public override void OnClick()
{
if (m_pCommand == null)
{
return;
}
(m_pCommand as GeoProperties.LayerPropertiesTool).CurLayer = _AppHk.MapControl.CustomProperty as ILayer;
// shduan 20110721 增加RasterLayer和RasterCatalog图层属性*************************
if (_AppHk.MapControl.CustomProperty is IFeatureLayer)
{
IFeatureLayer pFeatLayer = _AppHk.MapControl.CustomProperty as IFeatureLayer;
IFeatureLayerDefinition pFLDefinition = pFeatLayer as IFeatureLayerDefinition;
IFeatureClass pFeatClass = pFeatLayer.FeatureClass;
}
else if (_AppHk.MapControl.CustomProperty is IRasterLayer)
{
IRasterLayer pRasterLayer = _AppHk.MapControl.CustomProperty as IRasterLayer;
}
else if (_AppHk.MapControl.CustomProperty is IRasterCatalog)
{
IRasterCatalog pRC = _AppHk.MapControl.CustomProperty as IRasterCatalog;
}
//end ******************************************************************************
if (this.WriteLog)
{
Plugin.LogTable.Writelog("打开" + Message);//xisheng 2011.07.08 增加日志
}
m_pCommand.OnClick();
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
string selCity = comboBox1.SelectedItem.ToString();
IFeatureLayer lyrProVince = Utilities.GetLayerByName("省市_Mask", axMapControl1.Map) as IFeatureLayer;
if (selCity != "全国")
{
IFeatureClass featClsProvince = lyrProVince.FeatureClass;
IFeatureCursor feaCursor = null;
IQueryFilter queryFilter = new QueryFilterClass();
string whereClause = "[NAME] = '" + selCity + "'";
queryFilter.WhereClause = whereClause;
feaCursor = featClsProvince.Search(queryFilter, false);
IFeature pFeature = feaCursor.NextFeature();
if (pFeature != null)
{
Utilities.ZoomToFeature(pFeature, axMapControl1.Object as IMapControlDefault);
IFeatureLayerDefinition lyrDef = lyrProVince as IFeatureLayerDefinition;
lyrDef.DefinitionExpression = whereClause;
lyrProVince.Visible = true;
}
}
else
{
axMapControl1.Map.ClipGeometry = null;
axMapControl1.Extent = axMapControl1.FullExtent;
lyrProVince.Visible = false;
}
}
public static IArray Identity(IFeatureClass featureclass, IGeometry geometry, string whereClause)
{
if (geometry == null)
{
return(null);
}
if (geometry.GeometryType == esriGeometryType.esriGeometryPoint)
{
ITopologicalOperator topop = geometry as ITopologicalOperator;
double buffer = 0.0;
if (double.TryParse(System.Configuration.ConfigurationManager.AppSettings["BUFFER"], out buffer))
{
geometry = topop.Buffer(buffer);
}
}
IFeatureLayer featureLayer = new FeatureLayerClass();
featureLayer.FeatureClass = featureclass;
IFeatureLayerDefinition featureLayerDefinition = featureLayer as IFeatureLayerDefinition;
featureLayerDefinition.DefinitionExpression = whereClause;
IFeatureLayer newfeatureLayer = featureLayerDefinition.CreateSelectionLayer(featureclass.AliasName, false, null, whereClause);
IIdentify identify = featureLayer as IIdentify;
IArray identifyObjs = identify.Identify(geometry);
return(identifyObjs);
}
public void ApplyDefinisionQuery(string Field, string Condition, string Value)
{
try
{
IFeatureLayer FocusedLayer = axMapControl1.ActiveView.FocusMap.get_Layer(comboBox2.SelectedIndex) as IFeatureLayer;
IFeatureLayerDefinition DefinisionQuery = FocusedLayer as IFeatureLayerDefinition;
string ConditionToBeApplyed;
char FirstCharOfValue = comboBox9.Text[0];
int FirstNumAsci = 48;
int SecondNumAsci = 57;
