private DataTable GetDataTable(MG_Layer layer)
{
// Create a new DataTable.
DataTable table = new DataTable(layer.GetLayerName());
// add oid
DataColumn oid_Column = new DataColumn("OID", Type.GetType("System.Int32"));
table.Columns.Add(oid_Column);
int i, j;
// Add the column
for (i = 0; i < layer.GetFieldSet().Count(); i++)
{
MG_Field field = layer.GetFieldSet().GetAt(i);
DataColumn column = new DataColumn(field.Name);
column.DataType = Type.GetType("System.String");
// Add the Column to the DataColumnCollection.
table.Columns.Add(column);
}
// Add the row
for (i = 0; i < layer.GetFeatureCount(); i++)
{
MG_Feature f = layer.GetFeature(i);
DataRow row = table.NewRow();
// add oid
row[0] = i+1;
for (j = 0; j < f.GetFieldCount(); j++)
{
object value = f.GetValue(j).Value;
if (value != null)
{
row[j + 1] = value.ToString();
}
}
// Add the row to the DataRowCollection.
table.Rows.Add(row);
}
return table;
}
public void ImportLayer(MG_Layer layer)
{
if (layer == null)
return;
// stop multi same data
if (this.IsTableExist(layer.GetLayerName()))
return;
this.CreateTable(layer.FieldSet, layer.Type);
string layerName = layer.FieldSet.GetName();
int fc = layer.GetFeatureCount();
// save ext
this.CreateTableExt();
this.InsertExtent(layerName,layer.Extent);
for (int i=0; i< fc;i++)
{
MG_Feature f = layer.GetFeature(i);
if (f.Geometry.Type == layer.Type)
{
this.Insert(layerName, f.ValueSet, f.Geometry);
}
}
}
private void addPostGIS_Click(object sender, EventArgs e)
{
// get selected map first
MG_Map map = this.getSelectedMap();
ArrayList tables = m_pgOper.GetTableNames();
MG_DlgListTableNames dlg = new MG_DlgListTableNames();
dlg.InitializeTableNames(tables);
dlg.ShowDialog();
string selectedTable = dlg.GetSelectedTableName();
if (selectedTable != null)
{
MG_Layer layer = new MG_Layer();
layer = m_pgOper.ExportLayer(selectedTable);
map.AddLayer(layer);
// update m_gMapView
this.updateMapView();
// add to treeview
TreeNode layerNode = new TreeNode();
layerNode.Text = layer.GetLayerName();
layerNode.Checked = true;
this.forceSelectedNodeToMap();
this.m_gSelectedNode.Nodes.Add(layerNode);
this.m_gSelectedNode.ExpandAll();
// set selected node to layer node
this.m_gSelectedNode = layerNode;
this.treeViewContent.SelectedNode = this.m_gSelectedNode;
}
this.Refresh();
// set state
this.setState();
}
private void newLayer_Click(object sender, EventArgs e)
{
// get selected map first
MG_Map map = this.getSelectedMap();
// new layer
MG_Layer layer = new MG_Layer();
//set layer extent
MG_MapExtent mapExt = map.GetMapExtent();
if (mapExt.Empty())
{
layer.Extent = new MG_MapExtent(this.panel1.ClientRectangle);
}
else
{
layer.Extent = mapExt;
}
// get layer name AND type
MG_DlgNewLayer dlg = new MG_DlgNewLayer();
dlg.InitializeLayerName(layer.GetLayerName());
dlg.InitializeLayerType(MG_GeometryType.LINESTRING);
dlg.ShowDialog();
layer.SetLayerName(dlg.GetLayerName());
layer.SetLayerType(dlg.GetLayerType());
// add layer to map
map.AddLayer(layer);
// update m_gMapView
this.updateMapView();
// add to treeview
TreeNode layerNode = new TreeNode();
layerNode.Text = layer.GetLayerName();
layerNode.Checked = true;
this.forceSelectedNodeToMap();
this.m_gSelectedNode.Nodes.Add(layerNode);
this.m_gSelectedNode.ExpandAll();
// set selected node to layer node
this.m_gSelectedNode = layerNode;
this.treeViewContent.SelectedNode = this.m_gSelectedNode;
this.Refresh();
// set state
this.setState();
}