C# + ArcGIS10.0创建shapefile，为什么汉字不能写入到.dbf属性文件里(请看代码)
本帖最后由 zhenggary 于 2012-11-29 09:42:41 编辑 各位大虾，请帮帮我，这个问题困扰我好多天了。
问题：在程序中，生成shapefile,但是在生成的.dbf属性文件里，汉字（pInsertFeatureBuffer.Value[3] = "中国";）没有被写入。怎样才能把汉字写入到.dbf文件里。
环境：VS2010 + ESRI AirGIS10.0
代码如下：
using System;
using ESRI.ArcGIS;
using ESRI.ArcGIS.DataSourcesFile;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Geodatabase;
using ESRI.ArcGIS.Geometry;
namespace CSV2ShapeFile
{
class Program
{
static void Main(string[] args)
{
// License验证
if (CheckOutLicenses(esriLicenseProductCode.esriLicenseProductCodeArcInfo) != ESRI.ArcGIS.esriSystem.esriLicenseStatus.esriLicenseCheckedOut)
{
// don't get the license
Console.WriteLine("Don't get the license,failed!");
}
const string strFolder = @"D:\ZG\Mapwork\"; //目标文件夹
const string strName = "myshapefile"; //文件名
const string strShapeFieldName = "Shape";
//Open the folder to contain the shapefile as a workspace
IFeatureWorkspace pFWS;
IWorkspaceFactory2 pWorkspaceFactory = new ShapefileWorkspaceFactory() as IWorkspaceFactory2;
pFWS = pWorkspaceFactory.OpenFromFile(strFolder, 0) as IFeatureWorkspace;
//Set up a simple fields collection
IFields pFields = new FieldsClass(); //字段
IFieldsEdit pFieldsEdit = pFields as IFieldsEdit;
//Make the shape field
//it will need a geometry definition, with a spatial reference
IField pField = new FieldClass();
IFieldEdit pFieldEdit = pField as IFieldEdit;
pFieldEdit.Name_2 = strShapeFieldName;
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry;
IGeometryDef pGeometryDef = new GeometryDef();
IGeometryDefEdit pGeometryDefEdit = pGeometryDef as IGeometryDefEdit;
pGeometryDefEdit.GeometryType_2 = esriGeometryType.esriGeometryPoint;
pGeometryDefEdit.SpatialReference_2 = new UnknownCoordinateSystem() as ISpatialReference;
pFieldEdit.GeometryDef_2 = pGeometryDef;
pFieldsEdit.AddField(pField);
//Add No field
pField = new FieldClass();
pFieldEdit = pField as IFieldEdit;
pFieldEdit.Length_2 = 30;
pFieldEdit.Name_2 = "No";
pFieldEdit.AliasName_2 = "AliasNo";
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
pFieldsEdit.AddField(pField);
//Add Address field
pField = new FieldClass();
pFieldEdit = pField as IFieldEdit;
pFieldEdit.Length_2 = 30;
pFieldEdit.Name_2 = "Address";
pFieldEdit.AliasName_2 = "AliasAddress";
pFieldEdit.Editable_2 = false;
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
pFieldsEdit.AddField(pField);
//Add LONGITUDE field
pField = new FieldClass();
pFieldEdit = pField as IFieldEdit;
pFieldEdit.Length_2 = 30;
pFieldEdit.Name_2 = "X";
pFieldEdit.AliasName_2 = "AliasX";
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
pFieldsEdit.AddField(pField);
//Add LATITUDE field
pField = new FieldClass();
pFieldEdit = pField as IFieldEdit;
pFieldEdit.Length_2 = 30;
pFieldEdit.Name_2 = "Y";
pFieldEdit.AliasName_2 = "AliasY";
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
pFieldsEdit.AddField(pField);
//Create the shapefile
Console.WriteLine("Start Create shapefile...");
IFeatureClass featureClass = pFWS.CreateFeatureClass(strName, pFields, null, null, esriFeatureType.esriFTSimple, "Shape", "");
