Load Razor Views From Database in ASP.NET MVC 5

We are trying to develop a corporate CMS application in ASP.NET MVC 5. The user needs to create a new page, change an existing page content or delete a page alltogether from an admin application. Another requirement states that some of the pages can include custom widgets which were written in Razor syntax. These 2 requirements lead me to load razor views from the database. I googled and find

在ASP.NET MVC中从数据库加载Razor视图5

我们正在尝试在ASP.NET MVC 5中开发一个企业CMS应用程序。用户需要从管理应用程序创建新页面,更改现有页面内容或者全部删除页面。 另一个要求是,某些页面可以包含用Razor语法编写的自定义小部件。 这2个要求导致我从数据库加载剃须刀视图。 我搜索了一下,找到了几个例子。 第一个是扩展VirtualPathProvider,并在Application_Start方法中使用下面的表达式注册它。 protected void Application_Start() { ... Ho

Get error when I called RedirectToAction in server

Environment. Develop : VisualStudio2012 MVC4 .NetFrameWrok4.5 Server : WindowsServer2008 R2 iis 7.5 If i failed log in. I call -> return RedirectToAction("LoginError", "Search"); It is working successfully when i debug on VisualStudio. But, It is return error page on server. This is error message. Server Error in '/' Application Description: An unhandled

当我在服务器中调用RedirectToAction时发生错误

环境。 开发: VisualStudio2012 MVC4 .NetFrameWrok4.5 服务器: WindowsServer2008 R2 iis 7.5 如果我登录失败,我调用 - > return RedirectToAction("LoginError", "Search"); 当我在VisualStudio上调试时它工作正常。 但是,它是服务器上的返回错误页面。 这是错误消息。 '/'中的服务器错误应用程序描述:执行当前Web请求期间发生未处理的异常。 请查看堆栈跟踪以获取有关该错

Umbraco Cannot render a macro when there is no current PublishedContentRequest

Hope you can help me.I encountered that error upon calling a view from my umbraco razor page using RenderMvcController. It's seems it can't render my created macro inside a layout page. Line 4: } Line 5: Line 6: @Umbraco.RenderMacro("ExternalRedirect") Line 7: Line 8: Source File: c:WorkingGitIDUMB PackagesWebsiteViewsDefault.cshtml Line: 6 Stack Trace: [InvalidOper

Umbraco当没有当前PublishedContentRequest时,无法呈现宏

希望你能帮助我。我在使用RenderMvcController从我的umbraco剃刀页面调用视图时遇到了这个错误。 它似乎无法在布局页面中呈现我创建的宏。 第4行:}第5行: 第6行:@ Umbraco.RenderMacro(“ExternalRedirect”)第7行: 第8行: 源文件:c: Working Git ID UMB Packages Website Views Default.cshtml行:6 堆栈跟踪: [InvalidOperationException:当没有当前PublishedContentRequest时无法呈现宏。] Umb

Why do I get a null exception on post in my DropDownListFor?

I know this sounds like every other question on the net about this but it's actually not. I have tried finding the right answer high and low so as to not waste anyone's time but to no avail. I should also add that I am pretty new to MVC.NET. I have an MVC 4 view with a DropDownListFor call that throws a null ref exception on post. I am trying to test a submit with nothing selected sc

为什么在我的DropDownListFor中发布一个空的异常?

我知道这听起来像网络上的其他问题,但实际上并非如此。 我试着找到正确的答案,以免浪费任何人的时间,但无济于事。 我还应该补充一点,我对MVC.NET来说很新。 我有一个DropDownListFor调用MVC 4视图,抛出一个空引用异常后。 我正在尝试测试没有选择任何选项的提交,即选择默认选择。 理想情况下,它会被拿起并用必要的现场消息向我吼叫。 我发现省份模型属性事实上在帖子上设置为-1,所以这很有用。 现在,这是我的

C question: Padding bits in unsigned integers and bitwise operations (C89)

I have a lot of code that performs bitwise operations on unsigned integers. I wrote my code with the assumption that those operations were on integers of fixed width without any padding bits. For example an array of 32 bit unsigned integers of which all 32 bits available for each integer. I'm looking to make my code more portable and I'm focused on making sure I'm C89 compliant (i

C问题:填充无符号整数和按位运算(C89)

我有很多代码对无符号整数执行按位运算。 我写了我的代码,假设这些操作是在没有任何填充位的情况下是固定宽度的整数。 例如,一个32位无符号整数的数组,其中所有32位可用于每个整数。 我期望让我的代码更具可移植性,我专注于确保我符合C89(在这种情况下)。 我遇到的其中一个问题是可能的填充整数。 以GMP手册中的这个极端例子为例: 然而,在Cray矢量系统中,可能会注意到short和int总是以8个字节存储(并且sizeof

Arithmetic Operations

Can you please explain the below lines, with some good examples. A left arithmetic shift by n is equivalent to multiplying by 2n (provided the value does not overflow). And: A right arithmetic shift by n of a two's complement value is equivalent to dividing by 2n and rounding toward negative infinity. If the binary number is treated as ones' complement, then the same right-shift op

算术运算

你能否用下面的例子来解释下面的内容? 算术左移n等于乘以2n(假设该值不溢出)。 和: n的二进制补码值的右算术移位相当于除以2n并向负无穷大舍入。 如果二进制数被视为1的补码,则相同的右移运算会导致2n除法并向零舍入。 我将解释我们更熟悉的基地会发生什么:10。 以10为基数,假设您的数字为N = 123。 现在,你将这个数字“移”到左边的k = 3个位置,用0填充空的数字。所以你得到X = 123000。 请注意,X = N *

How does Unary Operator '&' work

How does the unary operator '&' work ? In a test project i ran this code: int num = 50, num2 = 100; int x = num & num2; result: x = 32 int num = 100, num2 = 90; int x = num & num2; result :x = 64 How is this calculated ? From MSDN: Binary & operators are predefined for the integral types and bool. For integral types, & computes the logical bitwise AND

一元运营商如何工作?

一元运算符'&'如何工作? 在一个测试项目中,我运行了这段代码: int num = 50, num2 = 100; int x = num & num2; 结果:x = 32 int num = 100, num2 = 90; int x = num & num2; 结果:x = 64 这是如何计算的? 来自MSDN: 二进制和运算符是为整型和布尔值预定义的。 对于整数类型,&计算其操作数的逻辑按位与。 对于bool操作数,&计算其操作数的逻辑与; 也就是说,当且仅当它的两个操作

Binary AND operator in If statement condition

I Didn't understand this piece of code. Any help? for(j = 0x40; j > 0; j = j >> 1) { if(0xC9 & j) LED = 1; else LED = 0; delay_us(10); CLK = 1; delay_us(10); CLK = 0; } The for loop is a bit tricky. This operation : j = j >> 1 Is basically an integer division by two. All the bits are shifted from 1 bit to

二进制AND运算符在If语句条件中

我不明白这段代码。 任何帮助? for(j = 0x40; j > 0; j = j >> 1) { if(0xC9 & j) LED = 1; else LED = 0; delay_us(10); CLK = 1; delay_us(10); CLK = 0; } for循环有点棘手。 此操作: j = j >> 1 基本上是一个整数除以二。 所有的位都从1位移到右边。 示例: unsigned char foo = 0x20; //Binary : 0010 0000, Decimal : 32 fo

How does Bitwise AND interact with boolean values?

I have come across a piece of code that I can't wrap my head around: public void Connect() { if (!(!string.IsNullOrEmpty(_vpnConnectionName) & !string.IsNullOrEmpty(_ipToPing))) { return; } GetConnected(); } I've researched the single ampersand on SO and elsewhere, and found it is a Bitwise AND operand. However the explanations all revolve around integers.

按位与与布尔值进行交互的方式如何?

我遇到了一段代码,我无法包住头: public void Connect() { if (!(!string.IsNullOrEmpty(_vpnConnectionName) & !string.IsNullOrEmpty(_ipToPing))) { return; } GetConnected(); } 我研究了SO和其他地方的单个&符号,发现它是一个按位AND操作数。 然而,解释都是围绕整数。 我可以理解按位运算对整数的适用性,但它们如何适用于布尔值? 它是一个逻辑运算符,用于评估两侧的bools,而不

How to refresh/reload Desktop

I have a WPF C# project in which I'm implementing settings for Windows folder options. One of them is "Single-click to open an item" (instead of double-click). When I change the registry keys for that matter, I need to refresh Windows Explorer which I found a solution for. But desktop doesn't refresh, and even refreshing it manually doesn't apply the changes. I've us

如何刷新/重新加载桌面

我有一个WPF C#项目,我正在实现Windows文件夹选项的设置。 其中之一是“单击打开一个项目”(而不是双击)。 当我为这个问题更改注册表项时,我需要刷新我找到解决方案的Windows资源管理器。 但是桌面不会刷新,甚至手动刷新也不会应用更改。 我使用IActiveDesktop :: ApplyChanges方法,但没有工作(或者我犯了一个错误)。 我也使用了这段代码片段,但它仍然不适用我所做的更改: SHChangeNotify(0x8000000, 0x1000, IntP