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2 answers
111 views

Hi,

I am currently using the RadGridView and using the Office2016 theme, I am trying to switch to VisualStudio2013 theme but have discovered that it does not seem to work with ColumnWidth="*" and more generally when using something such as Width="25*" within a column header within a listbox itemtemplate. I also noticed that when stretching the window out and back the visualstudio2013 theme flickered a lot.

I have made a very simple project which highlights the issue, it uses the latest UI for WPF from the website.

It can be found here : https://www.dropbox.com/s/i9fp4g4a8bilqv9/TelerikRadGridViewBug.zip?dl=0

Also attached a screenshot showing the program running.

Thanks,
Martin

Sia
Telerik team
 answered on 16 Feb 2018
3 answers
207 views

Is there a way to add a text indicator inside a radial gauge?

I have already defined a radial gauge that shows values from 0 to 100 on its radial scale, and the current value in the center of the gauge. I would also like to add a similar gauge that shows text instead numbers in the center. E.g. "Processing", "Calculating", "Complete", ... Human readable status text.

RadialScale.Indicators seems to be a UIElementCollection, so I tried adding a TextBlock object in the collection. However, it is not shown.

Martin Ivanov
Telerik team
 answered on 16 Feb 2018
1 answer
670 views

I have a GridViewToggleRowDetailsColumn in the RadGridView. Now I want two things.

  1. Using down-arrow and up-arrow instead of plus and minus icon. The down-arrow is attached.
  2. I want the icon stick on the top. Now it is in the middle vertically.

Thanks for the sample code help.

 

Martin
Telerik team
 answered on 16 Feb 2018
11 answers
682 views
Greetings,

Today, we upgraded from the Q3/2010 controls to the Q2/2011 controls on our application. For the most part, everything upgraded without any problems. However, there's one discrepancy that has me stumped. I'm not sure about the best way to resolve this, so i wanted to get your help.

To illustrate the problem, I have a very simple RadGridView defined. The second column has a Background of "GhostWhite":

<Telerik:RadGridView x:Name="GridView" AutoGenerateColumns="False" Width="500" Height="500">
     <Telerik:RadGridView.Columns>
          <Telerik:GridViewDataColumn UniqueName="DateTime" Header="Date/Time"
               DataMemberBinding="{Binding DateTime}" IsReadOnly="True"
               DataType="{x:Type System:DateTime}" IsFilterable="True" />
          <Telerik:GridViewDataColumn UniqueName="Value" Header="Value"
               Background="GhostWhite" DataMemberBinding="{Binding Value}"
               DataType="{x:Type System:Decimal}" IsFilterable="True" />
            </Telerik:RadGridView.Columns>
        </Telerik:RadGridView>

When I populate my grid with items, the cells in the second column are missing the left side of their border. If I remove the Background attribute on the second column the cell's left side is back and looks just fine.

I was able to use Expression Blend/WPF Inspector to locate the "PART_CellBorder" border. It looks like the BorderThickness here may not account for the left side.

Is this by design? Is there are work around?

Thanks!
Stefan
Telerik team
 answered on 16 Feb 2018
2 answers
79 views

When I'm opening a RadCombobox, focus an item with the mouse, moving the mouse pointer out of the Combobox and thus loosing the focus, SelectionChanged is fired when I'm pressing the Enter key. I'd expect that no item would be selected in this case since no item is visibly highlighted, but instead an item gets selected (probably the item that was highlighted last by moving the mouse pointer).

Is this behavior intended?

Michael
Top achievements
Rank 1
 answered on 16 Feb 2018
2 answers
87 views

Hello there,

I am using the TimeSpanPicker within a ListBox ItemTemplate. I am changing the watermark. This works prefectly outside the template but when in a template does not work at all , my string is ignored and the default is used. I have also tried to use DynamicResource but found the same issue.

I have made a very simple project which highlights the issue, it uses the latest UI for WPF from the website.

It can be found here : https://www.dropbox.com/s/3ijhj346w0pjg1f/Telerik%20bug.zip?dl=0 

Also attached a screenshot showing the program running.

