I'm trying to make an application where I have this combobox that automatically opens and closes on mouse enter and mouse leave events respectively and then gets the value of the combobox before i leave it.
I already have the dropdown behavior as given by someone who posted it online. But now I need to get the value of my combobox item without clicking the mouse. I've tried selectedvalue or selecteditem but all seems to require mouse clicking. Is there any way of getting the value of the combobox where the mouse points to before I leave/close the combobox?
You can use labels for the combobox items.
Add 'MouseMove' event and in the event take the label text.
Here is an example how to implement very closely connected behavior: ComboBox MouseLeave MouseEnter.
Related
I have a listbox which I have used as an autocomplete list in my C# windows application, which has events like MouseClick and Leave.
On MouseClick, I want to set the selected value to a textbox.
On Leave, I want to hide the listbox
Now, the problem is, when I click on a value in listbox, the leave event is fired and listbox gets hidden without setting the value. If I unset the leave event, things work as expected.
NOTE: The purpose of Leave event is to only hide the listbox when some other control is clicked. The autocomplete textbox is implemented using this reference: WinForms | C# | AutoComplete in the Middle of a Textbox?
I have a DataGrid with programmaticaly added rows (items) by adding an ItemSource.
I do not want the user to edit the cells so I set IsReadOnly = true;.
But I want them to click on cells and output which cell was clicked.
I was searching for a Clicked event and was surprised there is no such event for a DataGrid. I want a behaviour like buttons where it doesn't matter if it's clicked by the mouse, space bar, enter or whatever else the system accepts as a "Click".
So how can I achieve that?
Whatever is in the cell template (TextBlock, for instance) could be styled to handle the PreviewMouseUp event and pull the information you want from the control or bound object. The click event is specific to Button, TextBox and other controls that deal with mouse capture. Here is a link that discusses the dilemma you are facing: http://blog.scottlogic.com/2008/12/02/wpf-datagrid-detecting-clicked-cell-and-row.html. He provides examples on how to accomplish the task at hand.
I have a listview for displaying a table inside of a button. I have a click event assigned to the button, but when the user clicks on the list view, a row is selected on the list view and the mouse click is never bubbled up to the button.
I'm stuck at this point, and need a way to solve this. All the examples I've seen online are for placing a button inside the listview. How do I make this work?
Set the IsHitTestVisible property to false on your ListView. Since it is a control that normally processes click events, doing this will have it ignore them.
If you don't want the items to be selectable in the first place, you could make the List View unable to receive Focus. Just set the Focusable property to false.
With the List View unable to receive focus, then I would expect the mouse event to bubble up to the button.
I'm working with winforms comboboxes. When I select any item in combobox I've raised an event. But control can not come outside. When I scroll the mouse the selected event changing every time.
how to prevent this?
The mouse scrolling actually does change the item selection in the combobox and hence your event is fired, you don't want your event handling code on mouse scroll?
If the problem is that you cannot use the mouse wheel to open drop-down portion of the combobox, then you can use ComboBox.DroppedDown property.
I'm having issues using a GridView as a ListView's View, what I want to do is fire an event when a user makes a selection from a combobox within the Gridview and pass the selected item within the event.
My first issue is that when the user clicks the combobox within a row, the row isnt selected (meaning the selecteditem stays null unless they click elsewhere first). Is there a clean way to do this without trying to catch mouse clicks or anything?
Secondly theres no selectionchangecommited event on a WPF combobox, is there a cleaner way to check if a user has manually selected an option other than checking if the combobox is enabled?
Thanks
I am seeing a similar behavior. My hypothesis is that one or more layers of the DataTemplate of each item in the list is swallowing the RoutedEvent that should have resulted in a new selection. Is it possible to, in a generic way, tell the items in the DataTemplate that they should never stop the event from bubbeling or tunneling further, without having to override every focus-triggering event handler in code behind?
I 'solved' my issue by using the WPF Toolkit grid (http://wpf.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=29117) and a series of selected items, which is probably a cleaner solution anyway.
Doesn't explain the behavior of the GridView, which is to me unusual
Original link has died, believe this to be the one https://github.com/xceedsoftware/wpftoolkit/wiki/DataGrid