How to activate all the parent(i.e. one tab) of a UserControl in WPF
For an error validation mechanism, I've to be able to "navigate" in my application to one specific pane.
Currently I've one "SelectedNode" and tries to focus the control that is bound to this property(basically, I've an AttachedProperty to set the IsFocus, based on the name).
My issue is that sometimes this page contains tabs. And it appears that the control cannot be focused if it's hidden(not in the active tab).
Is there a way from an UserControl to go up in its visual tree to "activate" all his parent?
I cannot just bind the "SelectedIndex" of my tabcontrol in the viewModel, for a lot of reasons:
- The UserControl that has the tab has one sub user control for each tab, so the usercontrol doesn't know what is in which usercontrol
- Putting such things in the ViewModel is wrong, the ViewModel should not have to know that it's displayed in tabs or all in the same pane
Thanks!
c# wpf xaml tabcontrol
asked Nov 16 '18 at 9:50
J4NJ4N
6,16025114209
|
show 2 more comments
For an error validation mechanism, I've to be able to "navigate" in my application to one specific pane.
Currently I've one "SelectedNode" and tries to focus the control that is bound to this property(basically, I've an AttachedProperty to set the IsFocus, based on the name).
My issue is that sometimes this page contains tabs. And it appears that the control cannot be focused if it's hidden(not in the active tab).
Is there a way from an UserControl to go up in its visual tree to "activate" all his parent?
I cannot just bind the "SelectedIndex" of my tabcontrol in the viewModel, for a lot of reasons:
- The UserControl that has the tab has one sub user control for each tab, so the usercontrol doesn't know what is in which usercontrol
- Putting such things in the ViewModel is wrong, the ViewModel should not have to know that it's displayed in tabs or all in the same pane
Thanks!
c# wpf xaml tabcontrol
asked Nov 16 '18 at 9:50
J4NJ4N
6,16025114209
Maybe you could use some kind of attached behavior, which will (on "IsActive" changed event) go up on visual tree and activate each parent element?
– vasily.sib
Nov 16 '18 at 9:58
If you know how to "activate each parent element", I definitely have the structure for the rest
– J4N
Nov 16 '18 at 9:59
There is aVisualTreeHelper.GetParent()method. Take a look here
– vasily.sib
Nov 16 '18 at 10:03
@vasily.sib Ok, and how do you "activate"?
– J4N
Nov 16 '18 at 11:25
some kind offoreach (var parent in GetParents(AssociatedObject)) { if (parent is TabItem tabItem) tabItem.IsSelected = true; }
– vasily.sib
Nov 16 '18 at 16:27
|
show 2 more comments
For an error validation mechanism, I've to be able to "navigate" in my application to one specific pane.
Currently I've one "SelectedNode" and tries to focus the control that is bound to this property(basically, I've an AttachedProperty to set the IsFocus, based on the name).
My issue is that sometimes this page contains tabs. And it appears that the control cannot be focused if it's hidden(not in the active tab).
Is there a way from an UserControl to go up in its visual tree to "activate" all his parent?
I cannot just bind the "SelectedIndex" of my tabcontrol in the viewModel, for a lot of reasons:
- The UserControl that has the tab has one sub user control for each tab, so the usercontrol doesn't know what is in which usercontrol
- Putting such things in the ViewModel is wrong, the ViewModel should not have to know that it's displayed in tabs or all in the same pane
Thanks!
c# wpf xaml tabcontrol
asked Nov 16 '18 at 9:50
J4NJ4N
6,16025114209
For an error validation mechanism, I've to be able to "navigate" in my application to one specific pane.
Currently I've one "SelectedNode" and tries to focus the control that is bound to this property(basically, I've an AttachedProperty to set the IsFocus, based on the name).
My issue is that sometimes this page contains tabs. And it appears that the control cannot be focused if it's hidden(not in the active tab).
Is there a way from an UserControl to go up in its visual tree to "activate" all his parent?
