Hi, I need to create RadDataGrid in xamarin forms programmatically. it only creates the header and it's fine. But when I insert new data in ItemSource there has no new row added in UI while ItemSource already updated with new row data. I have tried in several ways and still, there has no progress. Have any other options to add a data row in RadDataGrid? code snippets are attached.

  private readonly RadDataGrid dataGrid = new RadDataGrid() { IsEnabled = true, AutoGenerateColumns = false };
  private List<GridModel> dataSource = new List<GridModel>(); 

  public async Task DoSetup()
        {
             Grid outermost = this.GetOutermostGrid();
             this.Content = outermost;
             AddHeaderRow(columsList);
             dataGrid.ItemsSource = dataSource;
             outermost.Children.Add(dataGrid);
             Grid.SetColumn(dataGrid, 0);
        }

private void AddHeaderRow(IEnumerable<string> headers)
        {
            foreach (string s in headers)
            {
                this.dataGrid.Columns.Add(new DataGridTextColumn() { HeaderText = s, SizeMode = DataGridColumnSizeMode.Stretch, Name = s, PropertyName = s });
            }
        }

private void AddNewRow(GridModel model)
        {
            //dataSource.Add(model);
            //dataGrid.ItemsSource = dataSource;
            (dataGrid.ItemsSource as List<GridModel>).Add(model);
        }

Im trying to install Telerik UI for Xamarin tools for Visual Studio for Mac by following the instructions here. Section "Download the controls", step 5.

When opening the "ProjectTemplateXamarin.mpack" file. I get the following error message:

The selected extension packages can't be installed because there are dependency conflicts. The package '::Xamarin.FormsPreviewer v4.15' could not be found in any repository.

The following packages will be installed: Telerik Xamarin Add-in v2021.1.413 (in user directory)

The follwing dependencies could not be resolved: ::Xamarin.FormsPreviewer v4.15

------------------------------------------------------------------------------------------------------------

What can I do to resolve this issue? Is there another way to install the extensions?

I assume this error has something to do with the warning bulletin in this article.

Thank you

Hi!

After upgrade to Telerik UI for Xamarin R1 2021.

Content pages that use RadListView will throw System.TypeLoadException error:

My app will crash after that exception thrown. How to fix this problem?

Thanks!

Hello good afternoon, I have a problem since I updated to the most current versions of Xamarin.Forms and Telerik.

I had a ScrollView that was the parent of a RadTabView, and when switching between Tab items it updated as heights normally.

But after the update it records only the first height of the content of the first item and when I switch to the other items the scroll does not work because the height of the Tab does not change and he is unable to make a difference to calculate how much will roll.

EX:

 <ScrollView x:Name="s"
              BackgroundColor="Azure">
        <telerikPrimitives:RadTabView x:Name="tabView"
                                          BackgroundColor="Blue"
                                          IsContentSwipingEnabled="False">
            <telerikPrimitives:RadTabView.Items>
                <telerikPrimitives:TabViewItem HeaderText="Home">
                    <telerikPrimitives:TabViewItem.Content>
                        <StackLayout x:Name="sta"
                                         BackgroundColor="Aquamarine">

                            <StackLayout.GestureRecognizers>
                                <TapGestureRecognizer Tapped="st1" />
                            </StackLayout.GestureRecognizers>

                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                        </StackLayout>
                    </telerikPrimitives:TabViewItem.Content>
                </telerikPrimitives:TabViewItem>
                <telerikPrimitives:TabViewItem HeaderText="Folder">
                    <telerikPrimitives:TabViewItem.Content>
                        <StackLayout x:Name="stb"
                                         BackgroundColor="Firebrick">

                            <StackLayout.GestureRecognizers>
                                <TapGestureRecognizer Tapped="st2" />
                            </StackLayout.GestureRecognizers>

                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                        </StackLayout>
                    </telerikPrimitives:TabViewItem.Content>
                </telerikPrimitives:TabViewItem>
                <telerikPrimitives:TabViewItem HeaderText="View">
                    <telerikPrimitives:TabViewItem.Content>
                        <StackLayout x:Name="stc"
                                         BackgroundColor="DodgerBlue">

                            <StackLayout.GestureRecognizers>
                                <TapGestureRecognizer Tapped="st3" />
                            </StackLayout.GestureRecognizers>

                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                            <Label Margin="10" Text="This is the content of the Home tabdfoihdsoifhsoidhfoisdhfoishfois"
                               HeightRequest="50"
                               BackgroundColor="Red"/>
                        </StackLayout>
                    </telerikPrimitives:TabViewItem.Content>
                </telerikPrimitives:TabViewItem>
            </telerikPrimitives:RadTabView.Items>
        </telerikPrimitives:RadTabView>
    </ScrollView>

Ao mudar para o terceiro item da Tab ele não entende que deve fazer scroll.

Porf se alguém puder ajudar, agradeço.

     Hi, 

I am looking to be able to make my data grid to be able to rotate to be in a portrait position. Anyway this is possible, or any suggestions on other Telerik controls to use for this?

Thanks