添加到绑定的ListView

时间:2011-10-11 02:19:30

标签: c# wpf listview data-binding observablecollection

我正在尝试将一个人添加到露营者(人)列表中。我已将ListView(GridView)绑定到数据库,它显示所有名称,年龄和成绩。但现在我正在尝试添加一个新人并将其与其他人一起添加(显示)到ListView。任何帮助是极大的赞赏。

以下是我的内容:ObservableCollection

class BindingCamper
{  // This class assist in binding campers from listview to the textboxes on the camperspage
    public ObservableCollection<Camper> Campers { get; private set; }

    public BindingCamper()
    {
        Campers = new ObservableCollection<Camper>();

    } 
}

这是我在列表视图中添加名称列表的地方:

       MainWindow _parentForm;

    public ObservableCollection<Camper> Campers { get; private set; }

    public CampersPage(MainWindow parent)
    {
        _parentForm = parent;
        InitializeComponent();


        var bindMe = new BindingCamper();

        for (int i = 0; i < _parentForm.allCampers.Count; i++)
            bindMe.Campers.Add(new Camper { Name = "" + _parentForm.allCampers[i].getName(), Ages = _parentForm.allCampers[i].getAge(), SchoolGrade = _parentForm.allCampers[i].getGrade() });
        DataContext = bindMe;

这是我添加新露营者(人)的地方,我正在尝试将他/她添加到列表视图中:

            String nameMe;
        nameMe = txtNewFirstName.Text ;
        int age;
        int grade;
        if (nameMe != "" && IsNumber(txtNewGrade.Text) && IsNumber(txtNewAge.Text))
        { 
            age = Convert.ToInt16(txtNewAge.Text);
            grade = Convert.ToInt16(txtNewGrade.Text);
            // Create New Camper


            Camper person = new Camper(age, grade, nameMe);

            _parentForm.allCampers.Add(person);
            //_parentForm.camperPage.listViewCampers.Items.Refresh();
            var bind = new BindingCamper();
          //  bind.Campers.Add(new Camper { Name = person.getName(), Ages = person.getAge(), SchoolGrade = person.getGrade() });
          //  _parentForm.camperPage.Campers.Add(new Camper { Name =  person.getName(), Ages = person.getAge(), SchoolGrade = person.getGrade() });

            Close();

1 个答案:

答案 0 :(得分:0)

您不应刷新数据库以添加露营车:

Camper person = new Camper(age, grade, nameMe);
if TryAddToDatabase(person)
{
    bindMe.Campers.Add(person);
}

如果ListView绑定到bindMe.Campers,它将自动刷新并显示新项目。我还建议您完全阅读WPFTutorial,以便将来不再做任何额外的工作。