[Solved] Custom column not getting the new cell value

[Alon Agmon]

Hi,
I have a simple custom cell with a button and a text box
this is the code of the custom control , that will be used in edit mode

public static readonly DependencyProperty SelectedTextProperty =
            DependencyProperty.Register("SelectedText", typeof(String), typeof(AsteaButtonFieldCtl),
            new PropertyMetadata(null, OnSelectedTextChanged));

        public AsteaButtonFieldCtl()
        {
            InitializeComponent();
        }

        public String SelectedText
        {
            get { return (String) this.GetValue(SelectedTextProperty); }
            set { this.SetValue(SelectedTextProperty, value); }
        }


        private static void OnSelectedTextChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            var ctl = (AsteaButtonFieldCtl)d;
            ctl.NewTextUpdate((string)e.NewValue);
        }

        private void NewTextUpdate(string newText)
        {
            this.txt.Text = newText;
        }

        private void btn_Click(object sender, RoutedEventArgs e)
        {
            //nothing right now
        }

        private void txt_TextChanged(object sender, TextChangedEventArgs e)
        {
            this.SelectedText = txt.Text;
        }

BTW - while debugging this, events are called the values are being updated correctly
this user control is bound to a column

 public override FrameworkElement CreateCellEditElement(Telerik.Windows.Controls.GridView.GridViewCell cell, object dataItem)
        {
            var lookupCtl = new AsteaButtonFieldCtl();
            lookupCtl.SetBinding(AsteaButtonFieldCtl.SelectedTextProperty, this.CreateValueBinding());
            return lookupCtl;
        }
        private Binding CreateValueBinding()
        {
            var valueBinding = new Binding();
            valueBinding.Mode = BindingMode.TwoWay;

            valueBinding.NotifyOnValidationError = true;
            valueBinding.ValidatesOnExceptions = true;
            valueBinding.UpdateSourceTrigger = UpdateSourceTrigger.Explicit;
            valueBinding.Path = new PropertyPath(this.DataMemberBinding.Path.Path);
            return valueBinding;
        }

Now... the problem!

everything is displayed correctly , but, after i finish editing the column data ,
i have a CellEditEnded event for post processing the values
and in that event
e.OldData // get the old value correctly
 e.NewData // this is null !!

any idea how to resolve this .. ?

Alon
(using the SL 2010 version)
string oldValue = .ToString();

[Alon Agmon]

any idea..?

[Nedyalko Nikolov]

Hi Alon Agmon,

Sorry for the late answer. You should also override Column.GetNewValueFromEditor() method and its returned value will be passed to the CellEditEndedEventArgs.NewValue property. I hope this will help.

Greetings,
Nedyalko Nikolov
the Telerik team

Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.