parent-child

问题 I am pretty new to the WinApi calls although familiar with VBA. What I am trying to do is to hook to a child class SysTreeView32 of VBE window (Project Explorer TreeView). I would like to expand/collapse the tree view elements by modifying the registry keys (or alternatively sending the mouse clicks (mouse_event) although I prefer the first option). I can find the Excel Main Window by using this code: Declare Function FindWindow Lib "user32" Alias "FindWindowA" _ (ByVal lpClassName As String,

问题 I have this jQuery: $(this).parent().parent().find(".license_tooltip").stop(true, true).fadeIn(200); The $(this) object is nested within two div s like this: <div> <div> <a href="">$(this) object</a> </div> <div> <a href="">object to fade in</a> </div> </div> Can someone point me in the right direction to making my jQuery more streamlined? The structure presented above is replicated multiple times, so using classes and IDs is impossible. 回答1: You can use a class (or any other selectable

问题 I have a non-modal child form which opens up from a parent form. I need to center the child form to its parent form. I have set property of child form to CenterParent and tried this: Form2 f = new Form2(); f.Show(this); but to no avail. This works with modal form, but not so with non-modal forms. Any simple solution, or need I go through all that mathematical calculation to fix its position to center? 回答1: I'm afraid StartPosition.CenterParent is only good for modal dialogs ( .ShowDialog ).

问题 let's say I have a markup like this: <div id="foo"> ... <span id="moo"> ... </span> ... </div> and I want to select #moo. why $('#foo').find('span') works, but $('span', $('#foo')); doesn't ? 回答1: You can use any one these [starting from the fastest] $("#moo") > $("#foo #moo") > $("div#foo span#moo") > $("#foo span") > $("#foo > #moo") Take a look 回答2: Actually, $('#id', this); would select #id at any descendant level, not just the immediate child. Try this instead: $(this).children('#id');

问题 Like the title says, I've got a Child form being shown with it's TopLevel property set to False and I am unable to click a MaskedTextBox control that it contains (in order to bring focus to it). I can bring focus to it by using TAB on the keyboard though. The child form contains other regular TextBox controls and these I can click to focus with no problems, although they also exhibit some odd behavior: for example if I've got a value in the Textbox and I try to drag-click from the end of the

问题 I have the following markup: <div class="foo"> <ul> <li>one</li> <li>two</li> </ul> <ul> <li>three</li> </ul> <ul> <li>four</li> </ul> </div> I wish to style "one" and "three". However, the markup could also be: <div class="foo"> <ul> <li>one</li> <li>two</li> <li>three</li> </ul> <ul> <li>four</li> </ul> </div> I've tried using the following CSS: .foo li:nth-child(1), .foo li:nth-child(3) { color:red; } However, as expected, this is styling the first child of each ul . (Demo: http://jsfiddle

问题 In my app, I have to switch between two layouts frequently. The error is happening in the layout posted below. When my layout is called the first time, there isn't occurring any error and everything's fine. When I then call a different layout (a blank one) and afterwards call my layout a second time, it gives me the following error: > FATAL EXCEPTION: main > java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first. My

问题 SQL Server 2008. I have a parent row with pk id 1. While blocking all other DB users (this is a cleanup operation so resource contention is not an issue), I would like to insert a new row, then take all of the child rows and change their fk column to the new row. With the below DDL for example, I would like to insert a new row and give all of the #chi.parid values a value of '3' so they would essentially now belong to the new row so the old one can be deleted. Help! create table #par ( parid

问题 Without long delay, here the code which I have no clue why it does what it does: #include <iostream> class A { private: void print() { std::cout << "A.print() called" << std::endl; }; public: template<typename Foo> class B; //NOTE: no friend! public: A(); B<double>* bd; B<int>* bi; }; template<typename Foo> class A::B{ A* callback; public: B(A* a):callback(a){}; void print() { callback->print(); }; // Why is this working ??? }; A::A():bd(new B<double>(this)),bi(new B<int>(this)){} int main

问题 I need to call a function located in the parent component and make the call from the child component in Flex 3. Is there a way to access functions in the parent component from the child component? I know I can dispatch an event in the child and add a listener in the parent to call the function, but just wanted to know if could also directly call a parent function from a child. Thanks 回答1: You can use parentApplication For example... if i have a main.mxml that calls a component we'll call