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                        Hello,
I just downloaded the trial version of your SL4 Controls. Most of my friends are recommending Telerik and so far I am really amazed by them.
After spending a lot of time reading this forum plus the RADTab documentation I still can't figure out how to incorporate the Details and Grid views of the same (Consultations for a Patient) inside one TAB Item.
Can you help me
The error (The property 'Content' is set more than once) occurs when I add the code inside
<!--DETAILS GRID START--> ......
XAML
.....
<!--DETAILS GRID END-->If I remove the XAML (inside the commented lines shown above) everything works fine
<navigation:Page x:Class="MedLink.Views.Pages.Patient"           mc:Ignorable="d"           xmlns:navigation="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Navigation"           d:DesignWidth="800" d:DesignHeight="800"           Title="Patient Page" xmlns:riaControls="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.DomainServices"                 xmlns:my="clr-namespace:MedLink.Web.Models"                 xmlns:my1="clr-namespace:MedLink.Web.Services"                 xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"                 BorderThickness="1"                 Background="#FFF5DF91"                 ToolTipService.ToolTip="Paciente">    <sdk:Page.Resources>        <CollectionViewSource x:Key="med_Patientmed_ConsultationsViewSource" Source="{Binding Path=Data.med_Consultations, ElementName=med_PatientDomainDataSource}" />    </sdk:Page.Resources>    <Grid x:Name="LayoutRoot" Background="#FFFDE191" AllowDrop="False">        <riaControls:DomainDataSource AutoLoad="True" d:DesignData="{d:DesignInstance my:med_Patient, CreateList=true}" Height="0" LoadedData="med_PatientDomainDataSource_LoadedData" Name="med_PatientDomainDataSource" QueryName="GetMed_PatientForDashBoardQuery" Width="0">            <riaControls:DomainDataSource.DomainContext>                <my1:MedLinkDomainContext />            </riaControls:DomainDataSource.DomainContext>        </riaControls:DomainDataSource>       <telerik:RadTabControl BackgroundVisibility="Collapsed"  x:Name="RadTabControl1" Background="Transparent" telerik:StyleManager.Theme="Office_Black">                        <!--Tab Info Patient -->            <telerik:RadTabItem Header="Patient" DataContext="{Binding ElementName=med_PatientDomainDataSource, Path=Data}" Height="24" Foreground="Black">                  <Grid DataContext="{Binding ElementName=med_PatientDomainDataSource, Path=Data}" HorizontalAlignment="Left" Name="gridInfoPatient" VerticalAlignment="Top" >                    <Grid.ColumnDefinitions>                        <ColumnDefinition Width="200" />                        <ColumnDefinition Width="240" />                        <ColumnDefinition Width="Auto" />                        <ColumnDefinition Width="Auto" />                    </Grid.ColumnDefinitions>                    <Grid.RowDefinitions>                        <RowDefinition Height="Auto" />                        <RowDefinition Height="Auto" />                          <RowDefinition Height="39*" />                    </Grid.RowDefinitions>                    <sdk:Label Content="Patient Name:" Grid.Column="0" Grid.Row="1" HorizontalAlignment="Right" Margin="3" VerticalAlignment="Center" MaxWidth="200" MinWidth="200"  />                    <sdk:Label Content="Patient Last:" Grid.Column="0" Grid.Row="2" HorizontalAlignment="Right" Margin="3" VerticalAlignment="Center" MaxWidth="200" MinWidth="200" />                    <TextBox Grid.Column="1" Grid.Row="1" Height="23" HorizontalAlignment="Left" Margin="3" Name="Patient_NameTextBox" Text="{Binding Path=Patient_Name, Mode=TwoWay, NotifyOnValidationError=true, ValidatesOnExceptions=true, TargetNullValue=''}" VerticalAlignment="Center" Width="230" HorizontalContentAlignment="Left" IsTabStop="True" MaxLength="50"/>                    <TextBox Grid.Column="1" Grid.Row="2" Height="23" HorizontalAlignment="Left" Margin="3" Name="Patient_LastTextBox" Text="{Binding Path=Patient_Last, Mode=TwoWay, NotifyOnValidationError=true, ValidatesOnExceptions=true, TargetNullValue=''}" VerticalAlignment="Center" Width="230" HorizontalContentAlignment="Left" IsTabStop="True" MaxLength="50"/>                </Grid>            </telerik:RadTabItem>            <!-- End Tab Info Patient -->            <!-- RadTabItem Consultations -->            <telerik:RadTabItem Header="Consultations" DataContext="{Binding}" Foreground="Black">                <!