Question

I’m new to this and Google isn’t helping me this time. I was able to follow some examples and populate a DataGrid and modify a database, but ListView is giving me a problem. Here is my class:

public class GlobalDataviews : INotifyPropertyChanged   
{
    ...

    //Billable data table
    //Populated elsewhere with "SELECT ID, Value FROM BillableTable;"
    private DataTable mBillable;
    public DataView Billable()
    {
        return mBillable.DefaultView; 
    }  
}

Here is my XAML snippets:

<Window.Resources>
    <ObjectDataProvider x:Key="GlobalDataviews" ObjectType="{x:Type local:GlobalDataviews}" />
    <ObjectDataProvider x:Key="BillableData" ObjectInstance="{StaticResource GlobalDataviews}" MethodName="Billable" />
</Window.Resources>

And now for my ListView:

<ListBox Name="listBox1" DataContext="{StaticResource BillableData}" SelectedValuePath="ID" DisplayMemberPath="Value"/>

I’m probably missing something very simple. What is the correct method? I would also like to bind the selected value (no multiselect) to another property from my code. Can anyone help? Not sure why I’m getting so confused.

Answer 1

If you are setting DataContext, you have to set the ItemsSource property to bind data.

<ListBox x:Name="listBox1" DataContext="{StaticResource BusinessData}" ItemsSource="{Binding}" SelectedValuePath="ID" DisplayMemberPath="Value" />

Otherwise, you can bind the ItemsSource directly as follows:

<ListBox x:Name="listBox1" ItemsSource="{Binding Source={StaticResource BusinessData}}" SelectedValuePath="ID" DisplayMemberPath="Value" />