I'm using a RadTimeBar that only displays 24 hours of data at a time. Below is a sample application to reproduce the issue I'm having:


And the XAML:



On the initial load, all works fine. In the scroller at the bottom, you can re-size the selection as normal (dragging on each size of the scroll bar), and it won't let you zoom too far in.

But I have to be able to change the period on the fly. I have a datePicker that allows the user to change the date for the data in the timebar. So I need to change the 'PeriodStart' and 'PeriodEnd' from code-behind. In the example above, I just hard-coded it in a button click. After I do this, it seems as if you can zoom in infinitely and the application eventually crashes with an overflow exception "Arithmetic operation resulted in an overflow". Sometimes, it throws the exception immediately after zooming in too far. Sometimes you have to drag/zoom in and out a few times.

Is there another way to change 'PeriodStart' and 'PeriodEnd' after it is initially loaded? Or is there a way to 're-initialize' the control after changing the period properties, so that you can't zoom in infinitely?

Hello

I have the following situation:

If the Scale factor is not set as auto, when you click on the canvas resize button, the factor goes to 1, showing the whole image.

You can try this using the demo Image Editor:

1. Open the Image Editor demo
2. Load a large image (1024x768?) 
3. Change the zoom from auto to any other value
4. Click on Canvas Resize 
Observe that the factor now is 1 (100%).

Now if you repeat the same instructions, it won't happen again.

Any ideas?

My code is below that

<chartView:CartesianChartGrid MajorLinesVisibility="{Binding Ribbon.AxisGrid, Converter={StaticResource axisConverter}}">
                
  <telerik:CartesianChartGrid.Style>
        <Style TargetType="telerik:CartesianChartGrid">
               <Setter Property="MajorXLineDashArray" 
                      Value="{Binding Ribbon.AxisGridLine, Converter={StaticResource axisConverter}}"/>
               <Setter Property="MajorYLineDashArray" 
                      Value="{Binding Ribbon.AxisGridLine, Converter={StaticResource axisConverter}}"/>
         </Style>
  </telerik:CartesianChartGrid.Style>

................

     <telerik:CategoricalSeriesDescriptor.Style>
            <Style TargetType="chartView:LineSeries">
                    <Setter Property="VerticalAxis" Value="{Binding Data, Converter={StaticResource additionalVerticalAxisConverter}}"/>
            </Style>
     </telerik:CategoricalSeriesDescriptor.Style>


I do setting 'MajorYLineDashArray & MajorLinesVisibility'.

But my program does not appear 'MajorLine'

What should I do?

Additionally, attached file

 

good day,
bought lincença to utlização of some components of Telerik, first I'm going to use and add the RadGridView, but I have some difficulties and doubts.

1. FilteringMode = FilterRow
2. FilterOperator = StartsWith
. 3 Using wildcard expressions to filter every textbox to filter EXAMPLE: Like the SQL Server.

- Now I need to navigate between 'TextBox' filter using the Left and Right keyboard keys.
- Focus to 'Focus' in 'Grid' to "Down" keys, key but I have no idea how to do this.

graciously
André

I'm building a way to generate columns based on an IEnumerable inside a ViewModel bound to a single row. 
When creating a cell element, the DataContext of that element is set to something based on a property path.

Consider the following example:

• A GridViewRow would be bound to an Order object.
• For each line in this example a column will be created.

To achieve this, I created a custom column:

The DataMemberBindingPath contains something like Lines[0] or Lines[1]. This works fine since the WPF data binding engine can handle this. When I try to define the SortMemberPath containing an Indexer, nothing happens and the expression does not seem to be parsed.

Looking at the GridViewColumn source code, there is a method of interest:


However the method is Internal and I cannot override this to allow working with indexers.

Is there any workaround available to override the sort behavior for a custom column?

Dear customer support,
I am not sure if this is a bug or it is suppose to work by this way. Here is the code of whole RadRibbonView:
http://pastebin.com/eLKRbZba

And please see this video: https://www.youtube.com/watch?v=m_s0HSMgpK4&feature=youtu.be

First time when I run the project I open the code above in Window and as you see it works.
Then I change it to what I need. The structure is Windows with RadBusyIndicator + Frame where I navigate to Login Page. When user is login the frame navigate to the main program again it is Page. This is the exactly same code in pastebin. As you see when I click ApplicationButton the Backstage not open anymore.

This is a bug or it is suppose to not work in Page?

Best regards,
Saykor

Hello.


I have a sql server Table which contains some geometry data ( about 150 points), a column  with the color to applied on these points, and a label.

I need to display these points on my map with the right color and the corresponding label.

I'm new in WPF and telerik objects. If you can explain to me what object I should use (MapPinPoint, MapEllipse. i am lost with your different points objects. And i don't see how I can change the color of a particular point in code behind

I've come across a strange problem when trying to use RelativeSource binding in the DataTemplate used for styling the LabelTemplate of an axis. When RelativeSource binding is used, the labels are drawn over the left side of the chart instead of to the left.

Below is  the code for a simple example exhibiting the problem. (It's obviously a convoluted example since the numbers are all being set to the same value. In my real application I experienced the problem using MultiBinding to pass in some settings as well as the value, but this simpler example shows the same symptoms with single Binding).

If I bind to the Property using ElementName, it displays correctly. However, if I reference the exact same property using RelativeSource, the value is picked up successfully, but the labels are displayed incorrectly. See attached screen shot.

I have a work-around by using the ElementName, but ideally I'd like to use the RelativeSource instead to reference the owning ChartView such that the formatter can be put in a dictionary and used across several charts without having to assign them all the same name.

Thanks,
Louis

The sample app:


The code-behind:

Hi,

In My ViewModel I have: public ObservableCollection<OrderModel> Orders { get; set; }

In OrderModel have: public IEnumerable<utOrderItem> OrderItems { get; set; }

I try to bind this OrderItems to a GridViewComboBoxColumn in RadGridView just to list them:

<telerik:RadGridView Grid.Row="1" Name="grdOrders" ItemsSource="{Binding Orders}" .............

                <telerik:GridViewComboBoxColumn ItemsSource="{Binding Orders[].OrderItems}" Header="Order Items">
                    <telerik:GridViewComboBoxColumn.ItemTemplate>
                        <DataTemplate>
                            <Grid>
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="Auto"/>
                                    <ColumnDefinition Width="*"/>
                                    <ColumnDefinition Width="Auto"/>
                                </Grid.ColumnDefinitions>
                                <TextBlock Grid.Column="0" Text="{Binding Quantity}" />
                                <TextBlock Grid.Column="1" Text="{Binding ItemType}" />
                                <TextBlock Grid.Column="2" Text="{Binding UnitPrice}" />
                            </Grid>
                        </DataTemplate>
                    </telerik:GridViewComboBoxColumn.ItemTemplate>
                </telerik:GridViewComboBoxColumn>

                <telerik:GridViewDataColumn DataMemberBinding="{Binding OrderItems.Count}" Header="Order Item Count"/>

Column "Order Items" not show anything
Column "Order Item Count" works

Please advise how I can bind collection that exist in every record?

Best regards,
Saykor

I want to make some letters be bold in the RadGridViewCell. How can I do this ?