将Row添加到Datagrid时，C＃WPF会抛出System.InvalidOperationException

Question

我有一个WPF DataGrid，想要用代码添加数据。

XAML：

<DataGrid CanUserAddRows="True" CanUserDeleteRows="True" AutoGenerateColumns="False" Name="WareneingangEinbuchenGrid" VerticalAlignment="Top" >
                <DataGrid.Columns>
                    <DataGridTextColumn x:Name="Name" Header="Name" Binding="{Binding Name}" />
                    <DataGridTextColumn x:Name="StueckzahlName" Header="Stückzahl" Binding="{Binding Stueckzahl}" />
                    <DataGridTextColumn x:Name="Preis" Header="Preis" Binding="{Binding Preis}" />
                    <DataGridTextColumn x:Name="Barcode" Header="Barcode" Binding="{Binding Barcode}" />
                </DataGrid.Columns>
            </DataGrid>

数据类：

    public class WareneingangGridData
{
    public string Name { get; set; }

    public int Stueckzahl { get; set; }

    public double Preis { get; set; }

    public string Barcode { get; set; }
}

XAML.cs：

WareneingangEinbuchenGrid.Items.Add(new WareneingangGridData { Name = "Testname", Stueckzahl = 2, Preis = 12.3 , Barcode = "TestBarcode" });

执行XAML.CS时，应用程序抛出System.InvalidOperationException错误。

Answer 1

找到了解决方案，我编辑了XAML.cs：

Application.Current.Dispatcher.BeginInvoke(DispatcherPriority.Normal, new Action(() =>
        {
            WareneingangEinbuchenGrid.Items.Add(new WareneingangGridData { Name = "Testname", Stueckzahl = 2, Preis = 12.3, Barcode = "TestBarcode" });
        }));