copy

Usage of the “copy” property attribute to maintain an immutable NSString

自闭症网瘾萝莉.ら 提交于 2019-12-06 01:48:57
问题 I am very new to iOS development and programming in Objective-C. I have been doing the exercises on the app dev library. This is the current exercise that I am trying to understand. 3. Test what happens if you set a mutable string as the person’s first name, then mutate that string before calling your modified sayHello method. Change the NSString property declarations by adding the copy attribute and test again. I attempt to do this however, the NSString that I modify does in fact change

How can we copy the column data of one DataTable to another, even if there are different column names between DataTables?

痞子三分冷 提交于 2019-12-06 01:04:48
I have two DataTables. First is DataTable NameAddressPhones = new DataTable(); with Three columns Name, Address and PhoneNo .But I only want two columns Name and Address data so I want to copy those columns (with data) to the new DataTable. DataTable NameAddress = new DataTable(); For that I do foreach (DataRow sourcerow in NameAddressPhones.Rows) { DataRow destRow = NameAddress.NewRow(); foreach (string colname in columns) { destRow[colname] = sourcerow[colname]; } NameAddress.Rows.Add(destRow); } I clear the NameAddressPhones(first) DataTable every time there are new records inserted in the

Visual Studio 2010 Build Fails to File Copy Error

半城伤御伤魂 提交于 2019-12-06 00:42:21
问题 I'm building a project in Visual Studio 2010 and the build fails because it cannot copy the assemblyname.dll file from obj to bin folder. The exact error message is: Error 7 Unable to copy file "obj\Debug\AssemblyName.dll" to "bin\AssemblyName.dll". The requested operation cannot be performed on a file with a user-mapped section open. I think this is because the previous file in bin-folder is not accessible. When I try to delete the file manually, I get an error "The action can't be completed

Can't get MSBuild Community Task RegexReplace to work

旧城冷巷雨未停 提交于 2019-12-06 00:39:35
I'm trying to copy a bunch of files whose names begin with the prefix DR__ , but the copies must have that prefix removed. That is, DR__foo must be copied as foo . I'm trying this, which is based in the example provided in the documentation (the .chm): <Target Name="CopyAuxiliaryFiles"> <MakeDir Directories="$(TargetDir)Parameters" Condition="!Exists('$(TargetDir)Parameters')" /> <ItemGroup> <ContextVisionParameterFiles Include="$(SolutionDir)CVParameters\DR__*" /> </ItemGroup> <Message Text="Files to copy and rename: @(ContextVisionParameterFiles)"/> <RegexReplace Input="@

cannot copy CSV into postgreSQL table : timestamp column won't accept the empty string

戏子无情 提交于 2019-12-05 23:19:38
问题 I want to import a CSV file into version 9.2 but the CSV file has double-quote double-quote in the final column position to represent a NULL value: "2","1001","9","2","0","0","130","","2012-10-22 09:33:07.073000000","" which is mapped to a column of type Timestamp. postgreSQL doesn't like the "". I've tried to set the NULL option but maybe I'm not doing it correctly? I've tried NULL as '"" and NULL '' and NULL as '' and NULL "" but without success; here's my command: COPY SCH.DEPTS FROM 'H:

Remote linux server to remote linux server large sparse files copy - How To?

我是研究僧i 提交于 2019-12-05 22:53:50
I have two twins CentOS 5.4 servers with VMware Server installed on each. What is the most reliable and fast method for copying virtual machines files from one server to the other, assuming that I always use sparse file for my vmware virtual machines? The vm's files are a pain to copy since they are very large (50 GB) but since they are sparse files I think something can be done to improve the speed of the copy. If you want to copy large data quickly, rsync over SSH is not for you. As running an rsync daemon for quick one-shot copying is also overkill, yer olde tar and nc do the trick as

Lotus Notes 7 - copy / move docs. ( parent & response docs ) without changing the UNID ?

僤鯓⒐⒋嵵緔 提交于 2019-12-05 22:40:06
I have 2 databases : let say dbA and dbB. Actually, dbB is a ''child'' database of dbA, because the forms/views/frameset/etc that it contains they all are also in dbA. I want now, to copy from a view ( let say vwA ) from dbA some 8K docs to the same view ( vwA ) from dbB. THese 8k contains both parent and child docs, which in dbA are listing OK, with @Text(@UniqueDocumentID). I just made a test, copy one parent doc and its response, and pasted in the 2nd database, but unfortunately the connection between the 2 docs isn't made... I guess the UNID had changed... Is there any solutions? Thanks

Fastest way to cast int to UInt32 bitwise?

好久不见. 提交于 2019-12-05 21:38:22
问题 i have some low level image/texture operations where 32-bit colors are stored as UInt32 or int and i need a really fast bitwise conversion between the two. e.g. int color = -2451337; //exception UInt32 cu = (UInt32)color; any ideas? thanks and regards 回答1: int color = -2451337; unchecked { uint color2 = (uint)color; // color2 = 4292515959 } 回答2: BitConverter.ToUInt32(BitConverter.GetBytes(-2451337), 0) 回答3: Those using a language like VB, which don't have a really convenient way of disabling

Copy and Paste Entire Row

天涯浪子 提交于 2019-12-05 21:15:58
Function: I am working on a small project where I need to search each cell in a column for the word "Unknown" if it contains that word then copy that entire row on to a new sheet. Problem: I am getting the "Object doesn't support this property method." error. I believe it is somewhere within the copy statement (not destination). It so simple but I cannot seem to solve this issue. Sub CheckRows() Dim b As Range Dim SrchRng As Range Set b = ActiveWorkbook.Sheets("Sheet 2").Range("A1") Set SrchRng = ActiveWorkbook.Sheets("Sheet 1").Range("G1") Do While SrchRng.Value <> "" If SrchRng.Value =

Hide Copy and Deselect UITextView options after copying all text

风格不统一 提交于 2019-12-05 19:58:22
I am working on a messaging app. I want to give a "copy" option to the user when they enter their message in a UITextView . When the user presses the "copy" button, it is copying the message, but the popover shows again and again, and the text is still selectable. I don't know how to control this. I have pasted some source code for your reference. I wrote a sub class for UITextView . - (BOOL)canPerformAction:(SEL)action withSender:(id)sender { NSLog(@"Action : %@", NSStringFromSelector(action)); NSLog(@"Sender : %@", sender); if (action == @selector(copy:)) { [self selectAll:self]; //return