delegation

问题 In a related post, I am having trouble connecting to a basicHttp endpoint and it seems that it is due to WCF impersonation issues when connecting to a downstream service. The funny thing is that it works fine when I replace the basicHttp WCF service with an ASMX web service. Both services use <identity impersonate="true" userName=".." password=".." /> from ASP.NET web.config file, but the ASMX service works while the basicHttp WCF service doesn't. Does this seem likely to be some sort if

问题 I'm used to using Objective-C protocols in my code; they're incredible for a lot of things. However, in C++ I'm not sure how to accomplish the same thing. Here's an example: Table view, which has a function setDelegate(Protocol *delegate) Delegate of class Class, but implementing the protocol 'Protocol' Delegate of class Class2, also implementing 'Protocol' setDelegate(objOfClass) and setDelegate(objOfClass2) are both valid In Obj-C this is simple enough, but I can't figure out how to do it

问题 What is the different in performance and the handling of these two different jQuery statements: Number One : $('#selector1, #selector2, .class1').on('click', function () { //stuff }); Number Two : $(document).on('click', '#selector1, #selector2, .class1', function () { //stuff }); I know that one does delegation and the other doesn't. But what does that mean? Don't both do some sort of action when you click on '#selector1, #selector2, .class1' ? In the end, isn't it the same? 回答1: Number One

问题 I've got two separate homemade applications that need to communicate among themselves. One is a frontend application (asp.net actually), the other is a backend interface to an accounting application. The backend interface was not created specifically for this frontend - it is a generic interface that many other applications use to integrate with our product. For the convenience of users we wish to provide a Windows Authentication in our frontend application. That means however that we need to

问题 I'm trying to transform one method call into another dynamically (at runtime). For instance, I'd like the following: [obj foo] to delegate to: [obj getAttribute: @"foo"] (I'd like to do this dynamically as I don't know ahead of time what those method names or attributes are going to be). I see that there's a hook into: - (id) forwardingTargetForSelector: (SEL) aSelector That only seems to work for delegation, though, I want to keep the object as "self" and transform the method arguments.

问题 My issue here is how to deal with security and a proper implementation of impersonation which will work from a client machine and authenticate properly to my IIS server which passes the still valid impersonation ticket along with the LDAP request. My System is an independent server running on my company intranet which hosts the domain controller, LDAP server, etc, and uses Kerberos protocol. System Info: IIS7 with Windows Auth and Impersonate on Windows 7 x64 Network Info: IIS 6, LDAP,

问题 I need to made available a library to some bundles. This library makes use of RMI, so it needs (as far as I know, at least) to use the system class loader in order to work (I tried to "osgi-fy" the library, which results in classcastexceptions at runtime). So what I did was to remove the dependencies from the bundles that use that library, compile them with the library included in the property jars.extra.classpath (in the build.properties of the eclipse project). Then I added org.osgi

问题 I'm really new using the NSCoding functionality, I'm trying to create persistence of data of an attributedString, particularly a UIColor that is passed through a delegate. I haven't found a tutorial that encodes values that are not declared and initialized in the same class in which the NSCoding protocol is conformed. I have the following code, which is the method that conforms to the protocol I created, and assigns the passed color value as an attribute to the attributedString. func

问题 OK so I have a page which has a listview on it. Inside the item template of the listview is a usercontrol. This usercontrol is trying to trigger an event so that the hosting page can listen to it. My problem is that the event is not being triggered as the handler is null. (ie. EditDateRateSelected is my handler and its null when debugging) protected void lnkEditDate_Click(object sender, EventArgs e) { if (EditDateRateSelected != null) EditDateRateSelected(Convert.ToDateTime(((LinkButton

问题 I'm trying to implement the delegation pattern on Swift. The process consists in a popover that is displayed from a UIMenuItem in a text selection on a textView. This popover is a TableViewController that contains some colors. When a cell (or color) is tapped, the selected text changes its color from black to the selected color. I have the following protocol in the sending class: protocol SelectedColorDelegate { func didSelectColorCell(color: UIColor) } Then in the sending class I created