Latest Posts

How to Change the Android Theme for Xamarin Apps

This blog post shows how to change the Android app theme for Xamarin.Forms, Xamarin.Android.

July 13, 2017

Tips for Xuni Deployment and Debugging issues in Xamarin.Forms

In this article, we'll go through some common issues that can come up in Xuni deployment, and provide some solutions for these common cases.

February 21, 2017

How to Add Zones to your FlexChart

The 2016 v3 update gives you the ability to add zones to your FlexCharts. These colored bands make it easier to identify which category a point falls into, and gives a clear means for labeling the category. In this article we’ll walk though how the zones feature works. In this article, we'll take a look at how zones work in a small sample.

January 3, 2017

Getting Started with Xuni and Visual Studio for Mac

This article walks you through how to use Xuni with Visual Studio for Mac by adding a Radial Gauge to a simple Xamarin.Forms application.

December 12, 2016

How to use a hardware keyboard with FlexGrid

Xuni 2016 v3 added support for using hardware keyboards with FlexGrid. In this article we take a deeper look at how this feature works.

November 29, 2016

Visual Studio for Mac

Today at Microsoft's Connect event, Microsoft finally announced the long unthinkable version of Visual Studio for Mac. While this may seem like a major change on the surface, a closer look quickly reveals that Visual Studio for Mac is an updated and rebranded version of Xamarin Studio. There are new features included in this release though, and in a broader sense it signals a more open Microsoft.

November 16, 2016

More Adaptive Techniques with Content Views and Master Detail

In my previous blog post I covered the basic tips for building adaptive Xamarin.Forms apps for tablets and phones. In this post I'm going to complete the discussion with two very adaptive-friendly components that make app development fun - ContentView and MasterDetailPage.

November 11, 2016

Using FlexGrid's CellLongPressed Event to capture a Long Press Gesture

Xuni 2016 v2.5 adds a new CellLongPressed event to the FlexGrid control. This article takes a look at usage and potential application.

September 27, 2016

How to use the GrapeCity License Manager Add in

This blog explains how you can use Xuni 2016 v2.5 with the GrapeCity License Manager Visual Studio add in to license your Xamarin solutions.

September 13, 2016

How to Create a Custom DropDown Control in Xamarin.Forms

In the Xuni 2016 v2 release we included several new input controls such as AutoComplete, MaskedEntry, ComboBox, and DropDown. In this blog post, I'll show you some of the basic features of DropDown and how to create a custom DatePicker control.

August 23, 2016

A deeper look at the Medal Tracker architecture

This article examines the Medal Tracker architecture and dissects how it uses web services, caching, and Xuni to make a compelling experience.

August 18, 2016

2016 Rio Summer Games Medal Tracker

The 2016 Rio Olympics are now well underway, and GrapeCity the occasion is commemorating by providing a Medal Tracker web app using our sister product Wijmo. For Xuni, we've developed a Xamarin.Forms sample that has many of the same features.

August 11, 2016

How to Customize the Calendar Header

In this topic we will explore the different ways that we can customize the header of Xuni Calendar for Xamarin.Forms.

July 25, 2016

Xuni and Xamarin 101 Webinar

The Xuni and Xamarin 101 webinar recording walks you through the first steps of using Xamarin.Forms and Xamarin.Android with Xuni Calendar and FlexGrid.

June 30, 2016

A Deep Look at the New Xuni Calendar Control

The Xuni Calendar control provides multiple date selection with month and year views. It includes built-in navigation, animation and globalization so you can get up and running very quickly. You can customize the appearance and the selection behavior to fit your requirements.

March 25, 2016

Creating a Xamarin.Forms Custom Renderer for a FlexGrid Cell Template

With the Xuni FlexGrid control you can create custom cells by defining a cell template. But there is a performance limitation with custom cells that contain layout controls. This blog post shows a full workaround implementation using a Xamarin.Forms custom renderer.

February 24, 2016

How to Create a Simple Xamarin.Forms Weather Application Using Xuni

Not too long ago, we introduced the native versions of Xuni with a pair of webinars that demonstrated using Xuni to create a simple weather application. Though we've covered creating this weather app natively on both iOS and Android, we haven't covered building the app (or using a web service) with Xamarin.Forms. In this article we'll fill in that blank by building a simple weather application example.

February 4, 2016

Let's Make Pie with Xamarin.Forms and Xuni

In this video tutorial I will show you how to improve the visualization of your data by turning a plain list of data into an interactive pie chart! I will start with a plain Xamarin.Forms app, some pie data and a Xuni NuGet library and through several easy steps produce a pie chart complete with pop-out slices, tooltips and even baked-in animation.

January 23, 2016

Customizing the FlexChart Axis Labels

There are several common ways you may want to customize the labels on both the X and Y axes of FlexChart. For instance, you may want the numeric values to be formatted like “$16,000” or “$16K”. You may also want to change the layout or color of the text, or replace it completely with an image. In this post I will rundown the full range of axis label customization from simple formatting to a complete replacement.

December 16, 2015

How to Proportionally Size Columns with FlexGrid (Star Sizing)

In this post I will discuss a useful feature we’ve added to FlexGrid known as star-sizing columns. Star-sizing is a proportional column sizing technique that enables FlexGrid to be used in more adaptive scenarios. If you’re going to use FlexGrid you should know how to take advantage of its star-sizing capabilities.

November 18, 2015

Adding Interactive Line Markers to FlexChart for Xamarin.Forms

In this post I will introduce the line marker feature specifically for Xamarin.Forms users. The line marker feature helps the user discover precise data values for a given position on the chart by dragging horizontal and/or vertical lines over the plot with an attached label.

November 16, 2015

Adding Tooltips, Labels and Markers to a Xamarin.Forms Chart

In this post I will show how you can quickly and effortlessly add tooltips and data labels to Xuni FlexChart. I will also give a preview of the new upcoming interactive line marker feature that will be part of the 2015 v3 release.

November 6, 2015

Incremental, On-Demand Loading with Xamarin.Forms ListView

On-demand loading is a common technique in mobile apps where data is loaded in chunks as the user scrolls down a list in real time. If you’re developing a mobile app using Xamarin.Forms then you will find that on-demand loading is not supported for free – you have to implement it yourself. In this blog post I will show how you can use the Xuni CollectionView to provide on-demand loading for the Xamarin.Forms ListView control.

October 19, 2015

Create a Pie Chart with Interactive & Spinning Selection

Xuni FlexPie has built-in selection capabilities where the selected slice shows a thicker border and can explode out from the pie. Using tooltips rather than data labels help keep your visualization clean of clutter by only showing one slice’s data at a time. In this post I will cover the built-in selection feature of FlexPie and how it can be used to create a cool, interactive spinning pie where the label remains static to one edge of the app.

October 15, 2015

Update Animation Deep Dive

September 25, 2015

Updating Your Xamarin.Forms Projects to Xuni 2015 v2

Update your existing projects to use the latest NuGet packages with Xuni for Xamarin by identifying the platform in the name. Here's a walk-through of updating for Xuni for Xamarin projects.

August 21, 2015

How to Save an Image to a Device using ComponentOne and Xamarin.Forms

Use ComponentOne's new GetImage() method to capture an image as a byte array of a control in iOS, Android, and Windows Phone in Xamarin.Forms.

August 21, 2015

Xuni 2015 v2 Release - See What's New

The 2015 v2 release introduces two new mobile platforms: Xuni for iOS and Xuni for Android. Plus, we've added new controls and features to Xamarin.Forms. The specific platforms and features added are described in this post.

August 19, 2015