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Eric P
1070
Set minimum date for XamDateTimeInput control
posted

I am using the XamDateTimeInput Control and I need set a minimum date that can be picked or entered. I have the following XAML so far.

<ig:XamDateTimeInput InvalidValueBehavior=”RevertValue” ....>
    <ig:XamDateTimeInput.ValueConstraint>
        <ig:ValueConstraint MinInclusive=”{Binding MinValue, Source={StaticResource MyViewModel}}” />
    </ig:XamDateTimeInput.ValueConstraint>
<ig:XamDateTimeInput/>

So this does limit the dates that the user can click on in the popup-calendar control. If the MinValue is a DateTime of 05-18-2012 then no dates are pickable before the 18th. This works well. But now if I click inside the XamDateTimeInput control, let’s say the day part; I can use the arrow keys to get a date before the 18th, let’s say the 17th. If the control does not have focus that it reverts back to 05-18-2012 but if I click back into the control it goes back to the 17th.

I would really love it if when clicking the arrow keys nothing would change if the date is already at the MinValue. Do not show dates before the MinValue.

Also, a minor issue is that I had to set the Source of the MinInclusive Binding to my ViewModel. I would expect it to inherit the Source from the DataContext of its parent like most other WPF controls.

Thanks,
   -eric

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  • 138253
    Offline posted

    Hello Eric,

     

    Thank you for your post. I have been looking into it and I created a sample project for you with the functionality you want. Basically I handled the XamDateTimeInput’s PreviewKeyDown event and revert the value if the new one is smaller than the minimum. If this doesn't satisfies you, you can suggest new product idea (ValueChanging event) for future versions (or vote for existing ones) at http://ideas.infragistics.com.

    There are many benefits to submitting an product idea:

    -          Direct communication with our product management team regarding your product idea.

    -          Notifications whenever new information regarding your idea becomes available.

    -          Ability to vote on your favorite product ideas to let us know which ones are the most important to you.  You will have ten votes for this and can change which ideas you are voting for at any time.

    -          Allow you to shape the future of our products by requesting new controls and products altogether.

    -          You and other developers can discuss existing product ideas with members of our Product Management team.

    Steps to create your idea:               

    1. Log into the Infragistics Product Idea site at http://ideas.infragistics.com (creating a new login if needed).
    2. Navigate to the product / platform channel of your choice (e.g. WPF, Windows Forms, ASP.NET, HTML5 / Ignite UI, iOS / NucliOS, etc.)
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    The Product Idea site puts you in the driver’s seat and allows you to track the progress of your ideas at any time, see how many votes it got, read comments from other developers in the community, and see if someone from the product team has additional questions for you.

    Thank you for contacting Infragistics.

    XamDateTimeInputValueConstraint.zip
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