为什么 WPF 4.0 中的 DataGrid 不显示数据？
所以我得到了 ObservableCollection 的 tmplist，其中我有一些元素。
我将它连接到 WPF 4.0 中 DataGrid 的 ItemsSource，但它没有显示任何内容。不添加任何列。如果我添加断点，我可以看到“ItemsSource 计数等于 tmplist 元素的数量，但列计数等于 0。为什么会这样？这是一些代码：
private ObservableCollection<Products> tmplist = new ObservableCollection<Products>();
public Products_view()
{
InitializeComponent();
this.Loaded += new RoutedEventHandler(Products_view_Loaded);
}
void Produkty_widok_Loaded(object sender, RoutedEventArgs e)
{
grid.ItemsSource = tmplist;
}
和 xaml：
<DataGrid Name="grid" CurrentCellChanged="grid_CurrentCellChanged" CellEditEnding="grid_CellEditEnding" RowEditEnding="grid_RowEditEnding" AlternatingRowBackground="#FFA0D1EA" AlternationCount="1" Background="#FF64A0BE" RowBackground="White" />
So i Got a tmplist of ObservableCollection in which i got few elements.
I connect it to the ItemsSource of DataGrid in WPF 4.0 and it doesn't show anything. Doesn't add any colums. If I add breakpoint I can see that the "ItemsSource count equals quantity of tmplist elements, but the Columns count equals 0. Why is that? Here is some code:
private ObservableCollection<Products> tmplist = new ObservableCollection<Products>();
public Products_view()
{
InitializeComponent();
this.Loaded += new RoutedEventHandler(Products_view_Loaded);
}
void Produkty_widok_Loaded(object sender, RoutedEventArgs e)
{
grid.ItemsSource = tmplist;
}
and xaml:
<DataGrid Name="grid" CurrentCellChanged="grid_CurrentCellChanged" CellEditEnding="grid_CellEditEnding" RowEditEnding="grid_RowEditEnding" AlternatingRowBackground="#FFA0D1EA" AlternationCount="1" Background="#FF64A0BE" RowBackground="White" />
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tmplist 必须填充项目。
尝试在构造函数中添加一个项目以进行测试。
tmplist must be filled with items.
Try adding an item to it in constructor for testing purposes.
检查数据网格的 AutoGenerateColumns 属性是否设置为 true。
Check that the AutoGenerateColumns property of your datagrid is set to true.