优化更新代码，添加界面功能并整合
This commit is contained in:
GG Z
299
WPFluent/Controls/CheckComboBox/CheckComboBox.cs
Normal file
299
WPFluent/Controls/CheckComboBox/CheckComboBox.cs
Normal file
@@ -0,0 +1,299 @@
|
||||
|
||||
|
||||
using WPFluent.Extensions;
|
||||
|
||||
using System;
|
||||
using System.Collections.ObjectModel;
|
||||
using System.Linq;
|
||||
using System.Windows.Controls;
|
||||
using System.Windows.Controls.Primitives;
|
||||
|
||||
using System.Windows.Data;
|
||||
|
||||
|
||||
namespace WPFluent.Controls
|
||||
{
|
||||
/// <summary>
|
||||
/// 通过该类，对绑定的集合->重新创建为CheckComboBoxItem->应用默认样式
|
||||
/// </summary>
|
||||
public class CheckComboBox : ComboBoxEx
|
||||
{
|
||||
#region Internal
|
||||
/// <summary>
|
||||
/// 行选中
|
||||
/// </summary>
|
||||
/// <param name="item"></param>
|
||||
internal void NotifyCheckComboBoxItemClicked(CheckComboBoxItem item)
|
||||
{
|
||||
var itemContent = Convert.ToString(item.Content);
|
||||
SelectedStrList ??= [];
|
||||
SelectedObjList ??= [];
|
||||
if(item.IsSelected)
|
||||
{
|
||||
if(!SelectedStrList.Contains(item.Content))
|
||||
{
|
||||
SelectedStrList.Add(itemContent);
|
||||
}
|
||||
if(!SelectedObjList.Contains(item.DataContext))
|
||||
{
|
||||
SelectedObjList.Add(item.DataContext);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
if(SelectedStrList.Contains(itemContent))
|
||||
{
|
||||
SelectedStrList.Remove(itemContent);
|
||||
}
|
||||
if(SelectedObjList.Contains(item.DataContext))
|
||||
{
|
||||
SelectedObjList.Remove(item.DataContext);
|
||||
}
|
||||
}
|
||||
SetCheckComboBoxValueAndContent();
|
||||
}
|
||||
#endregion
|
||||
|
||||
#region PrivateProperty
|
||||
private ContentPresenter PART_ContentSite;
|
||||
private TextBox PART_FilterTextBox;
|
||||
private ICollectionView view;
|
||||
private Popup PART_Popup;
|
||||
|
||||
private bool popupIsFirstOpen;
|
||||
#endregion
|
||||
|
||||
#region DependencyProperty
|
||||
public static readonly DependencyProperty ContentProperty =
|
||||
DependencyProperty.Register(
|
||||
nameof(Content),
|
||||
typeof(string),
|
||||
typeof(CheckComboBox),
|
||||
new PropertyMetadata(string.Empty));
|
||||
|
||||
/// <summary>
|
||||
/// 内容
|
||||
/// </summary>
|
||||
public string Content
|
||||
{
|
||||
get { return (string)GetValue(ContentProperty); }
|
||||
set { SetValue(ContentProperty, value); }
|
||||
}
|
||||
|
||||
public static readonly DependencyProperty ValueProperty =
|
||||
DependencyProperty.Register(
|
||||
nameof(Value),
|
||||
typeof(string),
|
||||
typeof(CheckComboBox),
|
||||
new PropertyMetadata(string.Empty));
|
||||
|
||||
/// <summary>
|
||||
/// 值
|
||||
/// </summary>
|
||||
public string Value { get { return (string)GetValue(ValueProperty); } set { SetValue(ValueProperty, value); } }
|
||||
|
||||
#region SelectedObjList
|
||||
[Bindable(true), Description("获取或者设置当前勾选项列表")]
|
||||
public ObservableCollection<object> SelectedObjList
|
||||
{
|
||||
get { return (ObservableCollection<object>)GetValue(SelectedObjListProperty); }
|
||||
