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Editorial Team
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Asked: 2026-06-07T07:29:19+00:00

I have a telerik:RadDatePicker in which i am restricting users from selecting future dates

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I have a telerik:RadDatePicker in which i am restricting users from selecting future dates by setting MaxDate of it to today in code behind. This works perfectly fine. but when the user keys in a date which is greater than today it just displays an ! in the date picker as shown below:

enter image description here

Instead I want to show a error message to the user “Future dates are not allowed” How can i achieve this? Below is the existing code:

<telerik:RadDatePicker CssClass="cssDate" ID="fromDate" runat="server" 
 Skin="Vista">
 <DateInput ID="DateInput1" runat="server" LabelCssClass="datePick" Skin="Vista">
  </DateInput>
 <Calendar ShowRowHeaders="false" ID="Calendar1" runat="server" UseRowHeadersAsSelectors="False" UseColumnHeadersAsSelectors="False"
ViewSelectorText="x" Skin="Vista">
</Calendar>
<DatePopupButton CssClass="rcCalPopup"></DatePopupButton>
 </telerik:RadDatePicker>

And the code behind where i set the max date of this:

  fromDate.MaxDate = DateTime.Now;
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1 Answer

  1. Editorial Team

    After days of research and asking grandpa google, He provided me link to telerik official forums where they confirmed that this cannot be done.

    Link to what i want to say.

    The reply says “Actually we have modified the error handling logic a bit as our original implementation did not seem quite intuitive. If garbage input is entered or a date out of range is selected the control will internally set its value to null; the visible input field will not clear its contents but will display them with invalid style until a valid value is entered. However, you will still need to handle possible parsing errors in the client-side OnError event handler of the input component (you can find another example here) as if the input does not contain a valid date it will post empty value to the server and this functionality cannot be turned off.“

    Hope this piece of information will be helpful to others on SO :).

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