小编use*_*331的帖子

我想使用get_where和order_by这样...

$query = $this->db->get_where($this->tbl_name, $where)->order_by('birth_date', 'ASC');

但得到了这个错误......

Fatal error: Call to undefined method CI_DB_mysql_result::order_by() in C:\xampp\htdocs\OAWA\application\models\Member_model.php on line 82

我究竟做错了什么？

是否可以将文本环绕在圣诞树上并使文本触及边缘？

我左边有一个文本块,右边有一个文本块,我想把树放在中间,左右边有文字环绕,这可能吗？

HTML:

<div class="main-content">
    <div class="left-text">
        <p class="left">Sed pretium dapibus lorem. Morbi sed diam eu dolor fermentum pharetra. Aliquam quis erat maximus ligula tincidunt tincidunt vel sed dolor. Curabitur sed aliquet mi. Morbi quis ipsum non ante consectetur varius. Fusce dapibus posuere metus, nec interdum ante. Curabitur magna odio, interdum at est nec, vulputate faucibus quam. Aliquam est nisi, ultricies in mauris quis, venenatis tristique urna. Integer tristique, orci lobortis egestas feugiat, enim massa hendrerit turpis, quis dictum purus …

这是一个简单的问题,我似乎无法想到解决方案.

我在我的存储过程中定义了这个:

@communityDesc varchar(255) = NULL

@communityDesc是"aaa,bbb,ccc"

在我的实际查询中,我正在尝试使用 IN

WHERE AREA IN (@communityDesc)

但这不起作用,因为我的逗号在字符串内,而不是像"aaa","bbb","ccc"

所以我的问题是,我能对@communityDesc做些什么,所以它可以用我的IN语句,比如重新格式化字符串？

我有这样一个公众enum:

public enum occupancyTimeline
{
    TwelveMonths,
    FourteenMonths,
    SixteenMonths,
    EighteenMonths
}

我将用于这样的DropDown菜单:

@Html.DropDownListFor(model => model.occupancyTimeline, 
   new SelectList(Enum.GetValues(typeof(CentralParkLCPreview.Models.occupancyTimeline))), "")

现在我正在寻找我的价值观

12个月,14个月,16个月,18个月而不是TweleveMonths,十四个月,十六个月,十八个月

我怎么做到这一点？

我正在使用AlamofireImages尝试从服务器下载图像并将其显示在我的表格视图单元格中,这是我得到的,但我的图像没有出现,只有textLabel和detailTextLabel

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

        let cell = tableView.dequeueReusableCell(withIdentifier: "trendingCell", for: indexPath)

        print(self.array[indexPath.row])

        cell.textLabel?.text = (self.array[indexPath.row]["title"] as! String)

        cell.detailTextLabel?.text = (self.array[indexPath.row]["username"] as! String)

        Alamofire.request("http://xxxxxxx.com/uploads/" + (self.array[indexPath.row]["cover"] as! String)).responseImage { response in
            if let image = response.result.value {
                cell.imageView?.image = image
            }
        }

        return cell
    }

我有UIWebView,在其scrollView中,我添加了一个UIImageView,如下所示:

self.webview.scrollView.addSubview(image)

我的问题是当我将设备从纵向旋转到横向时,UIImageView没有停留在我最初在scrollView上设置的位置,我理解屏幕的宽度和高度变化,我想我想要改变它在我的UIImageView上的位置,所以它似乎没有改变.

我有这个方法:

 override func viewWillTransitionToSize(size: CGSize, withTransitionCoordinator coordinator: UIViewControllerTransitionCoordinator) {

        var newScrollViewFrame = webview.scrollView.frame
        var newFrame = webview.frame

        newFrame.size.width = size.width
        newFrame.size.height = size.height

        newScrollViewFrame.size.width = size.width
        newScrollViewFrame.size.height = size.height

        webview.frame = newFrame
        webview.scrollView.frame = newScrollViewFrame

    }

此方法中的当前代码只调整UIWebView及其滚动视图的大小,但不调整scrollView中的UIImageViews

任何帮助,将不胜感激.

