Is it possible to implement mouse click and drag selection box in GridView UWP Windows 10. Should it be done through simply drawing a rectangle, calculating coordinates of its points and evaluating position of other objects inside this box? Or are there some other ways?
Could you give a bit of sample code or a link?
The Universal Windows Platform does allow for Drag-And-Drop behavior. This includes drag from app and drop outside of app, drag and drop inside the app, and drag from outside the app and drop in the app.
The way to do this very simple (with room for heavy customization if you feel like it is needed): UWP XAML controls have a CanDrag and AllowDrop properties. The former is just a property of whichever control you're dealing with, the latter is an event that needs to be handled properly via code. If you want to further customize your app you can also handle the DragOver, which handles behavior when a dragged item is over a drop area but has not been "released" yet.
For further details and a bit example code please read Microsoft's own documentation for Drag-And-Drop. For a more built up example, you can check out the following Github repo.
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I have an add-in, developed using VSTO, that displays a custom task pane in Excel. This custom task pane holds a user control containing tree-view and other controls. I enabled AutoScroll for the user control and can see the traditional windows scroll bar when ever i re-size the control. However, i want the scroll bar to be similar to the scroll bars that exist in Thesaurus CTP in Excel 2013,when the CTP is in floating position and re-sized to smallest size, (i cant post images as i have reputation below 10). can any one provide pointers for this?
Also is there any way to restrict the minimum size of CustomTaskPane ?
Hello Guruteja,
You can handle the Resize event of the Control class to control the size of your form and set the min size programmatically.
It looks like you need to develop a custom control to imitate the built-in one. Or try searching for any third-party Windows Forms controls.
I want to create an application and chatting is involved. I am currently struggling to format existing controls or to create a control with the following conditions:
a container is docked to the main form's bottom
inside of that container, a button can be used to toggle a chat
component (e.g. text edit) to become either visible or invisible
if visible, the chat component is aligned with the button that was
pressed but does not force a resize on the container of the button
So basically I want to achieve a facebook or google hangouts like chat layout in vb.net that can also scale dynamically according to the current window size. Nevertheless it should always stick to the bottom.
Please keep in mind that this question is not about making the chat work but only the layout/design problem I am facing.
My current approach is the following:
FlowLayoutPanel docked to bottom with buttons
RichEdit as placeholders to simulate the chat component
My current layout
Is there an easier way to do what I want to do?
Set the anchors to the bottom of the page/panel.
On the designer, click the control you want to edit, find the Anchor property and change it to bottom (and left/right/top, whatever you'd like).
Both GridView and ListView have a nice "bounce-effect" when you try to scroll beyond the begin or end.
Some applications (on other platforms) use this "drag-beyond-end" gesture as a trigger for some actions, like loading more items.
How can I detect this "state" (=user is at the begin/end and tries to scroll beyond that) in Windows Store App using XAML/C# ?
The rubber-band effect cannot be detected by code in a Windows 8 app (verified with the XAML controls team).
One way you could do that would be by handling all the inputs and the rubber-band effect yourself, but that is a bit of work, it reduces scrolling performance and requires manual handling of input on any list elements as well, so I would only recommend it as a last resort.
Also note the problem of the mouse input scenario since mouse scrolling doesn't involve this pull-beyond-edge behavior.
If you just want to load more items when you reach the end of the GridView, implement the ISupportIncrementalLoading interface with your collection derived from ObservableCollection<T>. See the answer here Load more items on grid view scroll end.
I designed a web app for iPhone and am now trying my hands at a native Objective-C version, and I'd like to retain some continuity with my original design. Since my web version uses CSS, I was able to customize the color palette, even though the UI was designed to imitate a native iPhone UI. I'd like to use a similar color scheme for my native app, but it doesn't seem so easy out of the box. I've gone through a couple tutorials and played around a bit with Interface Builder, inspecting the individual settings available for each control. My biggest questions are:
Is it possible to (or how do I) change the color of a Round Rect Button?
Is it possible to (or how do I) change the color of cells in a Table View?
Where in the Cocoa Touch Library can I find the standard iOS UI buttons, e.g. the green "Call Back" and red "Delete" buttons in the native voice mail?
Thanks
Nope, I don't think so. And you probably shouldn't anyways. In my opinion it's better to rather stay consistent with the OS and not the web... What you can do is to use a custom image.
UITableViewCell has a property named backgroundView, which is only present if you have a grouped style. This view has -- just like every other view -- a background color. If you don't have this and want to color individual cells, build a custom cell where you put in a view as background view.
As far as I know, they are not publicly available. However, you may find a lot of template images etc on the web that you can use.
In a Silverlight 4 out of browser app (oob) is there any way to programatically move the main window after the application start-up event.
The reason / Use case: A user selects an option on a silverlight desktop gadget app, the apps window grows to accomodate extra details. If the app started very near the right of the screen the details are obscured/ fall off the edge of the screen and the user needs to drag the window to the left. When the window returns to its smaller state it is now positioned to far left so the user needs to drag the window right again. It would be convention for the app to move itself back and forth automatically to accomodate the details.
Thanks.
Avida - yes you can move the MainWindow using Top/Left properties as long as WindowsStartupPosition is Manual
I will leave the answer below to show my shame... sorry I did not read the question properly.
If you mean the position within the web page, yes you can.
Silverlight can execute Javascript on the hosting page to change attributes (including the size or position of the Silverlight plugin itself).
I have used this feature to resize a Silverlight 3 application to fit its content, enabling use of the browser scrollbars to move down a large app (not needed nowadays with full mousewheel support, but the principle is the same).