The One With

June 2011 - Posts

• Rich Text Editor - Adding a Barcode into a Document

  In my previous post Adding a chart into a Document, I showed you how you can create custom proprietary calculated field to render a live chart. Let’s use the same technique to render a barcode. I will reuse the existing barcode generators from our Reporting Suite. Field Code: BRCODE (BARCODE is a reserved field, Final name TBD). Switches: \t – Specifies the barcode type. Supported barcodes. \l – If this switch is set, the eye readable text will be drawn at the bottom of the barcode. \w – Specifies the barcode width \h – Specifies the barcode height \d – Barcode Data \p – Barcode specific option. For example for Code128, this switch determines the character set to be used. e.g. \p 128b \r – This switch is used by a number of barcode types to determine the density. e.g. \r 2.6 \c \e \o \k – Barcode specific options. (See note below) Example: {BRCODE \t PDF417 \w 300 \h 150 \m text \r 3 \c 1 \p 3 \e 3 \o \l \d "PDF 417"} Download the source code Notes: I should note that even though the techniques I am showing you here open up oh so many possibilities, don’t enable this for your users just yet. Give us some time to sort all the details outs . And if you are an early adopter, send me an email with your questions, comments and suggestions. Especially if you have an interesting use-case for this. Cheers Azret Posted Jun 16 2011, 02:28 PM by Azret Botash (DevExpress) with 2 comment(s) Filed under: RichEdit, XtraRichEdit, MailMerge

• Windows Live developer platform adds OAuth 2.0

  Today Windows Live team announced support for OAuth 2.0 Quote “Not only have we made Messenger Connect the most up-to-date implementation of OAuth 2.0, but we’ve also taken this opportunity to improve key aspects of the developer and end user experience when going through the user authorization process…” I blogged about our new OAuth library recently and showed you how to connect to Facebook. Here is another example, this time we’ll connect to the new Windows Live - v5.0. Download Code Cheers Azret Posted Jun 14 2011, 07:18 PM by Azret Botash (DevExpress) with 2 comment(s) Filed under: WPF, OAuth, Messenger

• Rich Text Editor - Adding a Chart into a Document

  Rachel already showed you what you can do (Master-Detail Mail Merge) with a generic calculated field like DOCVARIABLE. I want to take it a bit further and show you how to create a custom field. Would you like to embed a chart into your documents? Field Code: CHART Switches: \c – Specifies the chart type. Supported charts are bar, pie and line. If not specified defaults to pie. \l – This switch determines if the chart should display a legend. \w – Specifies the chart width \h – Specifies the chart height \d – Comma separated data points Example: {CHART \c pie \w 500 \h 300 \l \d "Asia|4140336501,Africa|994527534,Europe|738523843,North America|528720588,South America|385742554,Oceania|36102071,Antarctica|3687"} Download the source code Cheers Azret Posted Jun 14 2011, 04:40 PM by Azret Botash (DevExpress) with 4 comment(s) Filed under: XtraCharts, XtraRichEdit, v2011.1

• OAuth Library – The Basics of Implementing a Service Provider

  Last time I showed you how to connect to Facebook, Twitter and Google using the DevExpress OAuth Library. This time, let me show you an example of the most basic OAuth 1.0 service provider. Before you dig into the implementation however, I want to point you to a prerequisite article on http://hueniverse.com by Eran Hammer-Lahav. Eran does a very good job explaining the protocol flow. How to implement an OAuth Service Provider Live Demo Cheers Azret Posted Jun 10 2011, 05:45 PM by Azret Botash (DevExpress) with no comments Filed under: OAuth, v2011.1

• WPF Grid Control – Per-Pixel Scrolling, DataRowTemplateSelector and some fun

  I am pretty excited about the new Per-Pixel Scrolling option that’s coming out in v2011 vol 1. Emil explained it in his post here. The smooth per-pixel scrolling experience is exactly what I wanted for my little WPF Facebook Client. Check out this example where I enable the Per-Pixel Scrolling and also make use of the DataRowTemplateSelector to dynamically select a row template. Cheers Azret Posted Jun 06 2011, 11:40 AM by Azret Botash (DevExpress) with 2 comment(s) Filed under: WPF, DXGrid, OAuth, v2011.1

• OAuth Library – (available now in v2011, volume 1)

  In v2011 volume 1, the OAuth library that we’ve developed for internal use, is available to all our customers. The DevExpress OAuth library supports the consumer side for OAuth 1.0 and OAuth 2.0 Draft as well as the provider side for OAuth 1.0.       The following example How to login to Twitter, Google and Facebook using OAuth demonstrates how to login to some of the most popular services that support OAuth authentication. Cheers Azret Posted Jun 03 2011, 04:08 PM by Azret Botash (DevExpress) with 5 comment(s) Filed under: OAuth, Authentication, v2011.1