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  • Replace Entity Framework object

    - by majkinetor
    In MVC app, I am having this big object that is used in classic view/edit/create pattern. When user edits the object I save it as: public bool SetMyObject(MyObject newObject) { MyObject current = GetObjectById(newObject.Id); current.Prop1 = newObject.Prop1 ... current.PropN = newObject.PropN db.SaveChanges(); } MyObject is pretty big so I am wondering is there any better way to do this, not involving per-property assignments. For instance something along the lines db.MyObject.UpdateObject(current, tnew). Ty.

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  • Are reference attributes destroyed when class is destroyed in C++?

    - by Genba
    Suppose I have a C++ class with an attribute that is a reference: class ClassB { ClassA &ref; public: ClassB(ClassA &_ref); } Of course, the constructor is defined this way: ClassB::ClassB(ClassA &_ref) : ref(_ref) { /* ... */ } My question is: When an instance of class 'ClassB' is destroyed, is the object referenced by 'ClassB::ref' also destroyed?

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  • How to make a link button visible after another button has been clicked in asp.net(vb) in button_c

    - by Parth
    How to make a link button visible after another button has been clicked in asp.net(vb) in button_click() it says error as "Object reference not set to an instance of an object." i've done this in my code Protected Sub InsertButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Dim receipt As LinkButton = FormView1.FindControl("LinkButton1") ' receipt.Enabled = "true" ' receipt.EnableTheming = "true" ' receipt.EnableViewState = "true" receipt.Visible = "true" End Sub

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  • HTTP triggers for Postgres

    - by HeineyBehinds
    I'm trying to write a Postgres trigger such that when a configuration table is updated, a backend component is notified and can handle the change. I know that Oracle has the concept of a web/HTTP trigger, where you can execute an HTTP GET from the Oracle instance itself to a URL that can then handle the request at the application layer. I'm wondering if Postgres (v. 9.0.5) has the same feature, or comes with anything similar (and, subsequently, how to set it up/configure it)?

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  • Is it possible to control Visual Studio exception handling from the debugged code itself?

    - by mark
    Dear ladies and sirs. I am wondering if it is possible to control the Visual Studio exception handling options from the code itself. For instance, I would like to turn off stopping on FCE for a certain piece of code, that generates many FCE, however, I would like it to be active for all the other code. Is it possible to do it from code? Something like this: visualStudio.DoNotStopOnFCE() try { // some code generating many FCE } catch {} visualStudio.StopOnFCE() Thanks.

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  • General question about Ruby Eigenclass/Singleton

    - by Dex
    module MyModule def my_method; 'hello'; end end class MyClass class << self include MyModule end end MyClass.my_method # => "hello I'm unsure why "include MyModule" needs to be in the eigenclass in order to be called using just MyClass. Why can't I go: X = MyClass.new X.my_method How is this type of pattern useful if I can't call it from an instance?

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  • Reflection: different ways to retrieve property value

    - by jules
    I'm retrieving an IEnumerable list of properties via following code: BindingFlags bindingFlag = BindingFlags.Instance | BindingFlags.Public; var dataProperties = typeof(myParentObject).GetProperties(bindingFlag); Then I'm iterating through the list and retrieving the value for each property. I've come across two different approaches to doing this, and just wondered what the difference is between them: 1) object propertyValue = property.GetGetMethod().Invoke(myObject, null); 2) object propertValue = property.GetValue(myObject, null)

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  • How to get MS Word templates directory for another user?

    - by Steve
    I'm using the following code to get the path where Word stores its templates: WordTemplatePath:=WordApp.Options.DefaultFilePath[$00000002]; The problem is that this returns the path for the actual, logged-in user. Is there a way to get the path for another user of the same Windows instance? I need it so my installer program can install the templates used by my program for other users as well.

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  • What happens to thread as onDestroy is called when device is rotated

    - by Lakshmie
    I would like to know as to what will happen to the thread which has been created by an activity and the device is rotated. I have observed that the onDestroy method is called when this happens. Will the thread be killed too? If the thread is not killed, how can I reassociate the thread with the activity as a new instance of the activity is created on rotation. Thanks, Lakshmie

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  • How to change sync settings through Android API?

    - by Kyle Slattery
    Is there a way to change the sync settings of a Gmail account programmatically with an Android app? For instance, I'd like to enable/disable syncing of a Gmail account from my app, without the user having to do anything. I took a look at AccountManager, but that doesn't seem to be the right place to look.

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  • Given an array of arguments, how do I send those arguments to a particular function in Ruby?

    - by Steven Xu
    Forgive the beginner question, but say I have an array: a = [1,2,3] And a function somewhere; let's say it's an instance function: class Ilike def turtles(*args) puts args.inspect end end How do I invoke Ilike.turtles with a as if I were calling (Ilike.new).turtles(1,2,3). I'm familiar with send, but this doesn't seem to translate an array into an argument list. A parallel of what I'm looking for is the Javascript apply, which is equivalent to call but converts the array into an argument list.

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  • Mod_rewrite on all website images

    - by Esteve Camps
    I'm designing an image repository. I want to uncouple the filename from the image html link. For instance: image in filesystem is called images/items/12543.jpg HTML is <img src="images/car.jpg" /> Does anyone strongly discourages me to rewrite all image requests using PHP so when retrieving images/car.jpg, Apache really replies content from images/items/12543.jpg? I don't know if I may get performance problems.

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  • static NSStrings in Objective-C

    - by MikeyWard
    I frequently see a code snippet like this in class instance methods: static NSString *myString = @"This is a string."; I can't seem to figure out why this works. Is this simply the objc equivalent of a #define that's limited to the method's scope? I (think) I understand the static nature of the variable, but more specifically about NSStrings, why isn't it being alloc'd, init'd? Thanks~

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  • How to deduce wsdl for web service under tomcat

    - by xain
    Hi, I developed a ws using netbeans using annotations: @WebService MyWS() public class MyWS { @WebMethod(operationName="MyWebMethod") public MyWebMethod(@WebParam(name="str") StringHolder str){ ... } } The applicaction's context root is /WSTests Based on this information how can I deduce what's the .wsdl associated with my project to test it with - for instance - soapui ? Thanks

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  • How to change the way that timer schedules in TimerTask?

    - by Judking
    Here is the code snippet: Timer t = new Timer(); TimerTask task = new TimerTask() { @Override public void run() { //change the timer rate of scheduleAtFixedRate here } }; //every 10 sec t.scheduleAtFixedRate(task, new Date(), 10000); Could anyone tell me how to change the rate of timer to t.scheduleAtFixedRate(task, new Date(), 30000) in method run from TimerTask instance? Thanks a lot!

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