//GridControl的双击事件
private void GridControl_Info_DoubleClick(object sender, EventArgs e)
{
if (GridControl_Info.DataSource != null)
{ //获取FID或者第一个ID字段名称（索引字段）
string StrClmIndex = GridView_Info.Columns[0].FieldName;
//获取FID或者第一个ID字段值
int IntQueryIndex = Convert.ToInt32(GridView_Info.GetSelectedRows()[0]);
//查询定位的要素对象
IFeatureClass pFC = pFeaLyr.FeatureClass;
IQueryFilter qFilter = new QueryFilter();
qFilter.WhereClause = StrClmIndex + "=" + IntQueryIndex.ToString();
IFeatureCursor fCursor = pFC.Search(qFilter, false);
IFeature feature = fCursor.NextFeature();
//获取查询要素中心点
IPoint point = new ESRI.ArcGIS.Geometry.Point();
//如果是面
if (feature.Shape.GeometryType == ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPolygon)
{
IArea area = feature.Shape as IArea;
point = area.Centroid;
}
//如果是点
else if (feature.Shape.GeometryType == ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPoint)
{
point = feature.Shape as IPoint;
}
//如果是线
else if (feature.Shape.GeometryType == ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPolyline)
{
IArea area = feature.Extent as IArea;
point = area.Centroid;
}
//根据要素中心点进行空间定位
axMapControl_1.CenterAt(point);
axMapControl_1.Update();
FlashFeature(feature);
}
else
{
MessageBox.Show("请先执行查询功能，再进行双击确定定位操作！");
}
}
