MVVM转换器Int2StringConverter基础类

很多时候都是会用到int 转换为字符串的情况的转换器

可能在编辑界面需要一个下拉框来显示列表

在列表页面需要一个转换器显示为具体的字符串数据

这个时候使用,有一个Items属性的转换器,就都搞定了

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using Client.Model; using System; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Linq; using System.Text; using System.Windows.Data;   namespace Client.Common.Converter {     [ValueConversion(typeof(int), typeof(string))]     public class Int2StringConverter : NotifyPropertyChanged, IValueConverter     {         public Int2StringConverter()         {             Items = new ObservableCollection<ListItem>();             InitialItems();         }           protected virtual void InitialItems()         {           }         public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)         {             string result = string.Empty;             if (value == null)             {                 return result;             }             int sourceValue = System.Convert.ToInt32(value);             var model = Items.Where(f => f.Value == sourceValue).FirstOrDefault();             if (model != null)                 result = model.DisplayName;             return result;         }           public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)         {             int result = -1;             if (value == null)             {                 return result;             }             string sourceValue = value.ToString();             var model = Items.Where(f => f.DisplayName == sourceValue);             if (model.Count() > 0)                 result = model.First().Value.Value;             return result;         }             private ObservableCollection<ListItem> items;           public ObservableCollection<ListItem> Items         {             get { return items; }             set             {                 items = value;                 OnPropertyChanged("Items");             }         }         } }