Binding ListView's GridView to List<KeyValuePair> - wpf

Question

Here's how I am making my GridView:
The ListView will contain Entry objects which looks like this:
public class Entry
{
public Entry(BitmapImage icon = null, List<EntryKeyValuePair> entryKeyValuePairs = null)
{
Icon = icon;
EntryKeyValuePairs = entryKeyValuePairs ?? new List<EntryKeyValuePair>();
}
public BitmapImage Icon { get; set; }
public List<EntryKeyValuePair> EntryKeyValuePairs { get; }
}
EntryKeyValuePair is just a KeyValuePair<string,string> where Key is the Column and Value is the value of the column. I used a List of KeyValuePair because I want to preserve insertion order. Anyway, here's how I am constructing the GridView.
GridView = new GridView();
foreach (Column column in Category.Columns.Where(c => c.IsVisibleInTable)) {
var gridViewColumn = new GridViewColumn {
Header = column.Name,
DisplayMemberBinding = new Binding($"EntryKeyValuePairs[{column.Name}].Value")
};
GridView.Columns.Add(gridViewColumn);
}
I don't know what binding to set in DisplayMemberBinding. The above binding would work if EntryKeyValuePairs was a dictionary. But in my case it is not.
If I had access to the data object somehow, I could do
DisplayMemberBinding = new Binding($"EntryKeyValuePairs[{entry.EntryKeyValuePairs.FindIndex(p => p.Key == column.Name)}].Value")
How can I access the current Data Object which the ListView is holding while binding?

Answer 1

I found a solution. I used the GridViewColumn's CellTemplateSelector so that I can get a reference to the ListViews bound object. Here is how the CellTemplateSelector looks like. I had to create the DataTemplates in code.
class GridViewCellTemplateSelector : DataTemplateSelector
{
private readonly string _columnName;
public GridViewCellTemplateSelector(string columnName)
{
_columnName = columnName;
}
public override DataTemplate SelectTemplate(object item, DependencyObject container)
{
var entry = (Entry)item;
var dataTemplate = new DataTemplate {
DataType = typeof (Entry)
};
var stackPanelFactory = new FrameworkElementFactory(typeof(StackPanel));
stackPanelFactory.SetValue(StackPanel.OrientationProperty, Orientation.Vertical);
var text = new FrameworkElementFactory(typeof(TextBlock));
text.SetBinding(TextBlock.TextProperty, new Binding($"EntryKeyValuePairs[{entry.EntryKeyValuePairs.FindIndex(p => p.Key == _columnName)}].Value"));
stackPanelFactory.AppendChild(text);
dataTemplate.VisualTree = stackPanelFactory;
return dataTemplate;
}
}
Instead of DisplayMemberBinding, I used this TemplateSelector:
CellTemplateSelector = new GridViewCellTemplateSelector(column.Name)
All good. Hope this helps someone :) I still hope to see a better solution than this.