Code让结果集中的记录高亮显示（通用版）
我在结果集中每条记录后都加了一个按钮，写明“定位”，点击后执行下列语句：不敢独享，大家有更好的方法可以提意见，共同学习
protected void gvComponent_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "MyCommand")
{
//---------------------------------------------------------------
SelectFeaturesGroup(LayerNames, Colors, WhereText, count, Map1, GridView1);
//------------------------------------------------
for (int i = 0; i < pointlist.Count; i++)
{
if (pointlist is ESRI.ArcGIS.ADF.Web.Geometry.Point)
{
ESRI.ArcGIS.ADF.Web.Geometry.Point pt = (ESRI.ArcGIS.ADF.Web.Geometry.Point)pointlist;
agf.DrawEvent(pt.X, pt.Y, Map1);
}
if (pointlist is ESRI.ArcGIS.ADF.Web.Geometry.Polyline)
{
ESRI.ArcGIS.ADF.Web.Geometry.Polyline line = (ESRI.ArcGIS.ADF.Web.Geometry.Polyline)pointlist;
agf.DrawEvent(line, Map1);
}
if (pointlist is ESRI.ArcGIS.ADF.Web.Geometry.Polygon)
{
ESRI.ArcGIS.ADF.Web.Geometry.Polygon poly = (ESRI.ArcGIS.ADF.Web.Geometry.Polygon)pointlist;
agf.DrawEvent(poly, Map1);
}
}
/// <summary>
/// 多个图层部分或全部控件不同颜色显示
/// </summary>
/// <param name="layernames">图层名</param>
/// <param name="color">显示颜色</param>
/// <param name="wheretext">查询条件</param>
/// <param name="count">MapResource的count</param>
/// <param name="Map1">Map控件</param>
/// <param name="GridView1">将部分控件信息显示到GridView中</param>
public void SelectFeaturesGroup(string[] layernames, System.Drawing.Color[] color, String[] wheretext, int count, Map Map1, GridView GridView1)
{
Clear(Map1);
int resource_index = count;
string[] targetlayername = layernames;
System.Data.DataTable[] datatable = new DataTable[layernames.Length];
ESRI.ArcGIS.ADF.Web.DataSources.IMapFunctionality mf = (ESRI.ArcGIS.ADF.Web.DataSources.IMapFunctionality)Map1.GetFunctionality(resource_index);
MapFunctionality mf1 = (MapFunctionality)Map1.GetFunctionality(resource_index);
ESRI.ArcGIS.ADF.ArcGISServer.MapDescription mapDescription = mf1.MapDescription;
ESRI.ArcGIS.ADF.Web.DataSources.IGISResource gisresource = mf.Resource;
bool supported = gisresource.SupportsFunctionality(typeof(ESRI.ArcGIS.ADF.Web.DataSources.IQueryFunctionality));
if (supported)
{
ESRI.ArcGIS.ADF.Web.DataSources.IQueryFunctionality qfunc;
qfunc = (ESRI.ArcGIS.ADF.Web.DataSources.IQueryFunctionality)gisresource.CreateFunctionality(typeof(ESRI.ArcGIS.ADF.Web.DataSources.IQueryFunctionality), null);
string[] lids;
string[] lnames;
qfunc.GetQueryableLayers(null, out lids, out lnames);
//-------------------------------------------------
int[] layer_index = new int[layernames.Length];
for (int i = 0; i < targetlayername.Length; i++)
{
for (int j = 0; j < lnames.Length; j++)
{
// 找到符合要求的图层编号
if (lnames[j] == targetlayername)
{
layer_index = j;
break;
}
}
}
//-------------------------------------------------
ESRI.ArcGIS.ADF.Web.SpatialFilter[] spatialfilter = new ESRI.ArcGIS.ADF.Web.SpatialFilter[targetlayername.Length]; ;
for (int i = 0; i < targetlayername.Length; i++)
{
spatialfilter = new ESRI.ArcGIS.ADF.Web.SpatialFilter();
spatialfilter.ReturnADFGeometries = false;
spatialfilter.MaxRecords = 1000;
if (wheretext != "" || wheretext != string.Empty)
{
spatialfilter.WhereClause = wheretext;
}
}
//**********************8888888
ESRI.ArcGIS.ADF.Web.Geometry.Envelope[] extent = new ESRI.ArcGIS.ADF.Web.Geometry.Envelope[layernames.Length];
DataTable dtextent = new DataTable();
dtextent.Columns.Add("XMax", typeof(double));
dtextent.Columns.Add("XMin", typeof(double));
dtextent.Columns.Add("YMax", typeof(double));
dtextent.Columns.Add("YMin", typeof(double));
//**************************8888888888
for (int m = 0; m < layernames.Length; m++)
{
datatable[m] = qfunc.Query(null, lids[layer_index[m]], spatialfilter[m]);
