I need the ability for a user to press and set an ListView item's checkbox independently of clicking on the item. If they press on the checkbox I will add/remove the checkmark and take some action. If they press on the item text I can take another action.
I can do this with a ListBox no problem with built in functionality. I can't figure out how to do it with a ListView. How is it done?
I can put the following code in the ListView1ItemClickEx to know when the user is clicking on the image. Maybe I can just change the image to a checkmark?
if (ItemObject->Name == "I") {
ShowMessage("Item Image clicked");
}
But I don't know how to change that particular items image (e.g. I could just toggle between a checkmark image and an unchecked image) at runtime.
The picture below is for clarity. Clicking anywhere in the red box will change the items checkbox. For the ListBox clicking anywhere in the blue box will fire the OnClick event and not change the checkbox. I want that same behavior in the ListView.
Ok, Remy answered this related question and it helped me solve this issue. Now I can make the ListView have a checkbox that functions like that of the ListBox. I do it by toggling the item image whenever the user presses (or clicks on) the image area of an item.
When the user clicks an items image I trap it (per Remy's code in the ListView1ItemClickEx event) and toggle it from 0->1 or 1->0 in a vector at reference ItemIndex (e.g. myVector[ItemIndex] = 0) and then I completely rebuild the ListView (clear it and build from scratch).
I thought I'd have to remember where in the list I had scrolled down to and after refreshing the ListView I'd have to scroll to that point in code - but, that isn't the case. I don't know why but after the refresh I'm still at the point in the list where I clicked an item image. It makes it work and feel exactly like a check box.
It works great in iOS, Android, and Windows.
p.s. I forgot to mention that you need to treat any Header's like they are items in your vector that keeps up with each items' image (0 or 1). Otherwise adding headers gets you out of sync and clicking an item's image will toggle some other item's image.
Related
Is there a way, after selection of a color, to programmatically hide the color picker of the TComboColorBox? I've searched on the web and Embarcadero community but couldn't find a way to do this.
The answer is no, there is no designed way to hide (collapse) the popup programmatically. And you did not explain why you think it would be necessary to have.
Keep in mind that there are 4 subcontrols, that the user may want to use:
a THueTrackBar,
an alpha channel trackbar,
a color quad, and
a hex color value edit box.
An automatic collapse of the popup would be just annoying.
The user can at any time decide to close the popup simply by clicking on the constantly visible bar.
With reference to your comment:
After your answer, I realized that I must implement a color picker component that shows a rect containing a TComboColorBox and a TButton as childs. Clicking the child button, in turn, hides the container rect itself.
I have told you twice that the user can close the popup part of the TComboColorBox simply by clicking on the component (the base part of it).
In fact, the user can click anywhere outside of the popup window in order to close the popup window. The popup is closed immediately when the focus moves away from it.
In my opinion there's no need for a special "Close" button.
In my application I have a multi step form wizard in which
the next button is disabled unless all the required fields are entered.
Some fields require extra validation such as the directory picker,
for which I have to check whether the directory exists or not.
To ease the user experience I need to show an "Invalid directory" tooltip
next to the directory text field.
I would like to show the tooltips when the user tries to click/enter the disabled
next button.
Is it possible to capture events performed on a disabled button in JavaFX?
public void nextEntered(Event event) {
Button button = (Button)event.getSource();
if(button.isDisabled()){
validate(currentTab);
}
}
I had a similar problem where I wanted to show a tooltip of a disabled field's value when the user moused over that disabled field.
I ended up putting a blank label over the disabled field and attaching a mouse event to that.
In the case of a button, you can just give the dummy label mouse transparency when the button becomes enabled so the user can click the button.
(You might even be able to bind the label's mouse transparency property to the button's enabled property but I'm not sure.)
I know this was asked a year ago but maybe it will help someone else.
I have some pages where I have a kendo ui grid (wired up to full CRUD services), but use a separate Kendo UI Toolbar control (as opposed to the toolbar configuration in the grid itself). I have a number of different buttons/menus on the toolbar, but am seeing a strange behavior when calling saveChanges() on the grid. If a cell is being edited when the save button is clicked, the grid is saved, but the edited value is lost (it reverts back to where it was). The following details what I see in different situations:
When using a save button configured in the grid (command: "save"), any changes in a cell being edited are committed with the save.
When using a plain html button that calls the saveChanges() method of the grid, any changes in a cell being edited are committed with the save.
When using a save button configured in a toolbar control, the changes in a cell being edited are LOST when saveChanges() is called.
The following jsbin shows the behavior of all three:
http://jsbin.com/jazobexatu/2/edit?html,js,output
I have tried calling the save from the toolbar button a number of different ways (even trying to trigger the click event of the external button), but nothing seems to correct the behavior. I also tried calling closeCell() on the grid (to try to force the value back into the data, but that doesn't work either). I haven't been able to debug the javascript enough to figure out what is different. I'm hoping someone with a deeper understanding of these controls can help me out.
For some reason, the mouse down event on the toolbar button doesn't cause a blur on the editor.