Thanks,

Martin

Martin
Top achievements
Rank 2
 answered on 16 Feb 2018
1 answer
208 views
I have two views.  One with a RadGridView, the other with a RadListBox.  They both have the same view model, and same ItemsSource.  I followed the ListBox Grouping and Filtering example.  When I have a collection of 2000 items, grouping is noticeably slower in the RadListBox than the RadGridView, i.e. 4 times slower, even when the RadListBox's ItemTemplate contains just a TextBlock.  Any idea why this is, and how to speed up grouping in the RadListBox?  Thanks.
gordon
Top achievements
Rank 1
 answered on 15 Feb 2018
1 answer
120 views

Hi,

Teleriks outdated documenation caused me, again, to lose some time finding solution.

https://docs.telerik.com/devtools/wpf/controls/radcontextmenu/how-to/use-radcontextmenu-with-radgridview

Here is implementation of RadContextMenu for RadGridView, step-by-step guide is clear and explains everything. But menu implemented in this way to my app didn't work. There is important property, not present in documentation:

BasedOn="{StaticResource RadMenuItemStyle}"

wwich changes Example 4

<Style x:Key="MenuItemContainerStyle" TargetType="telerik:RadMenuItem">
    <Setter Property="Header" Value="{Binding Text}"/>
    <Setter Property="ItemsSource" Value="{Binding SubItems}"/>
    <Setter Property="IsEnabled" Value="{Binding IsEnabled}"/>
</Style>

to

 

<Style x:Key="MenuItemContainerStyle"
                   TargetType="telerik:RadMenuItem"
                   BasedOn="{StaticResource RadMenuItemStyle}">
                <Setter Property="Header"
                        Value="{Binding Text}" />
                <Setter Property="ItemsSource"
                        Value="{Binding SubItems}" />
                <Setter Property="IsEnabled"
                        Value="{Binding IsEnabled}" />
            </Style>

 

Please, update your documentation to save others time. 

 

Best Regards,

Mateusz

 

Vladimir Stoyanov
Telerik team
 answered on 15 Feb 2018
1 answer
154 views

I'd love to see this implemented, it would be a natural.

Thanks in advance,
Steve

Stefan
Telerik team
 answered on 15 Feb 2018
3 answers
133 views

Is is possible to create bar scale as in the attached image?

Currently I have done it this way:

<Border
    Background="#FF1B1B1F"
    CornerRadius="24">
    <telerik:RadVerticalLinearGauge telerik:StyleManager.Theme="Green">
        <telerik:VerticalLinearScale MajorTickBackground="DeepSkyBlue" MiddleTickBackground="DeepSkyBlue" MinorTickBackground="DeepSkyBlue" MajorTickOffset="-10" MiddleTickOffset="-10" MinorTickOffset="-10" Min="0" Max="100" LabelLocation="Inside" MajorTickLocation="Inside" MinorTickLocation="Inside" MiddleTickLocation="Inside" MiddleTicks="2" MinorTicks="1" LabelFormat="{}{0:F0} %" FontSize="20" Foreground="#FF9EABAA" Fill="{x:Null}">
                <telerik:VerticalLinearScale.Indicators>
                    <telerik:BarIndicator BorderBrush="{x:Null}" Value="100" Background="#FF323232"/>
                    <telerik:BarIndicator BorderBrush="{x:Null}" Value="70" Background="DeepSkyBlue"/>
                </telerik:VerticalLinearScale.Indicators>
        </telerik:VerticalLinearScale>
    </telerik:RadVerticalLinearGauge>
</Border>

 

I cannot change the width of either the VerticalLinearScale or the BarIndicator objects. So to accomplish what I want, I hid the scale object and added two indicators. The first is the "base color" and the second the actual value indicator. In the end it's just rendering objects, but is there a better way to do this? Not the biggest fan of these "bubble gum solutions".

Also, is there a way to align the whole thing center? So that the bar scale and the tick labels together are always in the center during resizing. I would prefer not to use Padding. Currently there's wasted empty space on the left which makes the whole thing larger than it should be.

And is there a way to round the bar scale itself? Currently I'm rounding the border object, but when the whole thing is resized small enough, the bar scale's sharp corners start to render outside the border's rounder corners.

Sia
Telerik team
 answered on 15 Feb 2018
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