if (FirstCharOfValue >= FirstNumAsci && FirstCharOfValue <= SecondNumAsci)
{
ConditionToBeApplyed = Field + Condition + Value;
}
else
{
string ValueinQoutes = "'" + Value + "'";
ConditionToBeApplyed = Field + Condition + ValueinQoutes;
}
DefinisionQuery.DefinitionExpression = ConditionToBeApplyed;
axMapControl1.ActiveView.Refresh();
}
catch
{
MessageBox.Show("Error");
}
}
/// <summary>
/// Occurs when this command is clicked
/// </summary>
public override void OnClick()
{
try
{
//ILayer player = ClsGlobal.GetSelectedLayer(m_hookHelper);
IBasicMap map = null;
ILayer layer = null;
ClsGlobal.GetSelectedMapAndLayer(m_pTocCtl, ref map, ref layer);
if (map == null || layer == null)
{
return;
}
IFeatureLayer pFLayer = (IFeatureLayer)layer;
IFeatureLayerDefinition pFLDef = (IFeatureLayerDefinition)pFLayer;
IFeatureSelection pFSel = (IFeatureSelection)pFLayer;
ISelectionSet pSSet = pFSel.SelectionSet;
if (pSSet.Count > 0)
{
IFeatureLayer pSelFL = pFLDef.CreateSelectionLayer(layer.Name + "Selection", true, null, null);
map.AddLayer(pSelFL);
IActiveView activiView = map as IActiveView;
activiView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
m_pTocCtl.Update();
}
}
catch (Exception ex)
{
;
}
}
/// <summary>
/// 根据指定的查询条件查询获取IFeature
/// </summary>
/// <param name="myIFeatureLayer">IFeatureLayer扩展对象</param>
/// <param name="strWhereClause">查询条件</param>
/// <param name="blResetLayerDefinition">是否重置LayerDefinition进行查询</param>
/// <returns>IFeature列表</returns>
public static List <IFeature> GetLstIFeature(this IFeatureLayer myIFeatureLayer, string strWhereClause, bool blResetLayerDefinition)
{
if (myIFeatureLayer == null)
{
return(new List <IFeature>());
}
IFeatureLayerDefinition myIFeatureLayerDefinition = myIFeatureLayer as IFeatureLayerDefinition;
string strOldIFeatureLayerDefinition = myIFeatureLayerDefinition.DefinitionExpression;
if (blResetLayerDefinition)
{
myIFeatureLayerDefinition.DefinitionExpression = "";
}
IQueryFilter myIQueryFilter = new QueryFilterClass();
myIQueryFilter.WhereClause = strWhereClause;
List <IFeature> lstIFeature = new List <IFeature>();
IFeatureCursor myIFeatureCursor = myIFeatureLayer.Search(myIQueryFilter, false);
for (IFeature eachIFeature = myIFeatureCursor.NextFeature(); null != eachIFeature; eachIFeature = myIFeatureCursor.NextFeature())
{
lstIFeature.Add(eachIFeature);
}
if (blResetLayerDefinition)
{
myIFeatureLayerDefinition.DefinitionExpression = strOldIFeatureLayerDefinition;
}
return(lstIFeature);
}
/// <summary>
/// 点击事件
/// </summary>
public override void OnClick()
{
DataEditCommon.g_pAxMapControl.CurrentTool = null;
IMap pMap = m_hookHelper.FocusMap;
UID puid = new UID();
puid.Value = "{40A9E885-5533-11d0-98BE-00805F7CED21}";//IFeatureLayer
IEnumLayer enumLayer = pMap.get_Layers(puid, true);
enumLayer.Reset();
ILayer player;
player = enumLayer.Next();
IFeatureLayer featureLayer = null;
while (player != null)
{
featureLayer = player as IFeatureLayer;
IFeatureLayerDefinition featureLayerDef = featureLayer as IFeatureLayerDefinition;
string sWhereClause = "";//定义筛选条件
featureLayerDef.DefinitionExpression = sWhereClause;
player = enumLayer.Next();
}
m_hookHelper.ActiveView.Extent = m_hookHelper.ActiveView.FullExtent;
m_hookHelper.ActiveView.Refresh();
}
private void 打开属性表ToolStripMenuItem_Click(object sender, EventArgs e)
