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可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a DataTable which has some rows and I am using the select to filter the rows to get a collection of DataRows which I then loop through using foreach and add it to another DataTable, but it is giving me the error "This Row already belongs to another table". Here is the code: DataTable dt = (DataTable)Session["dtAllOrders"]; DataTable dtSpecificOrders = new DataTable(); DataRow[] orderRows = dt.Select("CustomerID = 2"); foreach (DataRow dr in orderRows) { dtSpecificOrders.Rows.Add(dr); //Error thrown here. } 回答1: You need to create a

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Spring provides the org.springframework.ws.client.core.support.WebServiceGatewaySupport class, which is according to the Spring documentation a convenient super class for application classes that need Web service access. The class is apparently designed for extending . It is abstract so it cannot be instantiated as a bean, so I cannot use composition rather than inheritance . However, when I inherit the class, Spring starts complaining like that: [WARN] org.springframework.framework.CglibAopProxy - Unable to proxy interface-implementing

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have nginx in a docker container, and a nodejs webapp in another docker container. The nodejs server is reachable from the host server on port 8080. The nginx docker container is listening to port 80 (will do the certificate later, first this base must be working). And now I want a subdomain to be forwarded to this 8080 nodejs app. lets say app1.example.com From outside I can reach the app by te server ip (or hostname) and port 8080 but not on app1.example.com. And it does work on app1.example.com:8080 (I have opened up port 8080 on the

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: How can I convert NSDateFormatted string Apr 18, 2014 10:34:19 AM to 2014-04-18T17:34:19 ? I have tried the below but it returns a nil NSDate pointer. Can anyone here please help me out. Thanks. NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init]; [dateFormatter setDateFormat:@"yyyy'-'MM'-'dd'T'HH':'mm':'ss"]; NSDate *date = [dateFormatter dateFromString:@"Apr 18, 2014 10:34:19 AM"]; // Error nil NSLog(@"date: %@", date); 回答1: You need to use 2 date formatters, one for parsing the other for displaying: NSDateFormatter

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I need to be able to find an item in a list (an item in this case being a dict ) based on some value inside that dict . The structure of the list I need to process looks like this: [ { 'title': 'some value', 'value': 123.4, 'id': 'an id' }, { 'title': 'another title', 'value': 567.8, 'id': 'another id' }, { 'title': 'last title', 'value': 901.2, 'id': 'yet another id' } ] Caveats: title and value can be any value (and the same), id would be unique. I need to be able to get a dict from this list based on a unique id . I know this can be done

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a question. I have the following source xml file: Source xml: <Container> <DataHeader> <c id="b" value="TAG" /> <c id="g" value="Info" /> </DataHeader> <Data> <Rows> <r no="1"> <c id="b" value="uid1" uid="T.A.uid1" /> <c id="g" value="uid1|tag1|attr1|somevalue1" /> </r> <r no="1"> <c id="b" value="uid1" uid="T.A.uid1" /> <c id="g" value="uid1|tag1|attr2|somevalue2" /> </r> <r no="2"> <c id="b" value="uid1" uid="T.A.uid1" /> <c id="g" value="uid1|tag2|attr3|somevalue3" /> </r> <r no="10"> <c id="b" value="uid2" uid="T.A.uid2" /> <c id=

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I need to copy a sheet from one workbook to another. I am trying with the below code, but it is not working: ISheet newSheet = wb.GetSheetAt(0).CopySheet("WeeklyReport"); string filePath = "billing_template2.xlsx"; XSSFWorkbook billingWorkbook; using (var fs = new FileStream(filePath, FileMode.Open, FileAccess.Read)) { billingWorkbook = new XSSFWorkbook(fs); } billingWorkbook.Add(newSheet); where wb is the source workbook and billingWorkbook is my destination workbook. Note: My destination workbook already had a sheet. I need to add the

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have what seems a simple requirement, but I can't seem to achieve the desired result. My dataframes are rather large, so I will just give a screenshot: What I want is: if ps2c$ps == present2$pn then ps2c$sf == present2$sf . If it is not clear, for every ps2c$ps there is a present2$pn (present2 is just the mean data). 回答1: You don't supply test data, but something like the following might work: ps2c$sf <- present2$sf[match(ps2c$ps, present2$pn)] 文章来源: Create column based on another dataframe

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Ok, so Pretty much i am trying to send keystrokes of a string from and edit box to the active window and the enter key after. does anyone here know a working method of doing this in delphi 7? I have been searching for about an hour and a half for this now and i cant seem to find anything and the stuff I have found is ether for newer versions of delphi, or it just doesn't work. I have tried TTouchKeyboard but that's only for delphi 10 and newer. 回答1: I've used this to send text to an annoying popup 3G application with no interface, its a hack

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am working on the Layout of my main activity with Android Studio ( lowest API is 15 ), and have defined a few XML Buttons on it. The idea of the program is to edit a list of words by adding to, displaying, and clearing it with a set of buttons. ( There is an EditText for adding, but that's not important for the question ). But with the idea of high cohesion in mind, I have defined this list and the methods that manipulate it in another plain class called WordList ( which still extends Activity ), and so when trying to invoke the onClick