//if (layernames.Length == 1 && datatable[m].Rows.Count == 0)
//{
// return;
//}
//***********************88888888888
DataRow drextent = dtextent.NewRow();
ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicsLayer graphicslayer = (ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicsLayer)ESRI.ArcGIS.ADF.Web.UI.WebControls.Converter.ToGraphicsLayer(datatable[m]);
extent[m] = graphicslayer.FullExtent;
drextent["XMax"] = extent[m].XMax;
drextent["XMin"] = extent[m].XMin;
drextent["YMax"] = extent[m].YMax;
drextent["YMin"] = extent[m].YMin;
dtextent.Rows.Add(drextent);
//*************************8888888888
}
//*****************888888888888888
double[] xmax = new double[dtextent.Rows.Count];
double[] xmin = new double[dtextent.Rows.Count];
double[] ymax = new double[dtextent.Rows.Count];
double[] ymin = new double[dtextent.Rows.Count];
for (int i = 0; i < dtextent.Rows.Count; i++)
{
xmax = (double)dtextent.Rows[0];
xmin = (double)dtextent.Rows[1];
ymax = (double)dtextent.Rows[2];
ymin = (double)dtextent.Rows[3];
}
//BubbleSort()是一个给数组排序的方法
BubbleSort(xmax);
BubbleSort(xmin);
BubbleSort(ymax);
BubbleSort(ymin);
ESRI.ArcGIS.ADF.Web.Geometry.Envelope extent1 = new ESRI.ArcGIS.ADF.Web.Geometry.Envelope();
int iLayerCount = 0;
for (int k = 0; k < xmax.Length; k++)
{
if (xmax[k].ToString() != "非数字")
{
iLayerCount=k;
break;
}
}
extent1.XMax = xmax[iLayerCount];
extent1.XMin = xmin[iLayerCount];
extent1.YMax = ymax[iLayerCount];
extent1.YMin = ymin[iLayerCount];
System.Web.HttpContext.Current.Session["extent"] = extent1;
//******************88888888888888
}
ArrayList al = new ArrayList();
ArrayList pointname = new ArrayList();
ArrayList pointlist = new ArrayList();
for (int m = 0; m < layernames.Length; m++)
{
if (datatable[m] != null)
{
int intShape = -1;
foreach (System.Data.DataColumn col in datatable[m].Columns)
{
if (col.ColumnName == "SHAPE")
{
intShape = col.Ordinal;
break;
}
}
for (int i = 0; i < datatable[m].Rows.Count; i++)
{
pointname.Add(datatable[m].Rows["name"].ToString());
if (datatable[m].Rows.ItemArray[intShape] is ESRI.ArcGIS.ADF.Web.Geometry.Point)
{
ESRI.ArcGIS.ADF.Web.Geometry.Point point2 = (ESRI.ArcGIS.ADF.Web.Geometry.Point)datatable[m].Rows.ItemArray[intShape];
ESRI.ArcGIS.ADF.Web.Geometry.Point ptt = (ESRI.ArcGIS.ADF.Web.Geometry.Point)point2;
al.Add(ptt);
}
if (datatable[m].Rows.ItemArray[intShape] is ESRI.ArcGIS.ADF.Web.Geometry.Polyline)
{
ESRI.ArcGIS.ADF.Web.Geometry.Polyline line = (ESRI.ArcGIS.ADF.Web.Geometry.Polyline)datatable[m].Rows.ItemArray[intShape];
ESRI.ArcGIS.ADF.Web.Geometry.Polyline pline = (ESRI.ArcGIS.ADF.Web.Geometry.Polyline)line;
al.Add(pline);
}
if (datatable[m].Rows.ItemArray[intShape] is ESRI.ArcGIS.ADF.Web.Geometry.Polygon)
{
ESRI.ArcGIS.ADF.Web.Geometry.Polygon gon = (ESRI.ArcGIS.ADF.Web.Geometry.Polygon)datatable[m].Rows.ItemArray[intShape];
ESRI.ArcGIS.ADF.Web.Geometry.Polygon pgon = (ESRI.ArcGIS.ADF.Web.Geometry.Polygon)gon;
al.Add(pgon);
}
}
}
}
pointlist.Add(al);
pointlist.Add(pointname);
System.Web.HttpContext.Current.Session["SelectData"] = pointlist;
//多层数据合并显示=================================
DataTable dt2 = new DataTable();
dt2.Columns.Add("OBJECTID", typeof(Int32));
dt2.Columns.Add("name", typeof(string));
dt2.Columns.Add("id_i", typeof(Int32));
for (int i = 0; i < layernames.Length; i++)
{
for (int j = 0; j < datatable.Rows.Count; j++)
{
DataRow row = dt2.NewRow();
row["OBJECTID"] = datatable.Rows[j]["OBJECTID"];
row["name"] = datatable.Rows[j]["name"];
dt2.Rows.Add(row);
}
}
for (int i = 0; i < dt2.Rows.Count; i++)
{
dt2.Rows["id_i"] = i + 1;
}
GridView1.DataSource = dt2;
GridView1.DataBind();
}
Map1.Zoom(100.0);
}