--DETAILS GRID START-->                <Grid DataContext="{Binding Source={StaticResource med_Patientmed_ConsultationsViewSource}, Path=CurrentItem}" HorizontalAlignment="Left" Margin="31,67,0,0" Name="grid1" VerticalAlignment="Top">                    <Grid.ColumnDefinitions>                        <ColumnDefinition Width="Auto" />                        <ColumnDefinition Width="Auto" />                    </Grid.ColumnDefinitions>                    <Grid.RowDefinitions>                        <RowDefinition Height="Auto" />                        <RowDefinition Height="Auto" />                        <RowDefinition Height="Auto" />                        <RowDefinition Height="Auto" />                        <RowDefinition Height="Auto" />                        <RowDefinition Height="Auto" />                    </Grid.RowDefinitions>                    <sdk:Label Content="Consult Date:" Grid.Column="0" Grid.Row="3" HorizontalAlignment="Left" Margin="3" VerticalAlignment="Center" />                    <sdk:DatePicker Grid.Column="1" Grid.Row="3" Height="23" HorizontalAlignment="Left" Margin="3" Name="consult_DateDatePicker" SelectedDate="{Binding Path=Consult_Date, Mode=TwoWay, NotifyOnValidationError=true, ValidatesOnExceptions=true, TargetNullValue=''}" VerticalAlignment="Center" Width="120" />                    <sdk:Label Content="Consult Diagnosis:" Grid.Column="0" Grid.Row="4" HorizontalAlignment="Left" Margin="3" VerticalAlignment="Center" />                    <TextBox Grid.Column="1" Grid.Row="4" Height="23" HorizontalAlignment="Left" Margin="3" Name="consult_DiagnosisTextBox" Text="{Binding Path=Consult_Diagnosis, Mode=TwoWay, NotifyOnValidationError=true, ValidatesOnExceptions=true, TargetNullValue=''}" VerticalAlignment="Center" Width="120" />                    <sdk:Label Content="Medication Notes:" Grid.Column="0" Grid.Row="5" HorizontalAlignment="Left" Margin="3" VerticalAlignment="Center" />                    <TextBox Grid.Column="1" Grid.Row="5" Height="23" HorizontalAlignment="Left" Margin="3" Name="medication_NotesTextBox" Text="{Binding Path=Medication_Notes, Mode=TwoWay, NotifyOnValidationError=true, ValidatesOnExceptions=true, TargetNullValue=''}" VerticalAlignment="Center" Width="120" />                </Grid>                <!--DETAILS GRID END-->                <telerik:RadGridView ItemsSource="{Binding Source={StaticResource med_Patientmed_ConsultationsViewSource}}"                                                  RowIndicatorVisibility="Collapsed"                                                 AutoGenerateColumns="False"                                                 CanUserFreezeColumns="False"                                                 BorderThickness="0"                                                 CanUserResizeColumns="False"                                                ShowGroupPanel="False" Height="191" VerticalAlignment="Bottom">                    <telerik:RadGridView.RowDetailsTemplate>                        <DataTemplate>                            <telerik:RadGridView AutoGenerateColumns="False" IsFilteringAllowed="False"                                                                          ItemsSource="{Binding Source={StaticResource med_Patientmed_ConsultationsViewSource}}"                                                             CanUserReorderColumns="False"                                                                          CanUserFreezeColumns="False" CanUserResizeColumns="False"                                                                          ShowGroupPanel="False"                                                                          Margin="6">                                <telerik:RadGridView.Columns>                                    <telerik:GridViewToggleRowDetailsColumn CellStyle="{StaticResource GridViewToggleButtonColumnStyle}" />                                </telerik:RadGridView.Columns>                            </telerik:RadGridView>                        </DataTemplate>                    </telerik:RadGridView.RowDetailsTemplate>                    <telerik:RadGridView.Columns >                        <telerik:GridViewToggleRowDetailsColumn CellStyle="{StaticResource GridViewToggleButtonColumnStyle}" />                        <telerik:GridViewDataColumn Header="Purpose" DataMemberBinding="{Binding Path=Consult_Purpose, Mode=OneWay, NotifyOnValidationError=true, ValidatesOnExceptions=true, TargetNullValue=''}" Width="70" />                        <telerik:GridViewDataColumn Header="Date" DataMemberBinding="{Binding Path=Consult_Date, Mode=OneWay, NotifyOnValidationError=true, ValidatesOnExceptions=true, TargetNullValue=''}" Width="70"/>                        <telerik:GridViewDataColumn Header="Next Consultation" DataMemberBinding="{Binding Path=Directions_Next_Consult, Mode=OneWay, NotifyOnValidationError=true, ValidatesOnExceptions=true, TargetNullValue=''}" Width="70"/>                        <telerik:GridViewDataColumn Header="Recomendations" DataMemberBinding="{Binding Path=Consult_Patient_recomendations, Mode=OneWay, NotifyOnValidationError=true, ValidatesOnExceptions=true, TargetNullValue=''}" Width="70"/>                    </telerik:RadGridView.Columns>                </telerik:RadGridView>            </telerik:RadTabItem>            <!-- end Tab  Consultas -->        </telerik:RadTabControl>    </Grid></navigation:Page>