====== Source Code DesktopEditionSample ManagingCache CS 100508.zip ======


====Program.cs====

<code csharp> using System;  
 using System.Collections.Generic;  
 using System.Linq;  
 using System.Windows.Forms;  
  
 namespace ManagingCache  
 {  
     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());  
         }  
     }  
 }  
 </code>



====TestForm.cs====

<code csharp> using System;  
 using System.Windows.Forms;  
 using System.Collections.ObjectModel;  
 using ThinkGeo.MapSuite.Core;  
 using ThinkGeo.MapSuite.DesktopEdition;  
  
  
 namespace  ManagingCache  
 {  
     public partial class TestForm : Form  
     {  
         //Will generate the tiles for cache in the "TestDataCache" directory in "C:\temp".  
         FileBitmapTileCache fileBitmapTileCache = new FileBitmapTileCache(@"C:\temp", "TestDataCache");  
  
         public TestForm()  
         {  
             InitializeComponent();  
         }  
  
         private void TestForm_Load(object sender, EventArgs e)  
         {  
             winformsMap1.MapUnit = GeographyUnit.DecimalDegree;  
             winformsMap1.CurrentExtent = new RectangleShape(-125, 47, -67, 25);  
             winformsMap1.BackgroundOverlay.BackgroundBrush = new GeoSolidBrush(GeoColor.FromArgb(255, 198, 255, 255));  
  
             ShapeFileFeatureLayer worldLayer = new ShapeFileFeatureLayer(@"..\..\Data\Countries02.shp");  
             worldLayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = AreaStyles.Country1;  
             worldLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;  
  
             ShapeFileFeatureLayer capitalLayer = new ShapeFileFeatureLayer(@"..\..\Data\WorldCapitals.shp");  
             // We can customize our own Style. Here we passed in a color and a size.  
             capitalLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle = PointStyles.CreateSimpleCircleStyle(GeoColor.StandardColors.White, 7, GeoColor.StandardColors.Brown);  
             // The Style we set here is available from ZoomLevel01 to ZoomLevel05. That means if we zoom in a bit more, the appearance we set here will not be visible anymore.  
             capitalLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level05;  
  
             capitalLayer.ZoomLevelSet.ZoomLevel06.DefaultPointStyle = PointStyles.Capital3;  
             // The Style we set here is available from ZoomLevel06 to ZoomLevel20. That means if we zoom out a bit more, the appearance we set here will not be visible any more.  
             capitalLayer.ZoomLevelSet.ZoomLevel06.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;  
  
             ShapeFileFeatureLayer capitalLabelLayer = new ShapeFileFeatureLayer(@"..\..\Data\WorldCapitals.shp");  
             // We can customize our own TextStyle. Here we passed in the font, the size, the style and the color.  
             capitalLabelLayer.ZoomLevelSet.ZoomLevel01.DefaultTextStyle = TextStyles.CreateSimpleTextStyle("CITY_NAME", "Arial", 8, DrawingFontStyles.Italic, GeoColor.StandardColors.Black, 3, 3);  
             // The TextStyle we set here is available from ZoomLevel01 to ZoomLevel05.  
             capitalLabelLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level05;  
  
             capitalLabelLayer.ZoomLevelSet.ZoomLevel06.DefaultTextStyle = TextStyles.Capital3("CITY_NAME");  
             // The TextStyle we set here is available from ZoomLevel06 to ZoomLevel20.  
             capitalLabelLayer.ZoomLevelSet.ZoomLevel06.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;  
             // As the map is drawn by tiles, it needs to draw on the margin to make sure the text is complete after the tiles are joined together.  
             // Change the number to another one (for example 0) and you can see the difference expecially when panning.  
             capitalLabelLayer.DrawingMarginPercentage = 50;  
  
             LayerOverlay layerOverlay = new LayerOverlay();  
             layerOverlay.Layers.Add(worldLayer);  
             layerOverlay.Layers.Add(capitalLayer);  
             layerOverlay.Layers.Add(capitalLabelLayer);  
  
             //Sets the zoom snapping mode to snap up.  
             winformsMap1.ZoomLevelSnapping = ZoomLevelSnappingMode.SnapUp;  
             //Sets the tilecache when in Snap Up mode for zoom snapping.  
             layerOverlay.TileCache = fileBitmapTileCache;  
  
             winformsMap1.Overlays.Add(layerOverlay);  
  
             winformsMap1.Refresh();  
         }  
  
         private void radioButtonSnapUp_CheckedChanged(object sender, EventArgs e)  
         {  
             if (radioButtonSnapUp.Checked == true)  
             {  
                 winformsMap1.ZoomLevelSnapping = ZoomLevelSnappingMode.SnapUp;  
                 LayerOverlay layerOverlay = (LayerOverlay)winformsMap1.Overlays[0];  
                 //Sets the TileCache when in Snap Up mode for zoom snapping.  
                 layerOverlay.TileCache = fileBitmapTileCache;  
                 winformsMap1.Refresh();  
             }  
         }  
  
         private void radioButtonNone_CheckedChanged(object sender, EventArgs e)  
         {  
             if (radioButtonNone.Checked == true)  
             {  
                 winformsMap1.ZoomLevelSnapping = ZoomLevelSnappingMode.None;  
                 LayerOverlay layerOverlay = (LayerOverlay)winformsMap1.Overlays[0];  
                 //Sets thge TileCache to null when zoom snapping is none to avoid generating almost never ending cache imaging  
                 //for all the intermediate zoom levels.  
                 layerOverlay.TileCache = null;  
                 winformsMap1.Refresh();  
             }  
         }  
  
  
         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();  
         }  
     }  
 }  
 </code>