是否可以将列表框数据源设置为List< Tuple< string，string，int>仅Item1? [英] Is it possible to set listbox datasource to List<Tuple<string, string, int>> Item1 only?

问题描述

我有

public static class GlobalVariables
{
    public static List<Tuple<string, string, int>> PopFile;
}

我正在尝试将PopFile用作列表框的数据源

and I'm trying to use PopFile as a datasource to listbox

listBox1.DataSource = GlobalVariables.PopFile;

问题是，它显然将([string]，[string]，[int])添加到了列表框，但是我只想添加元组的第一项.有可能吗?

The problem is that it obviously adds ([string], [string], [int]) to the listbox but I want to add only the first items of tuples. Is that possible?

我可以使用

foreach (Tuple<string, string, int> i in GlobalVariables.PopFile)
{
    listBox1.Items.Add(i.Item1);
}

但是我更喜欢.DataSource.

but I'd prefer .DataSource.

推荐答案

listBox1.DataSource = GlobalVariables.PopFile;
listBox1.DisplayMember = "Item1";
listBox1.ValueMember = "Item3";   // optional

https://msdn.microsoft.com /en-us/library/system.windows.forms.listcontrol.datasource

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