public bool OnContextMenu(int x, int y)
{
System.Drawing.Point pt = this.PointToClient(System.Windows.Forms.Cursor.Position);
//Get the active category
IEngineNAWindowCategory2 activeCategory = m_naWindow.ActiveCategory as IEngineNAWindowCategory2;
if (activeCategory == null)
{
return(false);
}
MenuItem separator = new MenuItem("-");
miLoadLocations.Enabled = false;
miClearLocations.Enabled = false;
// in order for the AddItem choice to appear in the context menu, the class
// should be an input class, and it should not be editable
INAClassDefinition pNAClassDefinition = activeCategory.NAClass.ClassDefinition;
if (pNAClassDefinition.IsInput)
{
miLoadLocations.Enabled = true;
miClearLocations.Enabled = true;
// canEditShape should be false for AddItem to Apply (default is false)
// if it's a StandaloneTable canEditShape is implicitly false (there's no shape to edit)
bool canEditShape = false;
IFields pFields = pNAClassDefinition.Fields;
int nField = -1;
nField = pFields.FindField("Shape");
if (nField >= 0)
{
int naFieldType = 0;
naFieldType = pNAClassDefinition.get_FieldType("Shape");
// determining whether or not the shape field can be edited consists of running a bitwise comparison
// on the FieldType of the shape field. See the online help for a list of the possible field types.
// For our case, we want to verify that the shape field is an input field. If it is an input field,
// then we do NOT want to display the Add Item menu option.
canEditShape = ((naFieldType & (int)esriNAFieldType.esriNAFieldTypeInput) == (int)esriNAFieldType.esriNAFieldTypeInput) ? true : false;
}
if (!canEditShape)
{
contextMenu1.MenuItems.Add(separator);
contextMenu1.MenuItems.Add(miAddItem);
}
}
contextMenu1.Show(this, pt);
// even if the miAddItem menu item has not been added, Remove() won't crash.
contextMenu1.MenuItems.Remove(separator);
contextMenu1.MenuItems.Remove(miAddItem);
return(true);
}
public bool ShowModal(IMapControl3 mapControl, IEngineNetworkAnalystEnvironment naEnv)
{
// Initialize variables
m_okClicked = false;
m_listDisplayTable = new System.Collections.ArrayList();
// Get the NALayer and NAContext
INALayer naLayer = naEnv.NAWindow.ActiveAnalysis;
INAContext naContext = naLayer.Context;
//Get the active category
IEngineNAWindowCategory2 activeCategory = naEnv.NAWindow.ActiveCategory as IEngineNAWindowCategory2;
if (activeCategory == null)
{
return(false);
}
INAClass naClass = activeCategory.NAClass;
IDataset naDataset = naClass as IDataset;
IDataLayer pDataLayer = activeCategory.DataLayer;
ILayer pLayer = pDataLayer as ILayer;
IFeatureLayer pFeatureLayer = pDataLayer as IFeatureLayer;
IStandaloneTable pStandaloneTable = pDataLayer as IStandaloneTable;
esriGeometryType targetGeoType = esriGeometryType.esriGeometryNull;
String dataLayerName = "";
if (pFeatureLayer != null)
{
if (pLayer.Valid)
{
IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass;
if (pFeatureClass != null)
{
targetGeoType = pFeatureClass.ShapeType;
dataLayerName = pLayer.Name;
}
}
}
else if (pStandaloneTable != null)
{
dataLayerName = pStandaloneTable.Name;
}
if (dataLayerName.Length == 0)
{
return(false);
}
this.Text = "Load Items into " + dataLayerName;
// Loop through all the sourcedisplayTables having targetGeoType to the combo box and the
// list of displayTables
IEnumLayer sourceLayers = null;
ILayer sourceLayer = null;
IDisplayTable sourceDisplayTable = null;
UID searchInterfaceUID = new UID();
if (targetGeoType != esriGeometryType.esriGeometryNull)
{
searchInterfaceUID.Value = typeof(IFeatureLayer).GUID.ToString("B");
sourceLayers = mapControl.Map.get_Layers(searchInterfaceUID, true);
sourceLayer = sourceLayers.Next();
while (sourceLayer != null)
{
IFeatureLayer sourceFeatureLayer = sourceLayer as IFeatureLayer;
sourceDisplayTable = sourceLayer as IDisplayTable;
if ((sourceFeatureLayer != null) && (sourceDisplayTable != null))
{
IFeatureClass sourceFeatureClass = sourceFeatureLayer.FeatureClass;
esriGeometryType sourceGeoType = sourceFeatureClass.ShapeType;
if ((sourceGeoType == targetGeoType) ||
(targetGeoType == esriGeometryType.esriGeometryPoint && sourceGeoType == esriGeometryType.esriGeometryMultipoint))
{
// Add the layer name to the combobox and the layer to the list
cboInputData.Items.Add(sourceLayer.Name);
m_listDisplayTable.Add(sourceDisplayTable);
}
}
sourceLayer = sourceLayers.Next();
}
}
else //if (targetGeoType == esriGeometryType.esriGeometryNull)
{
IStandaloneTableCollection sourceStandaloneTables = mapControl.Map as IStandaloneTableCollection;
IStandaloneTable sourceStandaloneTable = null;
sourceDisplayTable = null;
int count = 0;
if (sourceStandaloneTables != null)
{
count = sourceStandaloneTables.StandaloneTableCount;
}
for (int i = 0; i < count; ++i)
{
sourceStandaloneTable = sourceStandaloneTables.get_StandaloneTable(i);
sourceDisplayTable = sourceStandaloneTable as IDisplayTable;
if ((sourceStandaloneTable != null) && (sourceDisplayTable != null))
{
// Add the table name to the combobox and the layer to the list
cboInputData.Items.Add(sourceStandaloneTable.Name);
m_listDisplayTable.Add(sourceDisplayTable);
}
}
searchInterfaceUID.Value = typeof(INALayer).GUID.ToString("B");
sourceLayers = mapControl.Map.get_Layers(searchInterfaceUID, true);
sourceLayer = sourceLayers.Next();
while (sourceLayer != null)
{
INALayer sourceNALayer = sourceLayer as INALayer;
if (sourceNALayer != null)
{
sourceStandaloneTables = sourceNALayer as IStandaloneTableCollection;
sourceStandaloneTable = null;
sourceDisplayTable = null;
count = 0;
if (sourceStandaloneTables != null)
{
count = sourceStandaloneTables.StandaloneTableCount;
}
for (int i = 0; i < count; ++i)
{
sourceStandaloneTable = sourceStandaloneTables.get_StandaloneTable(i);
sourceDisplayTable = sourceStandaloneTable as IDisplayTable;
if ((sourceStandaloneTable != null) && (sourceDisplayTable != null))
{
// Add the table name to the combobox and the layer to the list
cboInputData.Items.Add(sourceStandaloneTable.Name);
m_listDisplayTable.Add(sourceDisplayTable);
}
}
}
sourceLayer = sourceLayers.Next();
}
}
//Select the first display table from the list
if (cboInputData.Items.Count > 0)
{
cboInputData.SelectedIndex = 0;
}
// Show the window
this.ShowDialog();
// If we selected a layer and clicked OK, load the locations
if (m_okClicked && (cboInputData.SelectedIndex >= 0))
{
// Get a cursor on the source display table (either though the selection set or table)
// Use IDisplayTable because it accounts for joins, querydefs, etc.
// IDisplayTable is implemented by FeatureLayers and StandaloneTables.
