DropDownList中保存一个更大的价值 [英] DropDownList holds one more value

问题描述

我的DropDownList 有该项目的文本和值属性被设置主键条目。是的，我与显示文本属性主键和值属性查询。

我想也得到所选项目的其他财产，如姓名无需查询集结合的DropDownList 或查询数据库。

我怎么能这样做？

 ＆LT; ASP：DropDownList的ID =DDL=服务器＆GT;
    ＆LT; ASP：ListItem的文本=项目编号VALUE =项目编号＆GT;＆LT; / ASP：ListItem的＆GT; //我要拿到项目的名称
＆LT; / ASP：DropDownList的＆GT;
 

解决方案

的DropDownList ASPX标记：

 ＆LT; ASP：DropDownList的ID =ddlDropDown=服务器＆GT;
    ＆LT; ASP：ListItem的文本=项目编号VALUE =项目编号ThirdValue =ITEMNAME/＆GT;
＆LT; / ASP：DropDownList的＆GT;
 

找回价值是这样的：

 列表项项= ddlDropDown.Items.FindByValue（项目编号）;
字符串值= item.Attributes [ThirdValue];
 

I have dropdownlist which has items that text and value property of the item are set to primary key. Yes, I show primary key with text property and querying with value property.

I want also to get selected item's other property such as name without querying dataset that binds to dropdownlist or querying database.

How can I do that?

<asp:DropDownList ID="ddl" runat="server">
    <asp:ListItem Text="ItemID" Value="ItemID"></asp:ListItem> // I want get item's name
</asp:DropDownList>

解决方案

DropDownList Aspx Markup :

<asp:DropDownList ID="ddlDropDown" runat="server">
    <asp:ListItem Text="ItemID" Value="ItemID" ThirdValue="ItemName" />
</asp:DropDownList>

Retrieve value like this :

ListItem item = ddlDropDown.Items.FindByValue("ItemID");
string value = item.Attributes["ThirdValue"];

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