GIS_cs/WWPipeLine/WWPipeLine.Map/Tools/Conditions/Statistics/GXchangduQY.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;

namespace WWPipeLine.MapTools.Conditions.Statistics
{
	public partial class GXchangduQY : ConditionPanel
	{
		GeoRegion m_geo = null;
		public GXchangduQY() : base()
		{
			this.ConditionPanelName = "区域管线长度统计";
			InitializeComponent();
			IsLoadBtnOKClick = true;
		}
		protected override void OnLoad(EventArgs e)
		{
			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)
		{
			DataTable dt = new DataTable();
			dt.Columns.Add("统计图层");
			dt.Columns.Add("管线长度");
			//dt.Columns.Add("管线数量");
			DataRow dr;
			dr = dt.NewRow();
			dr["统计图层"] = "供水管线";
			Recordset rd = ComsStatic.dvJSLK.Query(m_geo, 1, "1=1", CursorType.Static);
			dr["管线长度"] = rd.Statistic("cd", StatisticMode.Sum);
			//dr["管线数量"] = dvJSLK_cp.RecordCount;
			dt.Rows.Add(dr);
			ComsStatic.RecordsetDispose(rd);
			return dt;
		}
	}
}