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maniva View Drop Down
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Points: 82 		Post Options Post Options   Thanks (0) Thanks(0)   Quote maniva Quote  Post ReplyReply Direct Link To This Post Topic: Date Function
    Posted: 18 February 2003 at 6:14am

I've added two date in a form. The function to check the field in the form is not as but is in javascript.

Now I don't know how :
- To Check if the date are valid 
- To check if the second one is lover than the first one. 

 

Thanks
Ivano Mangiarotti
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MorningZ View Drop Down
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Points: 1793 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MorningZ Quote  Post ReplyReply Direct Link To This Post Posted: 18 February 2003 at 7:34am
function validateDates() {
    var date1 = document.forms[ 'form name' ][ 'field name 1' ].value;
    var date2 = document.forms[ 'form name' ][ 'field name 2' ].value;

    if IsNaN( new Date(date1) ) {
        //date 1 is not a date
        return false;
        }
    if IsNaN( new Date(date2) ) {
        //date 2 is not a date
        return false;
        }
    if ( new Date(date1) < new Date(date2) ) {
        //Second date is invalid
        return false;
    }
    return true; //Dates Validated
}

want more examples? search google for "javascript date validation"

Edited by MorningZ
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maniva View Drop Down
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Joined: 04 April 2002
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Points: 82 		Post Options Post Options   Thanks (0) Thanks(0)   Quote maniva Quote  Post ReplyReply Direct Link To This Post Posted: 18 February 2003 at 9:43am

Thank you morningZ.

Only a question.
is not possible to use ASP instead javascript in the function to check the form field.

If yes why allways I found javascript ?

Thanks
Ivano Mangiarotti
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MorningZ View Drop Down
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Points: 1793 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MorningZ Quote  Post ReplyReply Direct Link To This Post Posted: 18 February 2003 at 9:49am
of course its possible in VBScript (you appeared to ask for javascript in the orginal post)

VBScript version:

<%
Date1 = Request("Field Name Date 1")
Date2 = Request("Field Name Date 2")

if Not IsDate(Date1) then
    'Date 1 is not valid
elseif Not IsDate(Date2) then
    'Date 2 is not valid
elseif Cdate(Date1) < Cdate(Date2) then
    'Date 2 is not less than Date 1
else
    'Dates are valid at this point
end if
%>
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maniva View Drop Down
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Joined: 04 April 2002
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Points: 82 		Post Options Post Options   Thanks (0) Thanks(0)   Quote maniva Quote  Post ReplyReply Direct Link To This Post Posted: 18 February 2003 at 10:33am

I was asking for javascrip because in all the ASP page provided with Forum or other application I found JSP.

Do you know Why ?


Thank's a lot.
Ivano Mangiarotti
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Bunce View Drop Down
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Points: 846 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bunce Quote  Post ReplyReply Direct Link To This Post Posted: 20 February 2003 at 10:34pm

Think you've got that backwards..

The majority of server-side coding in ASP is done using VBScript. If you search the web for samples and tutorials then you'll find that maybe 1 in 10 are written in JScript.

Cheers,
Andrew
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