{
ITable table = _toccSelectedLayer as ITable;
if (table != null)
{
if (_attributeForm == null || _attributeForm.IsDisposed)
{
_attributeForm = new AttributeForm();
_attributeForm.FeatureLocation += _attributeForm_FeatureLocation;
}
else
{
_attributeForm.FeatureLocation -= _attributeForm_FeatureLocation;
_attributeForm.FeatureLocation += _attributeForm_FeatureLocation;
_attributeForm.Activate();//之前已打开，则给予焦点，置顶。
}
if (!_attributeForm.Visible)
{
_attributeForm.Show(this);
}
IFeatureLayerDefinition featureLyrDef = _toccSelectedLayer as IFeatureLayerDefinition;
string whereClause = featureLyrDef?.DefinitionExpression;
_attributeForm.LoadAttribute(_toccSelectedLayer as IFeatureLayer, whereClause);
}
}
private void btncreat_Click(object sender, EventArgs e)
{
try
{
ILayer player = null;
for (int j = 0; j < pMapControl.Map.LayerCount; j++)
{
if (cmblayer.SelectedItem.ToString() == pMapControl.Map.Layer[j].Name)
{
player = pMapControl.Map.Layer[j];
break;
}
}
IFeatureLayer pFLayer = (IFeatureLayer)player;
IFeatureLayerDefinition pFLDef = (IFeatureLayerDefinition)pFLayer;
IFeatureSelection pFSel = (IFeatureSelection)pFLayer;
ISelectionSet pSSet = pFSel.SelectionSet;
if (pSSet.Count > 0)
{
IFeatureLayer pSelFL = pFLDef.CreateSelectionLayer(player.Name + "Selection", true, null, null);
pMapControl.Map.AddLayer(pSelFL);
}
else
{
MessageBox.Show("没有选中的对象！");
}
this.Close();
}
catch (System.Exception ex)
{
MessageBox.Show(ex.ToString(), "错误！", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
this.Close();
}
private void ChangeLayersDef()
{
for (int i = 0; i < axMapControl.Map.LayerCount; i++)
{
IFeatureLayer featLay = axMapControl.Map.get_Layer(i) as IFeatureLayer;
IFeatureLayerDefinition featLayDef = featLay as IFeatureLayerDefinition;
featLayDef.DefinitionExpression = "FromDate<='" + comboBoxItem.Items[comboBoxItem.SelectedIndex].ToString() + "' and ToDate>'" + comboBoxItem.Items[comboBoxItem.SelectedIndex].ToString() + "'";
}
axMapControl.ActiveView.Refresh();
}
private void fillDefQueryProps(IFeatureLayer flyr)
{
IFeatureLayerDefinition flyrdef = flyr as IFeatureLayerDefinition;
if (flyrdef != null)
{
if (flyrdef.DefinitionExpression != "")
{
defquery = flyrdef.DefinitionExpression;
}
}
}
/// <summary>
/// 根据制定的查询条件获取IFeature
/// </summary>
/// <param name="myIFeatureLayer">IFeatureLayer扩展对象</param>
/// <param name="myIGeometry">查询地理要素</param>
/// <param name="strWhereClause">查询条件</param>
/// <param name="_EsriSpatialRelEnum">查询的图元和查询地理要素的空间关系</param>
/// <param name="blReSetLayerDefinition">是否重置LayerDefinition进行查询</param>
/// <returns>IFeature列表</returns>
public static List <IFeature> GetLstIFeature(this IFeatureLayer myIFeatureLayer, IGeometry myIGeometry, string strWhereClause, esriSpatialRelEnum myEsriSpatialRelEnum, bool blReSetLayerDefinition)
{
if (myIFeatureLayer == null)
{
return(new List <IFeature>());
}
if (myEsriSpatialRelEnum == esriSpatialRelEnum.esriSpatialRelUndefined)
{
switch (myIFeatureLayer.FeatureClass.ShapeType)
{
case esriGeometryType.esriGeometryPoint:
myEsriSpatialRelEnum = esriSpatialRelEnum.esriSpatialRelContains;
break;
case esriGeometryType.esriGeometryPolyline:
myEsriSpatialRelEnum = esriSpatialRelEnum.esriSpatialRelCrosses;
break;
case esriGeometryType.esriGeometryPolygon:
myEsriSpatialRelEnum = esriSpatialRelEnum.esriSpatialRelIntersects;
break;
}
}
ISpatialFilter myISpatialFilter = new SpatialFilterClass();
if (!string.IsNullOrEmpty(strWhereClause))
{
myISpatialFilter.WhereClause = strWhereClause;
}
myISpatialFilter.Geometry = myIGeometry;
myISpatialFilter.SpatialRel = myEsriSpatialRelEnum;
myISpatialFilter.GeometryField = myIFeatureLayer.FeatureClass.ShapeFieldName;
IFeatureLayerDefinition myIFeatureLayerDefinition = myIFeatureLayer as IFeatureLayerDefinition;
string strOldIFeatureLayerDefinition = myIFeatureLayerDefinition.DefinitionExpression;
if (blReSetLayerDefinition)
{
myIFeatureLayerDefinition.DefinitionExpression = "";
}
IFeatureCursor myIFeatureCursor = myIFeatureLayer.Search(myISpatialFilter, false);
List <IFeature> lstIFeature = new List <IFeature>();
for (IFeature eachIFeature = myIFeatureCursor.NextFeature(); null != eachIFeature; eachIFeature = myIFeatureCursor.NextFeature())
{
lstIFeature.Add(eachIFeature);
}
if (blReSetLayerDefinition)
{
myIFeatureLayerDefinition.DefinitionExpression = strOldIFeatureLayerDefinition;
}
return(lstIFeature);
}
public uctrDefinitionQuery(ILayer pLayer, string Layerid)
{
try
{
LayerID = Layerid;
m_pLayer = pLayer;
m_pCurrentLayer = (IFeatureLayer)m_pLayer;
m_pFeatureLayerDefinition = (IFeatureLayerDefinition)m_pCurrentLayer;
InitializeComponent();
}
catch { }
}
/// <summary>
/// 给定过滤条件，显示符合条件的纪录
/// </summary>
/// <params name="pMap">IMap</params>
/// <params name="p2DLayer">ILayer</params>
/// <params name="strFilter">sql语句where 后面的条件</params>
public static void Show_IsVisiable(IMap pMap, ILayer p2DLayer, string strFilter)
{
try
{
IFeatureLayer p2DFeatureLayer = (IFeatureLayer)p2DLayer;
IFeatureLayerDefinition p2DFeatureLayerDefinition = (IFeatureLayerDefinition)p2DFeatureLayer;
p2DFeatureLayerDefinition.DefinitionExpression = strFilter;
IActiveView pActive = (IActiveView)pMap;
pActive.PartialRefresh(esriViewDrawPhase.esriViewBackground, null, null);
}
catch (Exception ex)
{
}
}
public void RemoveDefinisionQuery(int LayerIndex)
{
try
{
IFeatureLayer FocusedLayer = axMapControl1.ActiveView.FocusMap.get_Layer(LayerIndex) as IFeatureLayer;
IFeatureLayerDefinition DefinisionQuery = FocusedLayer as IFeatureLayerDefinition;
DefinisionQuery.DefinitionExpression = "";
axMapControl1.ActiveView.Refresh();
}
catch
{
}
}
private void ChangeLayersDef()
{
for (int i = 0; i < Mapcontrol.Map.LayerCount; i++)
{
//cyf 20110706 add
ILayer mLayer = Mapcontrol.Map.get_Layer(i);
if (mLayer is IGroupLayer)
{
ICompositeLayer pComlayer = mLayer as ICompositeLayer;
for (int j = 0; j < pComlayer.Count; j++)
{
IFeatureLayer featLay = pComlayer.get_Layer(j) as IFeatureLayer;
if (featLay == null)
{
continue;
}
if (!(featLay.FeatureClass as IDataset).Name.EndsWith("_GOH"))
{
continue;
}
if (featLay.FeatureClass.Fields.FindField("FromDate") < 0 || featLay.FeatureClass.Fields.FindField("ToDate") < 0)
{
continue;
}
IFeatureLayerDefinition featLayDef = featLay as IFeatureLayerDefinition;
featLayDef.DefinitionExpression = "FromDate<='" + comboBoxItem.Items[comboBoxItem.SelectedIndex].ToString() + "' and ToDate>'" + comboBoxItem.Items[comboBoxItem.SelectedIndex].ToString() + "'";
}
}//end
else
{
IFeatureLayer featLay = Mapcontrol.Map.get_Layer(i) as IFeatureLayer;
if (featLay == null)
{
continue;
}
if (!(featLay.FeatureClass as IDataset).Name.EndsWith("_GOH"))
{
continue;
}
if (featLay.FeatureClass.Fields.FindField("FromDate") < 0 || featLay.FeatureClass.Fields.FindField("ToDate") < 0)
{
continue;
}
IFeatureLayerDefinition featLayDef = featLay as IFeatureLayerDefinition;
featLayDef.DefinitionExpression = "FromDate<='" + comboBoxItem.Items[comboBoxItem.SelectedIndex].ToString() + "' and ToDate>'" + comboBoxItem.Items[comboBoxItem.SelectedIndex].ToString() + "'";
}
}
Mapcontrol.ActiveView.Refresh();
}
/// <summary>
/// 以SQL where 条件创建IFeatureLayer
/// </summary>
/// <param name="layer"></param>
/// <param name="newLayerName"></param>
/// <param name="whereClause"></param>
/// <returns></returns>
public static IFeatureLayer createFilterLayer(IFeatureLayer layer, string newLayerName, string whereClause)
{
IQueryFilter qf = new QueryFilterClass();
qf.WhereClause = whereClause;
IFeatureSelection fSelection = layer as IFeatureSelection;
fSelection.SelectFeatures(qf, esriSelectionResultEnum.esriSelectionResultNew, false);
IFeatureLayerDefinition layer_def = fSelection as IFeatureLayerDefinition;
IFeatureLayer layer_filtered = layer_def.CreateSelectionLayer(newLayerName, true, null, null);
return(layer_filtered);
}
/// <summary>
/// Occurs when this command is clicked
/// </summary>
public override void OnClick()
{
// TODO: Add LHSBBaseCommand.OnClick implementation
//get the count of layers in this current subject
int countofLayers = m_hookHelper.FocusMap.LayerCount;
//build a loop to act our action
for (int i = 0; i < countofLayers; i++)
{
ILayer lyr = m_hookHelper.FocusMap.get_Layer(i);
IFeatureLayerDefinition fLyrDef = lyr as IFeatureLayerDefinition;
fLyrDef.DefinitionExpression = "ÈË¿Ú>= 50";
m_hookHelper.ActiveView.Refresh();
}
}
private void button3_Click(object sender, EventArgs e)
{
if (comboBox2.Text == "")
{
MessageBox.Show("Please select a layer from the comboBox firstly!");
return;
}
if (textBox2.Text != "")
{
ILayer sheyakhaLayer = axMapControl1.ActiveView.FocusMap.get_Layer(comboBox2.SelectedIndex);
IFeatureLayer fsheyakhalayer = sheyakhaLayer as FeatureLayer;
IFeatureLayerDefinition dlayer = fsheyakhalayer as IFeatureLayerDefinition;
dlayer.DefinitionExpression = textBox2.Text;
axMapControl1.Refresh();
}
}
/// <summary>
/// 根据拉框范围选择要素
/// </summary>
/// <params name="pGeometry"></params>
private void GetFeaturesByShape(IGeometry pGeometry)
{
IMap pMap = m_hookHelper.FocusMap;
UID puid = new UID();
puid.Value = "{40A9E885-5533-11d0-98BE-00805F7CED21}";//IFeatureLayer
IEnumLayer enumLayer = pMap.get_Layers(puid, true);
enumLayer.Reset();
ILayer player;
player = enumLayer.Next();
IFeatureLayer featureLayer = null;
while (player != null)
{
featureLayer = player as IFeatureLayer;
string layerName = featureLayer.Name;
string feaSelectSet = GetLayerFeatureSelectSet(pGeometry, featureLayer);
//新建 IFeatureLayerDefinition 接口实例
IFeatureLayerDefinition featureLayerDef = featureLayer as IFeatureLayerDefinition;
string sWhereClause;
if (feaSelectSet == "")
{
///如果当前图层无选中要素情况处理：获得所有要素OID，
///让该图层所有要素不可见
string sLyrAllFeatureIDs = GetLayerAllFeatures(featureLayer);
if (sLyrAllFeatureIDs == "")
{
player = enumLayer.Next();
continue;
}
else
{
sWhereClause = featureLayer.FeatureClass.OIDFieldName + " Not In (" + sLyrAllFeatureIDs + " )";
}
}
else
{
sWhereClause = featureLayer.FeatureClass.OIDFieldName + " In (" + feaSelectSet + " )";//定义筛选条件
}
featureLayerDef.DefinitionExpression = sWhereClause;
player = enumLayer.Next();
}
}
private void InitialFrm(List <IFeatureLayer> layerList)
{
foreach (IFeatureLayer aFeatLay in layerList)
{
IFeatureSelection featSel = aFeatLay as IFeatureSelection;
int fdIndex = aFeatLay.FeatureClass.Fields.FindField("SourceOID");
if (fdIndex == -1)
{
continue;
}
IEnumIDs pEnumIDs = featSel.SelectionSet.IDs;
int ID = pEnumIDs.Next();
StringBuilder sb = new StringBuilder();
while (ID != -1)
{
IFeature pFeat = aFeatLay.FeatureClass.GetFeature(ID);
if (sb.Length != 0)
{
sb.Append(",");
}
sb.Append(pFeat.get_Value(fdIndex).ToString());
ID = pEnumIDs.Next();
}
IQueryFilter queryFilter = new QueryFilterClass();
queryFilter.WhereClause = "SourceOID in (" + sb.ToString() + ")";
IFeatureLayerDefinition featLayDef = aFeatLay as IFeatureLayerDefinition;
featLayDef.DefinitionExpression = "";
featSel.SelectFeatures(queryFilter, esriSelectionResultEnum.esriSelectionResultNew, false);
featSel.SelectionChanged();
IFeatureLayer selFeatLay = featLayDef.CreateSelectionLayer(aFeatLay.Name, true, "", "");
IGeoFeatureLayer pGeoFeatureLayer = aFeatLay as IGeoFeatureLayer;
if (pGeoFeatureLayer != null)
{
(selFeatLay as IGeoFeatureLayer).Renderer = pGeoFeatureLayer.Renderer;
}
this.axMapControl.Map.AddLayer(selFeatLay);
}
SysCommon.Gis.ModGisPub.LayersCompose(this.axMapControl.Object as IMapControlDefault);
InitialSliderItem(this.axMapControl.Object as IMapControlDefault);
InitialbarMap();
}
private IFeature ZoomtoProvince(string cityName) //Form1中的帮助函数
{
IFeatureLayer lyrCity = Utilities.GetLayerByName("县区_Mask", axMapControl1.Map) as IFeatureLayer;
IFeatureLayer lyrProVince = Utilities.GetLayerByName("省市_Mask", axMapControl1.Map) as IFeatureLayer;
string cityCode = string.Empty;
#region 获取县区的行政代码
IFeatureClass featCls = lyrCity.FeatureClass;
IFields pFields = featCls.Fields;
int index = pFields.FindField("ADCODE99");
//查找要素
IFeatureCursor pFeatCursor = null;
IQueryFilter pQueryFilter = new QueryFilterClass();
string whereClause = "[NAME99] like '" + cityName + "*'";
pQueryFilter.WhereClause = whereClause;
pFeatCursor = featCls.Search(pQueryFilter, false);
IFeature pFeat = pFeatCursor.NextFeature();
if (pFeat != null)
{
cityCode = pFeat.get_Value(index).ToString().Substring(0, 2) + "0000";
IFeatureLayerDefinition pFeatDef = (IFeatureLayerDefinition)lyrCity;
pFeatDef.DefinitionExpression = whereClause;
lyrCity.Visible = true;
}
#endregion
//缩放到省份
if (cityCode != string.Empty)
{
IFeatureClass featClsProvince = lyrProVince.FeatureClass;
IFeatureCursor featCursor = null;
IQueryFilter queryFilter = new QueryFilterClass();
whereClause = "[ADCODE99] = " + cityCode;
queryFilter.WhereClause = whereClause;
featCursor = featClsProvince.Search(queryFilter, false);
IFeature pFeature = featCursor.NextFeature();
if (pFeature != null)
{
Utilities.ZoomToFeature(pFeature, axMapControl1.Object as IMapControlDefault);
IFeatureLayerDefinition lyrDef = (IFeatureLayerDefinition)lyrProVince;
lyrDef.DefinitionExpression = whereClause;
lyrProVince.Visible = true;
}
}
return(pFeat);
}
/// <summary>
/// Gets the number of rows, belonging to a given layer, filtered by the layer.
/// </summary>
/// <param name="layer">Esri layer of the TOC</param>
/// <returns>Number of rows or Null if the layer is invalid or not filtered.</returns>
public static int?GetFilteredLayerRowCount(IFeatureLayer layer)
{
IDisplayTable displayTable = (IDisplayTable)layer;
if ((layer.Valid) && (displayTable != null))
{
IFeatureLayerDefinition layerDefinition = layer as IFeatureLayerDefinition;
string filter = layerDefinition?.DefinitionExpression;
if (!string.IsNullOrEmpty(filter))
{
IQueryFilter queryFilter = new QueryFilterClass();
queryFilter.WhereClause = filter;
queryFilter.AddField(layer.FeatureClass.OIDFieldName);
return(displayTable.DisplayTable.RowCount(queryFilter));
}
}
return(null);
}
private void btnOK_Click(object sender, EventArgs e)
{
//刷新地图
if (m_MapControl != null)
{
ILayer m_layer = GetLayerByName(m_MapControl, m_pCurrentLayer.Name);
if (m_layer == null)
{
MessageBox.Show("在地图中未找到选择图层，请重新选择查看图层！", "提示");
return;
}
IFeatureLayer pFeatureLayer = (IFeatureLayer)m_layer;
m_pFeatureLayerDefinition = (IFeatureLayerDefinition)pFeatureLayer;
m_pFeatureLayerDefinition.DefinitionExpression = RichTxtCondition.Text.Trim();
m_MapControl.Refresh(esriViewDrawPhase.esriViewBackground, m_layer, null);
}
this.Close();
}
private void txtLayerName_Click(object sender, EventArgs e)
{
Plugin.SelectLayerByTree frm = new Plugin.SelectLayerByTree(1);
SysCommon.ModSysSetting.CopyLayerTreeXmlFromDataBase(Plugin.ModuleCommon.TmpWorkSpace, frm._LayerTreePath);
if (frm.ShowDialog() == DialogResult.OK)
{
if (frm.m_NodeKey.Trim() != "")
{
m_pCurrentLayer = new FeatureLayerClass();
IFeatureClass pFeatureClass = null;
pFeatureClass = SysCommon.ModSysSetting.GetFeatureClassByNodeKey(Plugin.ModuleCommon.TmpWorkSpace, frm._LayerTreePath, frm.m_NodeKey);
if (pFeatureClass == null)
{
return;
}
m_pCurrentLayer.FeatureClass = pFeatureClass;
LayerID = frm.m_NodeKey;
}
if (m_pCurrentLayer.FeatureClass != null)
{
txtLayerName.Text = frm.m_NodeText;
m_pCurrentLayer.Name = frm.m_NodeText;// xisheng 20111122 自定义查询无名称BUG修改
}
}
else
{
return;
}
ILayer pLayer = GetLayerByName(m_MapControl, m_pCurrentLayer.Name);
if (pLayer == null)
{
return;
}
IFeatureLayer pFeatureLayer = (IFeatureLayer)pLayer;
IFeatureLayerDefinition pDefinition = (IFeatureLayerDefinition)pFeatureLayer;
if (pDefinition.DefinitionExpression != null || pDefinition.DefinitionExpression != "")
{
RichTxtCondition.Text = pDefinition.DefinitionExpression;
}
}
//空间过滤图层的要素显示
private void filterLyrBySpatial(ILayer inLayer, IGeometry inGeometry)
{
IFeatureLayer pFL = inLayer as IFeatureLayer;
if (pFL == null)
{
return;
}
ISpatialFilter pSF = new SpatialFilterClass();
pSF.Geometry = (inGeometry as ITopologicalOperator).Boundary;
pSF.SpatialRel = esriSpatialRelEnum.esriSpatialRelContains;
//pSF.SpatialRelDescription = "****T****";
IFeatureCursor pFC = pFL.Search(pSF, false);
if (pFC == null)
{
return;
}
string lyrDef = pFL.FeatureClass.OIDFieldName + " IN(";
IFeature pFeature = pFC.NextFeature();
while (pFeature != null)
{
lyrDef += pFeature.OID.ToString() + ",";
pFeature = pFC.NextFeature();
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(pFC);
pFC = null;
if (lyrDef.EndsWith("IN("))
{
return;
}
lyrDef = lyrDef.Substring(0, lyrDef.Length - 1);
lyrDef += ")";
IFeatureLayerDefinition pFLD = pFL as IFeatureLayerDefinition;
pFLD.DefinitionExpression = lyrDef;
}
