添加到绑定的ListView
本文关键字:ListView 绑定 添加 | 更新日期: 2023-09-27 18:10:50
我正在尝试将一个人添加到露营者(人)列表中。我已经将ListView(GridView)
绑定到数据库,它显示了所有的名字、年龄和年级。但是现在我正在尝试添加一个新人,并将他与其他人一起添加(显示)到ListView
。非常感谢任何帮助。
这是我有: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>();
}
}
下面是我在listview中添加名字列表的地方:
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;
我在这里添加了一个新的露营者(人),我试图将他/她添加到listview:
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();
您不应该刷新数据库来添加camper:
Camper person = new Camper(age, grade, nameMe);
if TryAddToDatabase(person)
{
bindMe.Campers.Add(person);
}
如果ListView
被绑定到bindMe。它会自动刷新并显示新项目。我还建议您完全阅读WPFTutorial,这样您以后就不会做任何额外的工作了。