internal List <Datarow> DoQueryFileTableData(XmlNodeList nodelist, string tableName, MapExtent extent)
{
Datatable table = GetDatatable(tableName);
if (table != null)
{
switch (table.TableType)
{
case DatatableType.Null:
break;
case DatatableType.Point:
return(DoParserPointData(nodelist, tableName, extent));
case DatatableType.Raster:
return(DoParserRasterData(nodelist, tableName, extent));
case DatatableType.Line:
return(DoParserLineData(nodelist, tableName, extent));
case DatatableType.Polygon:
return(DoParserPolygonData(nodelist, tableName, extent));
default:
break;
}
}
return(new List <Datarow>());
}
public static Datatable GetTable(Workspace.Workspace ws, Layer layer)
{
LsMap.Data.Datasource ds = ws.GetDatasource(layer.DatasourceName);
if (ds != null)
{
LsMap.Data.Datatable dt = ws.GetDatatable(ds, layer.DatatableName);
return(dt);
}
return(null);
}
internal void DoOpenFileDataSrc()
{
//数据库中所有数据
string[] allfiles = System.IO.Directory.GetFiles(_datasourcePath);
if (allfiles == null || allfiles.Length == 0)
{
return;
}
//表文件
IEnumerable <string> lsdtfiles = allfiles.Where(delegate(string s)
{
return(s.EndsWith(".lsdt"));
});
if (lsdtfiles.Count() == 0)
{
return;
}
foreach (string item in lsdtfiles)
{
XmlDocument document = new XmlDocument();
document.Load(item);
XmlNode root = document.SelectSingleNode("datas");
if (root == null)
{
continue;
}
XmlAttribute attritype = root.Attributes["type"];
if (attritype == null)
{
continue;
}
string datatype = attritype.Value;
DatatableType type = DatatableType.Null;
if (!Enum.TryParse <DatatableType>(datatype, true, out type))
{
continue;
}
string tablename = System.IO.Path.GetFileNameWithoutExtension(item);
Datatable dataTable = new Datatable(tablename, type);
dataTable.Datasource = this;
this.Tables.Add(dataTable);
// XmlNodeList nodelist = document.SelectNodes("datas/data");
//
// if (nodelist != null && nodelist.Count > 0)
// {
// DoParserFileTableData(nodelist, dataTable, item);
// }
}
}
public Layer(LsMap.Data.Datasource datasource, LsMap.Data.Datatable datatable)
{
_datasource = datasource;
_datatable = datatable;
_layerID = ++LAYERID;
}
