Как автоматически менять название кнопки в XAML?

                <DataGridTemplateColumn Header="Buy/Sel" Width="70">
                    <DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
                            <Button x:Name ="btnOperation"  Click="Demonsracia" Content="Buy"/>
                        </DataTemplate>
                    </DataGridTemplateColumn.CellTemplate>
                </DataGridTemplateColumn>

 <TextBlock Grid.Row="0" HorizontalAlignment="Left" Width="120"
            DataContext="{Binding SelectedTool}" Text="{Binding Name}"/>
 <TextBlock Grid.Row="0" HorizontalAlignment="Left" Width="120"
            DataContext="{Binding SelectedTool}" Text="{Binding operation}"/>
 <TextBlock Grid.Row="0" HorizontalAlignment="Left" Width="120"
            DataContext="{Binding SelectedTool}" Text="{Binding SecurityCode}"/>

<TextBlock Grid.Row="0" HorizontalAlignment="Left" Width="120"  Text="{Binding SelectedTool.Name}"/>
  <TextBlock Grid.Row="0" HorizontalAlignment="Left" Width="120"  Text="{Binding SelectedTool.operation}"/>

        <TextBlock>
            <Run>В DataDrid выбрано - Name:</Run> 
            <Run Text="{Binding SelectedTool.Name}"></Run>
            <Run> operation:</Run>
            <Run Text="{Binding SelectedTool.operation}"></Run>
            <Run>SecurityCode:</Run>
            <Run Text="{Binding SelectedTool.SecurityCode}"></Run>
        </TextBlock>

        <StackPanel Grid.Row="0" Orientation="Vertical">
            <TextBlock Grid.Row="0" HorizontalAlignment="Left" Width="120"
                        Text="{Binding SelectedTool.Name}"/>
            <TextBlock Grid.Row="0" HorizontalAlignment="Left" Width="120"
                        Text="{Binding SelectedTool.operation}"/>
            <TextBlock Grid.Row="0" HorizontalAlignment="Left" Width="120"
                        Text="{Binding SelectedTool.SecurityCode}"/>
        </StackPanel>

            <StackPanel Grid.Row="0" Orientation="Horizontal">
                <Button FontSize="14" FontWeight="Bold" HorizontalAlignment="Left" Content="AddTool" Height="24" Width="72" Click="Button_Click_AddTool" RenderTransformOrigin="0.292,1.877"/>
                <TextBox Name="txBoxAddTool" Margin="5,0,50,0" FontSize="14" FontWeight="Bold" Width="120"></TextBox>
                <TextBlock FontSize="14" FontWeight="Bold" Grid.Row="0" HorizontalAlignment="Left" TextAlignment="Right" Width="100"
                           Text="{Binding SelectedTool.Name}"/>
                <TextBlock Margin="10,0,0,0"  FontSize="14" FontWeight="Bold" Grid.Row="0" HorizontalAlignment="Left" Width="25"
                           Text="{Binding SelectedTool.operation}"/>
                <TextBlock Margin="10,0,0,0" FontSize="14" FontWeight="Bold" Grid.Row="0" HorizontalAlignment="Left" Width="50"
                           Text="{Binding SelectedTool.SecurityCode}"/>
            </StackPanel>

<TextBlock>
       <Run Text="{Binding SelectedData.Description}"></Run>
   </TextBlock>

  <TextBlock>
      <Run>Description:</Run>
      <Run Text="{Binding SelectedData.Description, Mode=OneWay}"></Run>
      <Run>Name:</Run>
      <Run Text="{Binding SelectedData.Name, Mode=OneWay}"></Run>
  </TextBlock>