<script type="text/javascript" language="javascript">
function CompareDates(source, args)
{
var str1 = document.getElementById("txtFromDate").value;
var str2 = document.getElementById("txtToDate").value;
var dt1 = parseInt(str1.substring(0,2),10);
var mon1 = parseInt(str1.substring(3,5),10);
var yr1 = parseInt(str1.substring(6,10),10);
var dt2 = parseInt(str2.substring(0,2),10);
var mon2 = parseInt(str2.substring(3,5),10);
var yr2 = parseInt(str2.substring(6,10),10);
var date1 = new Date(yr1, mon1, dt1);
var date2 = new Date(yr2, mon2, dt2);
if(date2 < date1)
{
//alert("To date cannot be greater than from date");
args.IsValid = false;
}
else
{
//alert("Submitting ...");
args.IsValid = true;
}
}
</script>
<table>
<tr>
<td>
From Date:
</td>
<td>
<asp:TextBox ID="txtFromDate" runat="server"></asp:TextBox>DD/MM/YYYY
</td>
</tr>
<tr>
<td>
To Date:
</td>
<td>
<asp:TextBox ID="txtToDate" runat="server"></asp:TextBox>DD/MM/YYYY
<asp:CustomValidator ClientValidationFunction="CompareDates" ID="cvTodate" runat="server"
ErrorMessage="To date cannot be greater than from date" ControlToValidate="txtToDate"></asp:CustomValidator>
</td>
</tr>
<tr>
<td colspan="2">
<asp:Button ID="btnSaver" runat="server" Text="Save" />
</td>
</tr>
</table>
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