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如何在基于母版页和内容页(动态)的项目中为内容页添加标题和元标记?

我对母版页使用了以下方法:

public void SetMetaTags(string title, string description, string keywords)
{

    // Get a reference to the HTML Head
    HtmlHead headTag = (HtmlHead)Page.Header;

    // Set the page title
    headTag.Title = title;

    // Add a Description meta tag
    HtmlMeta metaTag = new HtmlMeta();
    metaTag.Name = "Description";
    metaTag.Content = description;
    headTag.Controls.Add(metaTag);

    // Add a Keywords meta tag
    metaTag = new HtmlMeta();
    metaTag.Name = "Keywords";
    metaTag.Content = keywords;
    headTag.Controls.Add(metaTag);
}

所以我不知道为什么Page_Load内容页面中的以下代码有错误:

protected void Page_Load(object sender, EventArgs e)
{
    MasterPage MyMasterPage = (MasterPage)Master;

    // Error on this line:
    MyMasterPage.SetMetaTags("Title", "description", "keywords");
}

错误是:

Error 17 'System.Web.UI.MasterPage' does not contain a definition for 
'SetMetaTags' and no extension method 'SetMetaTags' accepting a first argument of
type 'System.Web.UI.MasterPage' could be found (are you missing a using directive
or an assembly reference?)
C:\Javad\---\AlmasAfzar\AlmasAfzar\AlmasAfzar\Products.aspx.cs  16  26
AlmasAfzar

在未来提前感谢

此致

4

3 回答 3

1

您需要将从 Page.Master 返回的类型转换为母版页的类型,而不是 System.Web.UI.MasterPage。

因此,如果您的具有 SetMetaTags 方法的母版页类名为 MasterWithMetaTags,您的 Page_Load 代码需要如下所示:

protected void Page_Load(object sender, EventArgs e)
{
    MasterWithMetaTags MyMasterPage = (MasterWithMetaTags)Master;
    MyMasterPage.SetMetaTags("Title", "description", "keywords"); 
}
于 2010-10-17T19:35:57.107 回答
0

没有提及错误是什么,我只能按照您所说的进行。我会确保你的 aspx 文件中有这个指令:

<%@ MasterType VirtualPath="PathToYourMasterFile" %>
于 2010-10-17T17:52:38.557 回答
0

您可以只使用 Page.Header.Title 作为页面标题。这是我的。

#region meta tags and title

                Page.Header.Title = dtArticleDetails.Rows[0]["title"].ToString();

                string Keywords = dtArticleDetails.Rows[0]["keywords"].ToString();
                string Description = dtArticleDetails.Rows[0]["description"].ToString();

                HtmlMeta keywordss = new HtmlMeta();

                HtmlHead head = (HtmlHead)Page.Header;
                keywordss.Name = "keywords";
                keywordss.Content = Keywords;
                head.Controls.Add(keywordss);

                HtmlMeta desc = new HtmlMeta();
                desc.Name = "description";
                desc.Content = Description;

                HtmlHead head2 = (HtmlHead)Page.Header;
                head2.Controls.Add(desc);

                #endregion
于 2010-10-17T21:36:07.263 回答