>>By databind, do you mean setting the datasource, displaymember and valuemember properties in my code?<

No, I mean DataBinding the SelectedValue to either a property or a DataTable (sorry this will be in C#, you can use one of the converters to convert it).

// Binding to a property
private int m_Mine;
public int Mine
{
  get {return m_Mine;}
  set {this.m_Mine = value;}
}

this.MyCombo.DataBindings.Add("SelectedValue", this, "Mine");

// Binding to a DataTable
this.MyCombo.DataBindings.Add("SelectedValue", MyDataTable, "MyColumn");

~~Bonnie