GIS_cs/WWPipeLine/WWPipeLine.Map/Tools/Conditions/Statistics/GDshuliangQY.cs

using SuperMap.Data;
using System;
using System.Collections.Generic;
using System.Data;
using WeifenLuo.WinFormsUI.Docking;
using WWPipeLine.MapBasic.Conditions;
using WWPipeLine.MapBasic;
using SuperMap.Mapping;
using SuperMap.UI;
using System.Drawing;

namespace WWPipeLine.MapTools.Conditions.Statistics
{
	public partial class GDshuliangQY : ConditionPanel
	{
		private LayerWithDataListPanel LayerPanel;
		GeoRegion m_geo = null;
		public GDshuliangQY() : base()
		{
			this.ConditionPanelName = "区域管点数量统计";
			InitializeComponent();
		}
		protected override void OnLoad(EventArgs e)
		{
			LayerPanel = new LayerWithDataListPanel();
			LayerPanel.LoadToVector(true, false);
			this.Controls.Add(LayerPanel);

			int index = MapControl.Map.TrackingLayer.IndexOf("ControlToolAddGeoRegion");
			if (index == -1)
			{
				Sunny.UI.UIMessageTip.ShowError("请先绘制查询区域");
				this.FindForm().Close(); return;
			}
			m_geo = MapControl.Map.TrackingLayer.Get(index) as GeoRegion;
			if (m_geo is null || m_geo.PartCount != 1)
			{
				ComsStatic.ShowErrorLog("绘制区域PartCount参数发生错误");
				this.FindForm().Close(); return;
			}
		} 
		public override object Do(DockPanel dockPanel = null)
		{
			if (m_geo is null)
			{
				Sunny.UI.UIMessageTip.ShowError("请先绘制查询区域"); return false;
			}
			if (LayerPanel.SelectLayers.Count == 0)
			{
				Sunny.UI.UIMessageTip.ShowError("请先选择需要查询的图层"); return false;
			}
			DataTable dt = new DataTable() { TableName = "管点数量统计结果" };
			DataRow dr;
			dt.Columns.Add("统计图层");
			foreach (Layer lyr in LayerPanel.SelectLayers)
			{
				dt.Columns.Add(lyr.Caption);
			}
			dr = dt.NewRow(); dr["统计图层"] = "管点数量";
			DatasetVector dv;
			Recordset rd = null;
			foreach (Layer lyr in LayerPanel.SelectLayers)
			{
				dv = lyr.Dataset as DatasetVector;
				rd = dv.Query(m_geo, 1, "1=1", CursorType.Static);
				dr[lyr.Caption] = rd.RecordCount;
			}
			dt.Rows.Add(dr);
			ComsStatic.RecordsetDispose(rd);
			return dt;
		} 
	}
}