//
IDisplayTable displayTable = m_listDisplayTable[cboInputData.SelectedIndex] as IDisplayTable;
ICursor cursor;
if (chkUseSelection.Checked)
{
ISelectionSet selSet;
selSet = displayTable.DisplaySelectionSet;
selSet.Search(null, false, out cursor);
}
else
{
cursor = displayTable.SearchDisplayTable(null, false);
}
// Setup NAClassLoader and Load Locations
INAClassLoader2 naClassLoader = new NAClassLoader() as INAClassLoader2;
naClassLoader.Initialize(naContext, naDataset.Name, cursor);
// Avoid loading network locations onto non-traversable portions of elements
INALocator3 locator = naContext.Locator as INALocator3;
locator.ExcludeRestrictedElements = true;
locator.CacheRestrictedElements(naContext);
int rowsIn = 0;
int rowsLocated = 0;
naClassLoader.Load(cursor, null, ref rowsIn, ref rowsLocated);
return(true);
}
return(false);
}
private void miAddItem_Click(object sender, System.EventArgs e)
{
//可以双击该项来编辑属性
//只为新项填充initDefaultValues方法中的默认值和自动生成的名称值。
IMapControl3 mapControl = (IMapControl3)axMapControl1.Object;
IEngineNAWindowCategory2 activeCategory = m_naWindow.ActiveCategory as IEngineNAWindowCategory2;
IDataLayer pDataLayer = activeCategory.DataLayer;
// 在类中创建一个新行并填充并初始默认值
ITable table = pDataLayer as ITable;
IRow row = table.CreateRow();
IRowSubtypes rowSubtypes = row as IRowSubtypes;
rowSubtypes.InitDefaultValues();
// 自动生成显示名称
IFeatureLayer ipFeatureLayer = activeCategory.Layer as IFeatureLayer;
IStandaloneTable ipStandaloneTable = pDataLayer as IStandaloneTable;
string name = "";
if (ipFeatureLayer != null)
{
name = ipFeatureLayer.DisplayField;
}
else if (ipStandaloneTable != null)
{
name = ipStandaloneTable.DisplayField;
}
//如果显示字段为空字符串或不代表NaClass上的实际字段，则跳过自动生成
string currentName = "";
int fieldIndex = row.Fields.FindField(name);
if (fieldIndex >= 0)
{
currentName = row.get_Value(fieldIndex) as string;
if (currentName.Length <= 0)
{
row.set_Value(fieldIndex, "Item" + ++autogenInt);
}
}
INAClassDefinition naClassDef = activeCategory.NAClass.ClassDefinition;
if (naClassDef.Name == "OrderPairs")
{
fieldIndex = row.Fields.FindField("SecondOrderName");
if (fieldIndex >= 0)
{
string secondName = row.get_Value(fieldIndex) as string;
if (secondName.Length <= 0)
{
row.set_Value(fieldIndex, "Item" + ++autogenInt);
}
}
}
row.Store();
// 向naclass添加项
INAContextEdit contextEdit = m_naEnv.NAWindow.ActiveAnalysis.Context as INAContextEdit;
contextEdit.ContextChanged();
// 刷新 NAWindow 和屏幕界面
INALayer naLayer = m_naWindow.ActiveAnalysis;
mapControl.Refresh(esriViewDrawPhase.esriViewGeography, naLayer, mapControl.Extent);
m_naWindow.UpdateContent(m_naWindow.ActiveCategory);
}
private void addItemToolStripMenuItem_Click(object sender, EventArgs e)
{
IMapControl3 mapControl = (IMapControl3)axMapControl1.Object;
IEngineNAWindowCategory2 activeCategory = m_naWindow.ActiveCategory as IEngineNAWindowCategory2;
IDataLayer pDataLayer = activeCategory.DataLayer;
// In order to add an item, we need to create a new row in the class and populate it
// with the initial default values for that class.
ITable table = pDataLayer as ITable;
IRow row = table.CreateRow();
IRowSubtypes rowSubtypes = row as IRowSubtypes;
rowSubtypes.InitDefaultValues();
IFeatureLayer ipFeatureLayer = activeCategory.Layer as IFeatureLayer;
IStandaloneTable ipStandaloneTable = pDataLayer as IStandaloneTable;
string name = "";
if (ipFeatureLayer != null)
{
name = ipFeatureLayer.DisplayField;
}
else if (ipStandaloneTable != null)
{
name = ipStandaloneTable.DisplayField;
}
string currentName = "";
int fieldIndex = row.Fields.FindField(name);
if (fieldIndex >= 0)
{
currentName = row.get_Value(fieldIndex) as string;
if (currentName.Length <= 0)
{
row.set_Value(fieldIndex, "Item" + ++autogenInt);
}
}
INAClassDefinition naClassDef = activeCategory.NAClass.ClassDefinition;
if (naClassDef.Name == "OrderPairs")
{
fieldIndex = row.Fields.FindField("SecondOrderName");
if (fieldIndex >= 0)
{
string secondName = row.get_Value(fieldIndex) as string;
if (secondName.Length <= 0)
{
row.set_Value(fieldIndex, "Item" + ++autogenInt);
}
}
}
row.Store();
// notify that the context has changed because we have added an item to a NAClass within it
INAContextEdit contextEdit = m_naEnv.NAWindow.ActiveAnalysis.Context as INAContextEdit;
contextEdit.ContextChanged();
// refresh the NAWindow and the Screen
INALayer naLayer = m_naWindow.ActiveAnalysis;
mapControl.Refresh(esriViewDrawPhase.esriViewGeography, naLayer, mapControl.Extent);
m_naWindow.UpdateContent(m_naWindow.ActiveCategory);
}