Hello,

I'm trying to exclude some (but not all) RadGridView columns' information from being persisted using PersistenceManager.

For example, in the below grid, how would I exclude column Info's properties from being persisted based on the column's Header name (assume I've defined CustomPropertyProvider for the grid to persist properties like Width, Header, etc.)?

<telerik:RadGridView x:Name="TestGrid"
                     telerik:PersistenceManager.StorageId="TestGrid"
                     AutoGenerateColumns="False">
   <telerik:RadGridView.Columns>
      <telerik:GridViewDataColumn Header="Info" DataMemberBinding="{Binding Info}"/>
      <telerik:GridViewDataColumn Header="Data" DataMemberBinding="{Binding Data}"/>
   </telerik:RadGridView.Columns>
</telerik:RadGridView>

I could use SerializationOptions but I'm not sure what I'd put in the "Expression" field to exclude column "Info" (see below):
<telerik:PersistenceManager.SerializationOptions>
   <telerik:SerializationMetadataCollection>
      <telerik:PropertyNameMetadata Condition="Except" Expression="??" SearchType="PropertyName" />
   </telerik:SerializationMetadataCollection>
</telerik:PersistenceManager.SerializationOptions>

I have a radcombobox with AllowMultipleSelection set to true.

When loading a window I want to set the selected items in that combo box from values obtained from a database. But I can't seem to see how the values can be set if I set the ItemsSource to a string[]

As an example

      string[] items = new string[] {"1", "2" "3", "4"};
      OptionCombo.ItemsSource = items;

Then I want to set "2" and "4" to selected.

Thanks

From the picture below you can see that the percent sign is cropped. but it isn't on the rest

ClipToPlotArea="False"

Also how to achieve the chart in the second image. (The age pyramide with the age in the middle)

Thanks

Hi,
The rotation property of the page object causes me problems.
I want to rotate a specific page in the RadFixedDocument, so i index the right page and rotate it 90 degree and after that i call OnPropertyChanged to update the PdfDocument property.
But when the page was rotated(in the debug mode the value has been changed) the radpdfviewer doesn't display the rotation.

Where could the error be located?
Many thanks in advance for youre suggestions.

MainWindow.xaml.cs:

MainWindow.xaml:

PdfViewModel.cs:

I am trying to use the RadSlider to allow the user to choose the number of Millimeters on an interface, I don't need fractions at all, but I can't figure out how to get the RadSlider to snap to whole numbers when they drag the slider.  If anyone has an example of how to do this it would be much appreciated.

thanks!

Hi

I have a function that changes two properties. Using MVVM.

1.     FilterDescriptors => that updates the GridView.FilterDescriptors by a DepedencyProperty
2.     ScrollItem => that uses GridView.ScrollIntoViewAsync by a DepedencyProperty

Both working fine if i set a property one at a time. If i run them in same function the order is still right of calling the DependencyProperties.
Although the ScrollIntoViewAsync gives a ScrollFailedCallback in this scenario and it is not scrolled to the item.

My guess is that the items are still filtered, hence it cannot be scrolled to the desired item.

Any ideas to solve this?
Thank you in advance

Hi,

I have some dropdown cells in the grid and the filter for those columns is showing the dropdown values, how do I make the editor checkbox labels display the dropdown displaymember instead? Is there a sample project somewhere demonstrating this?

Thanks,
Maurice

Hi,

I've been reading as much as I can on how to theme controls.

In particular, I wanted to react to this article:
https://www.telerik.com/blogs/xaml-theming-implicit-styles-versus-stylemanager

One of the cons that isn't mentioned for implicit styles, is that when you want to create a new style, you have to use BasedOn, otherwise nothing will be rendered.
That is not what happens for regular WPF controls, because they still have their default (or theme) style applied. A custom style then only extend the default style, and if you want to disregard it altogether, you can set OverridesDefaultStyle to True.

I have 2 questions:

1. "Implicit styles for Telerik controls can’t be used if the application theme is set to other than the default Office_Black theme." => That is not something that I have observed. Using the 2019.2.510 Xaml packages, whichever theme I set is still honored when I create custom implicit styles. For example if I write this:
<Style TargetType="telerik:RadButton">
    <Setter Property="FontWeight" Value="Bold" />
</Style>
Then the buttons will have a Bold text and still apply the rest of my current theme set by StyleManager, whether it's Office_Black, Office2016, Green or anything else.
Could you explain what you meant, or if it is outdated and implicit styles are now supported with StyleManager?

2. Why was support for the built-in WPF mechanism for theming not adopted? If in the AssemblyInfo.cs if your NoXaml assemblies you set ExternalAssembly for the first parameter of ThemeInfo, then it would be possible for your customers to create a Generic assembly (e.g. Telerik.Windows.Controls.Generic) that contains the Themes/Generic.xaml that merges whichever theme they choose, and even further customize the theme. And/or for customers who don't want to customize the themes, you could directly provide those Generic theme assemblies in packages for each theme. Therefore, you'd have the best of both worlds as to apply the theme, customers would only need to reference the appropriate Generic assembly, and they'd have implicit styling support without having to specify BasedOn on all their custom styles.

Thanks in advance for any clarification