event-handling

问题 I have an AutoSuggestBox which is set to handle the events GotFocus & TextChanged simultaneously. I have cleared the text from the text box in GotFocus event. Now the problem is that when I select any of the suggestions in AutoSuggestBox , after selecting it calls the GotFocus event handler and clears the selected text from it. This is the MainPage.xaml code using the AutoSuggestBox: <AutoSuggestBox x:Name="auto_text_from" HorizontalAlignment="Left" VerticalAlignment="Center" PlaceholderText=

问题 I have a datagridview in a C# Winform project. This datagridview is used to insert values into a database. Each column matches up to a corresponding db column. One of the columns is a DateTime column. I want to 'validate' this date to ensure it is in the proper format. Ideally, you would leave the cell and it would convert it to a date time format that I choose. I have used a series of events to attempt creating this functionality but have been having problems. The problem that I keep having

问题 I'm studying advanced Java and trying to write a program that utilizes the MVC design pattern. The program needs to draw a string which can be modified by a user's input in a JTextField . The user can also adjust the color and font size of the text through a JComboBox and a JSpinner respectively. Here is what I have so far: public class MVCDemo extends JApplet { private JButton jBtnController = new JButton("Show Controller"); private JButton jBtnView = new JButton("Show View"); private

问题 I'm creating a keyboard using buttons with java, when a user clicks on a button labelled from A to Z it will set a JTextField text to A or whatever button they pressed. I have a seperate class for each button so for A its public class listenser1 implements ActionListener , B its public class listenser2 implements ActionListener is this a good way of doing it? Also I tried to do do it under one class and used if and if else statements buy using if(a.getText().equals("A")) { input1.setText

问题 This is similar to the question asked here. I am dispatching custom event "ShopEvent" but i am getting error "Type Coercion failed: cannot convert flash.events::Event@81ecb79 to com.events.ShopEvent" Note: Error is thrown from the parent custom component (3rd code snippet), I have added more details there This is my custom event. See the first constant, I copy pasted the event name in custom components. package com.events { import flash.events.Event; public class ShopEvent extends Event {

问题 I am using a panel (say parentPanel) having another child panel (say childPanel). How can i fire a custom event from childPanel that will be caught by parentPanel? 回答1: Like so: Ext.define('Ext.ux.form.Panel', { extend: 'Ext.form.Panel', title: 'Simple Form', bodyPadding: 5, width: 350, layout: 'anchor', defaults: { anchor: '100%' }, defaultType: 'textfield', initComponent: function() { var me = this; me.items = [{ fieldLabel: 'First Name', name: 'first', allowBlank: false }]; me.callParent

问题 My situation is that I'm developing a C# application which is launching an instance of a Microsoft Office Excel Application. I change some of the Form's functions so that the instantiated Excel Application is being killed and cleaned up from memory when my Form's being closed. What I want to do is to perform the opposite. I'd like my instance of Excel to close my windows Form when it's being exited. 回答1: Ok, I haven't even tried this so I'm not sure if it will work, but you could try

问题 I have a working form application that has a button on it. I have the source code too. So now I am trying to run the application from schedule tasks on windows and I would like to change the code the to the click button action when the application runs. The problem is the form should be loaded first and then the click action should be fired. Do I need a timer to this? if so could you please give me a help with this? So it takes about 3-4 seconds to load the form application. so it should fire

问题 I have a CDialog contains many CEdit objects. They all have to do similar operations when kill focus (for example: when focus is killed the edit box text's is changed). I can define the dialog's message map this way: ON_EN_KILLFOCUS(ID1, kf1) ON_EN_KILLFOCUS(ID2, kf2) ON_EN_KILLFOCUS(ID3, kf3) ON_EN_KILLFOCUS(ID4, kf4) and all kf function will call a common function: CommonFunction(CEdit* editBox) But is there a way to transfer the edit box in the kf function itself? I mean to define it this

问题 Could I create a function or custom event in a javascript file called "justDidStuff" and then make .live() watch for that being triggered in another jQuery file? I know this sounds really complicated, but I can't think of another way to do this. I have new content coming in from the javascript file which is the only infinite scroller known to work for Tumblr. I have a bunch of styling happening on the layout of the incoming posts (http://syndex.me) which i'm obviously going to make with