set { SetValue(SelectedObjListProperty, value); }
|
||||
}
|
||||
|
||||
public static readonly DependencyProperty SelectedObjListProperty =
|
||||
DependencyProperty.Register(
|
||||
nameof(SelectedObjList),
|
||||
typeof(ObservableCollection<object>),
|
||||
typeof(CheckComboBox),
|
||||
new PropertyMetadata(null, OnSelectedObjListChanged));
|
||||
|
||||
private static void OnSelectedObjListChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
|
||||
{
|
||||
var checkComboBox = d as CheckComboBox;
|
||||
if(checkComboBox.ItemsSource != null)
|
||||
checkComboBox.SetCheckComboBoxValueAndContent();
|
||||
}
|
||||
#endregion
|
||||
|
||||
#region SelectedStrList
|
||||
public ObservableCollection<string> SelectedStrList
|
||||
{
|
||||
get { return (ObservableCollection<string>)GetValue(SelectedStrListProperty); }
|
||||
set { SetValue(SelectedStrListProperty, value); }
|
||||
}
|
||||
|
||||
public static readonly DependencyProperty SelectedStrListProperty =
|
||||
DependencyProperty.Register(
|
||||
nameof(SelectedStrList),
|
||||
typeof(ObservableCollection<string>),
|
||||
typeof(CheckComboBox));
|
||||
#endregion
|
||||
|
||||
/// <summary>
|
||||
/// 获取或者设置最多显示的选中个数
|
||||
/// </summary>
|
||||
public int MaxShowNumber
|
||||
{
|
||||
get { return (int)GetValue(MaxShowNumberProperty); }
|
||||
set { SetValue(MaxShowNumberProperty, value); }
|
||||
}
|
||||
|
||||
public static readonly DependencyProperty MaxShowNumberProperty =
|
||||
DependencyProperty.Register(
|
||||
nameof(MaxShowNumber),
|
||||
typeof(int),
|
||||
typeof(CheckComboBox),
|
||||
new PropertyMetadata(3));
|
||||
|
||||
#endregion
|
||||
|
||||
#region Constructors
|
||||
static CheckComboBox()
|
||||
{
|
||||
DefaultStyleKeyProperty.OverrideMetadata(
|
||||
typeof(CheckComboBox),
|
||||
new FrameworkPropertyMetadata(typeof(CheckComboBox)));
|
||||
}
|
||||
|
||||
public CheckComboBox()
|
||||
{
|
||||
SelectedObjList = [];
|
||||
SelectedStrList = [];
|
||||
}
|
||||
#endregion
|
||||
|
||||
#region Override
|
||||
public override void OnApplyTemplate()
|
||||
{
|
||||
base.OnApplyTemplate();
|
||||
|
||||
if(PART_FilterTextBox != null)
|
||||
{
|
||||
PART_FilterTextBox.TextChanged -= PART_FilterTextBox_TextChanged;
|
||||
}
|
||||
if(PART_Popup != null)
|
||||
{
|
||||
PART_Popup.Opened -= PART_Popup_Opened;
|
||||
}
|
||||
|
||||
PART_ContentSite = GetTemplateChild("PART_ContentSite") as ContentPresenter;
|
||||
PART_FilterTextBox = GetTemplateChild("PART_FilterTextBox") as TextBox;
|
||||
PART_Popup = GetTemplateChild("PART_Popup") as Popup;
|
||||
if(PART_FilterTextBox != null)
|
||||
{
|
||||
PART_FilterTextBox.TextChanged += PART_FilterTextBox_TextChanged;
|
||||
}
|
||||
view = CollectionViewSource.GetDefaultView(ItemsSource);
|
||||
if(PART_Popup != null)
|
||||
{
|
||||
PART_Popup.Opened += PART_Popup_Opened;
|
||||
}
|
||||
Init();
|
||||
}
|
||||
|
||||
protected override void PrepareContainerForItemOverride(DependencyObject element, object item)
|
||||
{
|
||||
if(item is not CheckComboBoxItem)
|
||||
{
|
