BindingList<T>.AddingNew Event

The AddingNew event occurs before a new object is added to the collection represented by the Items property. This event is raised after the AddNew method is called, but before the new item is created and added to the internal list. By handling this event, the programmer can provide custom item creation and insertion behavior without being forced to derive from the BindingList<T> class.

For more information about supplying custom new item functionality, see the AddNew method. For more information about handling events, see Consuming Events.

The following code example demonstrates how to handle the AddingNew event. For the complete example, see the BindingList<T> class overview topic.

// Create a new part from the text in the two text boxes. 
void listOfParts_AddingNew(object sender, AddingNewEventArgs e)
{
    e.NewObject = new Part(textBox1.Text, int.Parse(textBox2.Text));

}

.NET Framework

.NET Framework Client Profile

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference