/// <summary>
/// Replaces the source object that is bound to target.
/// </summary>
public static void ReplaceBindingSource(this IBindingScope scope, object source, string targetPropertyName)
{
var allBindingExpressions = scope.GetBindingExpressions();
var bindingExpressions = allBindingExpressions.Where(x => string.IsNullOrEmpty(targetPropertyName) || x.TargetProperty.Equals(targetPropertyName)).ToList();
var newExpressions = new List<IBindingExpression>();
foreach (var expression in bindingExpressions)
{
var newExpression = new WeakBindingExpression(expression.Target, expression.TargetProperty, source, expression.Binding);
newExpression.Bind();
newExpressions.Add(newExpression);
}
// don't remove all bindings, just the ones we replaced
foreach (var expression in bindingExpressions)
{
scope.Remove(expression);
}
foreach (var expression in newExpressions)
{
scope.Add(expression);
}
}
protected virtual IBindingExpression GetExpression()
{
var binding = new WeakBindingExpression(this.Target, "PropertyA", this.Source, this.Binding);
binding.Bind();
return binding;
}