private void button20_Click_1(object sender, EventArgs e)
{
try
{
if (textBox1.Text != "")
{
ILayer sheyakhaLayer = axMapControl1.ActiveView.FocusMap.get_Layer(layerIndex);
IFeatureLayer fsheyakhalayer = sheyakhaLayer as FeatureLayer;
IFeatureLayerDefinition dlayer = fsheyakhalayer as IFeatureLayerDefinition;
dlayer.DefinitionExpression = textBox1.Text;
axMapControl1.Refresh();
}
this.Close();
f1.Show();
}
catch (Exception)
{
MessageBox.Show("There was an error with the expression. \nGeneral function failure [" + Layer + "] \nSyntax error (missing operator) in query expression '" + textBox1.Text.ToString() + "'.");
}
}
/// <summary>
/// 创建新图层
/// </summary>
/// <param name="saveFile">保存路径</param>
/// <returns></returns>
private IFeatureLayer CreateNewLayer(string saveFile)
{
string saveName = Path.GetFileNameWithoutExtension(saveFile);
IFeatureLayerDefinition featureLayerDefinition = oldFeatureLayer as IFeatureLayerDefinition;
if (featureLayerDefinition == null)
{
return(null);
}
//从要素图层的选择集中创建新要素图层
IFeatureLayer selectionLayer = featureLayerDefinition.CreateSelectionLayer(saveName, true, null, null);
//打开要素工作空间
IFeatureWorkspace pFeatureWorkspace = (IFeatureWorkspace)FeatureInfoClass.GetShapefileWorkspace(saveFile);
if (pFeatureWorkspace == null || selectionLayer == null)
{
return(null);
}
IFeatureLayer copyFeatureLayer = CopyOldFeatureLayerWithSelectFiled(pFeatureWorkspace, selectionLayer, saveName);
return(copyFeatureLayer);
}
/// <summary>
/// 得到指定图层所有的IFeature
/// </summary>
/// <param name="myIFeatureLayer">IFeatureLayer扩展对象</param>
/// <param name="blReSetLayerDefinition">是否重置LayerDefinition进行查询</param>
/// <returns>IFeature列表</returns>
public static List <IFeature> GetAllLstIFeature(this IFeatureLayer myIFeatureLayer, bool blReSetLayerDefinition)
{
if (myIFeatureLayer == null)
{
return(new List <IFeature>());
}
IFeatureLayerDefinition myIFeatureLayerDefinition = myIFeatureLayer as IFeatureLayerDefinition;
string strOldIFeatureLayerDefinition = myIFeatureLayerDefinition.DefinitionExpression;
if (blReSetLayerDefinition)
{
myIFeatureLayerDefinition.DefinitionExpression = "";
}
IFeatureCursor myIFeatureCursor = myIFeatureLayer.Search(null, false);
List <IFeature> lstIFeature = new List <IFeature>();
for (IFeature eachIFeature = myIFeatureCursor.NextFeature(); eachIFeature != null; eachIFeature = myIFeatureCursor.NextFeature())
{
lstIFeature.Add(eachIFeature);
}
myIFeatureLayerDefinition.DefinitionExpression = strOldIFeatureLayerDefinition;
return(lstIFeature);
}
private static LayerInfoViewModel LoadLayerInfoFromArcMap(IFeatureLayer layer)
{
// tablename
IDataset dataset = (IDataset)layer.FeatureClass;
string tableName = ArcobjWorkspaceUtils.GetTableName(dataset);
IFeatureLayerDefinition layerDefinition = layer as IFeatureLayerDefinition;
string filter = layerDefinition?.DefinitionExpression;
int?[] rowCounts =
{
ArcmapLayerUtils.GetFilteredLayerRowCount(layer),
ArcmapLayerUtils.GetLayerRowCount(layer)
};
return(new LayerInfoViewModel
{
Title = layer.Name,
Layer = layer,
TableName = tableName,
Filter = filter,
RowCount = string.Join(" / ", rowCounts.Where(item => item != null)),
});
}
public static void LayerDefinitionUpdate(ref IFeatureLayerDefinition layerDefinition, ref IFeatureLayer flayerHistorico, string condicao)
{
layerDefinition = (IFeatureLayerDefinition)flayerHistorico;
layerDefinition.DefinitionExpression = condicao;
}
