WinForms Accept Button Annoyance - winforms

I have a base panel class that has (among other things) three buttons. I use subclasses of this base class in two different config dialogues. Both dialogues have an OK button set as the accept button.
In one of the dialogues, if I click one of the buttons in the base class, focus immediately returns to the OK button, so pressing the enter key works as expected.
In the other dialogue, focus remains wth the button in the base class that was clicked if it is enabled, or moves to the next button if the clicked button is no longer enabled.
There is no code that handles the base class button click events in either of the derived classes.
Ideas anyone?

I'm not sure what's going on in your first dialog because it doesn't seem to be operating the way I would expect it to. The second dialog sounds more like the standard behavior.
In Windows Forms, the AcceptButton property only comes into play when pressing Enter doesn't otherwise cause any actions. In both of your examples, clicking on a button should move the focus to that button, and subsequently pressing Enter would cause another click on that button.
In any event, I think it's generally preferable to stick with the Windows user interface guidelines and not automatically change the input focus back to the OK button. If the user clicks on one of the other buttons, the focus should stay there until they move it.

i don't know what language you are using, but the button class should have a focus method that will highlite it for enter pressing. in the click method, or when you open the dialog you can call this method to make the button you want get the form's focus
c#
myButton.Focus();

Related

How to set focus on textbox and button simultaneously in WinForm

I want to set focus on a button while caret is present in textbox and user can still enter data to textbox. But when user presses enter key, button press will be simulated.
I am currently using a work around to solve this problem by handling onKeyDown event and checking for enter key. But problem is there is no clue for user to understand this as there is not blue border around the button that indicates focus on button.
Here is a example of what I want to implement (user can enter text in textbox while focus is on :
I have tried to search on google and StackOverflow but could not find any relevant result.
This is a fundamental Windows principle. It's not possible to have 2 controls (windows) focused at the same time.
So the focus should be inside the text box. But you can get the visual indication needed by setting the ok button as AcceptButton of the form (you might also want to set cancel button as CancelButton).
In the form constructor, load event or using designer:
this.AcceptButton = okButton;
There is no need to handle KeyDown event - as soon as the text box is not multiline, pressing Enter while the focus is inside it will generate ok button click. The same applies for the button set as CancelButton when you press ESC.

CodenameOne set indexing of fields for virtual keyboard

Using CodenameOne,
I have a Form that the user needs to fill in. All of the components, however, are actually Containers that represent custom functionality. As an example, I would have a TextField alongside a Button on a Container, and I would use that Container as a "Component". This allows me to create more advanced functionality by combining existing Components.
A good example of where this is necessary is that of a custom date entry field existing out of 3 TextFields or a combination of TextFields and ComboBoxes.
I have a "Field" that has functionality for that of a Contact Component.
This all serves as a single "Unit" in order to allow the user to choose a contact or fill in their own. Buttons open Dialog popups, etc.
My problems comes with when the user uses the Android keyboard. Should this Contact Object be the second "Field" and the user presses the 'Next' button on the Android keyboard, the App does not know what field to give focus.
Furthermore, If one of the fields are a ComboBox or a Button and the user presses next to reach that Component, the keyboard doesn't close, and instead removes the 'Next' button, replacing it with a return button or an emoticon selector.
Below is an example situation:
The user would press on the first field, the Keyboard shows up, and when the user presses next, the keyboard's Next button dissapears, as the immediate next field happens to be a Button or ComboBox.
Is there a way to change the focusing index, or omit certain fields form ever gaining focus in this way? I tried making the entire thing a Component but that doesnt allow me to combine other Components. Even if it is possible to make the parent Container a Component, how would I solve this particular issue?
The default behavior is to use the "next focus down" for this functionality so just use setNextFocusDown(nextTextField) on each one of the components. Notice that a ComboBox won't work as expected although you might want to change that to an AutoCompleteTextField which would.

WPF + PRISM - show modal popup window with controls in it?

