I'm using the commands in the RadWizardCommands class as described Commands page of the documentation for the RadWizard. I'll start by noting that everything works in the application ​at runtime; however, at design-time Visual Studio 2015 reports the use of the commands as errors. I'd love to eliminate this noise, because it's easy for it to obfuscate real problems.

<telerik:RadButton Content="&lt; Back" Command="wizard:RadWizardCommands.MoveCurrentToPrevious" .. />

The errors that are reported are: Invalid value for property 'Command': 'Microsoft.VisualStudio.DesignTools.XamlLanguageService.Semantics.XmlValue'

Clicking on the Decrease/Increase Handles of a RadSlider normally changes the Slider by the amount of SmallChange.

But what if I have IsSnapToTickEnabled=True and ticks are not equidistant? In this case the buttons don't work properly. For example:

 

 

leads to the problem that Increase ​Handle works well when navigating from tick 2 to 4, but then nothing more happens and no further click will bring the thump to tick 8 and 13. This is an incorrect behaviour, or am I wrong?

 

Peter, Germany

 

Hi,
I have a question about how to implement scenario presented on the picture table.png? There are 2 separate problems. First and more important is how to implement cell spanning in RadGridView? I had some luck with Custom row layout combined with Style selector and DataTriggers. Then for some rows I managed to change layout do display only cell with TextBlock like in the Row 3 on the picture. Is this the right approach? Well, it works then I lose all the standard styling and behavior (like highlight and so on). Is there any possibility to maintain standard row look and span cells?

The second problems is with headers. As you can see the table has some multilevel headers. I was able to create some sort of substitution of the presented header with Column Groups, but it's not the same, eg. Header 6 should span 2. The main struggle is that content cells are connected directly to Headers in second row, 3rd row of headers is only for labeling and is not connected to the table content? 

Hi,I am developing with RadSpreadsheet control.I register my custom function to the RadSpreadsheet .When the function evaluates ,I found that each time the EvaluateOverride method execute 3 times.Is there anything wrong here,or it's supposed to do this.I just worry about running efficiency.

Hi,

Our code is using WPF with MVVM pattern. We are using the RadGridView to display the users data in rows with check box option to select/deselect all rows.

In my code I have a class which derives from 

and inside I have 

where target is ​Behavior<RadGridView>

My WPF code related to grid is: 

<telerik:RadGridView x:Name="Users" HorizontalAlignment="Stretch" AutoGenerateColumns="False" ShowColumnFooters="True"  SelectionMode="Extended"><telerik:RadGridView x:Name="Users"Stretch" AutoGenerateColumns="False" ShowColumnFooters="True" SelectionMode="Extended">​

Issue:

When I select all using the top most checkbox in the grid - the event 

fires for every item getting selected. So, if grid have 5 users in the grid - the event fires 5 times for selection/deselection of contacts.

 I think collection changed method should fire only one time.

 

Any clarification on this would be appreciated.

Thanks,

Nirav Patel

Hi,

 I'm using RadTileView and RadFluidContentControl to display small, normal and large views. For some reason the default normal view is displaying correctly but other 2 views are not displayed. Please see below code:

 

<telerik:RadTileViewItem Header="​Test">

                        <telerik:RadFluidContentControl ContentChangeMode="Manual" 
                                                        State="{Binding RelativeSource={RelativeSource AncestorType=telerik:RadTileViewItem}, Path=TileState, Converter={StaticResource FluidContentStateConverter}}">

                                   <telerik:RadFluidContentControl.SmallContent>
                              
                                    <TextBlock Text="{Binding Path=textvalue}" />
                            </telerik:RadFluidContentControl.SmallContent>

                           
                            <telerik:RadFluidContentControl.Content>

                                <TextBlock Text="{Binding Path=textvalue1}"  />
                            </telerik:RadFluidContentControl.Content>

                             <telerik:RadFluidContentControl.LargeContent>
                               
                                <TextBlock Text="{Binding Path=textvalue2}" />

                            </telerik:RadFluidContentControl.LargeContent>

                        </telerik:RadFluidContentControl>

                    </telerik:RadTileViewItem>

 textvalue, textvalue1 and textvalue2 values are assigned in the viewmodel and it is used in the namespace:

 <UserControl

 d:DataContext="{d:DesignInstance viewModels:TestViewModel}"​

... />

 

Could you help me why small and large contents are not displaying?

 

Thanks

​

Hello. I'm trying to figure out the proper way to provide editing for a collection of name/type/value things. I was hoping to use DynamicObject, and expose dynamic properties for the properties to be edited. DynamicObject however, as far as I can tell, has no real way to expose more than a member name to consumers (such as RadPropertyGrid.) So, I don't know how to expose the TYPE of the propert to RadPropertyGrid.

What's the best way to go about this? Is DynamicObject suitable?

I have a situation where I'm setting the RadPropertyGrid's Item to an ExpandoObject instance whose properties have been defined at run-time. I'm listening for the PropertyChanged event of the ExpandoObject to tell when a property has been updated.

I'm using the AutoGeneratingPropertyDefinition event to catch properties with specific names and assign an EditorDataTemplate that uses a RadNumericUpDown control. The problem is that the property value (let's just use the name "Prop1") is set by a nullable double, so sometimes Prop1 has a value, and sometimes its null. If Prop1 has a numeric value everything works great with the property editor, and I can change the field for Prop1 and it will change its corresponding value in the ExpandoObject perfectly.

However if Prop1 is set to null, its field shows up in the PropertyGrid but when I change the value I don't get any PropertyChanged event from the ExpandoObject. The event fires if I set a value to Prop1 in code-behind, but not if I try to change it from the PropertyGrid. This leads me to believe there is some sort of binding issue with the property grid and ExpandoObject properties with null values.

Any suggestions?

Hi,

I use RadGridView in my project...

when i change the value at some row (only happen at textbox, when i change value at checkbox/combobox it doesn't happen) and then try to sort the column ascending or descending it crashes.

It only happens when i set AutoGenerateColumns to false (which is always the case in our application..)

To enable sorting, I set DataMemberBinding of each column.

The error I get is:

"The runtime has encountered a fatal error. The address of the error was at 0x5b7d157d, on thread 0x430. The error code is 0x80131623. This error may be a bug in the CLR or in the unsafe or non-verifiable portions of user code."

The code I use:

<telerik:RadGridView AutoGenerateColumns="False" ItemsSource="{Binding MyArray}">
        <telerik:RadGridView.Columns>
           <telerik:GridViewDataColumn DataMemberBinding="{Binding Name}">
                <telerik:GridViewDataColumn.CellTemplate>
                    <DataTemplate>
                        <AdornerDecorator>
                            <TextBox Text="{Binding Name}" />
                        </AdornerDecorator>
                    </DataTemplate>
                </telerik:GridViewDataColumn.CellTemplate>
            </telerik:GridViewDataColumn>
         </telerik:RadGridView.Columns>
</telerik:RadGridView>
   

 

 

 

Hello,

i am trying to use DataPager to display the count of rows in GridView, which are filtered or grouped in the GridView.

Then i have the Binding of Items with GridView.

My problem is that, if i use Groupe function of GridView, i will see the number of groups insteads of the number of shown rows of GridView in DataPager.

Has somebody solved this problem? Thanks a lot!

Ivan