<ISNet.Serialization.XmlSerializableAttribute()>
<ISNet.Serialization.BinarySerializableAttribute()>
<EditorAttribute(EditorBaseTypeName="System.Drawing.Design.UITypeEditor, System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", EditorTypeName="ISNet.WebUI.Design.ClientSideEventEditor, ISNet.WebUI.Design")>
<ISNet.EventParameterAttribute("controlId")>
<NotifyParentPropertyAttribute(True)>
<DescriptionAttribute("This event fired when an item is about to be added.")>
<DefaultValueAttribute()>
Public Property OnAddItem As String

Dim instance As ClientEvents
Dim value As String
 
instance.OnAddItem = value
 
value = instance.OnAddItem

[ISNet.Serialization.XmlSerializableAttribute()]
[ISNet.Serialization.BinarySerializableAttribute()]
[EditorAttribute(EditorBaseTypeName="System.Drawing.Design.UITypeEditor, System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", EditorTypeName="ISNet.WebUI.Design.ClientSideEventEditor, ISNet.WebUI.Design")]
[ISNet.EventParameterAttribute("controlId")]
[NotifyParentPropertyAttribute(true)]
[DescriptionAttribute("This event fired when an item is about to be added.")]
[DefaultValueAttribute()]
public string OnAddItem {get; set;}

public read-write property OnAddItem: String; 

ISNet.Serialization.XmlSerializableAttribute()
ISNet.Serialization.BinarySerializableAttribute()
EditorAttribute(EditorBaseTypeName="System.Drawing.Design.UITypeEditor, System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", EditorTypeName="ISNet.WebUI.Design.ClientSideEventEditor, ISNet.WebUI.Design")
ISNet.EventParameterAttribute("controlId")
NotifyParentPropertyAttribute()
DescriptionAttribute("This event fired when an item is about to be added.")
DefaultValueAttribute()
public function get,set OnAddItem : String

[ISNet.Serialization.XmlSerializableAttribute()]
[ISNet.Serialization.BinarySerializableAttribute()]
[EditorAttribute(EditorBaseTypeName="System.Drawing.Design.UITypeEditor, System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", EditorTypeName="ISNet.WebUI.Design.ClientSideEventEditor, ISNet.WebUI.Design")]
[ISNet.EventParameterAttribute("controlId")]
[NotifyParentPropertyAttribute(true)]
[DescriptionAttribute("This event fired when an item is about to be added.")]
[DefaultValueAttribute()]
public: __property string* get_OnAddItem();
public: __property void set_OnAddItem( 
   string* value
);

[ISNet.Serialization.XmlSerializableAttribute()]
[ISNet.Serialization.BinarySerializableAttribute()]
[EditorAttribute(EditorBaseTypeName="System.Drawing.Design.UITypeEditor, System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", EditorTypeName="ISNet.WebUI.Design.ClientSideEventEditor, ISNet.WebUI.Design")]
[ISNet.EventParameterAttribute("controlId")]
[NotifyParentPropertyAttribute(true)]
[DescriptionAttribute("This event fired when an item is about to be added.")]
[DefaultValueAttribute()]
public:
property String^ OnAddItem {
   String^ get();
   void set (    String^ value);
}

WebCombo1.LayoutSettings.ClientSideEvents.OnAfterAdd = "DoAddItem";

function DoAddItem() 
   {
      var combo = ISGetObject(controlId);
      if (confirm("The customer '" + combo.TextObj.value + "' is not exist. Do you want to add it?")) 
      return true;   
   }