Net gridview rowupdating

This enables you to provide an event-handling method that performs a custom routine, such as checking the results of the update operation, whenever this event occurs.A Grid View Updated Event Args object is passed to the event-handling method, which enables you to determine the number of rows affected and any exceptions that might have occurred. To cancel the update operation, set the collections, if necessary, before the values are passed to the data source.A common way to use these collections is to HTML-encode the values supplied by the user before they are stored in the data source. If you don't use one of the Data Source controls, you are required to handle the Row Updating event.

Every one can use it to compare the new value with old ones.If we move our mouse on to the variables, which hold the cell values, we can see the old value instead of new updated value (Refer the debugging Screen Shot at the Top). You're accessing so many items without null checks that it could be any number of things. Are you sure all of the controls exist in the cells you're specifying? Grid View和Check Box结合:效果图:后台代码:using System;using System. Page{ Sql Connection sqlcon; string str Con = "Data Source=(local); Database=北风贸易; Uid=sa; Pwd=sa"; protected void Page_Load(object sender, Event Args e) public Sql Data Reader ddlbind() 前台主要代码:5.