setfocus

问题 I was wondering if you can send focus to a dynamic li. Here's what I'm trying to do: I've got a search box that has a keyup function bound to it where it searches for people's names. The results appear in a div right below the search box with a ul of results. I was hoping to make it where if someone hits the down arrow button that the focus gets switched to the first element of the ul. Kind of like how a drop down works. Here's the code (I didn't put in all the CSS so it doesn't look as

问题 Lets say i have a form like: <select id="model"/> <input type="text" id="serial"/> <label>Packing <div id="packing" name="packing"></div></label> <br/> <input id="pack1" type="radio" class="pack" name="pack" value="OK" />OK <input id="pack2" type="radio" class="pack" name="pack" value="NG" />NG i'm using barcode scanner for input `serial`, i want do like this: choose model at dropdown list after model choosen, set focus into #serial so it can makes data show at textfield data after scan show

问题 import javax.swing.*; import java.awt.event.KeyAdapter; import java.awt.event.KeyEvent; public class AnaPencere{ JFrame pen; AnaPencere(){ pen = new JFrame("Ana Pencere"); pen.setSize(613, 253); pen.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); pen.setLocationRelativeTo(null); pen.setResizable(false); pen.add(new Cizim()); pen.setVisible(true); } private class Cizim extends JPanel{ private Cizim() { this.addKeyListener(new KeyAdapter() { @Override public void keyReleased(KeyEvent e) {

问题 I have a textbox on a userform. If the user fails to enter anything in this textbox, I need to trap that to force an entry. I can do this easily enough, but after notifying the user tht they need to make an entry, I want the focus to return to the textbox. Right now, it doesn't do that. Here is my code: Private Sub txtAnswer_KeyDown(ByVal KeyCode As MSForms.ReturnInteger, ByVal Shift As Integer) Select Case KeyCode Case 13: If Me.txtAnswer.Value = "" Then temp = MsgBox("You need to enter an

问题 I have to show (with showModal) a Form with many TEdit but I want to force the focus on a TEdit, but not always the same, depending on the context. I can't use SetFocus before the ShowModal (because the Form is not activate) and use the Component Name or Tag is not convenient in my application. Do you have an idea ? 回答1: The simplest way to achieve your goal, in my view, is to assign to the ActiveControl property for the form. You can do this before showing the form. When you form is later

问题 I have to show (with showModal) a Form with many TEdit but I want to force the focus on a TEdit, but not always the same, depending on the context. I can't use SetFocus before the ShowModal (because the Form is not activate) and use the Component Name or Tag is not convenient in my application. Do you have an idea ? 回答1: The simplest way to achieve your goal, in my view, is to assign to the ActiveControl property for the form. You can do this before showing the form. When you form is later

问题 Simple question: is it possible to set focus on another application's textbox (using it's ClassName). I have the window as an "intptr" etc etc but just need some guidance as to what functions/APIs are available for this! Issue is, I use the SetForegroundWindow API to get window focus, but it wouldn't let me send the Ctrl+L keys to focus on the textbox! Any help would be great! 回答1: ...as far as I recall, this is the code I had to use to make that work - and that worked well on my apps, and

问题 My knowledge of Windows programming is close to zero. But now I have made a Forth program running from the console in Windows which opening a primitive window for graphics. The problem is that I want to control the program by pressing keys, but when the program starts there is no focus on the console window, just on the graphic window. How do I change back focus? I guess I have to use some WINAPI, but which? 来源： https://stackoverflow.com/questions/41272078/changing-the-focus-back-to-the

问题 Currently in my application it is impossible to deselect a textbox. The only way is to select another textbox. My users and I agree that clicking anywhere else on the form should deselect the current textbox. I tried overriding the MouseDown on many controls and having the focus set to a random label but it doesn't work for some controls like the MenuStrip or scrollbars. Any ideas? 回答1: Assuming you have no other controls on your forum, try adding a Panel control that can receive focus. Set

问题 I have a RecyclerView which have EditText as its list items. When i scroll the RecyclerView , the EditText loses focus when the item goes off screen. So the focus does not remain on the EditText when it comes back on the screen on scroll. I want the focus to remain on the same item. For that i also tried storing position of the item on focus and reassigning the focus in onBindViewHolder . But that slow downs the scrolling. I also tried this with ListView but there is another kind of focus