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Let's enhance this tutorial to include a client-side messagebox summarizing any validation problems.
While the default editing and inserting interfaces for the Bound Field and Check Box Field can be helpful, the interface lacks any sort of validation.
If a user makes a data entry mistake - such as omitting the (such as -50) an exception will be raised from within the depths of the application architecture.
Figure 1: The Previous Example Allows Users to Add New Products and Edit Existing Ones (Click to view full-size image) Our goal for this tutorial is to augment the Details View and Grid View to provide validation controls.
In particular, our validation logic will: in action).
s of those validation controls that detected invalid data.
This summary data can be displayed as text on the web page or through a modal, client-side messagebox.
NET 1.x had these same five validation controls, ASP.
NET 2.0 has added a number of improvements, the main two being client-side script support for browsers other than Internet Explorer and the ability to partition validation controls on a page into validation groups. To accomplish this, click on the Edit Templates link from the Grid View's smart tag to bring up the template editing interface.
If you attempt to omit the name or enter an invalid price value when editing a product, an asterisk appears next to the textbox.
As Figure 8 shows, a price value that includes the currency symbol such as .95 is considered invalid.
Specifically, this tutorial takes the example created in the Examining the Events Associated with Inserting, Updating, and Deleting tutorial and augments the editing and inserting interfaces to include appropriate validation.Tags: Adult Dating, affair dating, sex dating