如何设置多个在ListBox中选择的项目? [英] How to set multiple items as selected in ListBox?

问题描述

我有一个 ListBox ，具有多个选择模式.在后面的代码中，我要设置一些选定的值.这些值出现在名为名称" 的 ListItems [] 中.

I have one ListBox with selection mode of multiple. In code behind, I want to set some values as selected. These values are present in a ListItems[] named 'Names'.

HTML代码:

<asp:ListBox ID="lbto" class="chosen" runat="server" Width="450px" 
 Height="20px" SelectionMode="Multiple">
    <asp:ListItem>Mandy</asp:ListItem>
    <asp:ListItem>Amit</asp:ListItem>
    <asp:ListItem>sundar</asp:ListItem>
    <asp:ListItem>ragu</asp:ListItem>
    <asp:ListItem>raju</asp:ListItem>
</asp:ListBox>

ListItem []名称包含'ragu'和'raju'.现在，在页面加载时，列表框应包含'ragu'和'raju'作为选定值.

ListItem[] Names contains 'ragu' and 'raju'. Now, when the page loads, the ListBox should contain 'ragu' and 'raju' as selected values.

推荐答案

如何设置 Selected -

What about setting the Selected-property of the ListItem?

var names = new List<string>(new string[] { "ragu", "raju" });

foreach (var item in lbto.Items)
{
    if (names.Contains(item.Text))
        item.Selected = true;
}

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