Chart.HitTest Method (Int32, Int32)

.NET Framework (current version)
 

Determines the chart element, if any, that is located at a point defined by the given X and Y coordinates.

Namespace:   System.Web.UI.DataVisualization.Charting
Assembly:  System.Web.DataVisualization (in System.Web.DataVisualization.dll)

public HitTestResult HitTest(
	int x,
	int y
)

Parameters

x
Type: System.Int32

The X-coordinate value of the point the user clicked.

y
Type: System.Int32

The Y-coordinate value of the point the user clicked.

Return Value

Type: System.Web.UI.DataVisualization.Charting.HitTestResult

A HitTestResult object, which provides information concerning the chart element, if any, that is at the specified location.

Call this method to determine the chart element, if any, which is located at a specified point.

System_CAPS_importantImportant

In order for this method to work correctly, the IsMapEnabled property must be set to false.

This method can be used with the Click server-side event when you implement drilldown. However, it is highly recommended that you use client-side image maps for drilldown because of ease of use.

The properties of the returned HitTestResult object can then be used to determine which chart element was clicked; the HitTestResult object also provides an instance of the actual object selected, if any.

.NET Framework
Available since 4.0
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