Once we select TreeViewItem, how can we can again deselect it?
TreeViewItem.IsSelected event is not called again if TreeViewItem is already selected.
I need this behavior on reselecting node in TreeView.
Any ideas?
This is an issue with Treeview control, you need to do workaround for the same.
Check this url
http://social.msdn.microsoft.com/forums/en-US/wpf/thread/36aca7f7-0b47-488b-8e16-840b86addfa3/
Related
How can I unselect all ListView items when I click outside the ListView in xaml for Windows Store Application?
When I add handlers to LostFocus event I unselect all but in case when I just want to chenge selected item LostFocus event also triggers.
Can anyone share the solution of this problem?
How about waiting a bit after LostFocus to see if it was indeed lost. Like by calling RunAsync on Dispatcher? Seems a bit like a hack, but it could work.
Anyone has a clue what might go wrong? This behaviour happens after I make some changes in the grid that associates properties to the items in the listview, select a different item, at save prompt I cancel and revert the selection, now if I try to select the already selected item event fires. I dont know why.
I do change the selection programatically when I revert the selection if I cancel at the save promt.
I managed to reproduce this problem. It's resolved if you set the MultiSelect property to false. However, if you need multiple selections, another solution will be needed.
A UserControl 'wrapper' around the ListView that handles the SelectedItemChanged event and only responds if the item is different is an option.
I am currently implementing drag and drop using the DataGrid provided in the Silverlight SDK and I want the user to be, easily, able to drag multiple items to another list.
The grid's selection gets updated on the MouseDown event so the only way the user have to drag multiple items is to press Shift while begining the drag operation. This is not really obvious and, for me, the natural way whould have been to just click the selected block of rows and drag them. To do so, the selection needs to be updated on the MouseUp event.
I've tried to derive from the DataGrid to inject my custom DataGridRows but the DataGrid doesn't expose a way to replace the type of rows it creates.
Anyone have a solution or ideas for this?
Thank you,
Jacques.
Yes, it's unfortunate that the selection is updated on mousedown. You will need to perform some work in the mousedown event to work around this. This codeproject article should help:
http://www.codeproject.com/Tips/338594/Drag-drop-multiple-selected-rows-of-datagridview-w
I have added a button in datarepeater. If clicked once, it executes code and Button.text should change to Yes. Clicked again, it executes the opposite code and button.text should change to No. Codes are being executed (I am using flag variable) but Button.text is not changing.
How to change this text. I am simply trying Button.text="Yes" but probably I need to give some reference of the row no. too. How to do it?
Please advise.
Thanks
Furqan
Please check this question:
Handle Button Click in WinForm DataRepeater C# Power Pack
Also: the CurrentItem property has a property named Controls that allows you to access its child controls like this: CurrentItem.Controls["OKButton"]
I have a strange problem with a DataGridView I'm using which is bound to a table in VB.net
I've added a checkbox column to allow a user to tick a bunch of rows that I can then loop through and save off to a different table. All the checkboxes are enabled by default. So it's really a case of unchecking the rows which aren't required.
However, the DataGridView re-enables any checkbox that I click after I click on a checkbox in another row. So in effect, only one row can be unchecked at a time.
I'm sure I'm probably missing something obvious here?
EDIT: I forgot to mention this is a Windows form, not an ASP.net application.
I think this is what is happening. Please check if you have checked IsPostback while binding the datagridview. I think the click event of the checkbox is initiating a postback and it is rebinding itself.
HTH
I think the grid is refreshing and then redrawing the default values...
I got it working in the end, although I'm not sure exactly how. It must have been some property that I tweaked in the grid