Question

我有一个wpf MainWindow.xaml。 MainWindow包含一个导航页面Type.xaml。导航页面有dataGrid和弹出窗口AddType.xaml。 AddType窗口将数据添加到数据库。 “类型”页面显示数据网格中的数据。我希望在关闭弹出窗口后刷新MainWindow（其中包含带有dataGrid的Type页面）。

<Grid>
    <StackPanel>
        <Menu Name="menu1" >
            <MenuItem Header="Expenses" x:Name="typeExpense" Click="typeExpense_Click"/>            
        </Menu>
       </StackPanel>
    <Frame Name="Main" NavigationUIVisibility="Hidden" Margin="0,35,0,0">            
    </Frame>
</Grid>

public partial class MainWindow : Window
{        
    public MainWindow()
    {
        InitializeComponent();
    }
    private void typeExpense_Click(object sender, RoutedEventArgs e)
    {
        Type type = new Type();
        Main.NavigationService.Navigate(type);            
    }
}
<Grid>
    <Button x:Name="btnAdd" Content="Dobavit" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Margin="50,45,0,0" Click="btnAddWindow_Click"/>
    <DataGrid x:Name="dataGrid"  AutoGenerateColumns="False" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="10,100,10,10">
        <DataGrid.Columns>
            <DataGridTextColumn Header="Naimenovaniya" Binding="{Binding Path=typename}"  Width="300"/>             
        </DataGrid.Columns>
    </DataGrid>
</Grid>
public partial class Type : Page
{
    string connection = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString;
    public Type()
    {
        InitializeComponent();
        DataGridBind();
    }
    protected void DataGridBind()
    {
        SqlConnection con = new SqlConnection(connection);
        con.Open();
        SqlCommand cmd = new SqlCommand("SELECT * from type", con);
        SqlDataAdapter da = new SqlDataAdapter(cmd);
        DataTable dt = new DataTable();
        da.Fill(dt);
        dataGrid.ItemsSource = dt.DefaultView;
    }

    private void btnAddWindow_Click(object sender, RoutedEventArgs e)
    {
        AddType addtype = new AddType();
        addtype.Show();
    }
}
<Grid>
    <Label x:Name="label" Content="Naimenovaniya" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="35,0,0,0"/>
    <TextBox x:Name="txtType" HorizontalAlignment="Left" Height="23" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="364" Margin="45,26,0,0"/>
    <Button x:Name="btnOK" Content="OK" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Margin="85,77,0,0" Click="btnOK_Click"/>
    <Button x:Name="btnCancel" Content="Otmena" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Margin="219,77,0,0" Click="btnCancel_Click"/>

</Grid>
public partial class AddType : Window
{
    string connection = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString;
    public AddType()
    {
        InitializeComponent();
    }

    private void btnOK_Click(object sender, RoutedEventArgs e)
    {
        SqlConnection con = new SqlConnection(connection);
        con.Open();
        SqlCommand cmd = new SqlCommand("INSERT INTO type (typename) VALUES ('"+txtType.Text+"')", con);
        cmd.ExecuteNonQuery();
        con.Close();
        Close();
    }

    private void btnCancel_Click(object sender, RoutedEventArgs e)
    {
        Close();
    }

}

Answer 1

由于您要在类型表中插入新记录，因此需要再次查询数据库。您可以通过处理窗口的private void initRealm() { Realm.init(this); RealmConfiguration config = new RealmConfiguration.Builder() .name("books.realm") .schemaVersion(1) .deleteRealmIfMigrationNeeded() .build(); Realm.setDefaultConfiguration(config); }事件来执行此操作：

Close

关闭弹出窗口窗口后刷新主窗口数据网格

1 个答案: