Joseph LeBlanc
Top achievements
Rank 1
Rank 1
Joseph LeBlanc
asked on 28 Apr 2010, 05:14 PM
Hi,
For a while now I've been using a TreeView inside of a ComboBox that I got from the Telerik blog here http://blogs.telerik.com/valerihristov/posts/09-08-27/treeview_in_combobox_take_3_silverlight_3_wpf_and_radcontrols.aspx
It was working fine up until recently when we updated to the latest version of the Telerik WPF controls (Q1 2010). Now what happens is the ComboBox will no longer display the text of the chosen item, it remains blank and I can't figure out why.
Any help is greatly appreciated, thanks!
Joe,
For a while now I've been using a TreeView inside of a ComboBox that I got from the Telerik blog here http://blogs.telerik.com/valerihristov/posts/09-08-27/treeview_in_combobox_take_3_silverlight_3_wpf_and_radcontrols.aspx
It was working fine up until recently when we updated to the latest version of the Telerik WPF controls (Q1 2010). Now what happens is the ComboBox will no longer display the text of the chosen item, it remains blank and I can't figure out why.
Any help is greatly appreciated, thanks!
Joe,
4 Answers, 1 is accepted
0
Hello Joseph,
I would strongly recommend using RadDropDownButton instead of RadComboBox for such scenarios. This way you could put the TreeView inside the dropdown without customizing control templates:
http://demos.telerik.com/silverlight/#Buttons/DropDownButton
If the change is impossible for you, please, let me know and I will try to prepare a sample.
All the best,
Valeri Hristov
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.
I would strongly recommend using RadDropDownButton instead of RadComboBox for such scenarios. This way you could put the TreeView inside the dropdown without customizing control templates:
http://demos.telerik.com/silverlight/#Buttons/DropDownButton
If the change is impossible for you, please, let me know and I will try to prepare a sample.
All the best,
Valeri Hristov
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.
0
Joseph LeBlanc
Top achievements
Rank 1
Rank 1
answered on 03 May 2010, 06:25 PM
Is the RadDropDownButton available for WPF? I'm not using Silverlight in this particular application.
0
Accepted
Hello Joseph,
Sorry for the wrong link. Yes, the DropDownButton is available for WPF:
http://demos.telerik.com/wpf/?/Buttons/DropDownButton
Sincerely yours,
Valeri Hristov
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.
Sorry for the wrong link. Yes, the DropDownButton is available for WPF:
http://demos.telerik.com/wpf/?/Buttons/DropDownButton
Sincerely yours,
Valeri Hristov
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.
0
Joseph LeBlanc
Top achievements
Rank 1
Rank 1
answered on 04 May 2010, 04:53 PM
Awesome, thanks!
I'll definitely look at switching over to that new control, but I did manage to fix the issue with what I'm using now. In the content presenter I had to change the ContentTemplate to use the ItemTemplate instead of the SelectionBoxItemTemplate, as the SelectionBoxItemTemplate wasn't being set to the correct data template.
<ContentPresenter x:Name="ContentPresenterElement"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
Margin="{TemplateBinding Padding}" IsHitTestVisible="False"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
ContentTemplate="{TemplateBinding ItemTemplate}"
Content="{Binding SelectedValue, ElementName=treeView}" />
I'll definitely look at switching over to that new control, but I did manage to fix the issue with what I'm using now. In the content presenter I had to change the ContentTemplate to use the ItemTemplate instead of the SelectionBoxItemTemplate, as the SelectionBoxItemTemplate wasn't being set to the correct data template.
<ContentPresenter x:Name="ContentPresenterElement"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
Margin="{TemplateBinding Padding}" IsHitTestVisible="False"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
ContentTemplate="{TemplateBinding ItemTemplate}"
Content="{Binding SelectedValue, ElementName=treeView}" />