Now i am working on Windows 8 Metro application. For that i have a popup window with textbox and OK button. I need to hide Virtual Keyboard when "Enter" is clicked on Virtual keyboard. If i click "OK" button on popup keyboard hides automatically.
I got this Link as good reference (using HiddenField). Is there any way to done this work without using "HiddenField". Thanks in advance..
Well finally found a solution for this issue.. I just change the focus from textbox to button in my popup.. below is the sample code..
public void FocusTextbox(object sender, EventArgs e)
{
// set focus to textbox on popup open
Textbox.Focus(Windows.UI.Xaml.FocusState.Programmatic);
}
public void Textbox_KeyDown(object sender, KeyRoutedEventArgs e)
{
// conforming the "Enter" button click
if (e.Key == Windows.System.VirtualKey.Enter)
{
// change the focus to OK button
this.OkButton.Focus(Windows.UI.Xaml.FocusState.Pointer);
}
}
Change the focus before closing the popup... it works great now..
And changing the focus to Label or Textblock is not hiding the Virtual keyboard...
i was also looking for this , but i found this approach first
Related
I have a pair of ComboBox controls having IsEditable() true as well as false.
When I am scrolling through my application or moving my application window (by clicking on the title bar) with list popup open, I would like to close the ComboBox list popup as otherwise there would be a weird delay in aligning the list correctly below the control.
Is this possible in UWP with WinRT/C++? If so, kindly suggest how to.
I did an investigation to find if any events are there to handle in such a scenario when ComboBox control is essentially displaced from initial position while moving the app window/scrolling the app, but couldn't find any help.
Edit: Adding ComboBox image from XAML Controls Gallery to demonstrate the behaviour. In case if IsEditable set as true, when popup is opened and application is scrolled then popup goes outside the window. Instead I would like to dismiss the popup itself. However, if IsEditable is set as false then we cannot scroll until the popup is dismissed.
Update: The code I tested for PointerWheelChanged
void CBFile2022X::OnPointerWheelChangedHandler( Windows::Foundation::IInspectable const& sender,
Windows::UI::Xaml::Input::PointerRoutedEventArgs const& eventargs )
{
OutputDebugString( L"PointerWheelChanged" );
if( ComboBox != nullptr )
{
ComboBox.IsEnabled( false );
ComboBox.IsEnabled( true );
}
}
I have to say that currently there is no event to detect if the application window is moved or changed its location.
Update:
You could handle the UIElement.PointerWheelChanged Event which will be fired when users scroll the mouse wheel. You could set the IsEnabled property of the ComboBox to false first and then set it to true, this will make the ComboBox lose its focus. Like:
private void Mypanel_PointerWheelChanged(object sender, PointerRoutedEventArgs e)
{
FontsCombo.IsEnabled = false;
FontsCombo.IsEnabled = true;
}
Update2:
If you are using a ScrollViewer you could try to handle the ScrollViewer.ViewChanging Event.
private void ScrollViewer_ViewChanging(object sender, ScrollViewerViewChangingEventArgs e)
{
FontsCombo.IsEnabled = false;
FontsCombo.IsEnabled = true;
}
I'm trying to declare a button as default in UWP app but receive an error:
The property 'IsDefault' was not found in type 'Button'
How can I make a default button in UWP app?
I down know what IsDefault is in WPF but to get if a button is pressed in UWP you can use CoreWindow.GetForCurrentThread().KeyDown. Create a Method that will be called from when the button is pressed or VirtualKey.Enter is clicked.
public MainPage()
{
this.InitializeComponent();
CoreWindow.GetForCurrentThread().KeyDown += MainPage_KeyDown; ;
}
private void MainPage_KeyDown(CoreWindow sender, KeyEventArgs args)
{
switch (args.VirtualKey)
{
case Windows.System.VirtualKey.Enter:
// handler for enter key
break;
default:
break;
}
}
You can use key down event which you can place on any textbox for example if you are making a login page then probably there will be 2 textboxes for username and password then just add key down event handler to textbox as it will be the last mandatory field like this:
<PasswordBox KeyDown="PasswordKeyDown"/>
then you can handle this event as:
using System.Windows.Input;
private void PasswordKeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Enter)
Login();
}
Hope it will help you :)
There is not easy or clean way to solve your problem because IsDefault is not available for uwp apps.
if you are using MVVM or you want to reuse your code I recommend you to use Behaviors and follow the examples that the other guys posted.
I need a Button which user can invoke by pressing the ENTER key.
In an UWP app, by default a Button can be invoked by pressing the Enter key. So I guess what you want is setting the focus on this Button when there are some other UIElements in your page.
