C#, WPF Desktop DataGrid select first row.

Question

Hello,

   <DataGrid Grid.Column="0"        
                ItemsSource="{Binding View1}" 
                  IsReadOnly="True"
                  AutoGenerateColumns="False"  FontSize="18" SelectionMode="Single" SelectionUnit="FullRow" >
                <DataGrid.Resources>

The goal is to always have the first line active.
If there is a change in the list, the first line should be selected automatically via Code behind or the right settings (XAML) here.
I can select another line to see what the content is.
If something changes, select the first line again.

The first line is the active one.

How can I do that?

FirstIn, FirstOut

Answer 1

Hello Peter,
Almost right. Looks good too.

I have an order list. I'll fill it out.
Now the operator can select another order to see what it contains. He can't make any changes.

The order list is processed automatically.
Target quantity and current quantity. (code behind, the list is only read only)

The idea is then to select the first line again when making this change, because that is the active order.

Application.Current.Dispatcher.Invoke(() => { CViewSource1.View.MoveCurrentToFirst(); });

Works with it.

1-> I select a other row.
2 -> The code behind calls MoveCurrentToFirst --> Works too

How can I display the line in blue? Then the operator can see it better!
How can I simply assign a different color?

I think if i call this MoveCurrentToFirst(), the next should be to call something like this setFocus
How can I do it?

Answer 2

Hi Markus,
use MoveCurrentToFirst. Try demo:

<Window x:Class="WpfApp1.Window67"  
        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:WpfApp67"  
        mc:Ignorable="d"  
        Title="Window67" Height="450" Width="800">  
  <Window.DataContext>  
    <local:ViewModel/>  
  </Window.DataContext>  
  <Grid>  
    <DataGrid ItemsSource="{Binding View}"/>  
  </Grid>  
</Window>  

And Code: