How to do startdate and enddate validation when both are in different formats

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Hi I need the Startdate and Enddate validation for the startdate and Enddate when both are in different format.In my case Startdate is in dd/MM/yyyy and EndDate is in MM/dd/yyyy

What I have tried:

ASP.NET

<pre><td align="left">
                                                    <asp:TextBox ID="txtstart" runat="server" OnTextChanged="txtstart_TextChanged" MaxLength="10" />
                                                    <asp:CalendarExtender ID="CalendarExtender1" CssClass="Cal_Theme" TargetControlID="txtstart" Format="dd/MM/yyyy" runat="server">
                                                    </asp:CalendarExtender>

<td align="left">
                                                    <asp:TextBox ID="txtend" runat="server" OnTextChanged="txtend_TextChanged" MaxLength="10" />
                                                    <asp:CalendarExtender ID="CalendarExtender2" CssClass="Cal_Theme" TargetControlID="txtend" Format="dd/MM/yyyy" runat="server">
                                                    </asp:CalendarExtender>
                                                </td>

 <td>
                                                    <asp:CompareValidator ID="CompareValidatorT1" runat="server" ControlToValidate="txtend"
                                                        ControlToCompare="txtstart" Type="Date" ValidationGroup="Page" Operator="GreaterThanEqual"
                                                        ErrorMessage="Invalid Date Range"></asp:CompareValidator>

                                                </td>

Posted 4-Jun-17 19:18pm

Member 12605293

Updated 5-Jun-17 1:41am

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Comments

Richard Deeming 6-Jun-17 9:46am

Why are the dates in different formats? Both of the calendar extenders have the same format set, and it would only confuse your users to have two different controls expecting two different date formats on the same page.

Are you storing the values in the database as strings? If so, you should fix that urgently to use a more appropriate type[^]. The longer you leave it, the more difficult it will be to correct the problem.

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ZurdoDev · Accepted Answer · 2017-06-05T01:41:00

Solution 1

You will have to convert them to DateTime objects and compare that way.

Posted 5-Jun-17 1:41am

ZurdoDev

Comments

Maciej Los 5-Jun-17 11:44am

Short and to the point!
5ed!

Member 12605293 6-Jun-17 10:03am

Hi Maciej,
Answer is precious for me