How to: Customize Auto-Generated Columns in the DataGrid Control

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<UserControl 
    xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"
    x:Class="DGAutoGenColumn.Page"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Width="400" Height="300">
    <UserControl.Resources>
        <DataTemplate x:Key="dueDateCellTemplate">
            <TextBlock
            Text="{Binding DueDate}"
            Margin="5,4,5,4" />
        </DataTemplate>
        <DataTemplate x:Key="dueDateCellEditingTemplate">
            <sdk:DatePicker 
            SelectedDate="{Binding DueDate, Mode=TwoWay}" />
        </DataTemplate>
    </UserControl.Resources>
    <StackPanel x:Name="LayoutRoot" Background="White" Margin="5">
        <TextBlock Text="Column AutoGeneration" Foreground="#FF5C9AC9"
                   FontSize="18" FontFamily="Verdana" FontWeight="Bold" />
        <sdk:DataGrid x:Name="dataGrid1"
                   AutoGenerateColumns="True"
                   AutoGeneratingColumn="dataGrid1_AutoGeneratingColumn" />
    </StackPanel>
</UserControl>

using System;
using System.Collections.Generic;
using System.Windows;
using System.Windows.Controls;

namespace DGAutoGenColumn
{
    public partial class Page : UserControl
    {
        public Page()
        {
            InitializeComponent();
            // Generate some task data and add it to the task list.
            List<Task> taskList = new List<Task>();
            for (int i = 1; i <= 10; i++)
            {
                taskList.Add(new Task()
                {
                    Name = "Task " + i.ToString(),
                    DueDate = DateTime.Now.AddDays(i),
                    Complete = (i % 3 == 0),
                    Notes = "add notes..."
                });
            }
            this.dataGrid1.ItemsSource = taskList;
        }

        private void dataGrid1_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
        {
            // Modify the header of the Name column.
            if (e.Column.Header.ToString() == "Name")
                e.Column.Header = "Task";
            // Replace the DueDate column with a custom template column.
            if (e.PropertyName == "DueDate")
            {
                // Create a new template column.
                DataGridTemplateColumn templateColumn = new DataGridTemplateColumn();
                templateColumn.Header = "Due Date";
                templateColumn.CellTemplate = (DataTemplate)Resources["dueDateCellTemplate"];
                templateColumn.CellEditingTemplate = (DataTemplate)Resources["dueDateCellEditingTemplate"];
                templateColumn.SortMemberPath = "DueDate";
                // ...
                // Replace the auto-generated column with the templateColumn.
                e.Column = templateColumn;
            }

            // Cancel AutoGeneration of all boolean columns.
            if (e.PropertyType == typeof(bool))
                e.Cancel = true;
        }
    }

    public class Task
    {
        public string Name { get; set; }
        public DateTime DueDate { get; set; }
        public bool Complete { get; set; }
        public string Notes { get; set; }
    }
}