asp.net-mvc

问题 I have the following code in my action: ViewBag.AccountId = new SelectList(_reference.Get("01") .AsEnumerable() .OrderBy(o => o.Order), "RowKey", "Value", "00"); and in my view: @Html.DropDownList("AccountID", null, new { id = "AccountID" }) Now I would like to create the list dynamically so in my action I would just like to hardcode a simple SelectList with the values: 00 and "" so that when I go to my view I see just a blank select box. Can someone explain how I can do this in C#. 回答1: In

问题 I have the following code in my action: ViewBag.AccountId = new SelectList(_reference.Get("01") .AsEnumerable() .OrderBy(o => o.Order), "RowKey", "Value", "00"); and in my view: @Html.DropDownList("AccountID", null, new { id = "AccountID" }) Now I would like to create the list dynamically so in my action I would just like to hardcode a simple SelectList with the values: 00 and "" so that when I go to my view I see just a blank select box. Can someone explain how I can do this in C#. 回答1: In

问题 Is there a reason why you would want to set the Layout property to null in a _Layout.cshtml? For example, like this, before rendering the body view? ... <section id="content"> @{ Layout = null; } @RenderBody() </section> ... It seems pretty nonsensical to me, and removing the line setting Layout doesn't change the way page loads work observationally. Is there any reason why you would want to set the Layout property in _Layout.cshtml? 回答1: Layout pages can have a layout too. In nested layouts

问题 I am using Rotativa to generate a pdf of my view. on my local computer this works. On my online server, it says cannot locate file or directory. It is probably a permission problem. Any idea how to fix it? Thanx in advance 回答1: Rotativa uses wkhtmltopdf at its' core, which starting from >0.12.0.0 relies on distributable VC++ lib (msvcp120.dll) You may need to download the installer from here rather than just copy dll over to the server http://wkhtmltopdf.org/downloads.html Simple test if

问题 I am using Rotativa to generate a pdf of my view. on my local computer this works. On my online server, it says cannot locate file or directory. It is probably a permission problem. Any idea how to fix it? Thanx in advance 回答1: Rotativa uses wkhtmltopdf at its' core, which starting from >0.12.0.0 relies on distributable VC++ lib (msvcp120.dll) You may need to download the installer from here rather than just copy dll over to the server http://wkhtmltopdf.org/downloads.html Simple test if

问题 I have an MVC web application. The URL for a particular area is coming in as: http://localhost/General/Bpa%3fapplication%3dTrf%23/GeneralInputs This causes a "The resource cannot be found." error. However, if I change the URL to http://localhost/General/Bpa?application=Trf#/GeneralInputs then everything works. I can see from using some route debugging tricks that the controller in the first case is: "Bpa?application=Trf#", whereas the second one is: "Bpa", which is correct. How can I account

问题 I have an MVC web application. The URL for a particular area is coming in as: http://localhost/General/Bpa%3fapplication%3dTrf%23/GeneralInputs This causes a "The resource cannot be found." error. However, if I change the URL to http://localhost/General/Bpa?application=Trf#/GeneralInputs then everything works. I can see from using some route debugging tricks that the controller in the first case is: "Bpa?application=Trf#", whereas the second one is: "Bpa", which is correct. How can I account

问题 This is my first post. I need string array validation such like below. [Required(ErrorMessage = "Content name is required")] public string[] ContentName { get; set; } I found a post which has the same situation. This answer and following code helped me so much and I could solve my problem. public class StringArrayRequiredAttribute : ValidationAttribute { protected override ValidationResult IsValid (object value, ValidationContext validationContext) { string[] array = value as string[]; if

问题 I have an MVC web application. The URL for a particular area is coming in as: http://localhost/General/Bpa%3fapplication%3dTrf%23/GeneralInputs This causes a "The resource cannot be found." error. However, if I change the URL to http://localhost/General/Bpa?application=Trf#/GeneralInputs then everything works. I can see from using some route debugging tricks that the controller in the first case is: "Bpa?application=Trf#", whereas the second one is: "Bpa", which is correct. How can I account

问题 I am using Rotativa to generate a pdf of my view. on my local computer this works. On my online server, it says cannot locate file or directory. It is probably a permission problem. Any idea how to fix it? Thanx in advance 回答1: Rotativa uses wkhtmltopdf at its' core, which starting from >0.12.0.0 relies on distributable VC++ lib (msvcp120.dll) You may need to download the installer from here rather than just copy dll over to the server http://wkhtmltopdf.org/downloads.html Simple test if