using System;  
 using System.Collections.Generic;  
 using System.Linq;  
 using System.Windows.Forms;  
 
 namespace DraggingIconAdvanced  
 {  
     static class Program  
     {  
         /// <summary>  
         /// The main entry point for the application.  
         /// </summary>  
         [STAThread]  
         static void Main()  
         {  
             Application.EnableVisualStyles();  
             Application.SetCompatibleTextRenderingDefault(false);  
             Application.Run(new TestForm());  
         }  
     }  
 }  
 

using System;  
 using System.Windows.Forms;  
 using System.Collections.ObjectModel;  
 using System.Drawing;  
 using ThinkGeo.MapSuite.Core;  
 using ThinkGeo.MapSuite.DesktopEdition;  
 
 
 namespace  DraggingIconAdvanced  
 {  
     public partial class TestForm : Form  
     {  
         public TestForm()  
         {  
             InitializeComponent();  
         }  
 
         private void TestForm_Load(object sender, EventArgs e)  
         {  
             winformsMap1.MapUnit = GeographyUnit.DecimalDegree;  
             winformsMap1.CurrentExtent = new RectangleShape(-95.3094,38.9749,-95.2528,38.9406);  
             winformsMap1.BackgroundOverlay.BackgroundBrush = new GeoSolidBrush(GeoColor.FromArgb(255, 198, 255, 255));  
 
             //Displays the World Map Kit as a background.  
             ThinkGeo.MapSuite.DesktopEdition.WorldMapKitWmsDesktopOverlay worldMapKitDesktopOverlay = new ThinkGeo.MapSuite.DesktopEdition.WorldMapKitWmsDesktopOverlay();  
             winformsMap1.Overlays.Add(worldMapKitDesktopOverlay);  
 
             //EditInteractiveOverlay used because it already has the logic for dragging.  
             EditInteractiveOverlay editInteractiveOverlay = new EditInteractiveOverlay();  
 
             //Sets the property IsActive for DragControlPointsLayer to false so that the control point (as four arrows) is not visible.  
             editInteractiveOverlay.DragControlPointsLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle.IsActive = false;  
             editInteractiveOverlay.DragControlPointsLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;  
 
             //Sets the property IsActive for all the Styles of EditShapesLayer because we are using a ValueStyle instead.  
             editInteractiveOverlay.EditShapesLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle.IsActive = false;  
             editInteractiveOverlay.EditShapesLayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle.IsActive = false;  
             editInteractiveOverlay.EditShapesLayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle.IsActive = false;  
 
             //ValueStyle used for displaying the feature according to the value of the column "Type" for displaying with a flag or unknown icon.  
             ValueStyle valueStyle = new ValueStyle();  
             valueStyle.ColumnName = "Type";  
 
             PointStyle carPointStyle = new PointStyle(new GeoImage(@"..\..\Data\locale.png"));  
             carPointStyle.PointType = PointType.Bitmap;  
             PointStyle busPointStyle = new PointStyle(new GeoImage(@"..\..\Data\unknown.png"));  
             busPointStyle.PointType = PointType.Bitmap;  
 
             valueStyle.ValueItems.Add(new ValueItem("Flag", carPointStyle));  
             valueStyle.ValueItems.Add(new ValueItem("Unknown", busPointStyle));  
 
             editInteractiveOverlay.EditShapesLayer.ZoomLevelSet.ZoomLevel01.CustomStyles.Add(valueStyle);  
             editInteractiveOverlay.EditShapesLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;  
 
             editInteractiveOverlay.EditShapesLayer.Open();  
             editInteractiveOverlay.EditShapesLayer.Columns.Add(new FeatureSourceColumn("Type"));  
             editInteractiveOverlay.EditShapesLayer.Close();  
 
             Feature carFeature = new Feature(new PointShape(-95.2809,38.9544));  
             carFeature.ColumnValues["Type"] = "Flag";  
 
             Feature busFeature = new Feature(new PointShape(-95.3019,38.9578));  
             busFeature.ColumnValues["Type"] = "Unknown";  
 
             editInteractiveOverlay.EditShapesLayer.InternalFeatures.Add("Flag", carFeature);  
             editInteractiveOverlay.EditShapesLayer.InternalFeatures.Add("Unknown", busFeature);  
 
             //Sets the properties of EditInteractiveOverlay to have the appropriate behavior.  
             //Make sure CanDrag is set to true.  
             editInteractiveOverlay.CanAddVertex = false;  
             editInteractiveOverlay.CanDrag = true;  
             editInteractiveOverlay.CanRemoveVertex = false;  
             editInteractiveOverlay.CanResize = false;  
             editInteractiveOverlay.CanRotate = false;  
             editInteractiveOverlay.CalculateAllControlPoints();  
 
             winformsMap1.EditOverlay = editInteractiveOverlay;  
 
             winformsMap1.Refresh();  
 
