__doPostback

[crazyboybert]

Hi All

This is not really something I'm having a problem with so much as something i'm wondering about. When you create a control which is not a button but has a postback event, e.g. a dropdownlist with a selectedindexchanged event and autopostback=true, then .NET outputs a client function called __doPostback which is used tot submit the form.

Does anyone know a way to tell .NET output this function regardless of wether it is needed by a webcontrol to handle the postback. Say i had a plain anchor I wished to use to submit the page via the client side onclick event. How can I tell .NET to output the __doPostback function so I can use it to handle the form submit.

Just a thought.

Rob

 

[Blaxo]

You can't - __doPostback is created by .NET only when you have a control that will automatically do a postback. To submit the form when clicking on a link, use a LinkButton. And if you really need that function, just create your own javascript function that does the same as the .NET generated function. To rely on calling generated code is generally not a good thing.

regards,
Blaxo

 

[crazyboybert]

Cheers Blaxo

As I thought then really - i'm already using my own function to handle the postback for this type of scenario anyway. Was just wondering if you could force .NET to generate the __doPostback on demand as a rather neater way of handling it. Ah well such is life...

Rob