Hello ,

             I am new to telerik tool and upgrading the old asp.net application to WPF browser application which extensively uses the grid view control.

             I am trying to replicate following functionality from old application to new application and not sure what is the best approach and how to do it .

             1.Grid view is binded to database object and  based on the certain value present in particular field I need to show the edit button in each row, If that value    is not present then I need to hide the button.

             2. On click of this edit button, I need to show the update and cancel button in place of edit button as well as show the combo box with selections in different column (only this column need to be editable).

Thanks

Andy

Hi,

I'm trying to pass the window object of a window type RadWindow as command parameter to the code behind - however not RadWindow will be passed, but some helper windows classes of type WindowHostWindow.

The XML look like this:

<telerik:RadRibbonButton Text="Speichern"
                                             AllowDrop="True"
                                             LargeImage="..\Images\save.png"
                                             Size="Large"
                                             telerik:ScreenTip.Title="Speichern"
                                             telerik:ScreenTip.Description="Einen neuen Task anlegen."
                                             telerik:KeyTipService.AccessText="S"
                                             IsEnabled="{Binding CanSave}"
                                             Command="{Binding SaveCommand}"
                                             CommandParameter="{x:Reference Name=taskwindow}"
                                             IsDefault="True"/>

The Code behind(implementation of the command):

private void SaveProcess(object obj)
{

...

RadWindow wnd = (RadWindow)obj; <= this cast already fails as some helper class will be passed instaed of the expected RadWindow

Using the "normal" Window class instaed of the Telerik one, the code runs without any issues.

Looking forward to your answer.

Thanks,

Joachim

Hello,

I have a situation where I will have a collection of multiple RadDocuments that I would like to merge together into one document (and eventually create a PDF). I am able to accomplish this, but any lists that may be contained in those documents do not come out properly. Is there something I have to do other than using CreateDeepCopy to retain those liststyles? My code is doing something like this:

    Dim mergedDocument As Telerik.Windows.Documents.Model.RadDocument = New Telerik.Windows.Documents.Model.RadDocument()

                For Each section As Section In document.Sections             

                    Dim copySection As Section = TryCast(section.CreateDeepCopy(), Section)
                    copySection.PageMargin = section.PageMargin
                    copySection.PageSize = section.PageSize
                    copySection.CopyPropertiesFrom(section)

                    mergedDocument.Sections.Add(copySection)
                Next

            Return mergedDocument

Hi , 

I am facing an issue of SelectionChangeEvent when customizing the RadTabItem Header using Header Template in Style . Following Style for HeaderTemplate 
 <Setter Property="HeaderTemplate" >
                             <Setter.Value>
                                 <DataTemplate>
                                          <StackPanel Orientation="Horizontal" VerticalAlignment="Center" >
                                         <TextBlock Text="{Binding   TabHeader}" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="5,0,5,0"></TextBlock>
                                         <Button Content="x" BorderThickness="0"  Background="Transparent" HorizontalAlignment="Center" Margin="0,0,5,0" V ></Button>
                                     </StackPanel>
                                 </DataTemplate>
                             </Setter.Value>
                        </Setter>

Using Following Template Style

<Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate TargetType="{x:Type telerik:RadTabItem}">
                                <Grid>
                                    <Border Name="Border" Background="#FF6E6C67"
                                            
                                            BorderThickness="1,1,1,1" 
                                            CornerRadius="5"
                                            >
                                        <ContentPresenter
                                            x:Name="ContentSite" 
                                            ContentSource="Header"
                                            VerticalAlignment="Center"
                                            HorizontalAlignment="Center" 
                                            RecognizesAccessKey="True"/>
                                    </Border>
                                 
                                </Grid>
                                <ControlTemplate.Triggers>
                                    <Trigger Property="IsSelected" Value="True">
                                        <Setter TargetName="Border" Property="BorderThickness" Value="2,2,2,0"></Setter>
                                        <Setter TargetName="Border" Property="Margin" Value="0,-3,0,0"></Setter>
                                        <Setter TargetName="Border" Property="Background" Value="Red" />
                                    </Trigger>
                                    <Trigger Property="IsEnabled" Value="False">
                                        <Setter TargetName="Border" Property="Background" Value="Green" />
                                    </Trigger>
                                </ControlTemplate.Triggers>
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>

Please answer me if there is any issue in the above given Style 
Thanks 

I came across a strange issue with the RadGridView and the message queue.  When my application first starts it displays a model dialog box (for licensing).  After leaving this dialog box displayed for a couple of minutes I closed the dialog box.  I then got a trap with the "not enough quota" error and the application crashed.

