I know there are many ways to prevent image caching (such as via META tags), as well as a few nice tricks to ensure that the current version of an image is shown with every page load (such as image.jpg?x=timestamp), but is there any way to actually clear or replace an image in the browsers cache so that neither of the methods above are n...
Hello I have maybe dumb question - is there a function, that clears last line in command prompt? I dont mean "cls" - it clears the whole sreen, I want to delete just the last line. e.g. I am searching for a file in a folder and its subfolders and I want to print to cmd current folder - but I want to rewrite it, when the folder changes,...
what's the best way to remove a row (QTreeWidgetItem) from a QTreeWidget? The QTreeWidget content has been set by: myQTreeWidget->insertTopLevelItems(0, items); // items = QList<QTreeWidgetItem*> then I remove an item from my QList "items" and I try to clear/reset the QTreeWidget packList->clear(); packList->insertTopLevelItems(...
Hi, I try to clear my listview but the clear method doesn't work: myListView.Items.Clear(); This doen't work. When i put a breakpoint at this line, the line is executed, but my listview isn't empty. How come?? I fill my listview by setting it's datasource to a datatable. My solution now is to set the datasource to an empty datatab...
I have created a simple grid of divs by left floating them and an empty div with a clear at the end of each row. This works fine in Firefox, but in IE I get extra vertical space between rows. I tried to apply the "clearfix" method, but I must be doing something wrong. Why does IE insert the extra vertical space and how can I get rid of...
I've got four div elements floated to the left. The third div is cleared. In Firefox and Chrome the elements are positioned as expected: The first and second divs are adjacent to each other and are above the third and fourth divs which are also adjacent to each other. IE7 on the other hand places the fourth div adjacent to the first and ...
Like most Python developers, I typically keep a console window open with the Python interpreter running to test commands, dir() stuff, help() stuff, etc. Like any console, after a while the visible backlog of past commands and prints gets to be cluttered, and sometimes confusing when re-running the same command several times. I'm wonde...
I fear this is a really stupid question, but here goes: Why does the clear method in Java's default LinkedList implementation bother to walk the list and unhook all the nodes? Why not just unhook the header and leave the rest of the list connected -- the GC will get it anyway, no? Here's the method: /** * Removes all of the elements...
How do I clear all the entries from just one table in MySQL with PHP? ...
I am using gdi+, in c++. Bitmap canvasImg = new Bitmap(400, 300, PixelFormat32bppARGB); Graphics canvas = new Graphics(&canvasImg ); canvas.DrawImage(XXXX); There are two problems. 1. I find the canvasImg is black. How can I change the color to white? I mean I want an white canvas. 2. If I have drawn some thing on the canvas, How c...
I suppose a DIV with "clear:both" style can make its parent containing DIV doesn't wrap, but below HTML seems not work in that way. If the browser window is narrow, the second DIV "OK OK" still wraps to next line. <div style="overflow: hidden;"> <div style="float: left; overflow: hidden; white-space: nowrap"> ...
I'm trying to get two divs to float to opposite sides of the page, with text flowing between them. The top of the second (left-aligned) div should be even with the bottom of the first (right-aligned) div. The code below works fine in FF, Chrome, Opera, etc. fine, but they do not clear properly in IE. Both divs appear at the top of the...
Is there any setting in Coda, or hackable solution, to get the JavaScript Console log to automatically clear itself after page reload? I often stumble when I see old errors in the log, that doesn't still exist. ...
I'm using the following TCP Sockets Server/Client example: http://www.codeguru.com/Csharp/Csharp/cs_network/sockets/article.php/c8781/ I'm also using the following CryptoStream example: http://www.obviex.com/samples/Encryption.aspx Problem: Both Server and Clients communicate perfectly until I Stop the Server socket, wait a minute or s...
If my computer is the web server for multiple live websites, is there any harm if i type ipconfig/dnsflush in my command prompt editor?? I always got this problem. I embed a flash (swf) in a .html file. Whenever I update the swf, the .html file always use the old swf even if i clear my cache and what-so-ever. Or is there any ways to le...
How do I send a cookie in a functional test? How do I test to be sure that the cookie is cleared? I've had great success using TDD to build the models for a Rails application, but have hit a snag with regard to controller testing: I can set cookie values once in a test and read them, but I can't clear them. That is: test "clears cookie...
How do you clear the console in MATLAB? For example, I'm debugging a script that displays a ton of output. I want to clear the console on every run, so I don't have to look through output from old runs. ...
I am drawing a rectangle, sleeping for a few milliseconds--then I want to clear the rectangle, but I can't figure out how. (The rectangle is sitting over a graphic so I can't simply cover it up with another rectangle) graphics.DrawRectangle(p, innerRectangle) System.Threading.Thread.Sleep(75) ...
I can't add top margin to footer that uses clear:both. Using padding seem to solve the problem. But it ruins the top solid border of the footer. index.php: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> ...
Suppose in bash you start writing a command like: $ rm -rf /foo/bar/really/long/path/here and then realize you don't want to execute this after all. Is there a way to clear the input with one or two keystrokes? What I have been doing lately is prepending echo and enclosing the input in quotes (Ctrl+A, echo ", Ctrl+E, ") then hitting...