Start Date - End Date validation using Compare Validator Misfires

Question

I need my end date to be always greater than start date, I tried validation using CompareValidator.

Code is as follows:

I have a text box start date

<asp:TextBox ID="TxtStartDate"
             runat="server" />

<asp:CalendarExtender Enabled="True"
                      ID="TxtStartDate_CalendarExtender"
                      TargetControlID="TxtStartDate"
                      runat="server" />

Another TextBox End date.

<asp:TextBox ID="TxtEndDate"
             runat="server" />

<asp:CalendarExtender Enabled="True"
                      ID="TxtEndDate_CalendarExtender"
                      TargetControlID="TxtEndDate"
                      runat="server" />

<asp:CompareValidator ControlToCompare="TxtStartDate"
                      ControlToValidate="TxtEndDate"
                      Display="Dynamic"
                      ErrorMessage="CompareValidator"
                      ID="CompareValidator1"
                      Operator="GreaterThan"
                      Type="Date"
                      runat="server" />

But the compare field validator misfires.

For example when start date is 2/04/2012 and end date is 10/04/2012 it fires.

Hope this will help you http://stackoverflow.com/questions/9735836/asp-net-compare-validator-issue-while-specifying-date-format-in-calender-extende — shanish, May 21 '12 at 12:10

score 10 · Accepted Answer · answered May 21 '12 at 12:15

10

Simply you can try like this

<asp:CompareValidator ID="cmpVal1" ControlToCompare="txtStartDate" 
         ControlToValidate="txtEndDate" Type="Date" Operator="GreaterThanEqual"   
         ErrorMessage="*Invalid Data" runat="server"></asp:CompareValidator>

answered May 21 '12 at 12:15

shanish

1,964
12
35
62

@Nikhil probably the [thread's Culture and UI Culture are not set](http://msdn.microsoft.com/en-us/library/bz9tc508.aspx) (or not set correctly). – Albireo May 22 '13 at 14:36

score 3 · Answer 2 · edited Oct 12 '12 at 10:02

3

This one is correct.. It solved my problem.

<asp:CompareValidator ID="cmpVal1" ControlToCompare="txtStartDate" ControlToValidate="txtEndDate" Type="Date" Operator="GreaterThanEqual"  ErrorMessage="ToDate should be greater than FromDate" runat="server"></asp:CompareValidator>

And don't forget to write:

cmpVal1.Validate()

on the event where comparison occurs.

edited Oct 12 '12 at 10:02

Ignacio Contreras Pinilla

511
1
5
21

answered Oct 12 '12 at 09:47

Rohini

31
2

Android villa · Answer 3 · 2018-02-05T19:00:46.397

START DATE(FROM) AND END DATE (TO) VALIDATION USING JAVASCRIPT

It care about From date and To date both should be less then todays date(Currentdate). From date should be less then To date.

Text box

<asp:TextBox ID="txtFromDate" runat="server" onChange="javascript: txtFromDateChanged(this)"></asp:TextBox>
<asp:TextBox ID="txtToDate" runat="server" onChange="javascript: txtToDateChanged(this);" ></asp:TextBox>

java script(Put Script block in Head Section)

<script type="text/javascript">

        function txtToDateChanged(sender, args) {
            var date = new Date();
            var startDate = Date.parse(document.getElementById('<%= txtFromDate.ClientID %>').value);
            var endDate = Date.parse(document.getElementById('<%= txtToDate.ClientID %>').value);
            var timeDiff = endDate - startDate;
            var daysDiff = Math.floor(timeDiff / (1000 * 60 * 60 * 24));

            if (date > endDate) {
                document.getElementById('<%= txtToDate.ClientID %>').value = "";
                alert('*Select date greater than Today.');
            }
            if (daysDiff < 0) {
                document.getElementById('<%= txtToDate.ClientID %>').value = "";
                alert('*FromDate should be less than Todate');
            }

        }
        function txtFromDateChanged(sender, args) {
            var date = new Date();
            var startDate = Date.parse(document.getElementById('<%= txtFromDate.ClientID %>').value);
            if (date > startDate) {
                document.getElementById('<%= txtFromDate.ClientID %>').value="";
                alert('*Select date greater than Today.');
            }
        }
    </script>

Start Date - End Date validation using Compare Validator Misfires

3 Answers3

START DATE(FROM) AND END DATE (TO) VALIDATION USING JAVASCRIPT