//
IFeatureCursor pInsertFeatureCursor;
pInsertFeatureCursor = featureClass.Insert(true);
IFeatureBuffer pInsertFeatureBuffer;
pInsertFeatureBuffer = featureClass.CreateFeatureBuffer();
pInsertFeatureBuffer.Value[2] = "116023";
pInsertFeatureBuffer.Value[3] = "中国";
pInsertFeatureBuffer.Value[4] = "316023";
pInsertFeatureBuffer.Value[5] = "416023";
IPoint pPoint = new Point();
pPoint.X = Convert.ToInt32(pInsertFeatureBuffer.Value[4].ToString()) / 3600000;
pPoint.Y = Convert.ToInt32(pInsertFeatureBuffer.Value[5].ToString()) / 3600000;
pInsertFeatureBuffer.Shape = pPoint;
//InsertFeature
pInsertFeatureCursor.InsertFeature(pInsertFeatureBuffer);
//
pInsertFeatureCursor.Flush();
Console.WriteLine("End Create shapefile");
Console.ReadLine();
}
// License验证
public static esriLicenseStatus CheckOutLicenses(esriLicenseProductCode productCode)
{
RuntimeManager.Bind(ProductCode.EngineOrDesktop);
esriLicenseStatus licenseStatus;
licenseStatus = esriLicenseStatus.esriLicenseUnavailable;
AoInitialize m_pAoInitialize = new AoInitialize();
if (m_pAoInitialize == null)
return licenseStatus;
//Determine if the product is available
licenseStatus = m_pAoInitialize.IsProductCodeAvailable(productCode);
if (licenseStatus == esriLicenseStatus.esriLicenseAvailable)
licenseStatus = m_pAoInitialize.Initialize(productCode);
return licenseStatus;
}
}
}
[最优解释]
首先 ：开始编辑前 要启动编辑 （如arcmap）StartEdit（） 结束编辑后 调用 StopEdit（）
字段赋值 使用 pTarFeatureBuffer.set_Value(int 字段索,引object 字段值 )
private static bool StartEdit(IFeatureClass trgFC)
{
IDataset pDataset = (IDataset)trgFC;
IWorkspace pWorkspace = pDataset.Workspace;
if (pWorkspace == null) return false;
IFeatureWorkspace pFeatureWorkspace = pWorkspace as IFeatureWorkspace;
IWorkspaceEdit pWE = pFeatureWorkspace as IWorkspaceEdit;
if (!pWE.IsBeingEdited())
{
IVersionedObject pVersioned = pDataset as IVersionedObject;
if (pVersioned == null
[其他解释]
加分等待高人指点。。。
[其他解释]
!pVersioned.IsRegisteredAsVersioned)
{
IMultiuserWorkspaceEdit pMulti = pFeatureWorkspace as IMultiuserWorkspaceEdit;
if (pMulti != null)
{
if (pMulti.SupportsMultiuserEditSessionMode(esriMultiuserEditSessionMode.esriMESMNonVersioned))
{
try
{
pMulti.StartMultiuserEditing(esriMultiuserEditSessionMode.esriMESMNonVersioned);
}
catch (Exception)
{
pWE.StartEditing(false);
}
}
else
{
pWE.StartEditing(false);
}
}
else
{
pWE.StartEditing(false);
}
}
else
{
pWE.StartEditing(false);
}
if (pWE.IsBeingEdited() == false) return false;
}
pWE.StartEditOperation();
return true;
}
private static void StopEdit(IFeatureClass trgFC, bool isSave)
{
IDataset pDataset = (IDataset)trgFC;
IWorkspace pWorkspace = pDataset.Workspace;
if (pWorkspace == null) return;
IWorkspaceEdit pWE = null;
IFeatureWorkspace pFeatureWorkspace = pWorkspace as IFeatureWorkspace;
pWE = pFeatureWorkspace as IWorkspaceEdit;
if (pWE.IsBeingEdited())
{
pWE.StopEditOperation();
pWE.StopEditing(isSave); //保存慢呀！
}
}
[其他解释]
追加说明：
我提供的代码会生成三个文件（.dbf, .shx, .shp）。同样的代码逻辑，几年以前是VB6+ArcGIS9.2,插入的汉字和字母等都可以正常显示在.dbf属性文件里，现在升级到C#+ArcGIS10.0后，字母可以正常显示，汉字却不能显示了。
请各位高手结合我的代码，给诊断病情。等待各位高手出诊。。。