在Winforms中按值选择ComboBox [英] Select ComboBox by value in winforms

问题描述

如何在WinForms中按值选择组合框？我正在这样设置组合框：

How to select combo box by value in WinForms? I am setting combobox like that:

ComboboxItem item = new ComboboxItem();
                item.Text = "Test";
                item.Value = 1;

cmbComboBox.Items.Add(item);

internal class ComboboxItem
{
    public string Text { get; set; }
    public object Value { get; set; }

    public override string ToString()
    {
        return Text;
    }
}

我需要选择Value = 1

I need to select where Value = 1

推荐答案

因为 ObjectCollection 仅实现了 IEnumerable< T> c $ c> IEnumerable 您不能使用LINQ标准查询运算符。但是，只需使用 Cast< 作弊，以获得LINQ友好的可查询集合：

Because ObjectCollection does not implement the generic IEnumerable<T> only IEnumerable you can't use LINQ standard query operators. However, just cheat a little bit by using Cast<T> to obtain a LINQ friendly queryable collection:

var result = comboBox1.Items.Cast< ComboBoxItem>（）。Where（i =>（int.Parse（i.Value.ToString（）））== 1）;

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