ComboBox Issue: Cannot bind to new value member

Question

I\'v got a combobox that I created as a user control(it\'s actually made up of a label, combobox and textbox). I\'m trying to bind a dataset to the combobox datasource, but

Answer 1

I think you have the property Modifiers of your combo to something different from Public.
However I will choose to implement two new public properties at the usercontrol level.
DisplayMember and ValueMember just to avoid that ugly cast.
In the set/get accessor I will reflect the values in/from the internal combo

public string DisplayMember
{ 
    get { return combobox1.DisplayMember; } 
    set { combobox1.DisplayMember = value;} 
} 
public string ValueMember 
{ 
    get { return combobox1.ValueMember; } 
    set { combobox1.ValueMember = value;} 
}