packages/MaterialDesignThemes.2.5.1/src/net45/TextFieldAssist.cs

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using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
using System.Windows.Documents;
using System.Windows.Media;

namespace MaterialDesignThemes.Wpf
{
    /// <summary>
    /// Helper properties for working with text fields.
    /// </summary>
    public static class TextFieldAssist
    {
        /// <summary>
        /// The text box view margin property
        /// </summary>
        public static readonly DependencyProperty TextBoxViewMarginProperty = DependencyProperty.RegisterAttached(
            "TextBoxViewMargin",
            typeof(Thickness),
            typeof(TextFieldAssist),
            new FrameworkPropertyMetadata(new Thickness(double.NegativeInfinity), FrameworkPropertyMetadataOptions.Inherits, TextBoxViewMarginPropertyChangedCallback));

        /// <summary>
        /// Sets the text box view margin.
        /// </summary>
        /// <param name="element">The element.</param>
        /// <param name="value">The value.</param>
        public static void SetTextBoxViewMargin(DependencyObject element, Thickness value)
        {
            element.SetValue(TextBoxViewMarginProperty, value);
        }

        /// <summary>
        /// Gets the text box view margin.
        /// </summary>
        /// <param name="element">The element.</param>
        /// <returns>
        /// The <see cref="Thickness" />.
        /// </returns>
        public static Thickness GetTextBoxViewMargin(DependencyObject element)
        {
            return (Thickness)element.GetValue(TextBoxViewMarginProperty);
        }


        /// <summary>
        /// Controls the visibility of the underline decoration.
        /// </summary>
        public static readonly DependencyProperty DecorationVisibilityProperty = DependencyProperty.RegisterAttached(
            "DecorationVisibility", typeof(Visibility), typeof(TextFieldAssist), new PropertyMetadata(default(Visibility)));

        /// <summary>
        /// Controls the visibility of the underline decoration.
        /// </summary>
        public static void SetDecorationVisibility(DependencyObject element, Visibility value)
        {
            element.SetValue(DecorationVisibilityProperty, value);
        }