Provides data for the ItemInserting event.
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
Thetype exposes the following members.
|Equals(Object)||Determines whether the specified object is equal to the current object. (Inherited from Object.)|
|GetHashCode||Serves as the default hash function. (Inherited from Object.)|
|GetType||Gets the Type of the current instance. (Inherited from Object.)|
|MemberwiseClone||Creates a shallow copy of the current Object. (Inherited from Object.)|
|ToString||Returns a string that represents the current object. (Inherited from Object.)|
The ListView control raises the ItemInserting event when an Insert button in the control is clicked, but before the ListView control inserts the record. (An Insert button is a button whose CommandName property is set to "Insert".) This enables you to provide an event-handling method that performs a custom routine whenever this event occurs. For example, you can validate or HTML-encode the values of a record before it is inserted it in the data source.
A object is passed to the event-handling method. This object enables you to determine the value of an optional command argument that is sent to the ListView control. You can access the ListViewItem object that is being inserted by using the Item property. You can also read or modify the field values for the new record by using the Values property. To cancel the insert operation, set the Cancel property to true.
For a list of initial property values for an instance of the class, see the ListViewInsertEventArgs constructor.
The following example shows how to use the object to cancel an insert operation if the data item contains an empty value.
This example contains a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview.