RadGridView Data Format

[Vladimir]

Hi.
I checked all blogs and still cannot find out how I can format phone number in the GridView cell.
I have a string in the database like 4445556666. I want to show 444-555-6666.
I tried DataFormatString="{}{0:##-###-####}" and "{}{0:000-000-0000}", but nothing happened, in the grid I have 4445556666.
Who can help?
Thank you.

[Vlad]

Hi,

Generally such format string will work if your original value is integer - if you have string you will need to use IValueConverter instead:

XAML

<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
    xmlns:local="clr-namespace:WpfApplication1"
    Title="Window1">
    <Grid>
        <Grid.Resources>
            <local:MyConverter x:Key="converter" />
        </Grid.Resources>
        <telerik:RadGridView ItemsSource="{Binding}" AutoGenerateColumns="False">
            <telerik:RadGridView.Columns>
                <telerik:GridViewDataColumn DataMemberBinding="{Binding ID}"/>
                <telerik:GridViewDataColumn DataMemberBinding="{Binding Phone, Converter={StaticResource converter}}" />
            </telerik:RadGridView.Columns>
        </telerik:RadGridView>
    </Grid>
</Window>

C#

using System;
using System.Linq;
using System.Windows;
using System.Windows.Data;

namespace WpfApplication1
{
    /// <summary>
    /// Interaction logic for Window1.xaml
    /// </summary>
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();

            DataContext = from i in Enumerable.Range(0, 100)
                          select new
                          {
                              ID = i,
                              Phone = "4445556666"
                          };
        }
    }

    public class MyConverter : IValueConverter
    {
        #region IValueConverter Members

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return System.Convert.ToInt64(value).ToString("##-###-####");
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return value;
        }

        #endregion
    }

}

All the best,
Vlad
the Telerik team

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[Vladimir]

Thank you, Vlad, it works fine.
I thought IValueConverter works only with numeric values.