App.xaml

<Application>
    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="/Telerik.Windows.Themes.Windows8;component/Themes/Telerik.Windows.Controls.xaml" />
                <ResourceDictionary Source="/Telerik.Windows.Themes.Windows8;component/Themes/Telerik.Windows.Controls.Data.xaml" />
                <ResourceDictionary Source="/Telerik.Windows.Themes.Windows8;component/Themes/Telerik.Windows.Controls.GridView.xaml" />
                <ResourceDictionary Source="/Telerik.Windows.Themes.Windows8;component/Themes/Telerik.Windows.Controls.Input.xaml" />
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>
</Application>

Employee_AutoGenerate.cs

public class Employee
{
    [Display(AutoGenerateField = false)]
    public string FirstName { get; set; }

    [Display(AutoGenerateField = false)]
    public string LastName { get; set; }

    [Display(AutoGenerateField = false)]
    public decimal Salary { get; set; }

    [Display(Order = 2)]
    public string Department { get; set; }

    [Display(Name = "Name", Order = 1)]
    public string FullName => $"{FirstName} {LastName}";

    [Display(Name = "Salary", Order = 3)]
    public string FormattedSalary => this.Salary.ToString("C");
}

Paging.xaml

<telerik:RadDataPager Grid.Row="1" Source="{Binding Items, ElementName=grid}" PageSize="5" DisplayMode="Next,Previous,Numeric,Text" />

RadGridView_Columns.xaml

<telerik:RadGridView ItemsSource="{x:Static local:SampleData.Employees}"
                     AutoGenerateColumns="False" ShowColumnFooters="True">
    <telerik:RadGridView.Columns>
        <telerik:GridViewDataColumn DataMemberBinding="{Binding FullName}" Header="Name" />
        <telerik:GridViewDataColumn DataMemberBinding="{Binding Department}" />
        <telerik:GridViewDataColumn DataMemberBinding="{Binding Salary, StringFormat={}{0:C}}">
            <telerik:GridViewDataColumn.AggregateFunctions>
                <telerik:MinFunction Caption="Min: " ResultFormatString="{}{0:C0}" />
                <telerik:AverageFunction Caption="Avg: " ResultFormatString="{}{0:C0}" />
                <telerik:MaxFunction Caption="Max: " ResultFormatString="{}{0:C0}" />
            </telerik:GridViewDataColumn.AggregateFunctions>
        </telerik:GridViewDataColumn>
    </telerik:RadGridView.Columns>
</telerik:RadGridView>