User Interface

Every chart that has been automatically or manually defined will display a title. This title will be composed using the row, column, and value fields and their properties that have been specified for the chart. For example, suppose we create a curved line chart on Orders page of the Northwind sample app that uses OrderDate for rows, EmployeeID for columns, and the sum of Freight for values.

The data for the chart can be seen below.

The title states that the chart shows top three “Employee Last Name”. The value is the sum of “Freight” and the rows are grouped by “Order Date”. While the title may reveal all the necessary information, the title can be better. Let’s manually specify the title by adding the following tag. Note that the tags do not need to be on any particular data field, as long as the correct pivot ID is specified. Open the Project Designer. In the Project Explorer, switch to the Controllers tab and double-click on Orders / Views / grid1 / EmployeeID data field node.

Add the highlighted tag:

Save the data field and regenerate the app. When the page comes up in your browser, navigate to the Orders page. Note that the new title has been applied.

The new title will also be displayed above the chart data.

By default, the axes do not have a title applied. One can use the “haxistitle” or “vaxistitle” properties to manually specify a title for the horizontal or vertical axis, respectively. Let’s specify the following axis titles:

The new chart will display the specified labels on each axis.

The chart data will not be changed.

The “map” chart type displays a map using the Google Maps API. It accepts values in the form of addresses and renders them as pins on the map. This chart type can be useful for displaying values associated with regions or locations. However, it may be more beneficial to use Maps presentation style to allow for data interaction or Geo Chart Type instead.

The map below shows the location of customers by country.

The data for the map is displayed below.

Clicking on a data point will reveal the value.

The type of map can be specified with the “maptype” property. The default value is “hybrid”. The other options are “normal”, “terrain”, or “satellite”. The example below shows the “terrain” map type.

The switcher for map type is disabled by default. The switcher can be enabled by adding the “usemaptypecontrol” keyword. It will appear in the top-right corner.

By default, the user cannot use the scroll wheel to zoom. This functionality can be enabled by adding the “enablescrollwheel” keyword.