1、生成datatable，併爲combox綁定數據源：

           comboBox1.DataSource = dt1;
           comboBox1.DisplayMember = "用戶編碼";
           comboBox1.ValueMember = "ID";
           this.comboBox1.SelectedIndex = -1;

   2、在combox的SelectedIndexChanged事件中添加如下方法：

       private void comboBox1_SelectedIndexChanged(object sender,EventArgs e)
       {
           int iCurrentIndex = this.comboBox1.SelectedIndex;
           if (iCurrentIndex < 0) return;

           DataRow dr = dt1.Rows[iCurrentIndex];
           iID = Int32.Parse(dr["ID"].ToString());

       }

另：如果textBox也想綁定該數據源，實現連動（如輸入編碼顯示對應名稱）

   3、在textBox的TextChanged事件中添加如下方法：

       private void textBox1_TextChanged(object sender, EventArgs e)
       {
           string strUserNo = this.textBox1.Text.Trim();
           for (int i = 0; i < dt1.Rows.Count; i++)
           {
               if (dt1.Rows[i]["用戶編碼"].ToString() == strUserNo)
               {
                   this.comboBox1.SelectedIndex = i;
                   break;
               }
               else
               {
                   this.comboBox1.SelectedIndex = -1;
               }
           }
       }