c# ile combobox doldurma

public class ComboboxEleman 
 { 
     public string Text { get; set; } 
     public object Value { get; set; } 
  
     public override string ToString() 
     { 
         return Text; 
     } 
 }

private void Form1_Load(object sender, EventArgs e) 
 { 
     ComboboxEleman yeniEleman = new ComboboxEleman(); 
     yeniEleman.Text = "İstanbul"; 
     yeniEleman.Value = 34; 
  
     comboBox1.Items.Add(yeniEleman); 
  
     comboBox1.SelectedIndex = 0; 
  
     ComboboxEleman seciliEleman = comboBox1.SelectedItem as ComboboxEleman; 
  
     MessageBox.Show(seciliEleman.Text + " " + seciliEleman.Value); 
 }