instance

问题 For example, doing something like this: foreach (DataRow row in data.Rows) { Person newPerson = new Person() { Id = row.Field<int>("Id"), Name = row.Field<string>("Name"), LastName = row.Field<string>("LastName"), DateOfBirth = row.Field<DateTime>("DateOfBirth") }; people.Add(newPerson); } Setting a breakpoint to an individual assignation is not possible, the breakpoint is set to the entire block. If I want to see specifically where my code is breaking, I have to use: foreach (DataRow row in

问题 I am using an instance class from a third-party DLL, and I need to do a deep copy on a particular instance. The class is not marked as Serializable , and therefore I can not use this suggested method using BinaryFormatter. How can I get a deep copy of this object without using serialization? 回答1: I've been using Copyable with great success. It uses reflection under the hood. It is open-sourced. Be sure to read Limitations and pitfalls to see if you can use it. 回答2: One suggestion is to use

问题 I am trying to keep my HashMap values when I navigate to another activity and return. This is the code I have for now. The HashMap works and is able to grab and save the data from the EditText in the view. However as soon as I leave from the activity and return, the HashMap is reinitialized to empty -> {} I have looked at documentation and it seems this is the correct way of ensuring that a variable data is persisted. However it does not work. please let me know what could be the issue:

问题 I am using Allen Browne's method for creating and managing multiple instances of a form. I am stuck on how to reference controls or properties on a specific instance of the form from a VBA Module. Here is how I open a new instance: 'Purpose: Open an independent instance of form frmMasterRecord. Dim frm As Form 'Housekeeping myFilter = Trim("" & myFilter) 'Open a new instance, show it, and set a caption. Set frm = New Form_frmMasterRecord frm.ServerFilter = myFilter frm.ServerFilterByForm =

问题 Our OpenLink Virtuoso Universal Server at the Ubuntu 12.04.2 LTS. When I run ./virtusoo-start.sh , the service does not startup. and I got the message. Starting Virtuoso instance in [database] The VDBMS server process terminated prematurely after opening the database. *** *** ERROR: Could not start this Virtuoso Instance. *** 21:57:32 ./virtuoso() [0x5eb045] 21:57:32 ./virtuoso() [0x5f3c64] 21:57:32 ./virtuoso() [0x5f4aba] 21:57:32 ./virtuoso() [0x8eb806] 21:57:32 ./virtuoso() [0x8f776a] 21

问题 I'm trying to instantiate a fragment "sending" a custom object array list, but I can't find the exact way to do it. I think I may have to use Serializable or Parcelable (as seen in another answer), but I'm not sure how to implement it even after reading that answer. Can someone help me? Thanks in advance. Code to instantiate Fragment f = new Fragment(); ArrayList<IconsCategory> category = Utils.getCategory(); ArrayList<IconItem> icons = category.getIconsArray(); f = IconsFragment.newInstance

问题 I have a class Robot , which should contain method Move(...) . Robot is an instance class, you can have more robots working. I thought about making Move static method, because all robots use same logic when moving somewhere. Robots contains information about their position, therefore I need to pass instance of Robot to Move method. There is also parameter Direction , which is enum (West, East, ...). What is better and why? public static Move(ref Robot rob, Direction dir) { rob.Position = ...

问题 I have a gui application I put text into text box1, text box2,………… text box70 ,and then click on the pushButton , The function return_text () in the module_b.py be called. Now I can call one instance by lambda1 function and use it in class_b , but I can not call 70 instances when I click on the pushbutton . **A- I want add lineEdit_1 , lineEdit_2 ….. lineEdit_70 into lambda method in main.py **B- I want to edit (return_text (self, txt)) and (table2 (self, txt) ) in the module_b.py to print

问题 My program needs to monitor multiple locations, but trigger the same code for each location. As a single FileSystemWatcher can't monitor multiple locations, but is it possible to create multiple instances of it and pass in a folder path for each? I can't hard code each FileSystemWatcher as more and more locations will need to be added in time and this needs to be done by the end users, as it is highly impractical for me to have to manually hard code a new FileSystemWatcher each time. So my

问题 In SQL Express bootstrapper there is a file called SqlExpressChk.exe used to check the version of the installed SQL Express. Unfortunately I've read that this file is looking for instance name SQLEXPRESS. Does anybody know how to force SqlExpressChk to look for another instance name ? I don't install SQL Server with default instance name. Thanks. 回答1: There isn't a way. SqlExpressChk.exe is limited to only the default instance name, SQLEXPRESS. It won't detect other named instances as