Can only have 1 ProvidePropertyAttribute on ExtenderProvider ?

I can't get this to work with more than 1 provideproperty attributes...
only the first one is showing up on the properties tab in a form... any
ideas? thanks

ie

[ProvideProperty("PropertyName", typeof(ComboBox)),
ProvideProperty("PropertyName", typeof(TextBox)),
ProvideProperty("PropertyName", typeof(CheckBox)),
ProvideProperty("SettingComboBoxValueType", typeof(ComboBox))]
public class AppSettingsProvider : Component, IExtenderProvider

nor

[ProvideProperty("PropertyName", typeof(TextBox))]
[ProvideProperty("PropertyName", typeof(CheckBox))]
[ProvideProperty("SettingComboBoxValueType", typeof(ComboBox))]
public class AppSettingsProvider : Component, IExtenderProvider