user-interface

问题 How do I get the 'id' of an item in a selectable list, if the list is created dynamically? <ul id="selectable"> <li id='1'>..</li> . . <li... </ul> I tried var num = $('#selecable :selected').attr( "option" , 'id' ); but get only [object Object]... What is the right way? 回答1: Update: For completeness, if an element is selected, the plugin adds a class ui-selected to the element. So you can get the ID of current selected element via: $('#selectable .ui-selected').attr('id'); But be aware that

问题 How do I get the 'id' of an item in a selectable list, if the list is created dynamically? <ul id="selectable"> <li id='1'>..</li> . . <li... </ul> I tried var num = $('#selecable :selected').attr( "option" , 'id' ); but get only [object Object]... What is the right way? 回答1: Update: For completeness, if an element is selected, the plugin adds a class ui-selected to the element. So you can get the ID of current selected element via: $('#selectable .ui-selected').attr('id'); But be aware that

问题 Am working on the project in which am required to fetch files from the server and to display them on the client post.All of this is to be done in the UNIX environment where I used C language for coding client and server and GTK+ for the interface which will display files in the PDF format. My problem is I do not know how can I intergrate a PDF viewer in such interface. As the final results I would like when I select the file and click GTKbutton it displays the file in a PDF format in that

问题 I am drawing some objects on a JFrame such as circles, rectangles and arcs between them. I was wondering how I can implement an Undo button bearing in mind that the ones I found are targeted at text fields and writing in them. I don't have code to show and I wish to receive advice on how to implement it. Is it possible to 'register' the last event that occurred and then delete it? I have a very simple code about deleting the circles for instance. It works only for them and I know that it is

问题 I am drawing some objects on a JFrame such as circles, rectangles and arcs between them. I was wondering how I can implement an Undo button bearing in mind that the ones I found are targeted at text fields and writing in them. I don't have code to show and I wish to receive advice on how to implement it. Is it possible to 'register' the last event that occurred and then delete it? I have a very simple code about deleting the circles for instance. It works only for them and I know that it is

问题 I have a borderless splash screen form displaying loading progress and containing Minimize and Close buttons (something similar to splash screens seen in Office 2013). I would also like to provide system menu of the window which opens on right click anywhere in the form. Currently I'm achieving opening the menu by sending keys Alt+Space . System.Windows.Forms.SendKeys.SendWait("% ") 'sending Alt+Space With this approach, window system menu always opens in top-left corner of the window. Is

问题 I am using a div tag in code as shown below: <div class="col-sm-6 col-md-6 col-lg-4"> <img src="images/dummy_image.png" class="img-responsive"> </div> The user can upload any kind of image and have it displayed here. I want to fit the image inside of the div , meaning specifically that I need to cover the full div using that image as it's resized. I am using Bootstrap 3.3.7. Please advise. 回答1: Just add you images width to 100%. But as you are saying user will upload various kind of images,

问题 I am using a div tag in code as shown below: <div class="col-sm-6 col-md-6 col-lg-4"> <img src="images/dummy_image.png" class="img-responsive"> </div> The user can upload any kind of image and have it displayed here. I want to fit the image inside of the div , meaning specifically that I need to cover the full div using that image as it's resized. I am using Bootstrap 3.3.7. Please advise. 回答1: Just add you images width to 100%. But as you are saying user will upload various kind of images,

问题 I am using a div tag in code as shown below: <div class="col-sm-6 col-md-6 col-lg-4"> <img src="images/dummy_image.png" class="img-responsive"> </div> The user can upload any kind of image and have it displayed here. I want to fit the image inside of the div , meaning specifically that I need to cover the full div using that image as it's resized. I am using Bootstrap 3.3.7. Please advise. 回答1: Just add you images width to 100%. But as you are saying user will upload various kind of images,

问题 I'm running octave 3.8 with the gui in Ubuntu 14.04. I have an infinite loop somewhere in my program and it seems like the terminal doesn't respond to the typical keypresses to stop execution. (eg. Ctrl+C, Ctrl+Z) When I run programs in the terminal, I can just press Ctrl+C, but that doesn't seem to work here. What can I do to halt execution? 回答1: To stop a running command or script in octave GUI or prompt: Ctrl + C you will see: less -- (f)orward, (b)ack, (q)uit To abort (and close the GUI