C# Class Rock.Web.UI.Controls.GeoPicker

This control will create a Google map with drawring tools that allows the user to define a single point or a polygon which forms a geo-fence depending on the Rock.Web.UI.Controls.GeoPicker.ManagerDrawingMode.Point. To use on a page or usercontrol: ]]> To set an initial value: gpGeoPoint.SetValue( DbGeography.FromText("POINT(-122.335197 47.646711)") ); To access the value after it's been set use the SelectedValue property: DbGeography point = gpGeoPoint.SelectedValue; If you wish to set an appropriate, initial center point you can use the CenterPoint property.

Inheritance: System.Web.UI.WebControls.CompositeControl, IRockControl

Show file Open project: SparkDevNetwork/Rock Class Usage Examples

Private Properties

Property	Type	Description
ConvertPointFromWellKnownText	string
ConvertPointToWellKnownText	string
ConvertPolyFromWellKnownText	string

Public Methods

Method	Description
ConvertPolyToWellKnownText ( string latCommaLongPipe ) : string	Convert string from "lat1,long1\|lat2,long2\|..." to Well Known Text (WKT) http://en.wikipedia.org/wiki/Well-known_text format "POLYGON(( long1 lat1, long2 lat2, ...))". It is expected that the input is a single polygon (not a polygon with an inner polygon). It will also correct the orientation (clockwise-ness) of the points because DbGeography needs them to be in counter-clockwise order.
GeoPicker ( ) : System	Initializes a new instance of the GeoPicker class.
IsClockwisePolygon ( PointF polygon ) : bool	Attempt to determine if the polygon is clockwise or counter-clockwise. Thank you dominoc! http://dominoc925.blogspot.com/2012/03/c-code-to-determine-if-polygon-vertices.html
RenderBaseControl ( System.Web.UI.HtmlTextWriter writer ) : void	Renders the base control.
RenderControl ( System.Web.UI.HtmlTextWriter writer ) : void	Outputs server control content to a provided T:System.Web.UI.HtmlTextWriter object and stores tracing information about the control if tracing is enabled.
SetValue ( System.Data.Entity.Spatial.DbGeography dbGeography ) : void	Sets the value. Necessary to preload the geo fence or geo point.

Protected Methods

Method	Description
CreateChildControls ( ) : void	Called by the ASP.NET page framework to notify server controls that use composition-based implementation to create any child controls they contain in preparation for posting back or rendering.
OnInit ( EventArgs e ) : void	Raises the E:System.Web.UI.Control.Init event.
RegisterJavaScript ( ) : void	Registers the java script.
btnSelect_Click ( object sender, EventArgs e ) : void	Handles the Click event of the btnSelect control.

Private Methods

Method	Description
ConvertPointFromWellKnownText ( string wkt ) : string	Convert from WKT format: "POINT (long1 lat1)" to "lat1,long1"
ConvertPointToWellKnownText ( string latCommaLong ) : string	Converts single coordinate set (lat,long) into the Well Known Text (WKT) POINT format. http://en.wikipedia.org/wiki/Well-known_text
ConvertPolyFromWellKnownText ( string wkt ) : string	Convert from WKT format: "POLYGON ((long1 lat1, long2 lat2, ...))" to "lat1,long1\|lat2,long2\|..."

Method Details

ConvertPolyToWellKnownText() public static method

Convert string from "lat1,long1|lat2,long2|..." to Well Known Text (WKT) http://en.wikipedia.org/wiki/Well-known_text format "POLYGON(( long1 lat1, long2 lat2, ...))". It is expected that the input is a single polygon (not a polygon with an inner polygon). It will also correct the orientation (clockwise-ness) of the points because DbGeography needs them to be in counter-clockwise order.

public static ConvertPolyToWellKnownText ( string latCommaLongPipe ) : string
latCommaLongPipe	string	string of "lat1,long1\|lat2,long2\|..."
return	string

CreateChildControls() protected method

Called by the ASP.NET page framework to notify server controls that use composition-based implementation to create any child controls they contain in preparation for posting back or rendering.

protected CreateChildControls ( ) : void
return	void

GeoPicker() public method

Initializes a new instance of the GeoPicker class.

public GeoPicker ( ) : System
return	System

IsClockwisePolygon() public static method

Attempt to determine if the polygon is clockwise or counter-clockwise. Thank you dominoc! http://dominoc925.blogspot.com/2012/03/c-code-to-determine-if-polygon-vertices.html

public static IsClockwisePolygon ( PointF polygon ) : bool
polygon	System.Drawing.PointF
return	bool

OnInit() protected method

Raises the E:System.Web.UI.Control.Init event.

protected OnInit ( EventArgs e ) : void
e	System.EventArgs	An object that contains the event data.
return	void

RegisterJavaScript() protected method

Registers the java script.

protected RegisterJavaScript ( ) : void
return	void

RenderBaseControl() public method

Renders the base control.

public RenderBaseControl ( System.Web.UI.HtmlTextWriter writer ) : void
writer	System.Web.UI.HtmlTextWriter	The writer.
return	void

RenderControl() public method

Outputs server control content to a provided T:System.Web.UI.HtmlTextWriter object and stores tracing information about the control if tracing is enabled.

public RenderControl ( System.Web.UI.HtmlTextWriter writer ) : void
writer	System.Web.UI.HtmlTextWriter	The object that receives the control content.
return	void

SetValue() public method

Sets the value. Necessary to preload the geo fence or geo point.

public SetValue ( System.Data.Entity.Spatial.DbGeography dbGeography ) : void
dbGeography	System.Data.Entity.Spatial.DbGeography	The db geography.
return	void

btnSelect_Click() protected method

Handles the Click event of the btnSelect control.

protected btnSelect_Click ( object sender, EventArgs e ) : void
sender	object	The source of the event.
e	System.EventArgs	The instance containing the event data.
return	void