public bool Create(string sLayerName, esriGeometryType nGeometryType, baseFieldList pNewFields, bool bAddIntoMapContol = false)
{
if (m_axMapControl == null)
{
return(false);
}
m_nGeometryType = nGeometryType;
m_sMapPath = Global.GetWorkspacePath();
m_sLayerName = sLayerName;
bool bFileExisted = System.IO.File.Exists(m_sMapPath + "\\" + m_sLayerName + ".shp");
if (bFileExisted && MessageBox.Show("The file is already existed, and do you want to create new one?", "Select one", MessageBoxButtons.YesNo) == DialogResult.Yes)
{
System.IO.File.Delete(m_sMapPath + "\\" + m_sLayerName + ".shp");
System.IO.File.Delete(m_sMapPath + "\\" + m_sLayerName + ".dbf");
System.IO.File.Delete(m_sMapPath + "\\" + m_sLayerName + ".shx");
GeoBaseLib.RemoveLayer(m_axMapControl, m_sLayerName);
}
IWorkspaceFactory pWorkspaceFactory = new ShapefileWorkspaceFactoryClass();
IFeatureWorkspace pFWS = pWorkspaceFactory.OpenFromFile(m_sMapPath, 0) as IFeatureWorkspace;
m_pFeatureLayer = new FeatureLayerClass();
//If file existed, directly load
if (System.IO.File.Exists(m_sMapPath + "\\" + m_sLayerName + ".shp"))
{
m_pFeatureLayer.FeatureClass = pFWS.OpenFeatureClass(m_sLayerName);
m_pFeatureLayer.Name = m_pFeatureLayer.FeatureClass.AliasName;
if (bAddIntoMapContol && !GeoBaseLib.IsLayerExisted(m_axMapControl, m_sLayerName))
{
m_axMapControl.AddLayer(m_pFeatureLayer);
m_axMapControl.Refresh();
}
return(true);
}
try
{
IFields pFields = CreateFields(pNewFields);
//Create feature class
m_pFeatureLayer.FeatureClass = pFWS.CreateFeatureClass(m_sLayerName, pFields, null, null, esriFeatureType.esriFTSimple, "Shape", "");
m_pFeatureLayer.Name = m_sLayerName;
if (bAddIntoMapContol)
{
m_axMapControl.AddShapeFile(m_sMapPath, m_sLayerName + ".shp");
m_axMapControl.Refresh();
}
}
catch (Exception exception)
{
MessageBox.Show("Create \"" + m_sLayerName + "\" shapefile error:" + exception.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Stop);
}
return(true);
}
public bool AddFields(baseFieldList pNewFields)
{
if (m_pFeatureLayer == null || m_pFeatureLayer.FeatureClass == null || pNewFields.Count == 0)
{
return(false);
}
try
{
IFeatureClass fc = m_pFeatureLayer.FeatureClass;
IWorkspaceEdit w = (fc as IDataset).Workspace as IWorkspaceEdit;
for (int i = 0; i < pNewFields.Count; i++)
{
baseField pNewField = pNewFields.get_Element(i);
if (pNewField.strFieldName.Length == 0 || m_pFeatureLayer.FeatureClass.Fields.FindField(pNewField.strFieldName) != -1)
{
continue;
}
IField pField;
pField = new FieldClass();
IFieldEdit pFieldEdit;
pFieldEdit = pField as IFieldEdit;
pFieldEdit.Type_2 = pNewField.ftFieldType;
pFieldEdit.Name_2 = pNewField.strFieldName;
pFieldEdit.AliasName_2 = pNewField.strFieldAliasName;
if (pNewField.ftFieldType == esriFieldType.esriFieldTypeString)
{
pFieldEdit.Length_2 = pNewField.nFieldLen;
}
m_pFeatureLayer.FeatureClass.AddField(pField);
}
return(true);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
return(false);
}
IFields CreateFields(baseFieldList pNewFields)
{
IFields pFields = new FieldsClass();
IFieldsEdit fieldsEdit = pFields as IFieldsEdit;
//Shape Field
IField fd1 = new FieldClass();
IFieldEdit fde1 = fd1 as IFieldEdit;
fde1.Name_2 = "Shape";
fde1.Type_2 = esriFieldType.esriFieldTypeGeometry;
IGeometryDef pGeomDef = new GeometryDefClass();
IGeometryDefEdit pGeomDefEdit = pGeomDef as IGeometryDefEdit;
ISpatialReferenceFactory pSpatialReferenceFactory = new SpatialReferenceEnvironment();
pGeomDefEdit.GeometryType_2 = m_nGeometryType;
pGeomDefEdit.SpatialReference_2 = pSpatialReferenceFactory.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_WGS1984) as ISpatialReference;
fde1.GeometryDef_2 = pGeomDef;
fieldsEdit.AddField(fde1);
for (int i = 0; i < pNewFields.Count; i++)
{
baseField pNewField = pNewFields.get_Element(i);
IField pField;
pField = new FieldClass();
IFieldEdit pFieldEdit;
pFieldEdit = pField as IFieldEdit;
pFieldEdit.Type_2 = pNewField.ftFieldType;
pFieldEdit.Name_2 = pNewField.strFieldName;
pFieldEdit.AliasName_2 = pNewField.strFieldAliasName;
if (pNewField.ftFieldType == esriFieldType.esriFieldTypeString)
{
pFieldEdit.Length_2 = pNewField.nFieldLen;
}
fieldsEdit.AddField(pField);
}
return(pFields);
}
public static baseFieldList get_Fields(IFeature pFeature)
{
baseFieldList pFields = new baseFieldList();
if (pFeature == null)
{
return(null);
}
for (int i = 0; i < pFeature.Fields.FieldCount; i++)
{
IField pField = pFeature.Fields.get_Field(i);
if (GeoBaseLib.IsSysField(pField.Name))
{
continue;
}
baseField smField = new baseField();
smField.strFieldName = pField.Name;
smField.strFieldAliasName = pField.Name;
smField.ftFieldType = pField.Type;
smField.nFieldLen = pField.Length;
pFields.Add(smField);
}
return(pFields);
}