             //We disable the double click modes in order to not have second effect behavior  
             //of the map when adding or removing an icon by double clicking  
             winformsMap1.ExtentOverlay.DoubleLeftClickMode = MapDoubleLeftClickMode.Disabled;  
             winformsMap1.ExtentOverlay.DoubleRightClickMode = MapDoubleRightClickMode.Disabled;  
         }  
 
         //In the MouseDoubleClick event, we allow adding a new draggable icon by left double clicking on the map and  
         //removing an icon by right double clicking.  
         private void winformsMap1_MouseDoubleClick(object sender, MouseEventArgs e)  
         {  
             winformsMap1.EditOverlay.EditShapesLayer.Open();  
             PointShape clickedPointShape = ExtentHelper.ToWorldCoordinate(winformsMap1.CurrentExtent, e.X, e.Y, winformsMap1.Width, winformsMap1.Height);  
 
             //For removing the icon clicked on.  
             if (e.Button == MouseButtons.Right)  
             {  
                 Collection<Feature> clickedFeatures = winformsMap1.EditOverlay.EditShapesLayer.QueryTools.GetFeaturesNearestTo(clickedPointShape, GeographyUnit.DecimalDegree, 1,  
                                                                       ReturningColumnsType.AllColumns);  
                 winformsMap1.EditOverlay.EditShapesLayer.Close();  
 
                 if (clickedFeatures.Count > 0)  
                 {  
                     //Gets the dimension of the icon and checks if the clicked point is inside it.  
                     ValueStyle valueStyle = (ValueStyle)winformsMap1.EditOverlay.EditShapesLayer.ZoomLevelSet.ZoomLevel01.CustomStyles[0];  
                     //we loop thru the different ValueItem to get the appropriate icon according to the "Type".  
                     GeoImage geoImage = null;  
                     string text = clickedFeatures[0].ColumnValues["Type"].Trim();  
                     foreach (ValueItem valueItem in valueStyle.ValueItems)  
                     {  
                         if (text == valueItem.Value)  
                         {  
                             geoImage = (GeoImage)valueStyle.ValueItems[0].DefaultPointStyle.Image;  
                             break;  
                         }  
                     }  
                     //We check to see if we clicked inside the icon itself.  
                     ScreenPointF screenPointF = ExtentHelper.ToScreenCoordinate(winformsMap1.CurrentExtent, clickedFeatures[0], winformsMap1.Width, winformsMap1.Height);  
                     RectangleF rectangleF = new RectangleF(screenPointF.X - (geoImage.GetWidth() / 2), screenPointF.Y - (geoImage.GetHeight() / 2),  
                                                            geoImage.GetWidth(), geoImage.GetHeight());  
                     bool IsInside = rectangleF.Contains(new PointF(e.X, e.Y));  
 
                     //If inside, removes the feature from the EditShapesLayer of the EditOverlay.  
                     if (IsInside == true)  
                     {  
                         winformsMap1.EditOverlay.EditShapesLayer.InternalFeatures.Remove(clickedFeatures[0]);  
                         winformsMap1.Refresh(winformsMap1.EditOverlay);  
                     }  
                 }  
             }  
             //Adding a new icon.  
             else if (e.Button == MouseButtons.Left)  
             {  
                 Feature carFeature = new Feature(clickedPointShape);  
                 carFeature.ColumnValues["Type"] = "Unknown";  
                 //We use DateTime.Now.Ticks to be sure to use a unique key each time we add a new feature.  
                 winformsMap1.EditOverlay.EditShapesLayer.InternalFeatures.Add(DateTime.Now.Ticks.ToString(), carFeature);  
                 //We call CalculateAllControlPoints to update the control points with the new feature to be able to drag the newly added feature.  
                 winformsMap1.EditOverlay.CalculateAllControlPoints();  
                 winformsMap1.Refresh(winformsMap1.EditOverlay);  
             }  
 
         }  
 
 
         private void winformsMap1_MouseMove(object sender, MouseEventArgs e)  
         {  
             //Displays the X and Y in screen coordinates.  
             statusStrip1.Items["toolStripStatusLabelScreen"].Text = "X:" + e.X + " Y:" + e.Y;  
 
             //Gets the PointShape in world coordinates from screen coordinates.  
             PointShape pointShape = ExtentHelper.ToWorldCoordinate(winformsMap1.CurrentExtent, new ScreenPointF(e.X, e.Y), winformsMap1.Width, winformsMap1.Height);  
 
             //Displays world coordinates.  
             statusStrip1.Items["toolStripStatusLabelWorld"].Text = "(world) X:" + Math.Round(pointShape.X, 4) + " Y:" + Math.Round(pointShape.Y, 4);  
         }  
 
         private void btnClose_Click(object sender, EventArgs e)  
         {  
             this.Close();  
         }  
     }  
 }