ArcGIS Pro SDK （五）内容 3 地理数据库内容

ArcGIS Pro SDK （五）内容 3 地理数据库内容

环境：Visual Studio 2022 + .NET6 + ArcGIS Pro SDK 3.0

1 浏览对话框中的地理数据库内容

var openDlg = new OpenItemDialog
{
    Title = "Select a Feature Class",
    InitialLocation = @"C:\Data",
    MultiSelect = false,
    BrowseFilter = BrowseProjectFilter.GetFilter(ArcGIS.Desktop.Catalog.ItemFilters.GeodatabaseItems_All)
};

//显示浏览对话框
bool? ok = openDlg.ShowDialog();
if (!ok.HasValue || openDlg.Items.Count() == 0)
    return;   //没有选择项

await QueuedTask.Run(() =>
                     {
                         //获取项
                         var item = openDlg.Items.First();

                         //查看项是否有数据集
                         if (ItemFactory.Instance.CanGetDataset(item))
                         {
                             //获取数据集
                             using (var ds = ItemFactory.Instance.GetDataset(item))
                             {
                                 //访问某些属性
                                 var name = ds.GetName();
                                 var path = ds.GetPath();

                                 //如果它是一个featureclass
                                 if (ds is ArcGIS.Core.Data.FeatureClass fc)
                                 {
                                     //创建图层
                                     var featureLayerParams = new FeatureLayerCreationParams(fc)
                                     {
                                         MapMemberIndex = 0
                                     };
                                     var layer = LayerFactory.Instance.CreateLayer<FeatureLayer>(featureLayerParams, MapView.Active.Map);

                                     //继续
                                 }
                             }
                         }
                     });

2 目录中的地理数据库内容

//订阅事件
ProjectWindowSelectedItemsChangedEvent.Subscribe(async (ProjectWindowSelectedItemsChangedEventArgs args) =>
{
  if (args.IProjectWindow.SelectionCount > 0)
  {
    //获取第一个选中的项
    var selectedItem = args.IProjectWindow.SelectedItems.First();

    await QueuedTask.Run(() =>
    {
      //数据集类型
      var dataType = ItemFactory.Instance.GetDatasetType(selectedItem);
    
      //获取数据集定义
      if (ItemFactory.Instance.CanGetDefinition(selectedItem))
      {
        using (var def = ItemFactory.Instance.GetDefinition(selectedItem))
        {
          if (def is ArcGIS.Core.Data.FeatureClassDefinition fcDef)
          {
            var oidField = fcDef.GetObjectIDField();
            var shapeField = fcDef.GetShapeField();
            var shapeType = fcDef.GetShapeType();
          }
          else if (def is ArcGIS.Core.Data.Parcels.ParcelFabricDefinition pfDef)
          {
            string ver = pfDef.GetSchemaVersion();
            bool enabled = pfDef.GetTopologyEnabled();
          }
    
          
        }
      }
    
      //获取数据集
      if (ItemFactory.Instance.CanGetDataset(selectedItem))
      {
        using (var ds = ItemFactory.Instance.GetDataset(selectedItem))
        {
          if (ds is ArcGIS.Core.Data.FeatureDataset fds)
          {
            //在要素数据集中打开featureclasses
            //var fcPoint = fds.OpenDataset<FeatureClass>("Point");
            //var fcPolyline = fds.OpenDataset<FeatureClass>("Polyline");
          }
          else if (ds is FeatureClass fc)
          {
            var name = fc.GetName() + "_copy";
    
            //创建
            var featureLayerParams = new FeatureLayerCreationParams(fc)
            {
              Name = name,
              MapMemberIndex = 0
            };
            LayerFactory.Instance.CreateLayer<FeatureLayer>(featureLayerParams, MapView.Active.Map);
          }
          else if (ds is Table table)
          {
            var name = table.GetName() + "_copy";
            var tableParams = new StandaloneTableCreationParams(table)
            {
              Name = name
            };
            //创建
            StandaloneTableFactory.Instance.CreateStandaloneTable(tableParams, MapView.Active.Map);
          }
        }
      }
    });
  }
});