Application of MapObjects2.2 in C # (Dynamic Load Map)
Keywords: mapobjects 2.2 C #
This article realizes the function of dynamically loaded maps, nonsense, and the function is implemented.
Loading process code:
Using system;
Using system.drawing;
Using system.collections;
Using system.componentmodel;
Using system.windows.forms;
Using system.data;
Namespace loadingmap
{
///
/// Form1 summary description.
///
Public Class Form1: System.Windows.Forms.form
{
Private AxmapObjects2.axmap axmap1;
///
/// The required designer variable.
///
Private system.componentmodel.Container Components = NULL;
Public Form1 ()
{
//
// Windows Form Designer Support
//
InitializationComponent ();
//
// Todo: Add any constructor code after INITIALIZECOMPONENT call
//
}
///
/// Clean all the resources being used.
///
Protected Override Void Dispose (Bool Disposing)
{
IF (Disposing)
{
IF (Components! = NULL)
{
Components.dispose ();
}
}
Base.dispose (Disposing);
}
#Region Windows Form Designer Generated Code
///
/// Designer supports the required method - do not use the code editor to modify
/// This method is content.
///
Private vidinitiRizeComponent ()
{
System.Resources.ResourceManager Resources = New System.Resources.ResourceManager (TypeOf (Form1));
THIS.AXMAP1 = New AxMapObjects2.axmap ();
(System.comPonentModel.isupportInitialize) (this.axmap1)). Begininit ();
THIS.SUSPENDLAYOUT ();
//
// Axmap1
//
This.axmap1.dock = system.windows.forms.dockstyle.Fill;
this.axmap1.location = new system.drawing.point (0, 0);
THIS.AXMAP1.NAME = "AXMAP1";
THIS.AXMAP1.OCXState = ((System.Windows.Forms.Axhost.State))))));
THIS.AXMAP1.SIZE = New System.drawing.size (600, 357);
THIS.AXMAP1.TABINDEX = 0;
//
// Form1
//
This.autoscalebasesize = new system.drawing.size (6, 14); this.clientsize = new system.drawing.size (600, 357);
This.Controls.add (this.axmap1);
THIS.NAME = "Form1";
THIS.TEXT = "Form1";
This.Load = New System.EventHandler (this.form1_load);
(System.comPonentModel.isupportInitialize) (this.axmap1)). Endinit ();
This.ResumeLayout (false);
}
#ndregion
///
/// The main entry point for the application.
///
[Stathread]
Static void main ()
{
Application.run (New Form1 ());
}
Private Void Form1_Load (Object Sender, System.EventArgs E)
{
/ / Define data connection
MapObjects2.dataconnection DC = new mapObjects2.dataconnectionClass ();
// Define the layer
MapObjects2.maplayer layer = new mapObjects2.maplayerclass ();
// My map file exists in the "g: // //" directory, please replace your map directory.
Dc.Database = "g: // loadmap // bin // debug //";
// Exit when the connection is unsuccessful
IF (! dc.connect ())
{
Messagebox.show ("Did not find a layer data file under the specified folder");
Application.exit ();
}
Else // The connection is successful to load the map
{
/ *
* Map loading order is generally facing, line, point, first loaded on the map of the map
* /
// Load layer State,
Layer.GeodataSet = DC.FindGeodataSet ("States");
AXMAP1.LAYERS.ADD (Layer);
/ / Load layer Rivers,
Layer.GeodataSet = DC.FindGeodataSet ("Rivers");
AXMAP1.LAYERS.ADD (Layer);
/ / Load other layers ...
}
/ / Must be refreshed before you can display
AXMAP1.REFRESH ();
}
}
}
