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?

Hi,

After updating the Telerik dll v2014.1.331.40, The RadFluidContentControl inside RadTileView is not working.

<telerik:RadFluidContentControl Margin="2"  ContentChangeMode="Manual"  State="Normal">
   // Content here is not rendering
<telerik:RadFluidContentControl.Content>

</telerik:RadFluidContentControl.Content>
</telerik:RadFluidContentControl

After commenting the telerik:RadFluidContentControl the content is visible. Any changes in Telerik dll v2014.1.331.40 ?

Regards
Siva

Hello, everyone.

I am working on an MVVM / Prism application and I have run into a bit of  a snag on how to populate my PanelBar with items.  For reference: I am trying to create a layout similar to the one found here. On the referenced page assume that Products and Support are each their own separate modules, and that each item under them represents a view within that module. Now assume that there is security built around both Modules and Views so that only certain people can see them.  

I am already dynamically loading my modules via reflection, but I am at a loss on how to do dynamically load my views.  To register my views, I would typically do something like this:

RegionManager.Regions["NavRegion"].Add(Container.Resolve<DefaultView>(), "TheDefaultView");

Where "NavRegion" is a custom region that I have a RegionAdapter for.  The problem is that I don't see a way to setup my RegionAdapter to get my PanelBar to display in the manner I would like since I can't really build a Hierarchical structure in my RegionAdapter. Is there anyway that I could bind to an XML document that defines the structure of the items?  If there is a way to do that, is it possible to append to a bound xml datasource? What I mean is: Module1 has an XML document that defines what views to show, Module2 has an XML document that defines what views to show, and so on.

Thanks for any help you might be able to provide!