private static void ValuePropertyDataFunc(Gtk.TreeViewColumn column, Gtk.CellRenderer cell, Gtk.TreeModel model, Gtk.TreeIter iter)
{
var treeView = (Gtk.TreeView)column.TreeView;
var info = Templating.GetTemplate(treeView) as TreeViewTemplate;
var textCell = (cell as Gtk.CellRendererText);
textCell.Text = string.Empty;
var value = model.GetValue(iter, 0);
if (value == null)
{
return;
}
foreach (var rowTemplate in info.RowTemplates)
{
if (value.GetType() == rowTemplate.TargetType)
{
//Here we have a value, which is the source for Binding, and a BindingInfo that is given by rowTemplate.ColumnBindings[column.Title] .
//The instance of the BindingInfo is shared among all values (rows), since it was defined once in the rowTemplate.
BindingInfo bindingInfo = null;
if (!rowTemplate.ColumnBindings.TryGetValue(column.Title, out bindingInfo))
{
return;
}
//The actual binding, on the other hand, is specific to the current (row,column) pair.
Binding binding = BindingEngine.GetOrCreateBinding(treeView, value, new TreeViewIterBindingTarget(treeView, iter, column), bindingInfo);
var propValue = binding.GetSourceValue();
textCell.Text = propValue == null ? String.Empty : propValue.ToString();
return;
}
}
}
public static Binding GetOrCreateBinding(Gtk.Widget widget, Object source, IBindingTarget target, BindingInfo info)
{
Binding result = null;
if (!mBindings.TryGetValue(target, out result))
{
result = new Binding();
result.Info = info;
result.Connect(widget, source, target);
mBindings[target] = result;
}
return(result);
}
public EntryTemplate SetTextBinding(String path)
{
mTextBinding = new BindingInfo() { Path = path };
return this;
}
public static Binding GetOrCreateBinding(Gtk.Widget widget, Object source, IBindingTarget target, BindingInfo info)
{
Binding result = null;
if (!mBindings.TryGetValue(target, out result)) {
result = new Binding();
result.Info = info;
result.Connect(widget, source, target);
mBindings[target] = result;
}
return result;
}
