Telerik provide a SelectedItemsBehavior example for two-way binding of SelectedItems. It is on GitHub here:
https://github.com/telerik/xaml-sdk/tree/master/GridView/BindingSelectedItemsFromViewModel

Original blog post from 2010 here: http://blogs.telerik.com/vladimirenchev/posts/10-05-31/how-to-synchronize-your-ui-selected-items-with-your-data-context-using-mvvm-and-blend-behaviors-for-silverlight-and-wpf.aspx

In my experience, and as others have reported, it is a little buggy:
1. It will crash in the Transfer() method intermittently. 
For example, this was reported by another user: I used the solution suggested in the last comment by Vlad from github, it worked fine, but sometimes I am getting the error "cannot change observablecollection during a collectionchanged event". I also get this error.

2. If you change the DataContext, then the SelectedItems collection no longer gets updated.

I have developed some very simple fixes and now it works beautifully. First of all, we only subscribe to events once. Second, we only attach ourselves to the grid once.

Here is a pull request - maybe the mods will merge it in:
https://github.com/HolbergEEG/xaml-sdk/commit/30ae7a8ebe0513674921f72b3dff1d4332dd63a9

I have a RadExpander on a UserControl. The datacontext of the UserControl (and therefor of the RadExpander) is bound to the selecteditem of a RadDataGrid (a list/details solution).The datacontext is a viewmodel and all my viewmodels implements INotifyPropertyChanged.

The first time I select an item in my datagrid, it goes well. After that, the pink textblock shows the previous Name (string) while the green shows the current.

That seems like a bug to me.

I cant just use the green one, because in my real solution I need to do complex stuff with datatriggers, but this is what it boils down to.

Here is the XAML, and I have attached a picture from my running program:

for our RadDiagramShapes, we have a Style that includes the Setter:

When we have a these shapes in a diagram with DiagramSurface.IsVirtualizing set to false, the binding appears as expected.  However, when we enable virtualization, we see via Snoop that the binding on that property has instead been set locally to a path of "(0)".

We use Visibility to control, oddly enough, the visibility of elements in our diagram.  Can you all offer any insights into what's going on and also what we could do to work around this while still having virtualization enabled, please?

This is with UI for WPF v. 2015.2.0401.

 

Thanks,

 

-David

 

For some reason, I'm unable to apply a LabelText attribute on the RadDataBar. Its ControlTemplate contains a TextBlock which uses TemplateBinding to bind to the AppliedLabelMargin and LabelText properties, but they're not available.

What gives?

How do you center the checkbox in the GridViewCheckBoxColumn? My stays Left aligned. I tried setting the TextAlignment to center, but it does nothing.

I used this method to fix the empty combo box

 

http://docs.telerik.com/devtools/wpf/controls/radgridview/troubleshooting/blank-cells.html

 

I have a Usercontrol called relationship that uses that fix. 

At the moment I have to create 4 different UserControls because each is pointing to a different viewmodel. Is there a way to have it dynamic so it can point to any.

Hello,

 I have built a radgridview and binded to selectedItems. This works great and as I imagined until I filter the grid (using the default telerik filtering) on a column and then selecting a new item which selectedItems is null. Can someone please help me understand what is difference for selecteditems with the entire collection and a filtered collection? And why the binding is null after being filtered? Thank you. 

 Below is my binding.

<telerik:RadGridView x:Name="radGridView" GroupRenderMode="Flat"
Width="Auto"
Height="Auto"
MaxHeight="500"
CanUserFreezeColumns="True"
RowIndicatorVisibility="Collapsed"
AutoGenerateColumns="False"
Grid.Row="0"
ShowGroupPanel="False"
ItemsSource="{Binding GridModels}"
SelectedItem="{Binding SelectedItem, Mode=TwoWay}"
RowEditEnded="RadGridView_RowEditEnded">

 

Once again, this works great until I filter and then try selecting a new row (I am not selecting and then filtering).

Hi,

I am facing issues in copying the PNG files in to rich text box. 

I have an 2 PNG files, one of theirs Layout format is "Square", the other ones Layout format is "Inline with text". 

File with the Layout format of "Square" is copied properly, where as the "Inline with Text" doesn't get copied over as image. Instead, its pasted as a very long text of binaries or strings.

ClipboardEx.GetDocument(); gets Image as span with long text rather than the ImageInline.

Could some one help in fixing this issue please ? Do we have paste special option in Telerik ?

Thanks

Good morning,
My company is looking at using the RadRichTextBox control for rendered, editing, and exporting Docx documents. I am attempting to write a small test app as a proof-of-concept but I've hit a problem I can't get around. In all of the demos/tutorials I am seeing online they are creating a DoxFormatProvider and using it to create a document like the following:

using( Stream readStream = dialog.OpenFile() )
{
   IDocumentFormatProvider provider = new DocxFormatProvider();
   RadDocument = provider.Import( readStream );
}

Unfortunately what I am seeing is that DocxFormatProvider will not cast to an IDocumentFormatProvider. DocxFormatProvider appears to be a BinaryFormatProviderBase<RadFlowDocument> found in the Telerik.Windows.Documents.Flow assembly. The DocxFormatProvider returns a RadFlowDocument rather than a RadDocument which I have been unable to find a way to get a RadFlowDocument to work in the RadRichTexTextBox control.

It appears like all other providers have their own DLL following the pattern Telerik.Windows.Documents.FormatProviders.XXX.dll where XXX is the provider type but I do not see a Docx DLL. The assemblies I am working with are 2014.2.729.45. Any guidance would be greatly appreciated. Thanks!
Jason

hi, im using current Telerik WPF Q1 2015 and also try using current and i have a problem in my project with DocumentTextSearch. the function is to load  document xaml template and find text string and replace with table. but i have problem with DocumentTextSearch when searching text string from RadDocument its keep hanging when try to find text string. my code is like bellow : 

  public void ReplaceTable(ref RadDocument doc, string searchitem, Table RefTable)
        {
            doc.BeginUpdate();
            try
            {
                using (DocumentPosition startFindPosition = new DocumentPosition(doc.DocumentLayoutBox, true))
                {
                    var found = true;

                    while (found)
                    {
                        DocumentTextSearch textSearch = new DocumentTextSearch(doc);
                        TextRange find = textSearch.Find( Regex.Escape(searchitem), startFindPosition);

                        found = find != null;

                        if (found)
                        {
                            startFindPosition.MoveToPosition(find.EndPosition);
                            startFindPosition.AnchorToNextFormattingSymbol();

                            doc.CaretPosition.MoveToPosition(find.StartPosition);
                            find.SetSelection(doc);

                            //doc.Delete(false);
                            //doc.IncreaseLeftIndent();
                            //if (RefTable.Rows.Count == 1)
                            //{
                            //    doc.Insert("-");

                            //}
                            //else
                            //{
                            //    doc.InsertTable(RefTable);
                            //}
                            doc.Selection.Clear();


                            startFindPosition.RemoveAnchorFromNextFormattingSymbol();
                        }
                    }
                   
                }
            }
            catch (Exception e) { }
            finally
            {
                doc.EndUpdate();
                
            }
        }

i wait your reply