How to click a button without re-load page ( or re-open)

[Symphony]

Hi, All:
I am using vb.net developing web application. I am new in web application.
My issue is:

I have a button "btnCalculateTotal" on a web page (form), click this button,
the "btnCalculateTotal_Click" event will calculate the total and beside the
button there is text field will show the result. but each time when I click
the button, the page will be reload and goes to the top of the page. How
should I just click the button, do not reload(or reopen) the page and show
the result right on the text field.

[Cor Ligthert]

Sympony,

the load event is always executed when there is a postback

Therefore you can test the IsPostBack if that is happening in that load
event

http://msdn.microsoft.com/library/de...tbacktopic.asp

I hope this helps?

Cor

[Symphony]

but I think for the button on_click event, it is always load the page, how
should I click the button and do not load the page?

Thanks.

"Cor Ligthert" wrote:

Sympony,

the load event is always executed when there is a postback

Therefore you can test the IsPostBack if that is happening in that load
event

http://msdn.microsoft.com/library/de...tbacktopic.asp

I hope this helps?

Cor

[Cor Ligthert]

> but I think for the button on_click event, it is always load the page, how

should I click the button and do not load the page?

You cannot (when it is a serverside button).
(ASPNET is stateless, so when you do not load the page there is nothing)

However in the link I showed you is told how to overcome the load event.

Cor

[Shuvro Mazumder [MSFT]]

You might consider using a client side button whose handler code is
generated form the server side using RegisterClientScript(). You can get the
clientId of the server side text box.

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This posting is provided "AS IS" with no warranties, and confers no rights.
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"Cor Ligthert" <no************@planet.nl> wrote in message
news:uH**************@TK2MSFTNGP12.phx.gbl...

but I think for the button on_click event, it is always load the page, how should I click the button and do not load the page?

You cannot (when it is a serverside button).
(ASPNET is stateless, so when you do not load the page there is nothing)

However in the link I showed you is told how to overcome the load event.

Cor