ShrlAlgoToolkit/Wpf.Ui.Extend/Controls/ChooseBox/ChooseBox.xaml.cs

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

using Microsoft.Win32;

namespace Wpf.Ui.Extend.Controls;

public class ChooseBox : TextBox
{
	static ChooseBox()
	{
		DefaultStyleKeyProperty.OverrideMetadata(typeof(ChooseBox), new FrameworkPropertyMetadata(typeof(ChooseBox)));
	}

	private Button PART_ChooseButton;

	#region ChooseButtonStyle
	/// <summary>
	/// 获取或者设置选择按钮的样式
	/// </summary>
	public Style ChooseButtonStyle
	{
		get { return (Style)GetValue(ChooseButtonStyleProperty); }
		set { SetValue(ChooseButtonStyleProperty, value); }
	}
	public static readonly DependencyProperty ChooseButtonStyleProperty = DependencyProperty.Register(
		nameof(ChooseButtonStyle),
		typeof(Style),
		typeof(ChooseBox)
	);
	#endregion

	#region ChooseBoxType
	public ChooseBoxType ChooseBoxType
	{
		get { return (ChooseBoxType)GetValue(ChooseBoxTypeProperty); }
		set { SetValue(ChooseBoxTypeProperty, value); }
	}
	public static readonly DependencyProperty ChooseBoxTypeProperty = DependencyProperty.Register(
		nameof(ChooseBoxType),
		typeof(ChooseBoxType),
		typeof(ChooseBox),
		new PropertyMetadata(ChooseBoxType.SingleFile)
	);
	#endregion

	#region ChooseButtonWidth
	public double ChooseButtonWidth
	{
		get { return (double)GetValue(ChooseButtonWidthProperty); }
		set { SetValue(ChooseButtonWidthProperty, value); }
	}
	public static readonly DependencyProperty ChooseButtonWidthProperty = DependencyProperty.Register(
		nameof(ChooseButtonWidth),
		typeof(double),
		typeof(ChooseBox),
		new PropertyMetadata(20d)
	);
	#endregion

	#region ChooseBoxFilter
	public string Filter
	{
		get { return (string)GetValue(FilterProperty); }
		set { SetValue(FilterProperty, value); }
	}

	public static readonly DependencyProperty FilterProperty = DependencyProperty.Register(
		nameof(Filter),
		typeof(string),
		typeof(ChooseBox),
		new PropertyMetadata("文本文件|*.*")
	);
	#endregion

	#region DefaultFileName
	public string DefaultFileName
	{
		get { return (string)GetValue(DefaultFileNameProperty); }
		set { SetValue(DefaultFileNameProperty, value); }
	}

	public static readonly DependencyProperty DefaultFileNameProperty = DependencyProperty.Register(
		nameof(DefaultFileName),
		typeof(string),
		typeof(ChooseBox),
		new PropertyMetadata("文件")
	);
	#endregion

	#region DefaultExt
	public string DefaultExt
	{
		get { return (string)GetValue(DefaultExtProperty); }
		set { SetValue(DefaultExtProperty, value); }
	}

	public static readonly DependencyProperty DefaultExtProperty = DependencyProperty.Register(
		nameof(DefaultExt),
		typeof(string),
		typeof(ChooseBox),
		new PropertyMetadata("")
	);
	#endregion

	#region Override
	public override void OnApplyTemplate()
	{
		base.OnApplyTemplate();

		this.PART_ChooseButton = this.GetTemplateChild("PART_ChooseButton") as Button;
		if (this.PART_ChooseButton != null)
		{
			this.PART_ChooseButton.Click += PART_ChooseButton_Click;
		}
	}
	#endregion

	#region Event Implement Function
	private void PART_ChooseButton_Click(object sender, RoutedEventArgs e)
	{
		switch (this.ChooseBoxType)
		{
			case ChooseBoxType.SingleFile:
				OpenFileDialog openFileDialog =
					new()
					{
						Multiselect = false,
						//"文本文件|*.*|C#文件|*.cs|所有文件|*.*"
						Filter = this.Filter
					};
				if (openFileDialog.ShowDialog() == true)
					this.Text = openFileDialog.FileName;
				break;
			case ChooseBoxType.MultiFile:
				break;
			case ChooseBoxType.Folder:
				var folderDialog = new VistaFolderBrowserDialog();
				if (folderDialog.ShowDialog() == true)
					this.Text = folderDialog.SelectedPath;
				break;
			case ChooseBoxType.SaveFile:
				var fileDialog = new SaveFileDialog
				{
					Filter = this.Filter, //设置文件类型
					FileName = this.DefaultFileName, //设置默认文件名
					DefaultExt = this.DefaultExt, //设置默认格式（可以不设）
					AddExtension = true //设置自动在文件名中添加扩展名
				};
				if (fileDialog.ShowDialog() == true)
					this.Text = fileDialog.FileName;
				break;
		}
	}
	#endregion
}