Converters
***bool转visible枚举
public class VisibilityConverter : IValueConverter
{
object IValueConverter.Convert(object value, Type targetType, object parameter, string language)
{
if ((bool)value)
{
//return "0xEA8C"; &#x;
return Visibility.Visible;
}
else
{
return Visibility.Collapsed;
}
}
object IValueConverter.ConvertBack(object value, Type targetType, object parameter, string language)
{
var s = (Visibility)value;
bool result = false;
switch (s)
{
case Visibility.Visible:
result=true;
break;
case Visibility.Collapsed:
result = false;
break;
default:
break;
}
return result;
}
}
*** 0,1整数转换bool
public class Int2BoolConverter:IValueConverter
{
public object Convert(object value, Type targetType, object parameter, string language)
{
//return true;
var dv = (int)value;
return (dv==0) ? false : true;
}
public object ConvertBack(object value, Type targetType, object parameter, string language)
{
if ((bool)value)
{
return 1;
}
else
{
return 0;
}
}
}
***图片文件转imagebrush
public class File2ImageBrushConverter:IValueConverter
{
public object Convert(object value, Type targetType, object parameter, string language)
{
var SkinImageBrush = new ImageBrush();
StorageFile file = value as StorageFile;
using (IRandomAccessStream ir = file.OpenAsync(FileAccessMode.Read).GetResults())
{
BitmapImage bi = new BitmapImage();
bi.SetSourceAsync(ir).GetResults();
SkinImageBrush.ImageSource = bi;
return SkinImageBrush;
}
}
public object ConvertBack(object value, Type targetType, object parameter, string language)
{
throw new NotImplementedException();
}
}
***DateTime转字符转
public class DateTimeConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, string language)
{
var time = (DateTime)value;
return time.ToString("yyyy年MM月dd日");
}
public object ConvertBack(object value, Type targetType, object parameter, string language)
{
return null;
}
}
*** bool/主题明暗 转换
public class AppThemeConverter : IValueConverter
{
object IValueConverter.Convert(object value, Type targetType, object parameter, string language)
{
if ((bool)value)
{
return ApplicationTheme.Dark;
}
else
{
return ApplicationTheme.Light;
}
}
object IValueConverter.ConvertBack(object value, Type targetType, object parameter, string language)
{
bool result = false;
switch (value)
{
case ApplicationTheme.Dark:
result = true;
break;
case ApplicationTheme.Light:
result = false;
break;
}
return result;
}
}
public class ElementThemeConverter : IValueConverter
{
object IValueConverter.Convert(object value, Type targetType, object parameter, string language)
{
if ((bool)value)
{
return ElementTheme.Dark;
}
else
{
return ElementTheme.Light;
}
}
object IValueConverter.ConvertBack(object value, Type targetType, object parameter, string language)
{
bool result = false;
switch (value)
{
case ElementTheme.Dark:
result = true;
break;
case ElementTheme.Light:
result = false;
break;
}
return result;
}
}
***颜色Color/画刷Brush
public class ColorBrushConverter : IValueConverter
{
object IValueConverter.Convert(object value, Type targetType, object parameter, string language)
{
return new SolidColorBrush((Windows.UI.Color)value);
}
object IValueConverter.ConvertBack(object value, Type targetType, object parameter, string language)
{
SolidColorBrush scb = value as SolidColorBrush;
return scb.Color;
}
}
***
