Utrecht Meetup: November 27th – The Colour Kitchen Oudegracht

imageOur series of meetups will kick off in Utrecht, The Netherlands. John and I will be looking forward to meet you in the Colour Kitchen Oudegracht in the city center of Utrecht.

I will be telling you all about our v17.2 release, and we would like to get your feedback and ideas before we start planning our next release. We will make sure that you’ll get refreshed with some beer or wine and some snacks.

If you want to join this meetup, please register your seat by clicking here, and show up.

Also let me know if this location is too far for you. I’ll look into it and see if we can organize another one on a different location.

I hope to meet you in The Colour Kitchen Oudegracht!

DevExtreme Editor Improvements (v17.2)

Besides the improvements and new features on complex controls like the dxScheduler, dxDataGrid, dxTreeList and dxPivotGrid, we also managed to add some useful features to the single-field Editors.



The TagBox control, in general, is a rather new control found in many applications today. It allows you to select or mark several entities in a drop down list when editing. If you're not editing the control, it displays a number of blocks containing the selected items (tags).

In v17.2 we've added the possibility to use overflow mode or MultiTag.
This means that if the total width of selected tag blocks is greater than the total control width, the overflowing blocks will be 'collapsed' into one block containing the count of the collapsed tags. You can optionally specify a tag count threshold as well as appearance customization.



In v17.1 we introduced the dxDropDownBox as a new widget for DevExtreme.
In v17.2 we've added some customization features on this control like: templates, image cells, format text and specify additional event-handlers on cells in the dropdown.



One of the most requested features on the dxDateBox is to display the time in 12-hour as well as 24-hour format. Because of that, there is now the possibility to explicitly specify the time format.
(In previous and current versions, the format depends on the stored value)


dxDateBox and dxCalendar

In v17.2 you can apply selectable date ranges on the dxDateBox and the dxCalendar. This means that dates outside the valid ranges will be crossed out and unselectable. You can use this feature by applying a list of restricted dates or you can pass a function which determines whether a date is valid or not.


Want more?

Because we value your feedback, there will be a number of long-awaited improvements on other editors as well.
What about:

  • dxNumberBox with formatting
  • dxScheduler appointment overlapping modes and time indication
  • FilterBuilder Widget (new)

More information on these topics will be posted in subsequent blogposts.

    Angular, ASP.NET MVC/ Core & More!

    All of these new features will be available on all the frameworks we support like Angular, jQuery, Knockout, ASP.NET MVC and .NET Core

    Try it now?

    So have we whet your appetite and you want to give it a test-drive?

    These new features are included in the v17.2 pre-release that is available via npm right now. Please note that this pre-release may contain some bugs and is not intended to be used in production: 

    npm install devextreme@17.2.1-pre-17291

    Learn more about DevExtreme's pre-releases in this blog post.

    Like it?

    Let me know by replying to this post if you like the features outlined in this post.

    20th Aniversary of BASTA! in Mainz, Germany

    This week, John and I put up the booth at the 20th anniversary conference of BASTA! in Mainz, Germany.


    Oliver has a fully booked workshop, and both of us will speak as well.

    We will do our daily raffles where you could win a Bluetooth speaker, a drone or even a platform subscription of choice.

    If you’re at BASTA!, come by and get your raffle ticket and tell us what you’re building with DevExpress!

    This week DevExpress is in Stockholm, Sweden

    From Monday, September 18th and Tuesday, September 19th, DevIntersection Europe is happening in Stockholm, Sweden. This time it is all about the .NET Core v2 launch.


    DevExpress is proud to be partner and John and I are available on location to hand out goodies and give some nice demo’s and answer questions.

    The speaker line-up as really good and I’m proud to present a session myself.

    If you’re at DevIntersection Europe, come by and say ‘hi’!

    Webinar: Bootstrapping your Web App with DevExpress

    This week I presented the webinar about our DevExpress Bootstrap Controls. You can rewatch it on our YouTube channel.


    I took an existing third party Bootstrap design from startbootstrap.com and showed how easy it is to incoprorate the DevExpress Bootstrap Controls in the design.

    If you want to use this approach in your own application, make sure to take a Bootstrap v3 theme!

    The DevExpress controls will render Bootstrap v3 compliant HTML since Bootstrap v4 is still in Beta.

    If you want to play around with the app I created, feel free to clone or fork the project from GitHub at: https://github.com/donwibier/DXBootstrap

    Did you  create a Bootstrap based Web App with the DevExpress Bootstrap controls, let me know by replying on this post or by sending me an e-mail.

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