Running Spy++ shows that there are thousands of events being generated even when the application is sitting idle. 

The events are: ...[Registered: "DispatcherProcessQueue"] wParam:00000000 lParam:00000000

I can reproduce this in my application by including 1 RadGridView.  if I remove all RadGridViews the issue disappears.

The demo WPF application version R2 2018 also demonstrates the issue when you open up the GridView demo. 

The really strange part is that I an only reproduce this on a brand new computer running windows version 1803 (OS Build 17134.112).  

My old PC running windows version 1703 (OS Build 15063.1029) does not exhibit this issue at all.  There are some of the events shown above but not a flood of them.  Both my application and the WPF demo application run just fine. 

Attached is an image of the demo and the output of Spy++ running on the new PC.

Thanks,
Phil Young

Hi Telerik,

I would like to know if WPF SpreadSheet can create advanced excel sheets as for instance EPPLUS library does.

I am using epplus for creating advanced Excel spreadsheets using .NET, without the need of interop right now and also using Telerik components in my project.

I thought if your spreadsheet is better or doing same thing so I would switch into your spreadsheet component.

I read a post that was saying they do not do the same thing and both are needed:

https://www.telerik.com/forums/how-to-upload-an-excel-file-and-how-to-read-its-content-row-by-row

Is it so?

If your component does so, please come with a sample/example for showing how.

It is urgent so I would appreciate getting the answer as soon as possible.

Thank you.

Best Regards

Kourosh

Hello,

because Telerik has no editable (enter text not contained in list) combobox (and this is really sad) I'm forced to add the standard ComboBox to a gridview column:

            <telerik:GridViewDataColumn UniqueName="AccountName" Header="Gegenkonto" Width="250">
                <telerik:GridViewColumn.CellEditTemplate>
                    <DataTemplate>
                        <ComboBox ItemsSource="{Binding DataContext.AccountList, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}}"
                                  DisplayMemberPath="AccountName" Text="{Binding AccountName}" IsEditable="True"/>
                    </DataTemplate>
                </telerik:GridViewColumn.CellEditTemplate>
            </telerik:GridViewDataColumn>

The problem is now, that it doesn't move to the next cell when I press the Tab key while editing that column. It works perfectly an the other (telerik) columns.

Best Regards,

Raul

Hi,

I am using a RadGridView with property ShowColumnSortIndexes set as "True".

The index numbers were displaying properly when I did multi column sorting.

But now the sort index numbers are not displayed since we used a template for GridViewHeaderCell to customize the look of header cells.

Could someone please help me to get the sort index numbers back in GridViewHeaderCell template?

Thanks,

Vijay

I have problem with wpf designer from today. In the design view I can only see rad watermark text box and all window controls all others are not visible.

In the output of General and I have these exceptions:

Exception has been thrown by the target of an invocation.
There was an exception when loading the design time assembly '***path***\Design\Telerik.Windows.Controls.Navigation.Design.5.0.dll':

Exception has been thrown by the target of an invocation.
There was an exception when loading the design time assembly '***path***\Design\Telerik.Windows.Controls.Input.VisualStudio.Design.4.0.dll':
Exception has been thrown by the target of an invocation.
There was an exception when loading the design time assembly '***path***\Design\Telerik.Windows.Controls.Input.Design.5.0.dll':
Exception has been thrown by the target of an invocation.
There was an exception when loading the design time assembly '***path***\Design\Telerik.Windows.Controls.Data.VisualStudio.Design.4.0.dll':
Could not load file or assembly 'Telerik.Windows.Controls.Data, Version=2018.1.122.45, Culture=neutral, PublicKeyToken=KEY' or one of its dependencies. The system cannot find the file specified.
There was an exception when loading the design time assembly '***path***\Designer\ShadowCache\i1edbdwb.fee\tj5mcnrj.5ft\Design\Telerik.Windows.Controls.Data.Design.5.0.dll':
Exception has been thrown by the target of an invocation.