Public Overloads Sub Insert( _
   ByVal index As Integer, _
   ByVal toolTip As String, _
   ByVal href As String, _
   ByVal attr As String, _
   ByVal rect As RectangleF _
) 

Visual Basic (Usage)	Copy Code
Dim instance As MapAreasCollection Dim index As Integer Dim toolTip As String Dim href As String Dim attr As String Dim rect As RectangleF   instance.Insert(index, toolTip, href, attr, rect)

public void Insert( 
   int index,
   string toolTip,
   string href,
   string attr,
   RectangleF rect
)

Parameters

index

The index value where the item will be inserted (0-based).

Index to insert at.

toolTip

The tooltip of the map area, which corresponds to the html <AREA> tag's Title attribute. Multi-line tooltips can be used using a carriage return/line feed (e.g. vbCrLf for VB).

Tool tip.

href

The destination URL or anchor point of the map area. Corresponds to the html <AREA> tag's HREF attribute.

Jump URL.

attr

One or more map area attributes. The entire string expression is appended at the end of the <AREA> tag.

Other area attributes.

rect

A RectangleF structure that defines the shape of the map area's rectangle.

Rect coordinates

The following sample inserts a map area into the MapAreasCollection. It is the second MapArea object, and is a rectangle defined by a RectangleF structure.

Visual Basic	Copy Code
Dim myRectF As New System.Drawing.RectangleF() 'set position of rectangleF structure myRectF.X = 20 myRectF.Y = 20 myRectF.Width = 80 myRectF.Height = 80 'create the map area Chart1.MapAreas.Insert (1, "Tooltip1" & vbCrLf & "Tooltip2", "http://www.SomeDomain.com", "Target=_Blank", myRectF)

Inserts a custom  MapArea object into the collection at the specified location, using the parameters to set the map area properties.

Chart coordinates are used when setting the position of the rectangle. "0,0" represents the top-left corner of the chart image and "100,100" represents the bottom-right corner of the chart image. To find out more about the chart's coordinate system see the Chart Coordinate System topic.

IMPORTANT: To create an image map this way the RenderType property of the Chart object MUST be RenderType.ImageTag. It is possible to create an image map when using binary streaming, but another technique must be used. Refer to the Client-Side Mapping and Binary Streaming  topic for further details.

The attr parameter is used for map attributes such as "Target=_Blank", "OnClick="javascript:MyJavaScriptFunction()", etc.

To create a map area that has a custom shape use the definition that takes a GraphicsPath object.

Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family

Reference