Occurs when the content of the System.Web.UI.HtmlControls.HtmlTextArea control changes between posts to the server.
The HtmlTextArea.ServerChange event is raised when the content of the System.Web.UI.HtmlControls.HtmlTextArea control changes between posts to the server. This event is commonly used to perform data validation on the text box.
This event is only raised when the user initiates a post to the server, such as clicking a submit button. This event does not cause a post to the server to occur.
The control must have viewstate enabled for the HtmlTextArea.ServerChange event to work correctly.
For more information about handling events, see Consuming Events.