I cannot just bind the "SelectedIndex" of my tabcontrol in the viewModel, for a lot of reasons:
- The UserControl that has the tab has one sub user control for each tab, so the usercontrol doesn't know what is in which usercontrol
- Putting such things in the ViewModel is wrong, the ViewModel should not have to know that it's displayed in tabs or all in the same pane
Thanks!
c# wpf xaml tabcontrol
c# wpf xaml tabcontrol
asked Nov 16 '18 at 9:50
J4NJ4N
6,16025114209
asked Nov 16 '18 at 9:50
J4NJ4N
6,16025114209
asked Nov 16 '18 at 9:50
J4NJ4N
6,16025114209
asked Nov 16 '18 at 9:50
J4NJ4N
6,16025114209
asked Nov 16 '18 at 9:50
J4NJ4N
6,16025114209
6,16025114209
Maybe you could use some kind of attached behavior, which will (on "IsActive" changed event) go up on visual tree and activate each parent element?
– vasily.sib
Nov 16 '18 at 9:58
If you know how to "activate each parent element", I definitely have the structure for the rest
– J4N
Nov 16 '18 at 9:59
There is aVisualTreeHelper.GetParent()method. Take a look here
– vasily.sib
Nov 16 '18 at 10:03
@vasily.sib Ok, and how do you "activate"?
– J4N
Nov 16 '18 at 11:25
some kind offoreach (var parent in GetParents(AssociatedObject)) { if (parent is TabItem tabItem) tabItem.IsSelected = true; }
– vasily.sib
Nov 16 '18 at 16:27
|
show 2 more comments
Maybe you could use some kind of attached behavior, which will (on "IsActive" changed event) go up on visual tree and activate each parent element?
– vasily.sib
Nov 16 '18 at 9:58
If you know how to "activate each parent element", I definitely have the structure for the rest
– J4N
Nov 16 '18 at 9:59
There is aVisualTreeHelper.GetParent()method. Take a look here
– vasily.sib
Nov 16 '18 at 10:03
@vasily.sib Ok, and how do you "activate"?
– J4N
Nov 16 '18 at 11:25
some kind offoreach (var parent in GetParents(AssociatedObject)) { if (parent is TabItem tabItem) tabItem.IsSelected = true; }
– vasily.sib
Nov 16 '18 at 16:27
Maybe you could use some kind of attached behavior, which will (on "IsActive" changed event) go up on visual tree and activate each parent element?
– vasily.sib
Nov 16 '18 at 9:58
Maybe you could use some kind of attached behavior, which will (on "IsActive" changed event) go up on visual tree and activate each parent element?
– vasily.sib
Nov 16 '18 at 9:58
If you know how to "activate each parent element", I definitely have the structure for the rest
– J4N
Nov 16 '18 at 9:59
If you know how to "activate each parent element", I definitely have the structure for the rest
– J4N
Nov 16 '18 at 9:59
There is a
VisualTreeHelper.GetParent() method. Take a look here– vasily.sib
Nov 16 '18 at 10:03
There is a
VisualTreeHelper.GetParent() method. Take a look here– vasily.sib
Nov 16 '18 at 10:03
@vasily.sib Ok, and how do you "activate"?
– J4N
Nov 16 '18 at 11:25
@vasily.sib Ok, and how do you "activate"?
– J4N
Nov 16 '18 at 11:25
some kind of
foreach (var parent in GetParents(AssociatedObject)) { if (parent is TabItem tabItem) tabItem.IsSelected = true; }– vasily.sib
Nov 16 '18 at 16:27
some kind of
foreach (var parent in GetParents(AssociatedObject)) { if (parent is TabItem tabItem) tabItem.IsSelected = true; }– vasily.sib
Nov 16 '18 at 16:27
|
show 2 more comments
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Maybe you could use some kind of attached behavior, which will (on "IsActive" changed event) go up on visual tree and activate each parent element?
– vasily.sib
Nov 16 '18 at 9:58
If you know how to "activate each parent element", I definitely have the structure for the rest
– J4N
Nov 16 '18 at 9:59
There is a
VisualTreeHelper.GetParent()method. Take a look here– vasily.sib
Nov 16 '18 at 10:03
@vasily.sib Ok, and how do you "activate"?
– J4N
Nov 16 '18 at 11:25
some kind of
foreach (var parent in GetParents(AssociatedObject)) { if (parent is TabItem tabItem) tabItem.IsSelected = true; }– vasily.sib
Nov 16 '18 at 16:27