Windows Forms simple example showing Radiobutton DataBinding

Question

Question is for Windows Forms DataBinding

Let's say this is my custom class

public class SimpleClass : INotifyPropertyChanged
{

  public Name
  {get; set;}

  char OrderType;
  ...

}

OrderType is P for purchase order, S for sales order. I for Invoice etc that I need to show as a group of radiobuttons on the Windows Form

for textboxes this is the databinding syntax

Binding nameBinding = new Binding("Text", this.SimpleObject, "Name", true);
this.nameTextBox.DataBindings.Add(nameBinding);

How to databind the OrderType to a groupbox that contains three radiobuttons

Answer 1

Two issues:

1. DataBinding works on properties only. As you have it, OrderType is a field.
2. Binding to RadioButtons in this fashion (as most people would want to do), isn't something natively supported. The only real way to do this is to create a single control that manages one or more RadioButtons and provides a SelectedValue (or equivalent) property, then bind the value to that. There are several third party solutions to this, and I can recommend the DevExpress controls.

Answer 2

Here's an example of DataBinding a set of RadioButtons (the author calls this a RadioPanel) with a property backed with an enum (in place of your char):

RadioPanel: Binding RadioButton Groups to Enumeration Properties

I haven't tried it.

Otherwise, what worked for me was to create a User Control with a few RadioButtons. The key was to implement INotifyPropertyChanged on the UC and use the RadioButtons' CheckedChanged event to set the value of the property associated with my UC.