需求描述
1.按钮的状态需要根据多个数据源的内容作出不同的组合判断
2.每个数据源的判断规则可定制
注:以下功能感觉只是简单粗暴的实现,如果您了解更优雅的解决方案,烦请告诉我下,感谢先!
按钮XAML
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
string[] paramlist = ((string)parameter).Split('|');
if (paramlist == null || paramlist.Length <= 0)
{
throw new ArgumentNullException("parameter");
}
int length = paramlist.Length;
IList
for (int i = 0; i
switch (paramlist[i].ToLowerInvariant())
{
case "checknameexisted":
boollist.Add(ValidationRuleHelper.Validate
break;
case "directoryandfileexist":
boollist.Add(ValidationRuleHelper.Validate
break;
case "greaterthanzerointeger":
boollist.Add(ValidationRuleHelper.Validate
break;
case "numericnull":
boollist.Add(ValidationRuleHelper.Validate
break;
case "stringlength":
boollist.Add(ValidationRuleHelper.Validate
break;
case "stringnullorempty":
boollist.Add(ValidationRuleHelper.Validate
break;
case "ipaddress":
boollist.Add(ValidationRuleHelper.Validate
break;
case "objectnull":
default:
boollist.Add(ValidationRuleHelper.Validate
break;
}
}
bool result = boollist[0];
for (int i = 1; i
result = result & boollist[i];
}
return result;
}
public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
{
return null;
}
#endregion
}