CODEWITHSUNDEEP
c#asp.netpostbrowserwebforms
crypted
crypted

Reputation: 10306

How does browser post values that are not present in the dom

I have spent whole day searching for the answer but could not find any. When I use chrome browser inspector I can see following fields being posted.

__EVENTTARGET:

__EVENTARGUMENT:

__VIEWSTATE:'-----------LONG LONG-----------'

which I can find inside the Dom, all are hidden fields But the browser is still sending following fields

ctl00$ContentPlaceHolder1$imgbSearch.x:37

ctl00$ContentPlaceHolder1$imgbSearch.y:9

These are completely not present in the Dom not even those values.

what I could find was

<div class="buttonBox">
                <input type="image" name="ctl00$ContentPlaceHolder1$imgbSearch" id="ctl00_ContentPlaceHolder1_imgbSearch" src="Images/Buttons/Find.jpg" onclick="javascript:WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions(&quot;ctl00$ContentPlaceHolder1$imgbSearch&quot;, &quot;&quot;, true, &quot;SearchPanel&quot;, &quot;&quot;, false, false))" style="border-width:0px;" />
            </div>

So can you please help me find how this happened. How do I get those missing fields and values

Upvotes: 0

Views: 58

Answers (1)

crypted
crypted

Reputation: 10306

I am answering this question myself. If interested you can find more info http://www.w3.org/TR/html-markup/input.image.html

it states.

The input element with a type attribute whose value is "image" represents either an image from which the UA enables a user to interactively select a pair of coordinates and submit the form, or alternatively a button from which the user can submit the form.

Upvotes: 1

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