Dlaczego nie mogę wybrać komórek w moim datagrid WPF?

Question

Mam DataGrid WPF, który wygląda tak:

<DataGrid x:Name="dataGridOrderItems" Margin="369,0,4,51" VerticalAlignment="Bottom" Height="405" Grid.Row="1" 
    VerticalGridLinesBrush="LightGray" HorizontalGridLinesBrush="LightGray" AlternatingRowBackground="Beige" AlternationCount="2" SelectionMode="Single" 
    SelectionChanged="dataGridOutstandingOrders_SelectionChanged" AutoGenerateColumns="False" IsReadOnly="True" Grid.ColumnSpan="2"> 
    <DataGrid.Columns> 
     <DataGridTextColumn Header="Resource Name" Binding="{Binding ResourceName}" /> 
     <DataGridTextColumn Header="Quantity Ordered" Binding="{Binding Quantity}" /> 
     <DataGridTextColumn Header="Order Date" Binding="{Binding OrderDate, StringFormat=\{0:d\}}" /> 
     <DataGridCheckBoxColumn Header="Dispatched Resource" Binding="{Binding IsChecked}" /> 
     <DataGridTextColumn/> 
    </DataGrid.Columns> 
</DataGrid> 

Choć DataGrid jest włączona i mam określony tryb wyboru nie mogę kliknąć na którekolwiek z tych komórek. Czego jeszcze brakuje?

W przypadku jest to istotne, oto pełna XAML dla okna:

<Window x:Class="OrderProcessor.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:OrderProcessor" 
     mc:Ignorable="d" 
     Title="Order Processing" Height="727.625" Width="1088" Icon="1438333970_Delivery.ico"> 
    <Grid Margin="0,0,2,0"> 
     <Grid.ColumnDefinitions> 
      <ColumnDefinition Width="9*"/> 
      <ColumnDefinition Width="14*"/> 
     </Grid.ColumnDefinitions> 
     <Grid.RowDefinitions> 
      <RowDefinition Height="94*"/> 
      <RowDefinition Height="315*"/> 
     </Grid.RowDefinitions> 
     <Button x:Name="buttonRefreshOrders" Content="Load/Refresh Orders List" Margin="0,36,10,0" RenderTransformOrigin="-0.72,-2.65" ToolTip="Click to refresh the orders list with the latest orders from SharePoint" Grid.Column="1" HorizontalAlignment="Right" Width="140" Height="36" VerticalAlignment="Top" Click="buttonRefreshOrders_Click"/> 
     <DataGrid x:Name="dataGridOutstandingOrders" Margin="11,7,156,470" RenderTransformOrigin="0.5,0.5" Grid.RowSpan="2" Grid.ColumnSpan="2" VerticalGridLinesBrush="LightGray" HorizontalGridLinesBrush="LightGray" AlternatingRowBackground="Beige" AlternationCount="2" SelectionMode="Single" SelectionUnit="FullRow" SelectionChanged="dataGridOutstandingOrders_SelectionChanged" AutoGenerateColumns="False" IsReadOnly="True"> 
      <DataGrid.Columns> 
       <DataGridTextColumn Header="Persona" Binding="{Binding Persona }" /> 
       <DataGridTextColumn Header="Customer Name" Binding="{Binding CustomerName }" /> 
       <DataGridTextColumn Header="Organization" Binding="{Binding Organization }" /> 
       <DataGridTextColumn Header="E-mail" Binding="{Binding Email }" /> 
       <DataGridTextColumn Header="Phone" Binding="{Binding PhoneNumber }" /> 
       <DataGridTextColumn Header="Street" Binding="{Binding Street }" /> 
       <DataGridTextColumn Header="Suburb" Binding="{Binding Suburb }" /> 
       <DataGridTextColumn Header="Postcode" Binding="{Binding Postcode }" /> 
       <DataGridTextColumn Header="Order Date" Binding="{Binding OrderDate , StringFormat={}{0:d}}" /> 

