In your case, it is worth looking towards Control.DataBindings and BindingSource.
It might look something like this:
using System; using System.Windows.Forms; namespace WindowsFormsApplication2 { public partial class Form1 : Form { public Form1() { InitializeComponent(); this.comboBox1.DataBindings.Add( "Width", this.bindingSource1, "WidthProperty"); this.comboBox1.DataBindings.Add( "Height", this.bindingSource1, "HeightProperty"); this.comboBox2.DataBindings.Add( "Width", this.bindingSource1, "WidthProperty"); this.comboBox2.DataBindings.Add( "Height", this.bindingSource1, "HeightProperty"); this.bindingSource1.DataSource = new Test1[] { new Test1{ HeightProperty = 20, WidthProperty = 200 }};} private void Form1_Load(object sender, EventArgs e) { } } class Test1 { public Int32 Width { get; set; } public Int32 Height { get; set; } } }