从 C# 中的 div 中删除类
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/10192919/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
removing class from a div in c#
提问by neuDev33
I tried using the server-side .CssClass, but this isn't available for me to use.
My div has runat="server"so I can access it, but I just cannot see .CssClassin the drop-down when i hit ".". Does anyone know how to get past this or any other solution that might work?
我尝试使用 server-side .CssClass，但这对我来说不可用。我的 div 有runat="server"所以我可以访问它，但是.CssClass当我点击“.”时我看不到下拉列表。有谁知道如何解决这个问题或任何其他可能有效的解决方案？
Ok, my bad. I just found out that this does not work for HTML controls, only for asp controls
好吧，我的错。我刚刚发现这不适用于 HTML 控件，仅适用于 asp 控件
采纳答案by Tim B James
If you are wanting to read the class name, you will need to use the code:
如果您想读取类名，则需要使用以下代码：
string className = Test.Attributes["class"].ToString();
If you are wanting to replace a specific class you will need to use the code:
如果要替换特定类，则需要使用以下代码：
Test.Attributes.Add("class", Test.Attributes["class"].ToString().Replace("spacerDiv", ""));
回答by huMpty duMpty
HTML
<div id="Test" runat="server"></div>
Code Behind
背后的代码
add => Test.Attributes.Add("class", "myClass")
remove => Test.Attributes.("class") = "";
回答by Somnath Kharat
This would be more specific:
这将更具体：
HTML
HTML
<div id="Test" runat="server"></div>
Servewr code:
服务器代码：
Test.Attributes.Remove("class");
回答by TGarrett
This is the same solution as Tim, but I removed the not needed toString method.
这与 Tim 的解决方案相同，但我删除了不需要的 toString 方法。
myDiv.Attributes.Add("class", myDiv.Attributes["class"].Replace("spacerDiv", ""));
To add a class to a div is somewhat the same.
将类添加到 div 有点相同。
myDiv.Attributes.Add("class", "spacerDiv");
回答by Abhishek Kanrar
Remove css class
删除css类
myDiv.Attributes["class"]=" ";
myDiv.Attributes["class"]="";
回答by Kasim Husaini
A better approach to handle adding or removing class for any HtmlGenericControl would be to use the extension as provided below:
处理为任何 HtmlGenericControl 添加或删除类的更好方法是使用如下提供的扩展：
public static void RemoveCssClass(this HtmlGenericControl controlInstance, string css)
{
var strCssClass = controlInstance.Attributes["class"];
controlInstance.Attributes["class"] = string.Join(" ", strCssClass.Split(' ').Where(x => x != css).ToArray());
}
public static void AddCssClass(this HtmlGenericControl controlInstance, string css)
{
var strCssClass = controlInstance.Attributes["class"];
controlInstance.Attributes["class"] = string.Join($" {css} ", strCssClass.Split(' ').ToArray());
}
For WebControl the same code can be modified as below:
对于 WebControl，可以修改相同的代码如下：
public static void RemoveCssClass(this WebControl controlInstance, string css)
{
controlInstance.CssClass = string.Join(" ", controlInstance.CssClass.Split(' ').Where(x => x != css).ToArray());
}
public static void AddCssClass(this WebControl controlInstance, string css)
{
controlInstance.CssClass = string.Join($" {css} ", controlInstance.CssClass.Split(' ').ToArray());
}
