asp.net – 通过代码隐藏结果在错误类型(System.Web.UI.HtmlControls.HtmlElement)中向html标记添加属性不兼容

当我尝试在我的母版页中向我的html标记添加属性时：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" id="primtag" runat="server">

像代码背后一样：

prmimaryhtml_tag.Attributes.Add("lang","en")

我收到此错误：

Parser Error

Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. 

Parser Error Message: The base class includes the field 'primtag',but its type (System.Web.UI.HtmlControls.HtmlElement) is not compatible with the type of control (System.Web.UI.HtmlControls.HtmlGenericControl).

Source Error: 


Line 4:  
Line 5:  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
Line 6:  <html xmlns="http://www.w3.org/1999/xhtml" id="primtag" runat="server">
Line 7:  <head id="Head1" runat="server">
Line 8:      <title></title>

Source File: /main.master    Line: 6

我还检查了main.master.designer.vb并保留了这一行：

Protected WithEvents primtag As Global.System.Web.UI.HtmlControls.HtmlElement

现在,最奇怪的是：这个代码在我的本地机器上正常工作,但在生产服务器上却没有.我不知道是什么导致了这种不同的行为.

我也看过这篇文章：set pages main html tag in c#

UPDATE
我的情况如下：

main.master.designer.vb

Protected WithEvents primtag As Global.System.Web.UI.HtmlControls.HtmlElement

main.master.aspx

<html xmlns="http://www.w3.org/1999/xhtml" ID="primtag" runat="server">

main.master.aspx.vb

评论这一行：

'primtag.Attributes.Add

我明白了：

Parser Error

Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. 

Parser Error Message: The base class includes the field 'primtag',but its type (System.Web.UI.HtmlControls.HtmlElement) is not compatible with the type of control (System.Web.UI.HtmlControls.HtmlGenericControl).

Source Error: 


Line 4:  
Line 5:  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
Line 6:  <html xmlns="http://www.w3.org/1999/xhtml" ID="primtag" runat="server">
Line 7:  <head id="Head1" runat="server">
Line 8:      <title></title>

之后我尝试将main.master.designer.vb文件中的那一行从Protected WithEvents primtag更改为Global.System.Web.UI.HtmlControls.HtmlElement to Protected WithEvents primtag As Global.System.Web.UI.HtmlControls.HtmlGenericControl On我得到的生产服务器：

你调用的对象是空的.

更新2

它可能与我的解决方案的编译有关,我还检查了这些帖子：

http://briancaos.wordpress.com/2013/08/07/system-web-ui-htmlcontrols-htmliframe-is-not-compatible-with-the-type-of-control-system-web-ui-htmlcontrols-htmlgenericcontrol/
https://connect.microsoft.com/VisualStudio/Feedback/details/736011/iframe-parser-error
http://forums.asp.net/t/1884696.aspx?help+required+with+iframes+on+aspx
http://support.microsoft.com/kb/941824
http://forums.asp.net/t/1686949.aspx

然后我检查本地机器上的IIS7.5设置,应用程序池设置为ASP.NET4.0,与我的生产服务器上的相同.
我在Visual Studio中的目标框架编译设置为.NET Framework 4.5.

希望这为实现这一目标提供了更多见解.请帮忙：)

解决方法

可能每个动态添加的属性应该以任何特殊(例如,“xml”)前缀开头.

检查this线程,这可能会有所帮助.

asp.net – 通过代码隐藏结果​​在错误类型(System.Web.UI.HtmlControls.HtmlElement)中向html标记添加属性不兼容

解决方法

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asp.net – 通过代码隐藏结果在错误类型(System.Web.UI.HtmlControls.HtmlElement)中向html标记添加属性不兼容