You can refer to Keyboard navigation among UI elements,
By default, the tab order of controls is the same as the order in which they are added to a design surface, listed in XAML, or programmatically added to a container.
To focus on the Button which is not the first element, you can just give the TabIndex="1" property to your Button, this property can make your Button get focus whenever the page is loaded, but if you change the focus on other controls in this page, you will need to reselect this button by mouse clicking, touching or TAB key.
Is there a way to scroll-up view the required amount when the soft-keyboard shows up? The page in my app has a lot of textboxes and when the keyboard shows up, a lot of them hide under it and the user has to manually scroll down/hide keyboard to enter values in the other textboxes.
How can I scroll-up the page by some amount to improve UX?
You can have a KeyDown event set for each textbox and inside event handler check if Enter key is pressed shift focus to next textbox.
KeyDown="txtMessage1_KeyDown"
private void txtMessage1_KeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Enter)
{
nextTextbox.Focus();
}
}
I am working on a Compact Framework application. This particular hardware implementation has a touchscreen, but its Soft Input Panel has buttons that are simply too small to be useful. There are more than one form where typed input is required, so I created a form with buttons laid out like a keypad. The forms that use this "keypad" form are modal dialogs. When a dialog requiring this "keypad" loads, I load the "keypad" form as modeless:
private void CardInputForm_Load(object sender, EventArgs e)
{
...
keypadForm = new KeypadForm();
keypadForm.Owner = this;
keypadForm.SetCallback(keyHandler);
keypadForm.Show();
}
The SetCallback method tells the "keypad" form where to send the keystrokes (as a Delegate).
The problem I'm having is that the modeless "keypad" form does not take input. It is displayed as I expect, but I get a beep when I press any of its buttons, and its caption is grayed-out. It seems like the modal dialog is blocking it.
I've read other posts on this forum that says modal dialogs can create & use modeless dialogs. Can anyone shed light on this situation? Is there a problem with my implementation?
I found the answer: Set the keypad form's Parent property, not its Owner property, to the form instance wanting the keystrokes. The keypad dialog's title bar stays grayed out, but the form is active.
private void CardInputForm_Load(object sender, EventArgs e)
{
// (do other work)
keypadForm = new KeypadForm();
keypadForm.Parent = this;
keypadForm.Top = 190; // set as appropriate
keypadForm.Show();
}
Be sure to clean up when done with the parent form. This can be in the parent's Closing or Closed events.
private void CardInputForm_Closing(object sender, CancelEventArgs e)
{
// (do other work)
keypadForm.Close();
keypadForm.Dispose();
}
There are two panels on the keypad form, one with numerals and one with letters and punctuation that I want. There is also an area not on a panel that is common to both, containing buttons for clear, backspace, enter/OK, and cancel. Each panel has a button to hide itself and unhide its counterpart ('ABC', '123', for example). I have all the buttons for input on the keypadForm fire a common event. All it does is send the button instance to the parent. The parent is responsible for determining what action or keystroke is desired. In my case I named the buttons "btnA", "btnB", "btn0", "btn1", "btnCancel", etc. For keystrokes, the parent form takes the last character of the name to determine what key is desired. This is a bit messy but it works. Any form wishing to use the keypad form inherits from a base class, defining a method for callback.
public partial class TimeClockBase : Form
{
public TimeClockBase()
{
InitializeComponent();
}
// (other implementation-specific base class functionality)
public virtual void KeyCallback(Button button)
{
}
}
The click event on the keypad form looks like this.
private void btnKey_Click(object sender, EventArgs e)
{
// play click sound if supported
(Parent as TimeClockBase).KeyCallback(sender as Button);
}
The method in the parent form looks like this.
public override void KeyCallback(Button button)
{
switch (button.Name)
{
case "btnCancel":
// setting result will cause form to close
DialogResult = DialogResult.Cancel;
break;
case "btnClear":
txtCardID.Text = string.Empty;
break;
// (handle other cases)
}
}
I have a custom form and I would like to add some functionality in my submit button. When I click on Submit button, I would like to close the popup and refresh the parent page.
I used this code in my button but there is a problem. It does not validate the controls and it makes a postback and even does not save any data.
OnClientClick="javascript:window.frameElement.commitPopup();"
Can you help me with some working code?
Thank you.
You need to set OnClientClick property after the code you want to be executed.
protected void btnAdd_Click(object sender, EventArgs e)
{
//Your Code here(some functionality)
Context.Response.Write(#"<script type='text/javascript'>window.frameElement.commitPopup(); return false</script>");
Context.Response.Flush();
Context.Response.End();
}