My friend done this below coding for custom control

<a href="javascript:__doPostBack('id','msg');">click</a>

now i want to show confirm dialog box while click this anchor link.

Is it possible?. i want to write script as inline.

My friend done this below coding for custom control

<a href="javascript:__doPostBack('id','msg');">click</a>

now i want to show confirm dialog box while click this anchor link.

Is it possible?. i want to write script as inline.

• javascript
• html

Share Improve this question Follow asked Jun 21, 2012 at 9:24 YogeshWaranYogeshWaran 2,28144 gold badges2424 silver badges3232 bronze badges 4

• Create a function (e.g. confirm()) where you do your according stuff and call it from __doPostBack(). – Christoph Commented Jun 21, 2012 at 9:27
• @Christoph There already is a confirm function in javascript. – Denys Séguret Commented Jun 21, 2012 at 9:28
• @dystroy If you want to use the standard ugly builtin confirm-dialog, yes. – Christoph Commented Jun 21, 2012 at 9:29
• Using elegant confirm dialog is more work and requires some javascript/html/css knowledge. – Denys Séguret Commented Jun 21, 2012 at 9:31

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3 Answers 3

Sorted by: Reset to default 3

Do this :

<a href="javascript:if (window.confirm('Really?')){__doPostBack('id','msg');};">click</a>

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But at some point, you'd want to stop using only inline code and have a look at other clearer ways to add javascript in your code.

You may use a script block like this in the HEAD of your HTML file :

<script>
    function doOnClick(){
       if (window.confirm('Really?')){
           __doPostBack('id','msg');
       };
    }
</script>

And then your link bees

<a href="javascript:doOnClick();">click</a>

Of course, this doesn't feel much simpler with only one function but it helps you put all your functions in the same place and make lighter and clearer html.

---

An alternative would be to use jQuery, so that you may totally avoid putting javascript in the html part.

The html is then

<a id=myLink>click</a>

And your script, now at the end of the body, is this one :

<script>
   $(document).ready(function(){
       $('#myLink').click(function(){
           if (window.confirm('Really?')){
               __doPostBack('id','msg');
           };
       });

       // other codes will e here
   });
</script>

You're not at all required to code it this way now, as you only have a very light function, but if your code grows I suggest you start considering it and look at the jquery tutorials.

Of course. Here is a small snippet, not elegant but it works...

<a href="javascript:if(confirm('Do you really want to post?')) {__doPostBack('id','msg');};">click</a>

I actually had to look this up because I haven't used confirm, alert and prompt in a very long time.

confirm returns true/false depening on what the user selected (OK/Cancel, respectively).

So your resulting code would be

<a href="javascript:if (confirm('Are you sure?')) __doPostBack('id','msg');">click</a>