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UpdatePanel sends enter page back?
Posted on 2008-10-11
I've read that the asp.net (3.5) UpdatePanel sends the entire page back on postback. How can I verify this?
If I want the UpdatePanel functionality without sending back the entire page, would I need to create my own AJAX async and an HTML server side DIV tag to hold everything or just go with a regular Panel? I want to create a CustomPanel that is basically an UpdatePanel but only renders what's in the panel on async calls.
If I want the UpdatePanel functionality without sending back the entire page, would I need to create my own AJAX async and an HTML server side DIV tag to hold everything or just go with a regular Panel? I want to create a CustomPanel that is basically an UpdatePanel but only renders what's in the panel on async calls.
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5 Comments
red the following link - you will find some good discussion about update panels - it might be helpful
http://stackoverflow.com/questions/72541/one-update-panel-vs-multiple-update-panels
http://stackoverflow.com/questions/72541/one-update-panel-vs-multiple-update-panels
The reason of existance of updatepanel is that we dont want to send back the entire page. Updatepanel sends back the controls which are enclosed within updatepanel.
I have this type of layout:
<updatepanel ID="panelContainer">
<updatepanel ID="panel1">controls</upda
<updatepanel ID="panel2" visible=false>controls</up
controls
<updatepanel ID="panel3">controls</upda
</updatepanel>
Usually, something in say panel1 will cause panel2 to become visible. I need panelContainer for this to happen dynamically. The problem is that panel3 and any other panels not directly involved in this action gets caught up in the network traffic (part of response), which is unnecessary. Is there a way around that?
<updatepanel ID="panelContainer">
<updatepanel ID="panel1">controls</upda
<updatepanel ID="panel2" visible=false>controls</up
controls
<updatepanel ID="panel3">controls</upda
</updatepanel>
Usually, something in say panel1 will cause panel2 to become visible. I need panelContainer for this to happen dynamically. The problem is that panel3 and any other panels not directly involved in this action gets caught up in the network traffic (part of response), which is unnecessary. Is there a way around that?
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