Require JavaScript Validation bw From date and To date Texboxes

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Hello,

I have two Textboxes txtFromDate and txtToDate

For this I want JavaScript Function that Should validate

--> From Date should be less than To Date
--> To DAte should be greater than From Date

Note: I am Using Calender Extender Control from
Ajax Control Toolkit for these both Textboxes

FROM DATE :

<asp:TextBox ID="txtFromDate" runat="server" 
  Width="100px" Enabled="false">
<asp:CalendarExtender ID="CalendarExtender1" runat="server" 
  TargetControlID="txtFromDate"
  PopupButtonID="ImgButton1" 
  DaysModeTitleFormat="MMMM - yyyy"           
  Format="MM/dd/yyyy"> 

 
<asp:ImageButton runat="Server" ID="ImgButton1" 
  ImageUrl="~/Images/Calendar_Icon.png" 
  Height="20px" Width="20px" />

TO DATE :

<asp:TextBox ID="txtToDate" runat="server" 
  Width="100px" Enabled="false">
<asp:CalendarExtender ID="CalendarExtender2" runat="server" 
  TargetControlID="txtToDate"
  PopupButtonID="ImgButton2" 
  DaysModeTitleFormat="MMMM - yyyy"           
  Format="MM/dd/yyyy"> 

 
<asp:ImageButton runat="Server" ID="ImgButton2" 
  ImageUrl="~/Images/Calendar_Icon.png" 
  Height="20px" Width="20px" />

But I want Validation Like as in following Link

http://www.obout.com/calendar/calendar_daterange.aspx[^]

Posted 7-Jun-11 23:50pm

Prasad CM

Updated 12-Jun-11 22:44pm

v4

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Prerak Patel 8-Jun-11 5:52am

Did you try something?

[no name] 8-Jun-11 6:00am

post what you have done so far, let us take a look and correct the mistake

Prasad CM 9-Jun-11 6:48am

Ya I am Using Ajax Control Toolkit
Calender Extender for those Textboxes
But I want Validation Like as in following Link
http://www.obout.com/calendar/calendar_daterange.aspx

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Ashishmau · Answer 1 · 2011-06-08T00:04:00

Solution 1

You can use Date object for this.First get your textboxes values in variables. then

C#

var fromdate=new Date("fromdate");
var todate = new Date("Todate");
if(fromdate>todate)
{
alert("fromdate cannot greater than todate");
return false;
}
else
{
return true;
}

Posted 8-Jun-11 0:04am

Ashishmau

N!dh!sh · Answer 2 · 2011-06-08T00:14:00

C#

function ValidateEndDate() {
            if (document.getElementById('<%=txtStartDate.ClientID %>').value != "" && document.getElementById('<%=txtEndDate.ClientID %>').value != "") {
                var StartDate;
                var EndDate;
                var value = document.getElementById('<%=txtStartDate.ClientID %>').value;
                var year = value.substring(0, value.indexOf("-"));
                value = value.substring(value.indexOf("-") + 1);
                var smonth = value.substring(0, value.indexOf("-"));
                var dt = value.substring(value.indexOf("-") + 1);
                StartDate = Date.UTC(year, smonth, dt, 0, 0, 0);
                value = document.getElementById('<%=txtEndDate.ClientID %>').value;
                year = value.substring(0, value.indexOf("-"));
                value = value.substring(value.indexOf("-") + 1);
                smonth = value.substring(0, value.indexOf("-"));
                dt = value.substring(value.indexOf("-") + 1);
                EndDate = Date.UTC(year, smonth, dt, 0, 0, 0);
                if (EndDate < StartDate) {
                    alert('End Date cannot be before Start Date');
                    return false;
                }
            }

            return true;
        }

S.M.Naresh · Answer 3 · 2011-06-08T00:14:00

Hi Prasad,
This may help you...

C#

function ValidateDates(){

           var start = new Date(txtStartDate.value);
           var end = new Date(txtEndDate.value);
           var TodayDate = new Date();
           var one_day = 1000 * 60 * 60 * 24;
           if (Math.ceil((start.getTime() - end.getTime()) / (one_day)) > 0) {
               alert("To Date cannot be less than From Date");
               return false;
}
}

Regards,
Naresh.

Require JavaScript Validation bw From date and To date Texboxes

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