isratalk.ru

People Yahoo adult web cams

Cabinets are a vital component of your new kitchen, as they set the tone for the entire room.

Wpf combobox text not updating

Rated 3.90/5 based on 752 customer reviews
newest foreign dating sites Add to favorites

Online today

The Combo Box Display Member Path is bound to 'Full Name' and the combobox contains a list of Person objects.

The 'Full Name' property should be the same in the Text Block, Combo Box, and Combo Box dropdown list.

I'm kinda mystified: it seems like this bit should be working. I should note that in my datagrid, any simple data columns (e.g., "Data Grid Text Column") update the underlying data source just as you'd expect. MSDN seems to indicate that the default is set to Lost Focus in cases such as Text.

But any update to any of my templated columns ("Data Grid Template Column") or Combo Box columns ("Data Grid Combo Box Column") don't work: the underlying data source never gets updated. Toolkit datagrid and gotten this scenario to work -- but I've looked at all the sample code out there, and I'm doing basically what it says to do (within the constraints of my solution), so I'm scratching my head why this isn't working. In order for the Selected Item to bind properly I need to ensure that I have overriden the Equals method on my entity since under the hood, WPF is using this method to determine who is the Selected Item or not.

At that point, the displayed value returns to the original value, not to the newly selected value.

I've tried using Selected Item instead of Selected Value, but that ends up with the selected value not showing in the Combo Box. I changed the binding to Two Way, tried changing a whole host of other things.

UPDATE: I have found that if I change the selected item on the Combo Box to any other item, it now behaves as expected (in my code below I would switch from test1 to test2).

Changing selected items and changing back will show the updated text in the text box, but will still have the old value displayed in the combo box. it works as expected (this is just a simple mock-up, the real class has more than just a name so a list of strings will not work).

I think this was fundamentally your problem from the beginning which caused you to try to bind to Selected Value instead of Selected Item.

So when the user selects a node from the List View (above), the Combo Box updates to display the camera that node is using. If the user clicks on a new item on the combo box, I can stop with the debugger and examine the property is not changed, and the string displayed in the "Selection Box" is unchanged. If the user switches the node (using the List View defined earlier) AFTER making such a selection on the Combo Box, the Combo Box again doesn't display the new value, but the is correct. Camera1 found accessor Reflect Property Descriptor(Camera1) System. Data Warning: 102 : Binding Expression (hash=45045097): Replace item at level 2 with OTNode Info (hash=35582358), using accessor Reflect Property Descriptor(Camera1) System. Data Warning: 99 : Binding Expression (hash=45045097): Get Value at level 2 from OTNode Info (hash=35582358) using Reflect Property Descriptor(Camera1): Camera View Info (hash=49590542) System. Data Warning: 78 : Binding Expression (hash=45045097): Transfer Value - got raw value Camera View Info (hash=49590542) System. Data Warning: 80 : Binding Expression (hash=45045097): Transfer Value - user's converter produced Camera View Info (hash=49590542) System. Data Warning: 87 : Binding Expression (hash=45045097): Transfer Value - using final value Camera View Info (hash=49590542) System. Data Warning: 99 : Binding Expression (hash=51217614): Get Value at level 0 from Configuration Window (hash=63245828) using Runtime Property Info(Current Node): OTNode (hash=8023662) System. Data Warning: 99 : Binding Expression (hash=51217614): Get Value at level 0 from Configuration Window (hash=63245828) using Runtime Property Info(Current Node): OTNode (hash=8023662) System. Data Warning: 106 : Binding Expression (hash=51217614): At level 1 - for OTNode.

When i change the combo box, the source property is being updated fine, but when I change the source property or when the control is initialized, the event and the Trace Source output shows me that the binding detected it and transferred the value, its just that the combobox isn't reflecting it. EDIT: output from the trace source is this: System. Data Warning: 91 : Binding Expression (hash=23631369): Got Property Changed event from Report View Model (hash=52844413) System. Data Warning: 97 : Binding Expression (hash=23631369): Get Value at level 0 from Report View Model (hash=52844413) using Runtime Property Info(Sub Grouping View): Data Column View Model (hash=58231222) System. Data Warning: 76 : Binding Expression (hash=23631369): Transfer Value - got raw value Data Column View Model (hash=58231222) System. Data Warning: 80 : Binding Expression (hash=23631369): Transfer Value - implicit converter produced Data Column View Model (hash=58231222) System. Data Warning: 85 : Binding Expression (hash=23631369): Transfer Value - using final value Data Column View Model (hash=58231222) The object returned from your Sub Grouping View must be "equal" to one of the objects in the Combo Box. If they are functionally the same, but not returning true when compared then that's your problem. (cant award bounty for another three hours tho)It's hard to say definitively, since every situation is different.

Items (which means it must be in your Columns collection). You would need to either return the same object, or override the Equals method (and potentially the == and ! If this is your issue, it's the same problem as in this question. If you're View Model isn't used in Items Controls, then it may not matter if you override Equals. I think the whole answer is to implement full IEquatable that means implementing its Equals method and overriding Object. Get Hash Code methods as in this example (see the end of "Remarks" section - "Notes to Implementers" - and "Examples" section).