小编biz*_*zon的帖子

我正在尝试在我的应用程序中打印文档.但在不同的打印机上我得到不同的结果.这是我的代码:

PaperSize paperSize = new PaperSize("My Envelope", 440, 630);
paperSize.RawKind = (int)PaperKind.Custom;

PrintDocument pd = new PrintDocument();
pd.PrintPage += (sender, args) => Console.Out.WriteLine("Printable Area for printer {0} = {1}", args.PageSettings.PrinterSettings.PrinterName, args.PageSettings.PrintableArea);

pd.DefaultPageSettings.PaperSize = paperSize;
pd.DefaultPageSettings.Landscape = true;
pd.DefaultPageSettings.Margins   = new Margins(60, 40, 20, 20);

Console.Out.WriteLine("My paper size: " + pd.DefaultPageSettings.PaperSize);

PrintDialog printDialog = new PrintDialog(); // to choose printer
printDialog.Document = pd;

if (printDialog.ShowDialog(this) == DialogResult.OK)
{
    // pd.DefaultPageSettings.PaperSize = paperSize; // uncomment to override size from dialog

    Console.Out.WriteLine("Paper size …

我有问题是杀了我.以下是简单的例子

<Grid Name="_grid">
    <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="36,33,0,0" Name="button" VerticalAlignment="Top" Width="75" />
    <Button Content="Enlarge through animation" Height="23" Margin="172,33,24,0" Name="_animateButton" VerticalAlignment="Top" Click="_animateButton_Click" />
    <Button Content="Enlarge through simple heigh changing" Height="23"  Margin="172,62,24,0" Name="_resizeButton" VerticalAlignment="Top" Click="_resizeButton_Click" />
</Grid>

在代码背后

private void _resizeButton_Click(object sender, RoutedEventArgs e)
{
    button.Height += 10;
}

private void _animateButton_Click(object sender, RoutedEventArgs e)
{
    Storyboard storyboard = new Storyboard();

    DoubleAnimation animation = new DoubleAnimation(button.Height + 10, new Duration(new TimeSpan(0, 0, 0, 1)));
    storyboard.Children.Add(animation);

    Storyboard.SetTargetName(animation, button.Name);
    Storyboard.SetTargetProperty(animation, new PropertyPath(HeightProperty));

    storyboard.Begin(_grid);
} …

我有两个由代码生成的简单类.

public class Company
{
    public int Id { get; set; }
    public string Name { get; set; }
    public virtual Address Address { get; set; }
}

public class Address
{
    public int Id { get; set; }
    public string Country { get; set; }
    ...
}

在数据库中保存公司后,我有公司(Id = 1 | name ="blah"| AddressId = 1)及其地址(Id = 1,Country ="Poland").当我尝试从我的DbContext加载时:

Company company = context.Companies.Find(id);

我得到公司与null地址属性.我究竟做错了什么？

(我正在使用CTP5.)

我正在尝试基于msdn示例构建组合框的模板,但我有奇怪的错误.更确切地说,如果我在正常组合框中写入长文本,文本将向左移动,我们始终看到插入符号.但是在msdn例子中,当我写长文本时,插入符号正在移动到组合之外.以下是它的外观:

当我选择文本时,它看起来像这样:

我已经使用了Framework 3.5和Framework 4组合框帮助中的示例, 并且在复制和粘贴之后,我一直在遇到相同的情况.谢谢你的帮助.

编辑:

    <Window x:Class="ComboBoxTest.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Framework 3.5" Height="350" Width="525">

    <Window.Resources>
        <ControlTemplate x:Key="ComboBoxToggleButton" TargetType="ToggleButton">
            <Grid>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition />
                    <ColumnDefinition Width="20" />
                </Grid.ColumnDefinitions>
                <Border x:Name="Border" Grid.ColumnSpan="2" CornerRadius="2" Background="White"
                        BorderBrush="Black" BorderThickness="1" />
                <Border Grid.Column="0" CornerRadius="2,0,0,2" Margin="1" Background="#FFF"
                        BorderBrush="Black" BorderThickness="0,0,1,0" />
                <Path x:Name="Arrow" Grid.Column="1" Fill="#444" HorizontalAlignment="Center"
                      VerticalAlignment="Center" Data="M 0 0 L 4 4 L 8 0 Z" />
            </Grid>
            <ControlTemplate.Triggers>
                <Trigger Property="ToggleButton.IsMouseOver" Value="true">
                    <Setter TargetName="Border" Property="Background" Value="Black" />
                </Trigger>
                <Trigger Property="ToggleButton.IsChecked" Value="true">
                    <Setter TargetName="Border" …

我有两节课:

public class Company
{
    public int Id { get; set; }
    public string Name { get; set; }

    public virtual ICollection<User> Users { get; set; }
}

public class User
{
    public int Id { get; set; }
    public string Email { get; set; }

    public virtual ICollection<Company> Companies { get; set; }
}

在我的MVC应用程序控制器中从post发布新公司.我想在这样的事情中添加当前用户到创建的公司.

User user = GetCurrentLoggedUser();
//company.Users = new ICollection<User>(); // Users is null :/
company.Users.Add(user);  // NullReferenceException
companyRepository.InsertOrUpdate(company);
companyRepository.Save();

它应该如何正常工作？我还不知道但是在将用户添加到集合之后,我预计将其保存到数据库会出现问题.任何有关它应该是什么样子的提示都将不胜感激.

我正在为我的ASP MVC应用程序进行本地化,我想为每个属性设置相同的设置.

例如:

    [Required(ErrorMessageResourceType = typeof(Resources), ErrorMessageResourceName = "RequiredAttribute_ValidationError")]
    [Display(Name = "Has?o")]
    public string Password { get; set; }

有没有办法自动完成？

我很难理解如何在F#中定义类,其中我有没有声明值的属性.等同于c#代码的东西:

class Entity 
{
      public string Name { get; set; }
      public List<string> Favorites { get; set;}
}

我只能声明类型定义的类型

type Entity = 
    member val Name = "" with get, set

当我指定null时,Name的类型将为null.