Coldfusion - checking if <input type="image" /> was clicked

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1

Im using an image input field and i need to check if it was clicked

For <input type=“submit” /> i can just do


<cfif isDefined("FORM.MySubmitButton")>
 	// Do Stuff
</cfif>

but this doesnt work with <input type=“image” />, it is never defined.

any ideas?

2 

<input type="image" name="MySubmitButton" />

Always name your form elements. Eliminates the guess work.

3

i always do a switch on cgi.request_method, its the most portable.

<cfswitch expression=“#cgi.request_method#”>
<cfcase value=“GET”>
the form goes here
</cfcase>
<cfcase value=“POST”>
form processing here
</cfcase>
</cfswitch>

man, its cfswitch day!

4

The problem is ive more than one submit button on my form. One button is for saving, one button is for deleting selected items.


 <form action="file.cfm" method="post">
 	// form stuff in here
 	<input type="submit" name="SaveItemsButton" value="Save" />
 	<input type="submit" name="DeleteSelectedItemsButton" value="Delete" />
 </form>

When the above form is submitted, i can check which button was clicked by going


 <cfif isDefined("Form.SaveItemsButton")>
 	// code to save 
 </cfelseif isDefined("Form.DeleteSelectedItems")>
 	// code to delete
 </cfif>

This works fine. But i want to be able to do the same thing with the inputs being of type “image” instead of “submit”. Is this possible?

5

If you want to see that an image button was clicked, try this:


<input type="image" name="mysubmit" />



<cfif isDefined("Form.mysubmit.x")>
//code for imagebutton clicks

Image buttons send more than one value:


[name].x - x-coordinate of where in the image it was clicked.
[name].y - y-coordinate of where in the image was clicked.
[name] - value of the image button input.
6

Cheers man

Weird how Form.MySubmit isnt defined but Form.MySubmit.x is

Edit:

ok, got to use the ‘value’ attribute for the input tag for Form.MySubmit to be defined

7