      </DataGrid.Columns> 
     </DataGrid> 
     <Button x:Name="button_Dispatch_Current_Item" Content="Set selected resources to be dispatched" Margin="0,0,10,10" RenderTransformOrigin="-0.72,-2.65" ToolTip="" HorizontalAlignment="Right" Width="462" Grid.Row="1" Grid.Column="1" Height="36" VerticalAlignment="Bottom"/> 
     <GroupBox x:Name="groupBoxCustomerDetails" Header="Customer Details" Margin="11,0,0,10" Grid.Row="1" 
        Grid.Column="0" VerticalAlignment="Bottom" Height="455" HorizontalAlignment="Left" Width="353"> 
      <StackPanel> 
       <Label x:Name="labelCustomerName" Content="" HorizontalAlignment="Left" VerticalAlignment="Top" FontSize="16" FontWeight="Bold"/> 
       <Label x:Name="labelCustomerOrganization" Content="" HorizontalAlignment="Left" VerticalAlignment="Top" FontSize="16" /> 
       <Label x:Name="labelCustomerStreet" Content="" HorizontalAlignment="Left" VerticalAlignment="Top" FontSize="16" /> 
       <Label x:Name="labelCustomerSuburb" Content="" HorizontalAlignment="Left" VerticalAlignment="Top" FontSize="16" /> 
       <Label x:Name="labelCustomerPostcode" Content="" HorizontalAlignment="Left" VerticalAlignment="Top" FontSize="16" /> 
      </StackPanel> 
     </GroupBox> 
     <DataGrid x:Name="dataGridOrderItems" Margin="369,0,4,51" VerticalAlignment="Bottom" Height="405" RenderTransformOrigin="0.5,0.5" Grid.Row="1" 
      VerticalGridLinesBrush="LightGray" HorizontalGridLinesBrush="LightGray" AlternatingRowBackground="Beige" AlternationCount="2" SelectionMode="Single" 
      SelectionChanged="dataGridOutstandingOrders_SelectionChanged" AutoGenerateColumns="False" IsReadOnly="True" Grid.ColumnSpan="2"> 
      <DataGrid.RenderTransform> 
       <TransformGroup> 
        <ScaleTransform/> 
        <SkewTransform AngleY="-0.146"/> 
        <RotateTransform/> 
        <TranslateTransform Y="-0.497"/> 
       </TransformGroup> 
      </DataGrid.RenderTransform> 
      <DataGrid.Columns> 
       <DataGridTextColumn Header="Resource Name" Binding="{Binding ResourceName}" /> 
       <DataGridTextColumn Header="Quantity Ordered" Binding="{Binding Quantity}" /> 
       <DataGridTextColumn Header="Order Date" Binding="{Binding OrderDate, StringFormat=\{0:d\}}" /> 
       <DataGridCheckBoxColumn Header="Dispatched Resource" Binding="{Binding IsChecked}" /> 
       <DataGridTextColumn/> 
      </DataGrid.Columns> 
     </DataGrid> 
    </Grid> 
</Window> 

Answer 1

Skończyło się rozwiązać ten sam - wygląda na to, że nie mają oba tryby wyboru. Zmieniony (XAML roboczy):

<DataGrid x:Name="dataGridOrderItems" Margin="369,0,4,51" VerticalAlignment="Bottom" Height="405" Grid.Row="1" 
VerticalGridLinesBrush="LightGray" HorizontalGridLinesBrush="LightGray" AlternatingRowBackground="Beige" AlternationCount="2" 
SelectionMode="Single" SelectionUnit="FullRow" 
AutoGenerateColumns="False" IsReadOnly="False" Grid.ColumnSpan="2"> 
    <DataGrid.Columns> 
     <DataGridTextColumn Header="Resource Name" Binding="{Binding ResourceName}" /> 
     <DataGridTextColumn Header="Quantity Ordered" Binding="{Binding Quantity}" /> 
     <DataGridTextColumn Header="Order Date" Binding="{Binding OrderDate, StringFormat=\{0:d\}}" /> 
     <DataGridCheckBoxColumn Header="Dispatched Resource" Binding="{Binding IsChecked}" /> 
     <DataGridTextColumn/> 
    </DataGrid.Columns> 
</DataGrid> 

Answer 2

myślę nieruchomość IsReadOnly przyczyna ta. Po zmianie isReadOnly na "False", aby go rozwiązać.