Please help me debugging the working codes in TabControlExt

[Kook Jin Noh]

Hi,

Could you please help me debugging the following?

<Window x:Class="SyncfusionWpfDropdownTest.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:SyncfusionWpfDropdownTest"
        xmlns:syncfusion="http://schemas.syncfusion.com/wpf"
        mc:Ignorable="d"
        Title="Trading App" Height="450" Width="800">
    <Window.DataContext>
        <local:ViewModel x:Name="viewModel"/>
    </Window.DataContext>
    <Grid>
        <syncfusion:TabControlExt Name="tabControlExt">
            <syncfusion:TabItemExt Header="Data">
                <Label HorizontalAlignment="Left" Margin="0,0,0,0" FontWeight="Bold">Market:</Label>
                <StackPanel HorizontalAlignment="Left" Margin="100,0,0,0">
                    <syncfusion:DropDownButtonAdv IconHeight="1" IconWidth="1" SizeMode="Normal" x:Name="MarketDropDown" Label="Market">
                        <syncfusion:DropDownMenuGroup ScrollBarVisibility="Visible" ItemsSource="{Binding Markets}">
                            <syncfusion:DropDownMenuGroup.ItemTemplate>
                                <DataTemplate>
                                    <syncfusion:DropDownMenuItem Header="{Binding Name}" HorizontalAlignment="Left" Click="DropDownMenuItem_MarketClick">
                                    </syncfusion:DropDownMenuItem>
                                </DataTemplate>
                            </syncfusion:DropDownMenuGroup.ItemTemplate>
                        </syncfusion:DropDownMenuGroup>
                    </syncfusion:DropDownButtonAdv>
                </StackPanel>
                <Label HorizontalAlignment="Left" Margin="0,30,0,0" FontWeight="Bold">Delivery Month:</Label>
                <StackPanel HorizontalAlignment="Left" Margin="100,30,0,0">
                    <syncfusion:DropDownButtonAdv IconHeight="1" IconWidth="1" SizeMode="Normal" x:Name="DeliveryMonthDropDown" Label="Delivery Month">
                        <syncfusion:DropDownMenuGroup ScrollBarVisibility="Visible" ItemsSource="{Binding DeliveryMonths}">
                            <syncfusion:DropDownMenuGroup.ItemTemplate>
                                <DataTemplate>
                                    <syncfusion:DropDownMenuItem Header="{Binding Month}" HorizontalAlignment="Left" Click="DropDownMenuItem_DeliveryMonthClick">
                                    </syncfusion:DropDownMenuItem>
                                </DataTemplate>
                            </syncfusion:DropDownMenuGroup.ItemTemplate>
                        </syncfusion:DropDownMenuGroup>
                    </syncfusion:DropDownButtonAdv>
                </StackPanel>
                <Label HorizontalAlignment="Left" Margin="0,60,0,0" FontWeight="Bold">Country:</Label>
                <StackPanel HorizontalAlignment="Left" Margin="100,60,0,0">
                    <syncfusion:DropDownButtonAdv IconHeight="1" IconWidth="1" SizeMode="Normal" x:Name="CountryDropDown" Label="Country">
                        <syncfusion:DropDownMenuGroup ScrollBarVisibility="Visible" ItemsSource="{Binding Countries}">
                            <syncfusion:DropDownMenuGroup.ItemTemplate>
                                <DataTemplate>
                                    <syncfusion:DropDownMenuItem Header="{Binding Name}" HorizontalAlignment="Left" Click="DropDownMenuItem_CountryClick">
                                    </syncfusion:DropDownMenuItem>
                                </DataTemplate>
                            </syncfusion:DropDownMenuGroup.ItemTemplate>
                        </syncfusion:DropDownMenuGroup>
                    </syncfusion:DropDownButtonAdv>
                </StackPanel>
                <Label HorizontalAlignment="Left" Margin="0,90,0,0" FontWeight="Bold">Date:</Label>
                <syncfusion:CalendarEdit Name="DateCalendarEdit" HorizontalAlignment="Left" Margin="100,0,0,0" Height="200" Width="200" AllowMultiplySelection="True"/>
                <syncfusion:ButtonAdv Height="44" Width="200" IconHeight="1" IconWidth="1" SizeMode="Normal" VerticalAlignment="Top" HorizontalAlignment="Right" Label="Open Economic Calendar Table"/>
            </syncfusion:TabItemExt>
        </syncfusion:TabControlExt>
    </Grid>
</Window>

[Karthick Arjunan]

Hi, 

We have prepared a sample based on the provided codes, in which the reported errors did not occur. We have attached the tested sample for your reference. Please check the attached sample and let us know your concerns.

If we misunderstood your requirements, please provide us with more details about your requirements and revert us with the modified sample that replicates the issue which will help us to provide the solution as soon as possible.

Regards,
Karthick Arjunan

Attachment: SyncfusionWpfDropdownTest_39f804fd.zip