Connected Points in Visualforce Chart
Question
A data series to be rendered as connected points in a Visualforce chart.
At a minimum you must specify the fields in the data collection to use as X and Y values for each point, as well as the X and Y axes to scale against.
Note: This component must be enclosed within an <apex:chart> component.
You can have multiple <apex:barSeries> and <apex:lineSeries> components in a single chart.
Answers
Explanations
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A. B. C. D.C.
The correct answer for the given question is option C. "apex:lineSeries".
In Visualforce, the apex:chart component is used to create a chart. The apex:lineSeries component is used to render a series of connected points in a Visualforce line chart. This component must be enclosed within an apex:chart component.
To render the data series as connected points, you must specify the fields in the data collection to use as X and Y values for each point. You also need to specify the X and Y axes to scale against.
Here's an example of how to use the apex:lineSeries component to create a line chart:
php<apex:chart height="350" width="650" data="{!myData}"> <apex:axis type="Numeric" position="left" fields="yValue" title="Y Value" grid="true" minimum="0"/> <apex:axis type="Category" position="bottom" fields="xValue" title="X Value"/> <apex:lineSeries xField="xValue" yField="yValue" markerType="cross" markerSize="4" markerFill="#FF0000"/> </apex:chart> In the example above, the height and width attributes are used to set the dimensions of the chart. The data attribute specifies the data collection to use. The apex:axis components are used to specify the X and Y axes. The xField and yField attributes specify the fields in the data collection to use as X and Y values for each point. The markerType, markerSize, and markerFill attributes are used to customize the appearance of the markers on the chart.
Option A ("apex:pageblockSection") and Option D ("apex:inputSecret") are not related to creating a Visualforce chart. Option B ("apex:inputHidden") can be used to create a hidden input field in a Visualforce page, but it is not used to create a chart.
