asp.net项目开发中用到的小技巧

时间：2015-01-29 来源：互联网作者：佚名

1 显示枚举的值：<%# (CN80s.DDPM.Model.Enum.EnumBidCardStatus)(int)Eval("PerpaidCard_Status")%>
2 为下拉框绑定枚举：
复制代码代码如下:
GetEnumList(ddlBids);
void GetEnumList(DropDownList ddl)
{
foreach (EnumBidCardType s in System.Enum.GetValues(typeof(EnumBidCardType)))
{
ddl.Items.Add(new ListItem(s.ToString(), ((int)s).ToString()));
}
}
this.ddlBids.DataSource = GetEnumList(typeof(EnumBidCardType), true);
this.ddlBids.DataTextField = "Text";
this.ddlBids.DataValueField = "Value";
this.ddlBids.DataBind();
public static List<ListItem> GetEnumList(Type enumType, bool allAllOption)
{
if (enumType.IsEnum == false)
{
return null;
}
List<ListItem> list = new List<ListItem>();
if (allAllOption == true)
{
list.Add(new ListItem("--全部--", ""));
}
Type typeDescription = typeof(DescriptionAttribute);
System.Reflection.FieldInfo[] fields = enumType.GetFields();
string strText = string.Empty;
string strValue = string.Empty;
foreach (FieldInfo field in fields)
{
if (field.IsSpecialName) continue;
strValue = field.GetRawConstantValue().ToString();
object[] arr = field.GetCustomAttributes(typeDescription, true);
if (arr.Length > 0)
{
strText = (arr[0] as DescriptionAttribute).Description;
}
else
{
strText = field.Name;
}
list.Add(new ListItem(strText, strValue));
}
return list;
}

来顶一下