JavaScript confirm cancel button not stopping JavaScript

Question

I have a delete button that is tied to some comments on a page i have. When you click the delete button i am trying to get a confirm dialog box to pop up asking if you are

Answer 1

onclick="if (confirm('Are you...?')) commentDelete(1); return false"

You are missing an if. In your version, first you get a question, and then regardless of the answer, you call commentDelete.

Answer 2

You should return false to prevent the default event. This should work:

onclick="confirm('Are you sure that you want to delete this comment?'); commentDelete(1);return false;"

Answer 3

function confirmCancel(){
   var msj='Are you sure that you want to delete this comment?';
   if (!confirm(msj)) { 
      return false;
   } else {
      window.location='backcables.php';
   }
}

Answer 4

Maybe it's because you set the type=submit in the form that contains the javascript.

You should set it to button or image or whatever if you don't want to be submitted if clicked cancel

<form name="form_name">
    <input type="button" onclick="javascript_prompt()" value="GO"/>
    <input type="hidden" name="new_name" value=""/>
</form>

example of javascript prompt:

function javascript_prompt(){
    var name = prompt("Tell me your name.", "");
    if (name != "" && name != null){
        document.form_name.new_name.value = name;
        document.form_name.submit();
    }else{
        return false;
    }
}

Answer 5

You are treating the confirm is if it is a if statement, it just returns a Boolean true or false.

if(confirm('foo')){ alert('bar'); }

Answer 6

In the head tag you can write following code:

<script language="javascript" type="text/javascript">

    function getConfirmation()
    {
        var retVal = confirm("Do you want to continue ?");
        if (retVal == true)
        {
            alert("User wants to continue!");
            return true;
        } 
        else
        {
            alert("User does not want to continue!");
            return false;
        }
    }
</script>

After writing this code you can call this function in the following code:

<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False"
    CommandName="Edit" Text="Edit" **OnClientClick="getConfirmation()"**>
</asp:LinkButton>