這篇文章主要介紹介紹asp.net項目開發中枚舉的使用。包含了顯示枚舉的值和為下拉框綁定枚舉兩個功能舉例說明。
1 顯示枚舉的值:<%# (CN80s.DDPM.Model.Enum.EnumBidCardStatus)(int)Eval("PerpaidCard_Status")%>
2 為下拉框綁定枚舉:
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; }