textbox date validation problem with alert

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I have a textbox and a ajax clander.when user select less then today date at same time should be alert "start date should not be less then today date".

Posted 11-Feb-13 19:36pm

Raju2049

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Ankur^\m/ 12-Feb-13 1:38am

check out the calender properties. It should support that out of the box.

2 solutions

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Avik Ghosh22 · Answer 1 · 2013-02-11T19:59:00

Solution 1

http://social.microsoft.com/Forums/en/crmdevelopment/thread/2f11c2b3-a259-4e5b-976a-dada118f587e[^]
http://stackoverflow.com/questions/6135433/javascript-check-end-date-is-greater-than-or-equal-to-start-date[^]
http://forums.asp.net/t/1373420.aspx[^]

Posted 11-Feb-13 19:59pm

Avik Ghosh22

Updated 12-Feb-13 2:53am

v3

_Amy · Answer 2 · 2013-02-11T20:10:00

Try this:
HTML:

ASP.NET

<act:calendarextender id="ceTest" runat="server" onclientdateselectionchanged="dateValidation" targetcontrolid="txtDate" xmlns:act="#unknown" />

JavaScript:

JavaScript

function dateValidation() {
    var obj = document.getElementById("<%=txtDate.ClientID%>");
    var day = obj.value.split("/")[0];
    var month = obj.value.split("/")[1];
    var year = obj.value.split("/")[2];
    if ((day < 1 || day > 31) || (month < 1 && month > 12) && (year.length != 4)) {
        alert("Invalid Format"); return false;
    }
    else {
        var dt = new Date(year, month - 1, day);
        var today = new Date();
        if ((dt.getDate() != day) || (dt.getMonth() != month - 1) || (dt.getFullYear() != year) || (dt > today)) {
            alert("Invalid Date"); return false;
        }
    }
}

--Amit