Question

Asp and Javascript DateDiff Function

Asked by: allbird79

I'm trying to validate a form using DateDiff. I would like to call a function onBlur of a textbox that checks to see if the date entered is less than two weeks from today's date and if so Alerts that a textbox must be completed before the form can be submitted.

This is what I have so far:

<script language="javascript">
function reasonNeeded() {
var twoWeekDate = (form.dateRequired.value)
var dateDiffTest= [<%=DateDiff("d",twoWeekDate,date())%>]

 
      if (dateDiffTest > 14){//&&(form.reason.value !="")) {
        alert("Please give a reason why the due date is less than the minimum")
      form.reason.focus()
    }
    else {return true}  }
</script>

Thanks for any  help!

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Asked On
2006-03-02 at 13:01:35ID21758539
Tags

datediff

,

javascript

Topic

Active Server Pages (ASP)

Participating Experts
1
Points
100
Comments
4

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Answers

 

by: amit_gPosted on 2006-03-02 at 13:08:58ID: 16088850

You need a client side function take

http://www.fleegix.org/articles/2006/01/10/javascript-code-dateadd-code-and-code-datediff-code

That is quite good but is more involved. If you need something simpler you could use

<SCRIPT LANGUAGE=javascript>
function DateDiffInDays(sDate1, sDate2)
{
     var dtDate1 = Date.parse(sDate1);
     var dtDate2 = Date.parse(sDate2);
     return (dtDate2 - dtDate1) / (24 * 60 * 60 * 1000);
}
</SCRIPT>

make sure to pass correct date to it.

 

by: allbird79Posted on 2006-03-03 at 07:41:36ID: 16095381

I am trying to pass the dates from my form fields, but I haven't been able to get it to work.

function DateDiffInDays(sDate1, sDate2)
{
     var asdf
     var dtDate1 = Date.parse(sDate1);
     var dtDate2 = Date.parse(sDate2);
     return asdf=(dtDate2 - dtDate1) / (24 * 60 * 60 * 1000);
     
     if (asdf<14) {
     alert("asdf")}
     else {
     alert("try again")
     }
}
<input type="text" name="dateRequired" value=<%=(DateAdd("d",14,date()))%> class="normal" size="50" maxlength="20" onBlur="DateDiffInDays(this.form.dateRequested.value, this.form.dateRequired.value)" >
                 

Can you help me figure out where I'm going wrong??

Thanks!

 

by: amit_gPosted on 2006-03-03 at 13:28:51ID: 16098654

<script>
function ValidatedateRequested(sDate1, sDate2)
{
      var nDays = DateDiffInDays(sDate1, sDate2);

      alert(nDays);
      
      if (nDays > 14)
      {
            alert("Wrong date");
            return false;
      }
}

function DateDiffInDays(sDate1, sDate2)
{
     var asdf
     var dtDate1 = Date.parse(sDate1);
     var dtDate2 = Date.parse(sDate2);
     return (dtDate2 - dtDate1) / (24 * 60 * 60 * 1000);
}
</script>

<input type="text" name="dateRequired" value=<%=(DateAdd("d",14,date()))%> class="normal" size="50" maxlength="20" onBlur="ValidatedateRequested(this.form.dateRequested.value, this.form.dateRequired.value)" >

 

by: allbird79Posted on 2006-03-06 at 10:16:45ID: 16116837

Thanks amit_g

20120131-EE-VQP-002

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