谢谢,

我尝试过以下方法:

for views in webview.scrollView.subviews
        {
            if(views.isKindOfClass(UIImageView))
            {
                views.transform = CGAffineTransformMakeRotation(CGFloat(M_PI)/2);

            }
        }

但这会在旋转时侧向放置UIImageView

以下是我如何将webview添加到视图中:

webview = UIWebView()

        webview.frame = self.view.bounds
        webview.scrollView.frame = webview.frame

        webview.userInteractionEnabled = true
        webview.scalesPageToFit = true
        webview.becomeFirstResponder()
        webview.delegate = self
        webview.scrollView.delegate = self
        self.view.addSubview(webview) …

我刚刚将我的项目转换为Swift 3我在这里有这行代码:

let type = self.data[indexPath.row]["Type"] as? String

但现在我收到这个错误:

Type 'Any' has no subscript members

为什么我会收到此错误并修复它？

我有一个我想连接的API,服务器是Windows身份验证.

我正在尝试将URLSession与URLCredential一起使用委托方法

func urlSession(_ session: URLSession, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Swift.Void){

        var disposition: URLSession.AuthChallengeDisposition = URLSession.AuthChallengeDisposition.performDefaultHandling

        var credential:URLCredential?

        print(challenge.protectionSpace.authenticationMethod)

        if challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodServerTrust {
            credential = URLCredential(trust: challenge.protectionSpace.serverTrust!)

            if (credential != nil) {
                disposition = URLSession.AuthChallengeDisposition.useCredential
            }
            else
            {
                disposition = URLSession.AuthChallengeDisposition.performDefaultHandling
            }
        }
        else
        {
            disposition = URLSession.AuthChallengeDisposition.cancelAuthenticationChallenge
        }

        completionHandler(disposition, credential);
    }

执行某些打印后,此代码运行两次,因为有两种身份验证方法:

NSURLAuthenticationMethodServerTrust和NSURLAuthenticationMethodNTLM在通过NSURLAuthenticationMethodServerTrust运行时一切正常,但是当它运行NSURLAuthenticationMethodNTLM时,我在此行上收到错误:

credential = URLCredential(trust: challenge.protectionSpace.serverTrust!)

这样说:

fatal error: unexpectedly found nil while unwrapping an Optional value

但只有当我改变这个条件时

if challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodServerTrust { …

我有一个像这个css的元素:

element.style {
    background-image: url(image.jpg);
}
.panel-image {
    background-position: center center;
    background-repeat: no-repeat;
    -webkit-background-size: cover;
    background-size: cover;
    position: relative;
}

我现在正试图使它成为一个固定的位置,所以当我尝试执行以下操作时:

.panel-image {
    background-position: center center;
    background-repeat: no-repeat;
    -webkit-background-size: cover;
    background-size: cover;
    position: fixed;
    width: 100%;
    height: 200px;
}

该元素不再出现在页面上.

有一个元素包围这个元素:

.twentyseventeen-panel {
    overflow: hidden;
    position: relative;
}

这是html:

<article id="panel1" class="twentyseventeen-panel  post-47 page type-page status-publish has-post-thumbnail hentry">


        <div class="panel-image" style="background-image: url(https://2017.wordpress.net/wp-content/uploads/2016/10/pexels-photo-30724-2000x1200.jpg);">
            <div class="panel-image-prop" style="padding-top: 60%"></div>
        </div><!-- .panel-image -->


    <div class="panel-content">
        <div class="wrap">
            <header class="entry-header">
                <h2 class="entry-title">Our Drinks</h2>

            </header><!-- .entry-header …

我从存储过程中获取XML输出.我想要做的是获取XML并通过ASP.NET传递出来:

public XmlDocument GetPunchListXml(string communityDesc)
{
    try
    {
        using (connection = new SqlConnection(connectionString))
        {
             connection.Open();

             using (SqlCommand command = new SqlCommand("GetPunchList", connection))
             {
                   command.CommandType = CommandType.StoredProcedure;

                   SqlParameter parameter1 = new SqlParameter("@communityDesc", SqlDbType.VarChar);
                   parameter1.Value = communityDesc;
                   parameter1.Direction = ParameterDirection.Input;
                   command.Parameters.Add(parameter1);

                   var doc = new XmlDocument();
                   var reader = command.ExecuteXmlReader();
                   if (reader.Read())
                   {
                       doc.Load(reader);
                   }

                   return doc;
               }
           }
      }
      finally
      {
         connection.Close();
      }
}

但我一直收到这些错误:

<Error>
    <Message>An error has occurred.</Message>
    <ExceptionMessage>
        The 'ObjectContent`1' type failed to serialize the response body for …