如何在@ Html.TextAreaFor()中使用@ Html.Raw() [英] How to use @Html.Raw() in @Html.TextAreaFor()

问题描述

我正在使用summernote添加图像，视频，文本.另外，我将图像或视频另存为Html Code，并将其键入字符串到数据库中.当我从数据库中检索视频或图像以显示在summernote上时，大约需要5分钟，我不知道为什么.但是，当我从数据库中检索文本以显示在summernote上时，没有问题.

I am using summernote to add Image, Video, text. Also, I save image or video as Html Code that is type string to database. When I retreive video or image from the database to display on summernote, it takes nearly 5 minutes and I don't know why. However, when I retrieve text from the database to display on summernote, there is no problem.

这是模特

public class Article
{
   [AllowHtml]
   [Column(TypeName = "varchar(MAX)")]
   public string Content { get; set; }
}

这是Summernote编辑器的视图

Here is View for summernote editor

@Html.TextAreaFor(x => Model.Content, new { @class = "", placeholder = @Blog.Helper.Resources.Content, @id = "summernote_1" })

此外，如果我在View中使用以下代码

In addition, If I use this below code in View

<div id="summernote_1">@Html.Raw(Model.Content)</div>

显示视频或图像没有问题，但是我无法编辑summernote.当我编辑summernote时，Model.Content为空.

No problem with displaying video or image, but I cannot edit summernote. When I edit summernote, Model.Content is getting null.

如果我在View中使用以下代码

If I use this below code in View

@Html.TextAreaFor(x => Model.Content, new { @class = "", placeholder = @Blog.Helper.Resources.Content, @id = "summernote_1" })

编辑Summernote没问题，但是显示视频或图像大约需要5分钟.

No problem with editing summernote, but displaying video or image takes nearly 5 minute.

由于这些原因，我试图在View中使用下面的代码，但是下面的代码出错.

Because of these reasons, I am trying to use this below code in View however this below code is getting error.

@Html.TextAreaFor(x => Html.Raw(Model.Content), new { @class = "", placeholder = @Blog.Helper.Resources.Content, @id = "summernote_1" })

我可以在html.TextAreaFor中使用html.raw还是该问题的解决方法，以显示视频或图像并编辑summernote. 对不起，我的英语不好，我希望有人能帮助我.

Can I use html.raw in html.TextAreaFor or What can I do for this issue to display video or image and edit summernote. Sorry my bad english and I hope that someone can help me.

推荐答案

Html.Raw方法返回System.Web.IHtmlString，我认为您所需要的只是传递包含HTML标记的string属性(AFAIK Html.Raw帮助器不能可以在其他HTML帮助器(如DisplayFor或TextBoxFor)中使用.

Html.Raw method returns System.Web.IHtmlString, I think what you need is just passing string property containing HTML tags (AFAIK Html.Raw helper can't be used inside other HTML helpers like DisplayFor or TextBoxFor).

如本示例所示，可以在TextAreaFor之前对Content属性使用HttpUtility.HtmlDecode(尤其是如果HTML标记在不知不觉中被编码的话):

It is possible to use HttpUtility.HtmlDecode for Content property before TextAreaFor as shown by this example (especially if HTML tags are unknowingly encoded):

@model Article

@{
    Model.Content = HttpUtility.HtmlDecode(Model.Content);
}

@Html.TextAreaFor(x => x.Content, new { @class = "", placeholder = @Blog.Helper.Resources.Content, @id = "summernote_1" })

通过这种方式，您可以从viewmodel的string属性正确渲染HTML标签，而不会丢失模型绑定.

By using this way, you can render HTML tags properly from viewmodel's string property without losing model binding.

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