Suspend Databinding of Controls

Question

I have a series of controls that are databound to values that change every second or so. From time to time, I need to \"pause\" the controls, so that they do not update their d

Answer 1

First of all you need create explicit binding:

Binding binding = new Binding("Content");
binding.Source = source;
binding.UpdateSourceTrigger = UpdateSourceTrigger.LostFocus;
binding.Mode = BindingMode.TwoWay;
txtContent.SetBinding(TextBox.TextProperty, binding);

Then when you need pause twoway binding you need destroy old binding and create new oneway binding with explicit trigger(in this case you binding source will not be updated when some property has been changed):

BindingOperations.ClearBinding(txtContent, TextBlock.TextProperty);
Binding binding = new Binding("Content");
binding.Source = source;
binding.UpdateSourceTrigger = UpdateSourceTrigger.Explicit;
binding.Mode = BindingMode.OneWay;
txtContent.SetBinding(TextBox.TextProperty, binding);

When you need to resume twoway binding you can explicit update source(if you need it) than destroy oneway binding and create twoway binding.

BindingExpression be = txtContent.GetBindingExpression(TextBox.TextProperty);
be.UpdateSource();
BindingOperations.ClearBinding(txtContent, TextBlock.TextProperty);

Binding binding = new Binding("Content");
binding.Source = source;
binding.UpdateSourceTrigger = UpdateSourceTrigger.LostFocus;
binding.Mode = BindingMode.TwoWay;
txtContent.SetBinding(TextBox.TextProperty, binding);