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2015-06-10 11:23:05 访问(1663) 赞(0) 踩(0)

// This method displays an Open File dialog using the Load Map Wizard
		private void DisplayOpenFileDialog() 
		{
			// the four commented lines below can replace the rest of the code in this
			//  subroutine.  Other sample apps all use the LoadMapWizard in this way.
			//  An exception is made here to show how the same task can be accomplished
			//  with lower-level code -- which can then be customized if necessary.
			//
			//     LoadMapWizard loadMapWizard = new LoadMapWizard();
			//     loadMapWizard.ShowDbms = true;
			//     loadMapWizard.Run(this, mapControl1.Map);
			//     UpdateAllControls();

			System.Windows.Forms.OpenFileDialog openFileDialog1
                =
                new System.Windows.Forms.OpenFileDialog();
			openFileDialog1.Multiselect = true;
			openFileDialog1.CheckFileExists = true;
			openFileDialog1.DefaultExt = "TAB";
			openFileDialog1.Filter = 
				"MapInfo Tables (*.tab)|*.tab|" +
				"MapInfo Geoset (*.gst)|*.gst|" +
				"MapInfo WorkSpace (*.mws)|*.mws";
			string	strCantOpenList = null;          
			if(openFileDialog1.ShowDialog(this) == System.Windows.Forms.DialogResult.OK) 
				foreach(string filename in openFileDialog1.FileNames)	
					try 
					{
						if (filename.ToLower().EndsWith(MapLoader.FileExtensionGST))  
							mapControl1.Map.Load(new MapGeosetLoader(filename)); // add geoset
						else if (filename.ToLower().EndsWith(MapLoader.FileExtensionWOR)) 
						{
							mapControl1.Map.Load(new MapWorkSpaceLoader(filename));  // add workspace
							mapControl1.Map.Size = mapControl1.Size;
						}	
						else mapControl1.Map.Load(new MapTableLoader(filename));  // add table
					} 
					catch(MapException me) 
					{
						if (strCantOpenList==null) strCantOpenList = me.Arg; 
						else strCantOpenList = strCantOpenList + ", " + me.Arg;
					}
			if (strCantOpenList != null) 
				MessageBox.Show("The following failed to open: " + strCantOpenList);

			// Newly opened tables are generally selectable and can be added to,
			// so refresh the status bar to show the latest settings. 
			// UpdateAllControls();
		}