Hello. I found a good example for Zoom And PanOffset Binding in you samples for WPF (called Zooming and Scrolling)

It workes fine if the 2 RadCartesianChart located on the same control and binding the same properties. In my project  I have to create a 2 tabs and put custom user control insite the each tab.

When I select the firs tab i have to change zoom and offset base on the chartView on the second tab.The same for the first tab, it should change properties base on the chart from tab 1. But it doesn't do it correct. It only works if i select the first tab and then select the second tab and change zoom, it will change it everywhere. 

How can i update zoom on the second chart without opening the tab?

I put some small example on the git and i guess it will clarified the situation. https://github.com/Magnona/ChartViewZoomPanOffset

Hi Team Telerik,

I have some issue regarding raddiagram with wpf.

1. I have 2 picture attached as : "grouprotate45.jpg" and "groupnotrotate.jpg"
 - It's rotate normal when i rotate 1 element in raddiram. 
 - But my issue when i group many elements and then i rotate them. The group not rotate but it's only rotate per element in and it's not correct..

2. I have picture as "idplacementcorrect.png" 
 - How to draw an id of button and it's always place in bottom right of button when i rotate it it's rotate too as same in picture. i can draw button as same my picture with code but i don't know how to place it as correct position when element rotate.


Thank you so much !

Hi All,

  i have a requirement to implement d&d functionality for radgridview(only drag) to textBox (only drop) control.so i tried the drag and drop demo application comes with the telerik suite. gridview to listbox is working fine and the problem is don't know how to implement for textbox control and textbox value should be either one of the dragging column of gridview in MVVM pattern.

   

Hi there,

we're using the RadGridView in our MVVM application, so no code-behind or explicit C# code talking to the controls -

How can we specify that grouped rows are expanded by default in the XAML?
Grouping is achieved via ColumnGroupDescriptor in our case.

Thanks,
Jay

Hi,

I am using 2014.1.428.45 Telerik dll version. In this dll, while i was pasting the text continuously in the Radrichtextbox its simply keep on increasing the memory of the application.

And also I have used memory profiler to detect where the memory leaks.

please find attached files are classes that used for memory leaks.

Can any one please help me regarding this issue ?

Thanks and regards,
Sivalingam.

Hi,

I am just trying to improve scroll performance, when the RowDetailsVisibilityMode is set to "Visible", because it is slow for complex detail controls.
Now I am doing this:

<DataTemplate x:Key="DetailTemplate">
    <ContentControl/>
</DataTemplate>

In code behind:

List<TextBlock> notInUse = new List<TextBlock>();

public DataListEditor()
{
    InitializeComponent();

    for (int i = 0; i < 100; ++i)
    {
        TextBlock tb = new TextBlock();
        notInUse.Add(tb);
    }

    dataListGrid.LoadingRowDetails += dataListGrid_LoadingRowDetails;
    dataListGrid.UnloadingRowDetails += dataListGrid_UnloadingRowDetails;
}

void dataListGrid_UnloadingRowDetails(object sender, Telerik.Windows.Controls.GridView.GridViewRowDetailsEventArgs e)
{
    ContentControl c = e.DetailsElement as ContentControl;

    TextBlock tb = c.Content as TextBlock;

    if (tb != null)
    {
        c.Content = null;
        notInUse.Add(tb);
    }
}

void dataListGrid_LoadingRowDetails(object sender, Telerik.Windows.Controls.GridView.GridViewRowDetailsEventArgs e)
{
    ContentControl c = e.DetailsElement as ContentControl;

    if (c.Content == null)
    {
        Binding b = new Binding("Roles[0].DisplayName");
        b.Source = e.Row.DataContext;

        TextBlock tb = notInUse[0];
        notInUse.RemoveAt(0);

        tb.SetBinding(TextBlock.TextProperty, b);
        c.Content = tb;
    }
}

In other words: I try to recycle detail controls, so that there is no need to recreate them. This works fine, when I am only scrolling. But if I resize the window, the DetailsPresenter of a row seems not to be measured to its content, so the text block is there with the right height, but its visual ancestors have a wrong height and the textblock is not visible. Is there a workaround to solve this?

Thanks

Hi,
I follow your demo: http://www.telerik.com/help/wpf/gridview-populating-datavirtualization.html and seems I missing something.

Use code first.

xaml:
-------------------------------
<telerik:RadGridView Grid.Row="1" Name="_grid" ItemsSource="{Binding Contacts}" AutoGenerateColumns="True" 
                             ShowColumnFooters="True"
                             ColumnWidth="*" AlternationCount="2" AlternateRowBackground="#FFEAEFF7" Background="#FFD2DEEF" EditTriggers="None"
                             telerik:StyleManager.Theme="Summer" HorizontalGridLinesBrush="White" VerticalGridLinesBrush="White">

 <telerik:RadDataPager Grid.Row="2" Source="{Binding ElementName=_grid, Path=Items}"
                              DisplayMode="FirstLastPreviousNextNumeric,Text" PageSize="18" />
-------------------------------

ViewModel:
-------------------------------
public VirtualQueryableCollectionView Contacts { get; set; }

public ContactViewModel()
        {
            var db = new PaperCRMContext();
            var query = db.Contacts.OrderBy(x => x.Id);
            Contacts = new VirtualQueryableCollectionView(query) { LoadSize = 10 };
        }
-------------------------------
When I run the project I receive error: 
{"There is already an open DataReader associated with this Command which must be closed first."}

When I remove .OrderBy(x => x.Id) i receive other error: 
{"The method 'Skip' is only supported for sorted input in LINQ to Entities. The method 'OrderBy' must be called before the method 'Skip'."}

At last when I remove { LoadSize = 10 }
I receive empty grid

Can someone help me what I miss here?

Best regards,
Saykor

We are replacing our applications existing HTML editor with the Telerik RadRichTextBox.

One of our users noticed that her font was no longer available in the FontFamily combo.

I discovered that the font she could not find is a *.otf (OpenType) font.

Does the RadRichTextBox support *.otf (OpenType) fonts?

Hi,,

How to set the selected points in RadCartesianChart with ScatterPointSeries from the View Model?


Thanks,,

Hi!

I tried to set different themes for my application and I found out that all themes look like in the Sample WPF applications, except for the "Windows8" theme. RadWindow header in samples is different from that in my application. Can anyone tell me why?