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DataGridColumnBindingHelper.cs

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Toto je zdrojový kód souboru DataGridColumnBindingHelper.cs

Silverlight helper class to set DataGridColumn properties via binding.

using System;
using System.Windows;
using System.Windows.Controls;

namespace SilverlightApplication
{
    /// <summary>
    /// Helper class to set DataGridColumn properties via binding.
    /// </summary>
    public class DataGridColumnBindingHelper
    {
        /// <summary>
        /// Header DependencyProperty
        /// </summary>
        public static readonly DependencyProperty HeaderProperty = DependencyProperty.RegisterAttached("Header", typeof(object), typeof(DataGridColumnBindingHelper), new PropertyMetadata(null, OnHeaderPropertyChanged));

        /// <summary>
        /// Header Property getter
        /// </summary>
        public static object GetHeader(DependencyObject source)
        {
            return (object)source.GetValue(DataGridColumnBindingHelper.HeaderProperty);
        }

        /// <summary>
        /// Header Property setter
        /// </summary>
        public static void SetHeader(DependencyObject target, object value)
        {
            target.SetValue(DataGridColumnBindingHelper.HeaderProperty, value);
        }

        private static void OnHeaderPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            var column = d as DataGridColumn;
            if (column == null)
            {
                return;
            }

            column.Header = e.NewValue;
        }

        /// <summary>
        /// Visibility DependencyProperty
        /// </summary>
        public static readonly DependencyProperty VisibilityProperty = DependencyProperty.RegisterAttached("Visibility", typeof(Visibility), typeof(DataGridColumnBindingHelper), new PropertyMetadata(Visibility.Visible, OnVisibilityPropertyChanged));

        /// <summary>
        /// Visibility Property getter
        /// </summary>
        public static Visibility GetVisibility(DependencyObject source)
        {
            return (Visibility)source.GetValue(DataGridColumnBindingHelper.VisibilityProperty);
        }

        /// <summary>
        /// Visibility Property setter
        /// </summary>
        public static void SetVisibility(DependencyObject target, Visibility value)
        {
            target.SetValue(DataGridColumnBindingHelper.VisibilityProperty, value);
        }

        private static void OnVisibilityPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            var column = d as DataGridColumn;
            if (column == null)
            {
                return;
            }

            column.Visibility = (Visibility)e.NewValue;
        }

        /// <summary>
        /// IsReadOnly DependencyProperty
        /// </summary>
        public static readonly DependencyProperty IsReadOnlyProperty = DependencyProperty.RegisterAttached("IsReadOnly", typeof(bool), typeof(DataGridColumnBindingHelper), new PropertyMetadata(false, OnIsReadOnlyPropertyChanged));

        /// <summary>
        /// IsReadOnly Property getter
        /// </summary>
        public static bool GetIsReadOnly(DependencyObject source)
        {
            return (bool)source.GetValue(DataGridColumnBindingHelper.IsReadOnlyProperty);
        }

        /// <summary>
        /// IsReadOnly Property setter
        /// </summary>
        public static void SetIsReadOnly(DependencyObject target, Visibility value)
        {
            target.SetValue(DataGridColumnBindingHelper.IsReadOnlyProperty, value);
        }

        private static void OnIsReadOnlyPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            var column = d as DataGridColumn;
            if (column == null)
            {
                return;
            }

            column.IsReadOnly = Convert.ToBoolean(e.NewValue);
        }
    }
}