/// <summary>
/// 从图层名称根据属性条件查询记录集
/// </summary>
/// <param name="MapObj">地图控件</param>
/// <param name="LayerName">图层名称</param>
/// <param name="Attribute">查询属性</param>
/// <param name="HasGeometry">是否包含几何对象</param>
/// <param name="Cursor">游标模式</param>
/// <returns></returns>
public static Recordset GetRecordsetByDatasource(this DatasetVector DvSet, string Attribute, bool HasGeometry, CursorType Cursor)
{
QueryParameter queryParameter = new SuperMap.Data.QueryParameter();
queryParameter.AttributeFilter = Attribute;
queryParameter.CursorType = Cursor;
queryParameter.HasGeometry = HasGeometry;
Recordset rcd = DvSet.Query(queryParameter);
return(rcd);
}
/// <summary>
/// 从图层名称根据属性条件查询记录集
/// </summary>
/// <param name="MapObj">地图控件</param>
/// <param name="LayerName">图层名称</param>
/// <param name="Attribute">查询属性</param>
/// <param name="HasGeometry">是否包含几何对象</param>
/// <param name="Cursor">游标模式</param>
/// <returns></returns>
public static Recordset GetRecordset(this Map MapObj, string LayerName, string Attribute, bool HasGeometry, CursorType Cursor)
{
DatasetVector dvSet = (DatasetVector)MapObj.Layers[LayerName].Dataset;
QueryParameter queryParameter = new SuperMap.Data.QueryParameter();
queryParameter.AttributeFilter = Attribute;
queryParameter.CursorType = Cursor;
queryParameter.HasGeometry = HasGeometry;
Recordset rcd = dvSet.Query(queryParameter);
return(rcd);
}
/// <summary>
/// 从图层名称根据属性条件查询记录集
/// </summary>
/// <param name="MapObj">地图控件</param>
/// <param name="LayerName">图层名称</param>
/// <param name="Attribute">查询属性</param>
/// <param name="HasGeometry">是否包含几何对象</param>
/// <param name="Cursor">游标模式</param>
/// <returns></returns>
public static Recordset GetRecordsetByIntersect(this Map MapObj, string LayerName, Geometry Geo, string Attribute, bool HasGeometry, CursorType Cursor)
{
Geometry query = Geo.Clone();
DatasetVector dvSet = (DatasetVector)MapObj.Layers[LayerName].Dataset;
QueryParameter queryParameter = new SuperMap.Data.QueryParameter();
queryParameter.AttributeFilter = Attribute;
queryParameter.CursorType = Cursor;
queryParameter.HasGeometry = HasGeometry;
queryParameter.SpatialQueryMode = SpatialQueryMode.Intersect;
queryParameter.SpatialQueryObject = query;
Recordset rcd = dvSet.Query(queryParameter);
return(rcd);
}