问题列表 - 第49641页

如何使用Lambda表达式编写此linq查询

public List<Employee> GetList()
 {
     return (from c in DALContext.MST
             select new Employee(ID=c.CD, Name=c.NAME)).ToList();
 }

我试图在同一个表中插入2行.第一个将从select输入数据,第二个将使用vars作为数据.我能够插入第一行但无法插入多行.

$ partner_id用于将行相互链接.为此我在php中使用生成的32char值.无论如何将edit_partner_id设置为mysql作为插入的第一行的id,或者这是不可能的,因为必须先创建第一行才能获得最后一个id？

是否有可能还添加更新或我是否必须在单独的查询中运行此更新？

$sql = "INSERT INTO edits_customers (customer_id, creator_id, firstname, surname,
            house_no, address_1, address_2, address_3, city, county, postcode,
            country, email, home_tel, mobile_tel, work_tel, notes, edit_type,
            edit_partner_id )
        (SELECT *, 'before', '{$partner_id}' FROM customers WHERE customers.id = 123),
        ('{$var1}', '{$var2}', '', '', '', '', '', '', '', '', '', '', '', '', '', '',
            '', 'after', $partner_id)";

谢谢

我想知道如何检测我对UIButton的长按？我听说过UILongPressGestureRecognizer但我完全不确定如何使用它.

我成功地将我的plist数组和字典加载到我的表中.我想在练习的详细视图中将exerciseName值设置为UILabel.

<array>
<dict>
    <key>exercises</key>
    <array>
        <dict>
            <key>exerciseDetail</key>
            <string></string>
            <key>exerciseName</key>
            <string>Ab Crunch Machine</string>
        </dict>
        <dict>
            <key>exerciseDetail</key>
            <string></string>
            <key>exerciseName</key>
            <string>Ab Roller</string>
        </dict>
    </array>
    <key>muscleName</key>
    <string>Abdominals</string>
</dict>

练习细节现在是空白的,但最终会在相同练习的详细视图中加载UILabel或UITextView.

我猜我需要做一些事情

label.text =[[self.exerciseArray objectAtIndex:indexPath.row]objectForKey:@"exercises"];

编辑:

对于我的exerciseViewController didSelectIndexAtRow我有:

NSUserDefaults *def = [NSUserDefaults standardUserDefaults];
    [def setObject:exerciseArray forKey:@"exercises"];
    [def setValue:[NSString stringWithFormat:@"%d",indexPath.row] forKey:@"exercises"];

对于detailViewController的ViewDidLoad,我有:viewDidLoad for exerciseDetailView

 self.navigationItem.title = @"Exercise Detail"; 

NSMutableArray *exerciseDetailArray = [[[NSUserDefaults alloc] objectForKey:@"exercises"] mutableCopy];

int indexValue = [[[NSUserDefaults alloc] valueForKey:@"exercises"] intValue];

name.text =[[exerciseDetailArray objectAtIndex:indexValue] objectForKey:@"exerciseName"];

控制台输出:

2011-03-19 22:52:08.279 Curl[32300:207] exercisedetalarray: (
    {
    exerciseDetail = "";
    exerciseName …

可能重复:
是否有一个JavaScript函数可以填充字符串以达到确定的长度？

如何在JavaScript中将转换'1'转换为'0001'而不使用任何第三方库.我使用spritf在php中完成了这个:$time = sprintf('%04.0f',$time_arr[$i]);

我为2名玩家制作了一个Tic-Tac-Toe游戏.现在,我想给游戏人工智能.

这样的游戏可以在1个玩家和计算机之间播放.
请帮助我该如何开始？

我正在寻找一种方法,使--insecure选项成为任何hg\ TortoiseHg命令的默认选项.

请不要写这是一个不好的做法 - 我知道可能的风险并认为它们是完全可以接受的.

Xcode4放弃了PPC支持,所以当我尝试构建PIL时,它会引发仇恨:

Bens-MacBook-Air:Imaging-1.1.7 bkeating$ python setup.py build
running buildrunning build_pyrunning build_ext
--- using frameworks at /System/Library/Frameworks
building '_imaging' extension
/usr/bin/gcc-4.0 -fno-strict-aliasing -fno-common -dynamic -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes -DENABLE_DTRACE -arch i386 -arch ppc -arch x86_64 -pipe -DHAVE_LIBJPEG -DHAVE_LIBZ -I/System/Library/Frameworks/Tcl.framework/Headers -I/System/Library/Frameworks/Tk.framework/Headers -I/usr/local/include/freetype2 -IlibImaging -I/System/Library/Frameworks/Python.framework/Versions/2.6/include -I/usr/local/include -I/usr/include -I/System/Library/Frameworks/Python.framework/Versions/2.6/include/python2.6 -c decode.c -o build/temp.macosx-10.6-universal-2.6/decode.o
/usr/libexec/gcc/powerpc-apple-darwin10/4.2.1/as: assembler (/usr/bin/../libexec/gcc/darwin/ppc/as or /usr/bin/../local/libexec/gcc/darwin/ppc/as) for architecture ppc not installed
Installed assemblers are:
/usr/bin/../libexec/gcc/darwin/x86_64/as for architecture x86_64
/usr/bin/../libexec/gcc/darwin/i386/as for architecture i386
decode.c:688: fatal error: error writing to -: Broken pipe …

在不暴露外键的情况下执行一对多关系的删除时,EF会删除父记录并尝试使子记录上的外键为空.这当然会导致错误,因为外键不可为空.将外键添加到子类会覆盖此行为,但我宁愿不公开它.

例如,给定以下两个类,我不希望将JobId作为Project类的属性.

public class Job : ModelBase
{
    [Required]
    [StringLength(100)]
    public string Company { get; set; }

    [Required]
    [StringLength(100)]
    public string JobTitle { get; set; }

    public ICollection<Project> Projects { get; set; }
}

public class Project : ModelBase
{
    [Required]
    [StringLength(100)]
    public string Name { get; set; }

    [Required]
    public string Summary { get; set; }

    public int JobId { get; set; }
}

有没有办法在EF Code First中启用级联删除而不在关系的多方面暴露外键？

想象一下,我运行这个:

     $.ajax({
        type: 'POST',
        url: '/ajax/watch.php',
        data: {'watch':'aukcia', 'id':aukciaID},
        complete: function(responseText){
           alert(responseText);
        }
     });

在/ajax/watch.php里面,假设我有这个:

echo 'this is what I want';

并且警报(responseText)返回:

[object Object]

而不是我需要的文本字符串.有什么帮助吗？