Click here to Skip to main content
11,581,510 members (68,090 online)
Click here to Skip to main content

ASP.NET CheckBox Command in DataView or Repeater

, 9 Mar 2007 CPOL 97.6K 1.1K 48
Rate this:
Please Sign up or sign in to vote.
Describes a very simple way on how to use a CheckBox in a GridView or Repeater in a manner similar to a Button.

Screenshot - main.gif


This article describes a very simple way on how to use a CheckBox in a GridView or Repeater in a manner similar to a Button. This addresses the absence of the "CommandName" property in a CheckBox (CheckBoxField).

Use Cases

A user goes through a list of items and needs a quick way to flag some of the items. For example, to indicate what items are completed (or verified). And maybe, update a DateCompleted field on completion.

Unchecking in this case would change the status back to "Uncompleted" and maybe clear the DateCompleted field.

Limitations of ASP.NET

The standard way of achieving similar results would be to use a Button (or LinkButton) with the CommandName specified. The OnRowCommand event handler for a GridView (OnItemCommand for a Repeater) would handle the Click on such a button. Then, you could easily access the record ID through e.CommandArgument in these handlers.

In many of the cases like the one above, it would be preferable to use a CheckBox instead – it is more compact and clearly indicates the current state. But since there is no "CommandName" property for a CheckBox and the CheckedChanged event is not handled in OnRowCommand (OnItemCommand for a Repeater), how can we get a record ID for the checkbox row, so we could properly handle the event?


It can't get any simpler than that: just assign a record ID as a Text property for the CheckBox and then hide the text through CSS.


The example consists of a single ASPX file that has both a GridView and a Repeater that are bound to a DataTable with columns {ItemID int, ItemDescription string, Flag bool}.

Screenshot - Form.gif

Both the GridView and the Repeater have a TemplateField containing a CheckBox.

Screenshot - CheckBox.gif

The whole trick is in Text='<%#Eval("ItemID")%>'. Note that ItemID is hidden because the Text property for a CheckBox is rendered as <label> and we hide it with this style:

Screenshot - css.gif

The event hander now can easily access the current record ID and the status of the CheckBox:

Screenshot - handler.gif


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Ruslan Sudentas
Web Developer
United States United States
No Biography provided

You may also be interested in...

Comments and Discussions

QuestionThank You! Pin
laynusfloyd17-Aug-12 7:30
memberlaynusfloyd17-Aug-12 7:30 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.

| Advertise | Privacy | Terms of Use | Mobile
Web03 | 2.8.150603.1 | Last Updated 10 Mar 2007
Article Copyright 2007 by Ruslan Sudentas
Everything else Copyright © CodeProject, 1999-2015
Layout: fixed | fluid