how the server side identifies button click event

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hi i have one doubt of button click in asp.net, i have placed the button control with the OnClick event like

<asp:Button ID="mybutton" runat="server" Text="Insert" onclick="mybutton_Click" />

and some other controls(buttons, textboxes) in .aspx page. When i run the page, the button displays in the page source of the browser like

<input type="submit" name="mybutton" value="Insert" id="mybutton" />

here, it does not display the onclick event, then how the page calls the button click on the server side, how the server side identify which button cause the submit, and how this page moves to the server side.

Posted 6-Apr-12 4:15am

karthime

Updated 6-Apr-12 4:36am

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Not Active · Answer 1 · 2012-04-06T04:40:00

If you look at the rendered output for your page you should see an section at the top called VIEWSTATE. This encoded and encrypted block describes to the ASP.NET engine the server controls are on the page and what there state is. When the form is posted back to the server it will read this data, reconstitute the controls and fire any events.

To this for more detail
ASP.NET Page Life Cycle Overview[^]

bbirajdar · Answer 2 · 2012-04-06T04:41:00

The current value of every control on a Web Form is contained in the postback request. This is referred to as the Post Data

The content of the ViewState is also contained in the Post Data. ViewState holds the original property values of every control on a Web Form - before the user made any changes

If a postback was caused, for example, by a button click, Post Data is used by the IIS server to identify the button that caused the postback

vino2012 · Answer 3 · 2012-04-06T11:24:00

Solution 3

Your asp tag is having runat="server". Its executing in server and it produce relevant html tag and also bind your click event and give you response of that page. Then you are viewing your page source ,you are able to see only the browser executable things like html,css,javascript,etc.

Posted 6-Apr-12 11:24am

vino2012

how the server side identifies button click event

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