||||
if(element is CheckComboBoxItem checkComboBoxItem && !string.IsNullOrEmpty(DisplayMemberPath))
|
||||
{
|
||||
var binding = new Binding(DisplayMemberPath);
|
||||
checkComboBoxItem.SetBinding(CheckComboBoxItem.ContentProperty, binding);
|
||||
}
|
||||
}
|
||||
|
||||
base.PrepareContainerForItemOverride(element, item);
|
||||
}
|
||||
|
||||
protected override DependencyObject GetContainerForItemOverride() { return new CheckComboBoxItem(); }
|
||||
|
||||
protected override bool IsItemItsOwnContainerOverride(object item)
|
||||
{
|
||||
return item is CheckComboBoxItem;
|
||||
}
|
||||
#endregion
|
||||
|
||||
#region PrivateFunction
|
||||
private void Init()
|
||||
{
|
||||
popupIsFirstOpen = true;
|
||||
|
||||
if(SelectedObjList != null)
|
||||
{
|
||||
foreach(var obj in SelectedObjList)
|
||||
{
|
||||
if(string.IsNullOrWhiteSpace(DisplayMemberPath))
|
||||
{
|
||||
SelectedStrList.Add(obj.ToString());
|
||||
}
|
||||
else
|
||||
{
|
||||
SelectedStrList.Add(obj.GetPropertyValue(DisplayMemberPath).ToString());
|
||||
}
|
||||
}
|
||||
}
|
||||
SetCheckComboBoxValueAndContent();
|
||||
}
|
||||
|
||||
private void SetCheckComboBoxValueAndContent()
|
||||
{
|
||||
if(SelectedObjList == null || SelectedObjList.Count <= 0)
|
||||
SelectedStrList = [];
|
||||
|
||||
if(SelectedStrList == null)
|
||||
return;
|
||||
|
||||
Content = SelectedStrList.Count > MaxShowNumber
|
||||
? $"选中{SelectedStrList.Count}个"
|
||||
: SelectedStrList.Aggregate(string.Empty, (current, p) => $"{current}{p}, ")
|
||||
.TrimEnd(new char[] { ' ' })
|
||||
.TrimEnd(new char[] { ',' });
|
||||
|
||||
Value = SelectedStrList.Aggregate(string.Empty, (current, p) => $"{current}{p},")
|
||||
.TrimEnd(new char[] { ',' });
|
||||
}
|
||||
#endregion
|
||||
|
||||
#region Event Implement Function
|
||||
/// <summary>
|
||||
/// 每次Open回显数据不太好，先这么处理
|
||||
/// </summary>
|
||||
private void PART_Popup_Opened(object sender, EventArgs e)
|
||||
{
|
||||
if(!popupIsFirstOpen)
|
||||
return;
|
||||
|
||||
popupIsFirstOpen = false;
|
||||
|
||||
if(ItemsSource == null || SelectedObjList == null)
|
||||
return;
|
||||
|
||||
foreach(var obj in SelectedObjList)
|
||||
{
|
||||
if(ItemContainerGenerator.ContainerFromItem(obj) is CheckComboBoxItem checkComboBoxItem)
|
||||
checkComboBoxItem.IsSelected = true;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 搜索关键字
|
||||
/// </summary>
|
||||
private void PART_FilterTextBox_TextChanged(object sender, TextChangedEventArgs e)
|
||||
{
|
||||
if(PART_FilterTextBox == null || view == null)
|
||||
return;
|
||||
|
||||
view.Filter += (o) =>
|
||||
{
|
||||
var value = Convert.ToString(o.GetPropertyValue(DisplayMemberPath)).ToLower();
|
||||
return value.Contains(PART_FilterTextBox.Text);
|
||||
};
|
||||
foreach(var obj in SelectedObjList)
|
||||
{
|
||||
if(ItemContainerGenerator.ContainerFromItem(obj) is CheckComboBoxItem checkComboBoxItem)
|
||||
checkComboBoxItem.IsSelected = true;
|
||||
}
|
||||
}
|
||||
#endregion
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user