DataBinding Problem

[Christian]

Hello,

I've noticed a small problem with the commandbar controls and databinding. Maybe this is not a bug, but however the commandbar controls behave different to the "normal" (Telerik) controls.

If you have something like this:

public partial class RadForm1 : Telerik.WinControls.UI.RadForm
    {
        public RadForm1()
        {
            InitializeComponent();

            List<myobject> source = new List<myobject>();
            BindingSource binding = new BindingSource();

            source.Add(new myobject(1, "a"));
            source.Add(new myobject(2, "b"));
            source.Add(new myobject(3, "c"));
            source.Add(new myobject(4, "d"));

            try
            {
                commandBarTextBox1.DataBindings.Add("Text", binding, "MyProperty2", true, DataSourceUpdateMode.OnValidation);
            }
            catch
            {
            }
            radTextBox1.DataBindings.Add("Text", binding, "MyProperty2", true, DataSourceUpdateMode.OnValidation);

            binding.DataSource = source;
            binding.MoveLast();
        }
    }

    public class myobject
    {
        public int MyProperty1 { get; set; }
        public string MyProperty2 { get; set; }

        public myobject(int a, string b)
        {
            MyProperty1 = a;
            MyProperty2 = b;
        }
    }

the databinding of the commandbartextbox will crash but the radtextbox works fine.The problem is that the binding datasource is set after the control databinding. 

Since the radcontrols and the .net controls work fine in this case it would be nice if the commandbar controls could too.

(Why are the commandbarcontrols not derived from the radcontrols? or at least have the same base class?)

Kind Regards,

Christian

[Dimitar]

Hello Christian,

Thank you for writing.

The data source is set after the binding is added to the controls. The command bar text box is a RadElement and it requires the data source to be set when the binding is added. The text box control requires the binding to have data source when it is made visible and this is why it is working with it. 

I hope this will be useful. 

Regards,
Dimitar
Telerik