I am following the 'Stock Trader RI' example by the Prism team,
but it does not address this exactly :
I have a Shell with a Main Region in it.
In this shell I have some filter fields and a grid.
When I press on a button - I would like to load a screen that allows me to change the filters,
and then press 'Save'. This would then call a service to update the fields, and close the pop-up.
Here is an illustration of the 'Shell' before pressing the button (left) and after (right) :
Problems are :
The 'Stock Trader RI' sample app only uses a modaless dialog popup. I need a MODAL pop-up (background will continue to refresh, but user will not have access to it as long as pop-up is active).
Need to have Silverlight-like effect when pop-up shows, meaning - 'Shell' needs to appear 'disabled' (like a gray mask over it).
Pop-up window should have no 'X' button and no 'minimize' or 'maximize' buttons. The pop-up window should be simply a rectangle with curved-corners.
I don't think I can use a 'Notification Window' or a 'Confirmation Window' because I cannot put inside them whatever I want. This is an example with 2 fields, but the pop-up might be much more complex with tabs, and a lot of information shown to the user.
So how do I show a modal pop-up from my "WPF+PRISM" Shell-View-Model once the 'Edit' button is pressed ? (Meaning, once the 'EditCommand' is executed...)
I have found a solution here.
Basically it uses InteractionRequest and it allows me to open a window (that I can style however I want, without the 'Maximize' 'Minimize buttons), and also - I can choose for it to be Modal.
Great thing about this solution is - that I can use custom pop-ups and not only Notification or Confirmation pop-ups.
Also - I can pass information back to the class the invoked the 'InteractionRequest'.
Only thing that it doesn't solve - is that I cannot make the calling view look disabled by adding a gray semi-transparent over it ... haven't figured out yet how to do that...

Buttons keeping their focus class after losing focus

I have some buttons in a bottom toolbar of a gridpanel that control adding, and removing records from the row-editing grid.
The handlers are pretty simple: "new" button creates an instance of the model, appends to the grid and then opens a row-editor on the new row; "edit" button just opens the selected row's row-editor; "remove" destroys the record from the store and refreshes the grid view.
For some reason these buttons don't lose the focus class that gives them a border when they have the focus. Here is a picture:
In the picture both the "New" button and the "Remove" button have the focus class, when I press the "Edit" button it also keeps the focus classes even after doing a complete row-edit operation and closing the row-editor.
I did find that when I mousedown on one of these permanently "focused" buttons and then mouseup away from it and then click something else the focus class goes away.
I know that I could put a blur handler for all button components in my respective controllers but I would have thought that this functionality was built in so I am asking to see if there is something I missed somewhere in the docs.
The classes that it won't let go of are these:
x-focus x-btn-focus x-btn-default-toolbar-small-focus
This is with ExtJS 4.1.0 in FF10 on Windows 7. But I did notice similar behavior in ExtJS 4.02 and 4.07, just haven't needed to handle it until now.
I found out what it was:
At some point in the handler chain for each of these buttons the button gets disabled. When a button is disabled in ExtJS it prevents the blur event from firing.
It was necessary to disable the buttons so the solution to simply add button.blur() in the handler was the correct way to do go about it.

Silverlight click event registered a second time before first event completed

I have a button which launches a "modal dialog" - it just creates a transparent grid covering everything, with the "dialog" created on top of that.
However I have a strange issue - if I double/triple click the button really fast (or add some delay in the event code), the button click event is executed multiple times, creating multiple overlapping modal dialogs. If the first action in my event is to disable the button (IsEnabled=false) it seems to prevent this.
My guess is that Silverlight is being multithreaded with input - it is not only recording the second click in another thread (while the button's click event is running), but it is jumping the gun by evaluating which control should be the target before the previous event has finished executing. Even though that event alters what control is at those mouse coordinates, it doesn't matter.
Does anyone know anything about this behavoir, or a way around it? If I have something like a save window, where the user clicks a save button, a blocking grid ("Saving...") is placed up while it saves, and then the whole "window" is closed, I'd like to avoid the user being able to queue up multiple save event clicks (this could lead to unpredictable program behavoir).
If you've ever worked with WinForms or WPF, this is expected behavior. Your button is broadcasting its Click event until your modal dialog covers it up. Unfortunately, there is some amount of time between your first click and when the modal dialog covers the button which allows multiple clicks to the original button.
You have two solution choices:
Disable the button after the first click and then re-enable after the modal dialog returns. You've already mentioned that this works.
Write code in the Event Handler of the button to determine if a modal dialog is already being displayed. This way, you're putting the responsibility in one location rather than splitting it up (disabling and re-enabling the button). This would be my preferred solution.
I think what you're seeing is the behaviour of Silverlight's routed events.
You can set the Handled property of the event arguments to true to prevent the event from bubbling.

Resources