Question

我正在开发Windows 8商店应用程序（c＃）。我有一个Combobox（cboTeam1）从存储库中获取项目。

private static List<TeamItem> JPLItems = new List<TeamItem>();

public static List<TeamItem> getJPLItems()
    {
        if (JPLItems.Count == 0)
        {
            JPLItems.Add(new TeamItem() { Id = 1, Description = "Anderlecht", Image = "Jpl/Anderlecht.png", ItemType = ItemType.JPL });
            JPLItems.Add(new TeamItem() { Id = 1, Description = "Beerschot", Image = "Jpl/Beerschot.png", ItemType = ItemType.JPL });
            JPLItems.Add(new TeamItem() { Id = 1, Description = "Cercle Brugge", Image = "Jpl/Cercle.png", ItemType = ItemType.JPL });
            JPLItems.Add(new TeamItem() { Id = 1, Description = "Charleroi", Image = "Jpl/Charleroi.png", ItemType = ItemType.JPL });
        }
        return JPLItems;
    }

我在cboTeam1的ItemsSource中加载项目：

cboTeam1.ItemsSource = ItemRepository.getJPLItems();

当cboTeam1选择改变时，我这样做：

    private void cboTeam1_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        Ploeg1.Text = cboTeam1.SelectedValue.ToString();               
    }

这导致： SportsBetting.Model.TeamItem

任何人都可以帮助我在我的文本块（Ploeg1.Text）中获取组合框选择值吗？

Answer 1

你几乎已经为自己回答了这个问题。

private void cboTeam1_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
        // cast the selected item to the correct type.
    var selected = cboTeam.SelectedValue as TeamItem;
        //then access the appropriate property on the object, in this case "Description"
        // note that checking for null would be a good idea, too.
    Ploeg1.Text = selected.Description;               
}

另一个选项是覆盖TeamItem类中的ToString（）以返回Description。在这种情况下，您的原始代码应该可以正常工作。

public override string ToString()
{
    return this._description;  // assumes you have a backing store of this name
}

c＃windows 8选择了comboboxitem

1 个答案: