mapControl.MousePointer = esriControlsMousePointer.esriPointerArrowQuestion;//设置鼠标样式
//添加鼠标事件
mapControl.OnMouseDown += new AxESRI.ArcGIS.Controls.IMapControlEvents2_OnMouseDownEventHandler(EsriMapEvent.MapFrameSelection_OnMouseDown);
public static void MapFrameSelection_OnMouseDown(object sender, IMapControlEvents2_OnMouseDownEvent e)
{
AxMapControl map = sender as AxMapControl;
if (e.button == 1 && map.MousePointer == esriControlsMousePointer.esriPointerArrowQuestion)
{
Dictionary<string, DataTable> pairs = new Dictionary<string, DataTable>();//存储要素信息
IEnvelope ipEnvfd = map.TrackRectangle();
IGeometry pGeometry = ipEnvfd as IGeometry;
//选中多个要素
map.Map.SelectByShape(pGeometry, null, false);
//
map.Refresh(esriViewDrawPhase.esriViewGeoSelection, null, null);
//过滤器
ISpatialFilter pSpatialFilter = new SpatialFilterClass();
pSpatialFilter.Geometry = pGeometry;
pSpatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects;
SelectionAttribute attribute = new SelectionAttribute();
TreeList tree = attribute.GetTree();
tree.Columns.Clear();
TreeListColumn newColumn = tree.Columns.Add();
newColumn.Caption = "图层";
newColumn.Visible = true;
//TreeList tree = new TreeList();
for (int i = 0; i < map.LayerCount; i++)
{
if (map.get_Layer(i) is IGroupLayer)
{
TreeListNode treeNode = tree.Nodes.Add(new System.Object[] { map.get_Layer(i).Name, map.get_Layer(i) });
//查找图层组下的结点
GetGroupLayerNodes(map.get_Layer(i), treeNode, pSpatialFilter,ref pairs);
}
if (map.get_Layer(i) is IFeatureLayer)
{
IFeatureLayer pFeatureLayer = map.get_Layer(i) as IFeatureLayer;
IFeatureCursor pFeatureCursor = pFeatureLayer.Search(pSpatialFilter, false);
if (pFeatureCursor != null)
{
//添加图层节点
TreeListNode treeNode = tree.Nodes.Add(new System.Object[] { pFeatureLayer.Name, pFeatureLayer });
//获取该图层下的子节点
GetLayerNodes(pFeatureCursor, treeNode, ref pairs);
}
}
}
if (tree.Nodes.Count > 0)
{
attribute.SetDictionary(pairs);
attribute.Expand();
attribute.Show();
//清除选择
map.Map.ClearSelection();
}
}
}
/// <summary>
/// 查找图层组下所有子图层节点
/// </summary>
/// <param name="player"></param>
/// <param name="midNode"></param>
private static void GetGroupLayerNodes(ILayer player, TreeListNode midNode, ISpatialFilter pSpatialFilter, ref Dictionary<string, DataTable> pairs)
{
ICompositeLayer midpos = player as ICompositeLayer;
for (int i = 0; i < midpos.Count; i++)
{
if (midpos.get_Layer(i) is IGroupLayer)
{
GetGroupLayerNodes(midpos.get_Layer(i), midNode, pSpatialFilter, ref pairs);
}
if(midpos.get_Layer(i) is IFeatureLayer)
{
IFeatureLayer pFeatureLayer = midpos.get_Layer(i) as IFeatureLayer;
IFeatureCursor pFeatureCursor = pFeatureLayer.Search(pSpatialFilter, false);
if (pFeatureCursor != null)
{
//添加图层节点
TreeListNode treeNode = midNode.Nodes.Add(new System.Object[] { pFeatureLayer.Name, pFeatureLayer });
//获取该图层下的子节点
GetLayerNodes(pFeatureCursor, treeNode, ref pairs);
}
}
}
}
/// <summary>
/// 添加feature节点
/// </summary>
/// <param name="player"></param>
/// <param name="midNode"></param>
private static void GetLayerNodes(IFeatureCursor pFeatureCursor, TreeListNode midNode, ref Dictionary<string, DataTable> pairs)
{
IFeature pfeature = pFeatureCursor.NextFeature();
while (pfeature != null)
{
//唯一值字段标识
int OID =Convert.ToInt32(pfeature.Value[pfeature.Class.FindField(pfeature.Class.OIDFieldName)]);
midNode.Nodes.Add(new System.Object[] { OID, pfeature });
if (!pairs.ContainsKey(OID.ToString()))
{
DataTable dt = GetFeatureDataTable(pfeature);
pfeature = pFeatureCursor.NextFeature();
string key = OID.ToString()+ midNode[0];
pairs.Add(key, dt);
}
}
}
//SelectionAttribute为自己添加的窗体
public partial class SelectionAttribute : Form
{
Dictionary<string, DataTable> pairs = new Dictionary<string, DataTable>();
public SelectionAttribute()
{
InitializeComponent();
}
public void SetDataAttribute(string featureName)
{
DataTable dt = pairs[featureName];
DataSelect.DataSource = dt;
}
public void SetDictionary(Dictionary<string, DataTable> pairs)
{
this.pairs = pairs;
}
public TreeList GetTree()
{
return SelectFeatureTree;
}
public void Expand()
{
SelectFeatureTree.ExpandAll();
}
private void SelectFeatureTree_MouseDoubleClick(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
//
TreeList tree = sender as TreeList;
//
TreeListHitInfo hitInfo = tree.CalcHitInfo(e.Location);
//获得点选的节点
TreeListNode node = hitInfo.Node;
string selectFeatureName = node[0].ToString();
string key = selectFeatureName + node.ParentNode[0];
node.TreeList.Appearance.BandPanel.BackColor = System.Drawing.Color.SteelBlue;
if (pairs.ContainsKey(key))
{
DataSelect.DataSource = pairs[key];
}
}
}
}
查询结果
