BindableComponent Class

public abstract class BindableComponent : Component, IBindableComponent, IComponent, IDisposable

private Microsoft.Office.Tools.Excel.NamedRange namedRange1;
private Microsoft.Office.Tools.Excel.Controls.Button button1;
private string[] customerNames = 
    { "Reggie", "Sally", "Henry", "Christine" };
private DataSet ds;

private void SetBindingContext()
{
    namedRange1 = this.Controls.AddNamedRange(
        this.Range["A1", missing], "namedRange1");

    // Create a button that scrolls through the data 
    // displayed in the NamedRange.
    button1 = this.Controls.AddButton(50, 20, 100, 20,
        "button1");
    button1.Text = "Display next item";
    button1.Click += new EventHandler(button1_Click);

    // Create a data table with one column.
    ds = new DataSet();
    DataTable table = ds.Tables.Add("Customers");
    DataColumn column1 = new DataColumn("Names", typeof(string));
    table.Columns.Add(column1);

    // Add the names to the table.
    DataRow row;
    for (int i = 0; i < customerNames.Length; i++)
    {
        row = table.NewRow();
        row["Names"] = customerNames[i];
        table.Rows.Add(row);
    }

    // Create a new Binding that links the Value2 property
    // of the NamedRange and the Names column.
    Binding binding1 = new Binding("Value2", ds,
        "Customers.Names", false);

    // Add the DataSet to the bindings of the NamedRange.
    namedRange1.DataBindings.Add(binding1);
}

// Displays the next data item in the NamedRange.
void button1_Click(object sender, EventArgs e)
{
    if (namedRange1.BindingContext != null)
    {
        BindingManagerBase bindingManager1 =
            namedRange1.BindingContext[ds, "Customers"];

        // Display the next item.
        if (bindingManager1.Position < bindingManager1.Count - 1)
        {
            bindingManager1.Position++;
        }

        // Display the first item.
        else
        {
            bindingManager1.Position = 0;
        }
    }
}