You can try it yourself by clicking in the cell to edit it, then click and hold the mouse button down on the "normal" button. The editor closes on mouse down, causing a blur of the editor, and persists the change.
If you do the same thing, click and hold mouse down, on the toolbar button, the editor stays open.
I've been poking through the source, but haven't figured out exactly why this happens. My best guess would be that the mousedown handler on the toolbar prevents the event from bubbling or running its default action and the editor doesn't blur.
Additional detail: On mousedown on the grid header button and the normal button, the focused element changes (which is what causes the editor blur). But on mousedown of the toolbar button, the editor input element still has the focus.
Shifting the focus on mousedown of the toolbar might be a workaround.
Sort of a weird hack, but this works in Chrome (any should in any browser that supports activeElement
click: function (e) {
$(document.activeElement).blur();
$("#grid").data("kendoGrid").saveChanges();
}
I've been struggling for weeks trying to crack this nut so I'm not sure if it's impossible, or if it's my lack of coding chops... or both. I'm not a programmer and I'm a newbie to Dojo Toolkit.
I have a site using the BorderContainer layout. I'm trying to create an effect where I can use a button to open and close a dropdown type box that will contain controls. I need this dropdown to be hidden on page load, and then open when you click the button.
My problem is that when I open the dropdown, it pushes the content pane below it off the bottom of the browser window. I need the lower ContentPane to stay fit within the remaining space of the browser window when the dropdown opens. Additionally, I want the dropdown to sit outside of the scrollable container for the content below it, which is why I have it set up to sit outside a nested BorderContainer below it.
I've created a simplified version of the code to demonstrate my challenge (see link below). If you load the page you can see the center ContentPane scrolls the content. But, if you then click on the button, a dropdown div expands above the content. Then when you scroll, you'll notice that you can't see the full pane because it's in no-man's-land below the bottom of the browser window. I assume that because the div is set to display:none on load, it's size is not accounted for on page load. Then, when you open it by pressing the button, it's size is additive and the pane below doesn't know how to resize or account for the new element.
I've tried using the visibility attribute, but that leaves a gap for the div when it's still closed. I've tinkered with some code that controls the height that shows promise, but each of my dropdown boxes will be different sizes so I'd prefer that the height be set to "auto" rather than a specified pixel size.
Does anyone have any idea how I can accomplish this so that the lower pane will fit in the space without pushing off the screen?
Here's a sample of the page:
http://equium.com/scaffold.html
(I had some problems trying to insert the full HTML page here as a code sample so if that's a preferable way to handle it, and someone can let me know the best way to embed all of that code, I'd appreciate it.)
Thanks is advance, I'd really apprecaite anyone's feedback.
You might want to take a look at dojox.layout.ExpandoPane (though be warned I think it has only worked properly for top and left regions for a while).
Also, I'd suggest simplifying/altering your layout a bit. See example here:
http://jsfiddle.net/taFzv/
(It'd probably need some tweaking to get exactly what you want.)
The real issue you're having is probably that the BorderContainer has no idea that parts of the view resized. ExpandoPane takes care of that by telling the BorderContainer to re-layout after its animation completes.
It works under IE8.0. When dropdown box open, just keep pressing mouse from page and drag to bottom, you could see the content was pushed to out of page. It looks the browser could not detect it and could not add it to "scroll bar" account.
I would suggest taking out all BorderContainers except your top level one, the one with mainPage as the id.
Place your {stuff here} div into the mainPage BorderContainer, after the ContentPane with the Close/Open button. Make sure you make it dojotype dijit.layout.ContentPane, set up layoutpriority, and set region to top. Set the height to 0/x when clicking the Open/Close button, instead of setting display.
Try your page again. If that doesn't fix it, you probably need, a call to layout, resize, or both to indicate to the BorderContainer that it needs to evaluate all its children and size the "center" pane properly. Something like dijit.byId("mainPage").layout(); Do this any time someone presses the Close/Open button, after you have changed the height of any BorderContainer children.
Maybe the dijit.form.DropDownButton would fit your needs. When click the button a tooltip is displayed that can be filled with any content you want. Just as you specified, the dropdown tooltip is only displayed when you click the button, and it doesn't mess with the underlying layout at all. The tooltip sits "on top" of the page.
I have page containing 4 textboxes and a button. The content is within ScrollViewer. When user goes to the last textbox, the button below it is 50% visible. So, to click it, user has to click on non-focusable area to hide the keyboard and then click on button.
Is there any way to move the ScrollViewer up? Or move the content up so that the button below focused textbox can be seen 100%?
The solution is to remove the buttons on the page and replace them with buttons in the ApplicationBar as this is always viewable below the SIP.
If this is not a solution you can implement (from a design view-point there is no reason to not do this but sometimes these decisions come from elsewhere) then you could look to use the ScrollToVerticalOffset method to try and bring the desired item into view.
I would suggest you read Alex Sorokoletov's article on how to transform the view. It might be of help for your problem.