bind List<string> to GridViewColumn - wpf

Question

I have a GridView like following.
<Grid>
<ListView Margin="8,44,8,50" TabIndex="57" Name="CustomFieldList">
<ListView.View>
<GridView AllowsColumnReorder="False">
<GridViewColumn Header="Semester Name" Width="120" DisplayMemberBinding="{Binding FieldName}"/>
<GridViewColumn Header="Subjects" Width="150" DisplayMemberBinding="{Binding TypeValidations}"/>
</GridView>
</ListView.View>
</ListView>
</Grid>
My class is;
public class DigreePrograme
{
public string semester{ get; set; }
public List<string> subjects { get; set; }
}
I have an observer collection and I have bound that to list.
static ObservableCollection<DigreePrograme> digreeList = new ObservableCollection<DigreePrograme>();
public ObservableCollection<DigreePrograme> DigreeList
{
get { return digreeList }
set { digreeList = value; OnPropertyChanged("DigreeList"); }
}
on the FormFoad
CustomFieldList.ItemsSource=DigreeList;
Issue
semester property displays perfectly. But Subject List not. It displys as Collection. How to fix this?

Answer 1

You could add a ItemsControl in a DataTemplate in your GridViewColumn to show all the Subject items
xaml:
<Window x:Class="WpfApplication11.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="275" Width="275" x:Name="UI">
<Grid>
<ListView Name="CustomFieldList" ItemsSource="{Binding ElementName=UI, Path=DigreeList}" >
<ListView.View>
<GridView AllowsColumnReorder="False">
<GridViewColumn Header="Semester Name" Width="120" DisplayMemberBinding="{Binding Semester}"/>
<GridViewColumn Header="Subjects" Width="150" >
<GridViewColumn.CellTemplate>
<DataTemplate>
<ItemsControl ItemsSource="{Binding Subjects}" Width="150" />
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.View>
</ListView>
</Grid>
</Window>
Code:
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
DigreeList.Add(new DigreePrograme { Semester = "Semester 1", Subjects = new List<string>(new string[] {"Math","Art","Engish" }) });
}
private ObservableCollection<DigreePrograme> digreeList = new ObservableCollection<DigreePrograme>();
public ObservableCollection<DigreePrograme> DigreeList
{
get { return digreeList; }
set { digreeList = value;}
}
}
public class DigreePrograme
{
public string Semester { get; set; }
public List<string> Subjects { get; set; }
}
result:

Answer 2

I would suggest you create a new string property on your view model that would just concatenate your collection and return that. It would be the simplest way to go about this..
public class DigreePrograme
{
public string semester { get; set; }
public List<string> subjects { get; set; }
public string SubjectsDisplay
{
get
{
string returnVal = string.Empty;
foreach (string subject in subjects)
{
returnVal += subject + ", ";
}
return returnVal.TrimEnd(',', ' ');
}
}
}
something like that may help.
obviously change your binding also :)
cheers.
ste.