event-handling

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XMLHttpRequest - a problem with event.loaded and event.total values

I use XMLHttpRequest for file upload and in the browser I\'ve a progress bar that show, how big part of image is already uploaded.[详细]

2023-04-04 08:11 分类：问答
Check if a Key is Down with Qt

I am playing around with some graphics, and I have implemented simple camera movement with the arrow keys. My first approach was to override keyPressEvent to do something like this:[详细]

2023-04-04 04:28 分类：问答
Discover the current position of the childs inside a ScrollView

I has a subclass of ScrollView that paginate its childs, it\'s something like this. It\'s not the only thing that this class does, it\'s also give it\'s TouchsEvents if any child was able to handle i[详细]

2023-04-04 04:12 分类：问答
Why is the reason for this error?- The name 'add_Click' does not exist in the current context

public MainPage() { InitializeComponent(); ApplicationBar = new ApplicationBar(); ApplicationBar.Opacity = 1.0;[详细]

2023-04-04 03:16 分类：问答
variable scope when dealing with event handlers

function World:draw() --draw the tiles based on 2d int开发者_C百科 array --draw the player --draw the monsters[详细]

2023-04-04 01:29 分类：问答
Is it possible to prevent file dialog from appearing? Why?

Suppose I have input[type=file] element and I want to interc开发者_如何学Cept onclick event and prevent file dialog from appearing if conditions are not met. Is it possible? And why, if - not?Soufiane[详细]

2023-04-04 01:28 分类：问答
Redirection of alert box button

I would like to know if we can actual开发者_运维问答ly redirect the alert box to a specific view. Meaning that when they clicked on \"View\" which is on the notification alert, it will redirect them t[详细]

2023-04-03 23:50 分类：问答
Multiple Functions Bound to a Single Widget

I\'m binding multiple functions to a single widget using 开发者_运维知识库the same sequence (in this case the \'<Button>\' sequence) in Tkinter. To do this I\'m using the add argument. Is it pos[详细]

2023-04-03 21:09 分类：问答
code reuse with event based programming in extjs4 mvc

I have a wizard with each step a form.On click of next wizard calls form.validate() and then switches to the ne开发者_如何学Pythonxt card. Validate does all sorts of business validation + basic form v[详细]

2023-04-03 18:21 分类：问答
how to add event handler to control in datatemplate in resource dictionary

I have a resource dictionary: <ResourceDictionary开发者_如何学编程 xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\"[详细]

2023-04-03 08:34 分类：问答