Questions on UI for WPF Forum

1 answer

86 views

IsContentPreserved With BackgroundWorker

I have a situation where I am trying to add items to a collection from a background thread. The collection is bound to a RadTabControl. When I add the items through the UI thread I have no issues. When I do it from a backgroundworker the current tabs will all lose focus on whatever selected items they had.

Is there another option to show a busy indicator without having to use a background worker?

TabControl

answered on 13 Apr 2015

1 answer

47 views

RowIndex for Instant items not respecting TimeLineItemTemplate on Duration items

Perhaps I am going about this the wrong way. My timeline contains both items with a duration and items that are an instant in time. E.g. the duration items represent a project, and the instants are milestones in the project. I need to associate a duration with it's instants visually, so I am using the RowIndex to place them on the same row.

It worked fine until I introduced a TimeLineItemTemplate (below) which has a height greater than the default duration item height. The duration items appear as expected , but the instant items appear in their original vertical position.

I'm running the SDK samples browser's TimeLineItemRowIndex project, with the modifications mentioned above.

I've attached an image that shows the timeline with and without the template.

Thanks.

<DataTemplate x:Key="TimelineWithDurationTemplate">

<Border >

<Grid>

<Grid.RowDefinitions>

<RowDefinition Height ="Auto"/>

<RowDefinition Height="Auto" />

</Grid.RowDefinitions>

<TextBlock Grid.Row="1" Text="{Binding DataItem.Title}" Margin="0,4,0,0"/>

<Rectangle Grid.Row="0" Height="7" VerticalAlignment="Center" Fill="BlueViolet"/>

</Grid>

</Border>

</DataTemplate>

TimeLine

answered on 13 Apr 2015

9 answers

322 views

Deployment problems

I'm using the WPF controls and am trying to deploy my app using click-once deployment. Everything works as expected but when I run the app, the following message box appears:

You are running a trial version of RadControls for WPF.

Would you like to get details on purchasing a registered version?

I have purchased the registered version and have that version installed on my development machine. What do I need to do to deploy this correctly?

General Discussions

answered on 13 Apr 2015

12 answers

201 views

Fuzzy map images

Just started evaluating the Map control. I'm hosting the map control in a WinForms 3.5 project. The map images are blurry or fuzzy. I tried VS2010 Express and have the same problem. Attached a comparison. On the left is the map directly from OSM in the browser. On the right is RadMap.

I tried SnapToPixels and UseLayoutRounding and neither helped. I'm new to WPF, so is there something I missed?

Map

answered on 13 Apr 2015

0 answers

107 views

The alignment of radMenuItem pop-up

Hi team,

I find the pop-up containing the RadMenuItem is always aligning to the right against the clicked parent Menu Item. I want to it be automatically detect the boundary, just like the context menu windows desktop. Any solutions？

Wishes,

Jingfei

Menu

asked on 11 Apr 2015

0 answers

190 views

Mouse over state of RadButton

Hi team,

I am reading the implicite style of radbutton, and find that the storyborad of mouse over state is below

<VisualState x:Name="MouseOver">

<Storyboard>

<DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="OuterMouseOverBorder"/>

</Storyboard>

</VisualState>

And my question is why use UIElement.Opacity here instead just Opacity, like other states' storyborad do?

Thanks,

Jingfei

Buttons

asked on 11 Apr 2015

0 answers

35 views

How are the states of RadButton changing

Hi team,

When I try to customize the styles and templates of RadButton, I am blocked by the states transition of RadButton. There are focused and unfocused states, also there are normal, pressed and mouse over states. The normal, pressed and mouse over states are straightforward to comprehesive. However, i don't quite understand how the focused and unfocused states work when a user click the button.

Thanks,

Jingfei

Buttons

asked on 11 Apr 2015

1 answer

175 views

RadContextMenu click on a child item

Hi there,

I have following layouts

<Border>

<context menu is here>

<other child items>

</Border>

But i found that i need to carefully click the items to so that the context menu can be triggered. If clicking to a blank area, the upper level context menu is triggered.

How do i avoid this?

ContextMenu

answered on 11 Apr 2015

1 answer

76 views

Is RadPropertyGrid designing for cancel operations

I am wondering if there are easy ways to implement cancel logic in RadPropertyGrid?

Thanks,
Jingfei

PropertyGrid

answered on 11 Apr 2015

2 answers

162 views

How to know the index of one GridViewCell

Hi team,
I am using CellStyleSelector documented in this link. However, in the following code

public override Style SelectStyle(object item, DependencyObject container)

{

if (item is Club)

{

Club club = item as Club;

if (club.StadiumCapacity > 50000)

{

return BigStadiumStyle;

}

else

{

return SmallStadiumStyle;

}

return null;

}

I want to know the column index of the GridViewCell. I know the container object is type of GridViewCell. However i don't know how to continue. I read some class documentation, finding no proper ways. Any ideas?

Thanks,
Jingfei

GridView

answered on 11 Apr 2015