当我试图向我的主页中的html标记添加一个属性时:
<!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">就像后面的代码一样:
prmimaryhtml_tag.Attributes.Add("lang", "en")我知道这个错误:
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,它包含以下一行:
Protected WithEvents primtag As Global.System.Web.UI.HtmlControls.HtmlElement现在,最奇怪的是:这段代码在我的本地机器上正确工作,但在我的生产服务器上却不正确。我也不知道是什么导致了这种不同的行为。
我还看了这篇文章:set pages main html tag in c#
当我的情况如下时,更新:
main.master.designer.vb
Protected WithEvents primtag As Global.System.Web.UI.HtmlControls.HtmlElementmain.master.aspx
<html xmlns="http://www.w3.org/1999/xhtml" ID="primtag" runat="server">main.master.aspx.vb
这一行评论如下:
'primtag.Attributes.Add我得到:
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,我尝试在生产服务器上将main.master.designer.vb文件中的该行从Protected WithEvents primtag As Global.System.Web.UI.HtmlControls.HtmlElement更改为Protected WithEvents primtag As Global.System.Web.UI.HtmlControls.HtmlGenericControl:
Object reference not set to an instance of an object.
更新2
这可能与我的解决方案的汇编有关,我还查看了以下几篇文章:
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,应用程序池被设置为ASP.NET 4.0,与我的生产服务器上的设置相同。我在Visual中的目标框架编译设置为.NET Framework4.5。
希望这提供了更多的洞察力,使其发挥作用。(请帮助:)
发布于 2013-11-30 20:42:13
可能的话,每个动态添加的属性都应该以任何特殊的前缀(例如"xml")开头。
检查this线程,这可能会有帮助。
https://stackoverflow.com/questions/20060196
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