Client side onclick handler workaround for ASP:CHECKBOX

Provided by the FMS Development Team

If you need to add extra JavaScript code or validation to the onclick event handler of the checkbox that is rendered as a result of the ASP:CHECKBOX, you will need to use the html input control instead as a workaround. In the following code, the client side JavaScript function confirmCheck needs to be run before the form is submitted. This is achieved by using the INPUT tag instead of the ASP:CHECKBOX tag. Any server side event handlers can be handled by defining the server side event handler. In the following example, chkSignedOff_CheckedChanged will handle onserverchange event.

< INPUT id="chkSignedOff" onclick="confirmCheck();" type="checkbox" value="Accept Form" name="chkClient" runat="server" onserverchange="chkSignedOff_CheckedChanged">

<script language="JavaScript">
function confirmCheck()
  //Add client side JavaScript / validation code here



Code behind:

Protected Sub chkSignedOff_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
  '''Add server side code here
End Sub

REPLACES the following with client script:

<asp:checkbox id="chkSignedOff2" runat="server" Text="Accept Form" visible="false" AutoPostBack="True">


Code behind:

Private Sub chkSignedOff2_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles chkSignedOff2.CheckedChanged
  '''Add server side code here
End Sub

Return to Tips & Techniques Page

Additional Resources



Thank you! Thank you! I just finished reading this document, which was part of a link in the recent Buzz newsletter. I have printed it for others to read, especially those skeptical on the powers of Access and its capabilities.

Darren D.

View all FMS products for Microsoft Access All Our Microsoft Access Products



Free Product Catalog from FMS