Visual Studio ERROR: The Web Application Project xxx is configured to use IIS. Unable to access the IIS metabase. You do not have sufficient privilege to access IIS web sites on your machine.

Solution 1

Steps:

1. Open “Run" Window (win + R), paste and run the following path,
   %systemroot%\System32\inetsrv\config
2. Click the Continues button to get the access
3. Reload project

 

Solution 2

Run Visual Studio as Administrator

macOS Sierra – 「xxx.app」已損毀，無法打開。您應該將其丟到「垃圾桶」。

升級到macOS Sierra後，會發現「系統偏好設定」-》「安全性與隱私」-》「一般」->「允許以下來源的App」中的「任何來源」消失了。

Set UIImage from URL

Init: UIImage(data: NSData)

let url = NSURL(string: "http://getbootstrap.com/assets/img/devices.png")
let data = NSData(contentsOfURL: url!)
UIImage(data: data!)

Failed to instantiate the default view controller for UIMainStoryboardFile ‘Main’

Error:

Failed to instantiate the default view controller for UIMainStoryboardFile 'Main' - perhaps the designated entry point is not set?

出現以上錯誤，可能是因為在Project中刪除了默認的storyboard並重新建立

解決方案：

在“Attributes inspector”中tick中 “Is Initial View Controller”

CocoaPads 使用篇

在Project Folder中建立Podfile，配置如下：

platform :ios, '8.0'
use_frameworks!

target 'MyApp' do
pod 'AFNetworking', '~> 2.6'
pod 'ORStackView', '~> 3.0'
pod 'SwiftyJSON', '~> 2.3'
end

CocoaPods 安裝篇

Installation

$ sudo gem install cocoapods

成功安裝後出現以下訊息：

列舉型別 (Enumeration) 轉換

enum 不同類型之間的轉換

enum Days {Sun=1, Mon, Tue, Wed, Thu, Fri, Sat};

1, enum to int

int dayInterger = (int)Days.Sun;
// dayInterger = 1;

Custom FolderBoswer (FolderBrowserDialog as OpenFileDialog)

FolderBrowserDialog 類別

using (FolderBrowserDialog folderBrowser = new FolderBrowserDialog())
{
    if (folderBrowser.ShowDialog() == DialogResult.OK)
    {
        // get folderBrowser.SelectedPath
    }
}

使用 Class 配置 log4net

What is Apache log4net™

The Apache log4net library is a tool to help the programmer output log statements to a variety of output targets. log4net is a port of the excellent Apache log4j™ framework to the Microsoft® .NET runtime. We have kept the framework similar in spirit to the original log4j while taking advantage of new features in the .NET runtime. For more information on log4net see the features document.

Thread Start with Parameters

Function

void DoWork (string p1, object p2) 
{
    // code
}

void DoWork (object p)
{
    // code
}

---

方案 1

new Thread(() => DoWork("P1", "P2").Start();