1.枚举
<select id="accountType" name="accountType">
<option value="">---所有---</option>
@foreach (var item in Lib4Net.Comm.EnumHelper.GeMembertValues<PSAccountType>())
{
<option value="@((int)item)">@item.GetDescription()</option>
}
</select>
2.获取枚举描述
/// <summary>
/// 获取对象描述信息
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static string GetDescription(this object input)
{
if (input == null)
return string.Empty;
Type enumType = input.GetType();
if (!enumType.IsEnum)
{
return string.Empty;
}
var name = Enum.GetName(enumType, Convert.ToInt32(input));
if (name == null)
return string.Empty;
object[] objs = enumType.GetField(name).GetCustomAttributes(typeof(DescriptionAttribute), false);
if (objs == null || objs.Length == 0)
{
return string.Empty;
}
else
{
DescriptionAttribute attr = objs[0] as DescriptionAttribute;
return attr.Description;
}
}
3.字符串显示或处理
/// <summary>
/// 如果数据为空就显示为-
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static string ToCustomerString(this object input)
{
if (input == null)
return "---";
else
return input.ToString();
}
/// <summary>
/// 完成操作：
/// 1.Trim，去掉前后空格
/// 2.将空字符串设置成为null
/// </summary>
/// <param name="input">对象</param>
public static void CustomizeTrim(this object input)
{
if (input != null)
{
Type type = input.GetType();
PropertyInfo[] infos = type.GetProperties();
object val = null;
string strval = null;
foreach (PropertyInfo info in infos)
{
val = info.GetValue(input, null);
if (val != null)
{
if (val.GetType().FullName == typeof(string).FullName)
{
strval = val as string;
if (string.IsNullOrWhiteSpace(strval))
{
strval = null;
}
else
{
strval = strval.Trim();
}
if (info.CanWrite)
{
info.SetValue(input, strval, null);
}
}
}
}
}
}