asked on

How to invoke a checkbox change event within code behind

I have an ASP.NET page, I have a checkbox which has a checkbox change event.

How do I trigger a checkbox change event from code behind.

I tried to add this line in one of my methods to inovke the changed method
But it fails with object reference set to an instance of an object, because the value of System.Web.HttpUtility.UrlDecode(Request.Form("__EventTarget")) is Nothing

cbDetailOrder_SelectedIndexChanged(cbDetailOrder, New EventArgs())

Protected Sub cbDetailOrder_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles cbDetailOrder.SelectedIndexChanged

      If System.Web.HttpUtility.UrlDecode(Request.Form("__EventTarget")).EndsWith(cbDetailOrder.ID) Then
            'blah blah

      end if
End SUb

ASKER CERTIFIED SOLUTION

Gorkem Yuksel

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

SOLUTION

Carl Tawn

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

countrymeister

ASKER

gyuksel:
If I do the following
cbDetailOrder_SelectedIndexChanged(nothing, nothing)

as I already mentioned it fails
because the EVENTTARGET is empty

countrymeister

ASKER

carl_tawn:
I need to invoke the checkbox changed event, not sure if I can use Page,RegisterClientScript or somehow get the document checkbox changed event.

I have a link on a another page, which uses the query string to pass the order id. and on getting the order id I want to use cb_changed event to load the details of the orderid passed

SOLUTION

Carl Tawn

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

SOLUTION