parent

问题 I'm using Qt 5 and C++ and I want to force some of my child windows to have their own task bar entries. Right now, I am able to create parentless QWidgets and use the signal-slot mechanism to close those windows when a main window (QMainWindow) is closed. However as I add more and more parents and childs this whole signal-slot technique will get tedious (won't it?) and I am sure that Qt already has a feature I can use for this. I've seen this; Primary and Secondary Windows section talks about

问题 I have trouble with a task to find a parent of a specific node in a binary search tree. The solution should be straightforward, but I don't know why my code is not working...I tried different approaches and also searched on the web for any solutions but found nothing. I appreciate any help!! typedef struct Treenode{ int key; struct Treenode* lChild; struct Treenode* rChild; }node; node * getParent(node *root, int key){ if (root == NULL) return NULL; else if (root->rChild->key == key || root-

问题 I'm pretty new to WPF. I often find my self struggling with getting a bunch of child controls combined width to match a given parent container.. As in the following: <ListBox x:Name="BrugereListBox" Grid.Column="0" Grid.Row="3" DataContext="{DynamicResource Brugere}" ItemsSource="{Binding}" PreviewMouseLeftButtonDown="BrugereListBox_MouseLeftButtonDown" PreviewMouseMove="BrugereListBox_PreviewMouseMove" > <ListBox.ItemTemplate > <DataTemplate > <Border BorderBrush="Black" BorderThickness="1"

问题 So, I am trying to create an entity with a parent using bulkloader. I have a Client entity: class Client(db.Model): identifier = db.StringProperty() www_ip = db.StringProperty() local_ip = db.StringProperty() status=db.BooleanProperty() And I want to create a Data entiy as child of Client. class Data(db.Model): songscount = db.IntegerProperty() nextorder = db.IntegerProperty(default=1) players = db.ListProperty(str) previousplayer = db.StringProperty() Client entity exists. Data.yaml is

问题 I'm simply trying to hide the parent div comments_section . <div class="content content_green"> <div id="comments_section"></div> </div> I tried this: document.getElementById("comments_section").parentNode.style.display = "none" which worked, but gives me this error in IE 9: Unable to get value of the property 'parentNode': object is null or underfined. I'm very new to JavaScript, so I'm not sure how to fix this error or if it's even the right approach. Thanks in advance. 回答1: Well, you

问题 .parent() is not returning the parent element that I'm specifying. I don't see any problems with my code or html. Javascript: var vehicle = function () { return { init: function () { var that = this; jQuery('.vehicle-year-profile .options .delete').bind('click', function (e) { e.preventDefault(); console.log(e.currentTarget); // [a.close #] that.remove(jQuery(e.currentTarget).parent('.vehicle-year-profile')); }); }, remove: function (el) { console.log(el); // [] jQuery(el).remove(); } } }();

问题 I have a project where all of my projects have a parent pom defined like this: <parent> <groupId>MyProject</groupId> <artifactId>MyApp</artifactId> <version>1.0</version> </parent> However, this parent pom does NOT specify the modules in a modules element. So when I run the mvn install -f parent/pom.xml command it doesn't do anything. Is there some OTHER way I can build the entire project In Order so that all of the poms are built? By "in order" i mean "built in order of dependency". Because

问题 I would like to change only one parent when I hover over <p> tags. The code is: $('.hover').each(function () { $(this).parent().hover(function () { $('p').parent(this).css('font-size','30px'); }, function () { $('p').parent(this).css('font-size','10px'); }); }); and the HTML is: <ul> <li>1 <p class='hover'>xxxx</p></li> <li>2 <p class='hover'>yyyy</p></li> </ul> When I hover over "xxxx", I want "1" and "xxxx" to change but "2" and "yyyy" do nothing, and when I hover over "yyyy", I want "2"

问题 I need to do some stuff in a dll based on which process has loaded it. So being relatively new to windows programming I need help figuring out how to find the exe which loaded the current dll. So far I have been hard coding the exe file name, which is the dumbest thing to do :D 1) Some one suggested using GetModuleFileName() function. But this seems to crash my app.(I used 0 as the module handle). I am doing nothing fancy. I used the following syntax GetModuleFileName(0,&fileName,MAX_PATH)

问题 I am trying to access/change the properties of a class' Parent through Reflection. If I run ReflectionClass::getProperties() on the child, does it also return any properties that the Parent has as well? If it doesn't, is there any way to access the parent properties using Reflection? 回答1: I worked up this quick test. It looks like private properties of the parent are hidden when you get the child classes's properties. However, if you invoke getParentClass() then getProperties() you will have