parent

问题 I've found a few things similar but nothing quite what I need. ID | PARENT 1 | NULL 2 | 5 3 | 6 4 | 6 5 | NULL 6 | 9 7 | NULL 8 | 7 9 | 8 10 | NULL I have a table that looks like the below and need to find the top-most parent using MySQL. The trouble I'm having in this is that there could be up to 20 in the heirarchy steps to get to the top parent and I think I'm just not well versed enough in MySQL to figure it out. Thanks in advance! 回答1: Here is an answer from me. Its not nice, but it

问题 I have a class (let's call it A ) that is extended by several children class ( B , C , D , etc.). In each child class, there are specific methods that I'd like to be accessible from an instantiation of the parent class A . I tried to declare A as an abstract class, and to declare each child class methods inside as abstract. Then I implemented these methods in their own class but it seems that each child class must implement every method of the parent class. However, I can't do this. Would you

问题 I have a div (article) which has two childs (header and #content_outer). Header has a correct height, and I would like #content_outer to have a height (without giving a specific number for example:200px) so that header height + #content_outer height = article height. Here is a fiddle: http://jsfiddle.net/fyNX4/ (In the fiddle #content_outer shouldn't exceed article div in the bottom) I would like that the solution is only with css. Thank you very much. EDIT: To be more specific, this is my

问题 I was working on a wepage earlier this week where the 'banner-image' was being cut off the view-port of the screen depending on the browser and size of screen. I thought that by simply converting the Parent Container to 'Height: 100vh' this would make all child elements fit within the parent container that is now set to fit the height of any viewport. This did not work as I intended it to. The banner image was still being cutoff even though the parent container was set to 100vh. Is there a

问题 The snippet below is a part of a much larger structure with many .step elements. I need to match all .stepText elements that are next to .stepTitleAndImages ul.standard In other words, match all .stepText elements that have .step parent that has .stepTitleAndImages child that has .stepImages.standard child <div class="step"> <div class="stepTitleAndImages"> <h3 class="stepTitle"></h3> <ul class="stepImages standard"></ul> <div class="clearer"></div> </div> <div class="stepText "></div> **HOW

问题 I have a div like this: <div id="popupDiv1" class="popupDivClass"> <a id="popupDivClose" class="popupCloseClass">x</a> </div> When I click on the 'x' (I want to run a jquery function called disablePopup(id); where id is the id of the coresponding popupDiv (I have many popupDiv each with it's own X button. in order to do so I implemented the following $(".popupCloseClass").click(function (event) { var buttonID = $(event.target).attr("id"); var id = $( buttonID).closest("div").attr("id");

问题 I edited a little bit : for ( ii = 0; ii < nbEnfants; ++ii) { switch (fork()){ case -1 : { printf("\n\nSoucis avec fork() !!! \n\n"); exit(0); }; case 0 : { EEcrireMp(ii); }break; default : { tabPidEnfants[ii] = p; usleep(50000); ELireMp(nbSect, nbEnfants,tabPidEnfants); }; } } My problem : i get to many child, like a bomb of children spawning. How can i stop those child ? the break should stop it no ? Thanks 回答1: So, when you fork a process, the new process is an identical copy of the parent

问题 I have a table with checkboxes looking like this: <td class="table-col" > <div class="group-one" > <input type="checkbox" /> </div> </td> What I want to do is when the checkbox is checked to apply a "selected" class to "table-col". if ($('.table-col').find(':checked')) { $(this).parent().parent().addClass('selected'); } I looked at many post with a similar solution like above but it doesn't seem work for me. I'm not sure why but this is pointing to HTMLDocument not the element. (edit) On this

问题 I have a table with checkboxes looking like this: <td class="table-col" > <div class="group-one" > <input type="checkbox" /> </div> </td> What I want to do is when the checkbox is checked to apply a "selected" class to "table-col". if ($('.table-col').find(':checked')) { $(this).parent().parent().addClass('selected'); } I looked at many post with a similar solution like above but it doesn't seem work for me. I'm not sure why but this is pointing to HTMLDocument not the element. (edit) On this

问题 'I want to bind the Height property of the RichTextBox to the Height Property of the GridView`s Row. How can I do that? I do not know how to get the Row's Height as I can not access the Row in xaml what I would like to do. The Ancestor type should be GridViewHeaderRow , but I do not know its level... EDIT: <my:RadGridView Height="524" RowHeight="300" ItemsSource="{Binding Lessons}" AutoGenerateColumns="False" Name="dataGrid1" VerticalAlignment="Top" SelectionMode="Single" CanUserSortColumns=