04 2011 档案

转ArcEngine数据删除几种方法和性能比较
摘要：1、IFeatureCursor 游标查询后，遍历删除2、更新游标删除IFeatureCursor.DeleteFeature()3、ITable.DeleteSearchedRows删除4、 IDataset.Workspace.ExecuteSQL一、几种删除方法代码1.查询结果中删除 private void Delete1(IFeatureClass PFeatureclass) { IQueryFilter pQueryFilter = new QueryFilterClass(); pQueryFilter.WhereClause = "objectID<=&quo 阅读全文
posted @ 2011-04-29 10:33 WillWayer 阅读(1140) 评论(0) 推荐(0)
【20110420-01】AE中对现有FeatureClass添加字段的问题
摘要：现在需要对已有的要素图层添加字段，尝试以下代码:IFeatureClass pFc= ((IFeatureLayer)lyrRec).FeatureClass; IFieldsEdit fldsE = pFc.Fields as IFieldsEdit;IField fld = new FieldClass();IFieldEdit2 fldE = fld as IFieldEdit2;fldE.Type_2 = esriFieldType.esriFieldTypeString;fldE.Name_2 = "XXX";ic.AddField(fld);int idTest 阅读全文
posted @ 2011-04-21 01:14 WillWayer 阅读(1202) 评论(0) 推荐(0)
ArcGIS Server9.3程序升级到ArcGIS Server9.3.1的问题 中出现 Sys.Res.rypeRegisteredTwice 为空或不是对象
摘要：Map.aspx中引用JS文件：Web.jsWeb.js代码如下:Type.registerNamespace("MapClient.MapOp");function AddLayer{ .....}久久找不到原因 看到很多资料//在 web.config-->system.web配置节添加<httpHandlers> <remove verb="*" path="*.asmx"/> <add verb="*" path="*.asmx" validate=& 阅读全文
posted @ 2011-04-08 17:32 WillWayer 阅读(409) 评论(0) 推荐(0)