i am trying to enable the delete key in my treeview. This is what i have so far: class delkeyFilter(QObject): delkeyPressed = pyqtSignal() def eventFilter(self, obj, event): if event.type() == QEvent.KeyPress: if event.key() == Qt.Key_Delete: self.delkeyPressed.emit() print ...
There mere presence of a custom DefaultSaveEventListener subclass containing no overidden or extended behaviour is enough to trigger this bizarre exception for me when flushing or committing a transaction, using the following configuration Xml: <event type="save-update"> <listener class="MyNamespace.MyCustomSaveEventListener, MyAsse...
Hi, i have a graphicsview and graphicsscen but i don't no how to install and handle the event filter for getting the keyboard events. i appreciate your help regarding the same. Thanks in advance. ...
Is there a way to list all elements that contain two or more events of the same kind? I put a little example at JsBin: http://jsbin.com/alafo3/edit In this example I want a list that contains the <p> with ID="hallo2". ...
How can I call this method programmatically? If I simple do KillZombies(), it says I don't have the correct parameters, but I don't know what parameters to specify when I'm just using code... public static void KillZombies(object source, ElapsedEventArgs e) { Zombies.Kill(); } ...
I have a object that is a private in my class. If that object fires a event I want to pass the event on to whatever is using my class. Currently I do it this way, I put in my constructor: cbName.CheckedChanged += ((sender, args) => this.CheckChanged(this,args)); Is there a better way to do this, and are there any gotchas like the clas...
In specific I am working in linux environment. This is an opengl application. Upon a calculation of certain geometries, I want to be able to fire an event whenever a new geometry is created. Is there any .NET equivalent of events in C ?? Thanks, Vishnu ...
I am using a DrawItem and MeasureItem events to paint a combobox with a DrawMode of OwnerDrawVariable. Basically, I'm trying to have the user highlight a selection with the mouse, and then press the space bar to toggle the Save status of a song list. Then I call the Me.Refresh() event for the form in an attempt to redraw the form and t...
My base interface IFoo declares event EventHandler OnChanged when I do 'implement interface' I get some lame boilerplate code but how do I provide a decent default implementation? add { throw new NotImplementedException(); } remove { throw new NotImplementedException(); } ...
Hi, If you have several radiobuttons in a group, and you have Checked event handlers in your code behind, if a radiobutton is checked how do you cancel this event handling so that the new radiobutton clicked does not get selected and your original checked button stays checked? The code in the event handler in the code behind distinguish...
Hi I have been trying to add onclick event to new elements I added with javascript. the problem is when I check document.body.innerHTML I can actually see the onclick=alert('blah') is added to the new element. but when I click that element I don't see the alert box is working. in fact anything related to javascript is not working.. here...
From what I've read I'm not sure if I've got the naming convention for events and handlers correct. (there seems to be some conflicting advice out there). In the two classes below can anyone tell me if I've got the naming right for the event, the method that raises the event and the method that handles the event? public class Car { /...
If I have a table with a lot of cells, lets assume 50 rows x 50 columns, is the application of a jquery "droppable" to each cell inefficient? Can I assign the droppable to the parent TABLE, for instance, and then somehow capture the actual element (ie. the TD) where the item is dropped? If I remember my event delegation correctly, in an...
I have been looking for a list of HTML elements that are valid targets for touch events on the iPad but haven't found it in the online Apple documentation for handling touch events. I know that a span element can be turned into a touch target by adding a dummy onclick handler, but that trick doesn't work for all elements. I would be ve...
I'm getting into event handling now, and it seems quite confusing to me. See, I come from a web-dev background, so this event stuff is quite new to me. I'm developing in C# / VS08 and created my Application in the WinForm-Designer. Now, I created this program overview; ProgramContext MainForm : Form LoginForm : Form So, what I wan...
I put a break point at the protected void Page_Load(object sender, EventArgs e) method of my master page, but when i start the site it does not hit that break point. Why is the event not firing? I would like to use this event along with others such as the Init event in order to check to see if the session has expired everytime a page lo...
Hey. I have the activity: public class Mtest extends Activity { Button b1; Button b2; public void onCreate(Bundle savedInstanceState) { ... b1 = (Button) findViewById(R.id.b1); b2 = (Button) findViewById(R.id.b2); b1.setOnClickListener(myhandler); b2.setOnClickListener(myhandler); ... } View.OnClickList...
I'm porting an archaic C++/Carbon program to Obj-C and Cocoa. The current version uses asynchronous usb reads and GetNextEvent to read the data. When I try to compile this in Objective C, GetNextEvent isn't found because it's in the Carbon framework. Searching Apple support yields nothing of use. EDIT TO ADD: Ok, so what I'm trying ...
I am really in a fix over understanding the concept of events and delegates.I know that delegates are the objects holding references to methods and can call methods having the same return type and parameters, but then what exactly are events? If I need to use events for making a simple calculator, then how can I use them so that there a...
I'm very new to javascript but I'm trying to make a checkbox that will copy the billto information into the shipto boxes. I have the checkbox with an onclick event, set up like so: <input type="checkbox" name="chkSame" id="chkSame" onClick="fncCheckbox()"/> same as customer info<br/> I get an error of "Expected ';'" on the Else line ...