日韩性视频-久久久蜜桃-www中文字幕-在线中文字幕av-亚洲欧美一区二区三区四区-撸久久-香蕉视频一区-久久无码精品丰满人妻-国产高潮av-激情福利社-日韩av网址大全-国产精品久久999-日本五十路在线-性欧美在线-久久99精品波多结衣一区-男女午夜免费视频-黑人极品ⅴideos精品欧美棵-人人妻人人澡人人爽精品欧美一区-日韩一区在线看-欧美a级在线免费观看

歡迎訪問 生活随笔!

生活随笔

當(dāng)前位置: 首頁 > 编程资源 > 编程问答 >内容正文

编程问答

feature改变属性表的值

發(fā)布時(shí)間:2024/7/5 编程问答 30 豆豆
生活随笔 收集整理的這篇文章主要介紹了 feature改变属性表的值 小編覺得挺不錯(cuò)的,現(xiàn)在分享給大家,幫大家做個(gè)參考.

聲名 內(nèi)容引用與:https://www.cnblogs.com/henyihanwobushi/archive/2013/03/07/2947275.html

?

首先一定要獲取Featureclass,利用Featureclass獲取IWorkspace和IWorkspaceEdit:

??????????????? IWorkspace workspace = ((IDataset)pFeatureClass).Workspace;
??????????????? IWorkspaceEdit workspaceEdit = workspace as IWorkspaceEdit;

然后開啟編輯狀態(tài):

??????????????? bool startEdit = workspaceEdit.IsBeingEdited();
??????????????? if (!startEdit)
??????????????? {
??????????????????? workspaceEdit.StartEditing(false);
??????????????? }
??????????????? workspaceEdit.StartEditOperation();

然后獲取IFeatureCursor和IFeature:

??????????????? pFeatureCursor = pFeatureClass.Search(pQueryFilter, false);

??????????????? //注意這里一定要為false,因?yàn)閔ttp://forums.arcgis.com/threads/45879-Cannot-call-Store-on-a-recycled-row-while-editing

??????????????? //如果為true可能會(huì)產(chǎn)生0x80040958的錯(cuò)誤
????????????? ? pFeature = pFeatureCursor.NextFeature();

然后用IFeature.set_Value()方法對(duì)Feature進(jìn)行屬性表值的修改:

???????????????? pFeature.set_Value(i, valueToSet);

修改完成,要用IFeature.store()方法保存:

????????????????pFeature.Store();

然后最好將Feature釋放掉,再進(jìn)行接下來的修改:

??????????????? System.Runtime.InteropServices.Marshal.ReleaseComObject(pFeature);
??????????????? pFeature = null;
??????????????? pFeature = pFeatureCursor.NextFeature();

接下來用IFeatureCursor.Flush():

??????????????? pFeatureCursor.Flush();
??????????????? System.Runtime.InteropServices.Marshal.ReleaseComObject(pFeatureCursor);

最后停止編輯狀態(tài):
??????????????? workspaceEdit.StopEditOperation();
??????????????? startEdit = workspaceEdit.IsBeingEdited();
??????????????? if (!startEdit)
??????????????? {
??????????????????? workspaceEdit.StopEditing(true);
??????????????? }

轉(zhuǎn)載于:https://www.cnblogs.com/baimy/p/9983059.html

總結(jié)

以上是生活随笔為你收集整理的feature改变属性表的值的全部?jī)?nèi)容,希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯(cuò),歡迎將生活随笔推薦給好友。