Provides data for the ItemInserting event.
Assembly: System.Web (in System.Web.dll)
Thetype exposes the following members.
|Cancel||Gets or sets a value indicating whether the event should be canceled. (Inherited from CancelEventArgs.)|
|CommandArgument||Gets the command argument for the insert operation passed to the FormView control.|
|Values||Gets a dictionary that contains the field name/value pairs for the record to insert.|
|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 FormView control raises the ItemInserting event when an Insert button (a button with its CommandName property set to "Insert") within the control is clicked, but before the FormView control inserts the record. This allows you to provide an event-handling method that performs a custom routine, such as HTML encoding or validating the values of a record before inserting it in the data source, whenever this event occurs.
A object is passed to the event-handling method, which allows you to determine the value of an optional command argument sent to the FormView control and to indicate that the insert operation should be canceled. To determine the value of the command argument, use the CommandArgument property. To cancel the insert operation, set the Cancel property to true. You can also read or modify the field values for the new record by using the Values property.
For more information about handling events, see Consuming Events.
For a list of initial property values for an instance of the class, see the FormViewInsertEventArgs constructor.
The following example demonstrates how to use the object passed to the event-handling method for the ItemInserting event to cancel an insert operation when the user leaves a field empty.
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.