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UpdateCommand Event

DataList::UpdateCommand Event

Occurs when the Update button is clicked for an item in the DataList control.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

public:
 event DataListCommandEventHandler^ UpdateCommand {
	void add (DataListCommandEventHandler^ value);
	void remove (DataListCommandEventHandler^ value);
}

The UpdateCommand event is raised when the Update button for an item is clicked.

A typical handler for the UpdateCommand event updates the data, sets the EditItemIndex property to -1 (to deselect the item), and then rebinds the data to the DataList control.

Caution noteCaution

This control can be used to display user input, which might include malicious client script. Check any information that is sent from a client for executable script, SQL statements, or other code before displaying it in your application. You can use validation controls to verify user input before displaying the input text in a control. ASP.NET provides an input request validation feature to block script and HTML in user input. For more information, see Securing Standard ControlsHow to: Protect Against Script Exploits in a Web Application by Applying HTML Encoding to Strings, and Validating User Input in ASP.NET Web Pages.

For more information about handling events, see How to: Consume Events in a Web Forms Application.

The following code example demonstrates how to specify and code a handler for the UpdateCommand event. It allows you to update the selected item in the DataList control with the new values entered by the user when the Update button is clicked.

NoteNote

The following code sample uses the single-file code model and may not work correctly if copied directly into a code-behind file. This code sample must be copied into an empty text file that has an .aspx extension. For more information on the Web Forms code model, see ASP.NET Web Forms Page Code Model.

No code example is currently available or this language may not be supported.
No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1
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