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更新整理

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GG Z
2025-04-24 20:56:44 +08:00
parent 155cef46f8
commit 5b6d67b571
813 changed files with 14437 additions and 12362 deletions
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43
ShrlAlgoToolkit.Mvvm/Converters/ComparisonConverter.cs Normal file
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using System.Globalization;
using System.Windows.Data;
namespace ShrlAlgoToolkit.Mvvm.Converters;
public class ComparisonConverter : IValueConverter
{
/// <summary>
/// Model属性->Control属性
/// </summary>
/// <param name="value"></param>
/// <param name="targetType"></param>
/// <param name="parameter"></param>
/// <param name="culture"></param>
/// <returns></returns>
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
//value:ViewModel属性，枚举/数字/字符串
//parameter：ConverterParameter，枚举/数字/字符串
//return (string)parameter == (string)value;
//绑定的枚举属性与控件转换参数一致则选中
return value.Equals(parameter);
//return (string)parameter == (string)value;
}
/// <summary>
/// 控件选中，将Converter参数传给模型属性
/// </summary>
/// <param name="value"></param>
/// <param name="targetType"></param>
/// <param name="parameter"></param>
/// <param name="culture"></param>
/// <returns></returns>
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
//value:bool 比如RadioButton的check属性
//parameter:ConverterParameter枚举
//一样才传递给ViewModel
//选中则返回枚举类
return value is true ? parameter : Binding.DoNothing;
//return (bool)value ? parameter : Binding.DoNothing;
}
}

40
ShrlAlgoToolkit.Mvvm/Converters/EnumDescriptionTypeConverter.cs Normal file
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using System.ComponentModel;
using System.Globalization;
using System.Reflection;
namespace ShrlAlgoToolkit.Mvvm.Converters;
/// <summary>
/// 枚举类上加特性[TypeConverter(typeof(EnumDescriptionTypeConverter))]
/// </summary>
//TODO 待测试
public class EnumDescriptionTypeConverter : EnumConverter
{
public EnumDescriptionTypeConverter(Type type) : base(type)
{
}
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
if (destinationType == typeof(string))
{
if (null != value)
{
FieldInfo fi = value.GetType().GetField(value.ToString());
if (null != fi)
{
var attributes =
(DescriptionAttribute[])fi.GetCustomAttributes(typeof(DescriptionAttribute), false);
return ((attributes.Length > 0) && (!string.IsNullOrEmpty(attributes[0].Description)))
? attributes[0].Description
: value.ToString();
}
}
return string.Empty;
}
return base.ConvertTo(context, culture, value, destinationType);
}
}

93
ShrlAlgoToolkit.Mvvm/Converters/EnumSourceAndConverter.cs Normal file
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using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Globalization;
using System.Reflection;
using System.Windows.Data;
namespace ShrlAlgoToolkit.Mvvm.Converters;
/// <summary>
/// Description（描述特性）的枚举转换同时也是枚举源的集合
/// </summary>
public class EnumItemsSourceAndConverter : Collection<string>, IValueConverter
{
private IDictionary<object, object> displayNameToValueMap;
private Type type;
private IDictionary<object, object> valueToDisplayNameMap;
public Type Type
{
get => type;
set
{
if (!value.IsEnum)
{
throw new ArgumentException("不是枚举类型", $"{value}");
}
type = value;
Initialize();
}
}
/// <summary>
/// 类属性到控件属性，源到目标
/// </summary>
/// <param name="value"></param>
/// <param name="targetType"></param>
/// <param name="parameter"></param>
/// <param name="culture"></param>
/// <returns></returns>
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
//if (value != null)
//{
// int n = (int)value;
// if (n == 0 || n == -1)
// {
// return null;
// }
//}
return value == null
? null
: valueToDisplayNameMap.TryGetValue(value, out var value1)
? value1
: null;
}
/// <summary>
/// 目标到源
/// </summary>
/// <param name="value"></param>
/// <param name="targetType"></param>
/// <param name="parameter"></param>
/// <param name="culture"></param>
/// <returns></returns>
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
return value == null
? null
: displayNameToValueMap.TryGetValue(value, out var value1)
? value1
: null;
}
private static object GetDescription(FieldInfo fieldInfo)
{
var descriptionAttribute = (DescriptionAttribute)Attribute.GetCustomAttribute(fieldInfo, typeof(DescriptionAttribute));
return descriptionAttribute != null ? descriptionAttribute.Description : fieldInfo.Name;
}
private void Initialize()
{
valueToDisplayNameMap = type.GetFields(BindingFlags.Static | BindingFlags.Public).ToDictionary(fi => fi.GetValue(null), GetDescription);
displayNameToValueMap = valueToDisplayNameMap.ToDictionary(kvp => kvp.Value, kvp => kvp.Key);
Clear();
//当前converter的集合添加元素
foreach (string name in displayNameToValueMap.Keys)
{
Add(name);
}
}
}

17
ShrlAlgoToolkit.Mvvm/Converters/InvertBooleanConverter.cs Normal file
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using System.Globalization;
using System.Windows.Data;
namespace ShrlAlgoToolkit.Mvvm.Converters;
public class InvertBooleanConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
return value is bool b ? !b : value;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
return value is bool b ? !b : value;
}
}

22
ShrlAlgoToolkit.Mvvm/Converters/SearchValueConverter.cs Normal file
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using System.Windows.Data;
namespace ShrlAlgoToolkit.Mvvm.Converters;
public class SearchValueConverter : IMultiValueConverter
{
public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
var cellText = values[0] == null ? string.Empty : values[0].ToString();
var searchText = values[1] as string;
if (!string.IsNullOrEmpty(searchText) && !string.IsNullOrEmpty(cellText))
{
return cellText.ToLower().Contains(searchText.ToLower());
}
return false;
}
public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)
{
return null;
}
}