在ASP.NET中创建母版页在标记ASPX页面上出错

时间:2018-12-06 10:15:31

标签: c# asp.net webforms master-pages

我尝试在ASP.NET中创建一个母版页

我在页面 sDefault.aspx 标记上遇到此错误,我需要在其中调用母版页

CS0103: The name 'Base64ForUrlEncode' does not exist in the current context.

为什么我有此错误? 在 MasterPage.master.cs 中,插入:

public static string Base64ForUrlEncode(string str)
{
    byte[] encbuff = Encoding.UTF8.GetBytes(str);
    return HttpServerUtility.UrlTokenEncode(encbuff);
}

我尝试了这个solution,但没有成功。

该如何解决? 我的代码如下。

这是 MasterPage.master.cs

的代码
public partial class MasterPage : System.Web.UI.MasterPage
{    
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            InitializeCulture();
        }
    }

    protected void InitializeCulture()
    {
        Page.Culture = "en-US";
        Page.UICulture = "en-US";
    }    

    public static string Base64ForUrlEncode(string str)
    {
        byte[] encbuff = Encoding.UTF8.GetBytes(str);
        return HttpServerUtility.UrlTokenEncode(encbuff);
    }

    public static string Base64ForUrlDecode(string str)
    {
        byte[] decbuff = HttpServerUtility.UrlTokenDecode(str);
        return Encoding.UTF8.GetString(decbuff);
    }    
}

这是 MasterPage.master

的代码
<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>

    <asp:ContentPlaceHolder id="head" runat="server">
    </asp:ContentPlaceHolder>

    <style type="text/css">

        .labelStyle {
            color: red;
            background-color: yellow;
            border: Solid 2px Red;
            margin-left: auto;
            margin-right: auto;
            width: 30em;
            display: block;
            text-align: center;
        }

        .image {
            margin-left: auto;
            margin-right: auto;
        }

        .toUpper {
            text-transform: uppercase;
        }

        .header {
            background-color: #686565;
            font: bold;
            color: #686565;
            text-align: center;
        }
    </style>

    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"></script>
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.5.2/jquery-ui.min.js"></script>

</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server">

        </asp:ContentPlaceHolder>
    </div>
    </form>
</body>
</html>

这是页面 sDefault.aspx 标记,我需要在其中调用母版页:

 <%@ Page Language="C#" AutoEventWireup="true" CodeFile="sDefault.aspx.cs" 
    Inherits="sDefault" MasterPageFile="MasterPage.master" %>
    <%@ MasterType  virtualPath="MasterPage.master"%>
    <asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
    </asp:Content>
    <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">

    <asp:GridView ID="gvProducts" 
                  AutoGenerateColumns="False" 
                  EmptyDataText="No data" 
                  EnableViewState="true"
                  runat="server" 
                  DataKeyNames="sID" 
                  HorizontalAlign="Center">
                    <AlternatingRowStyle CssClass="altrows" />
                    <Columns>
                            <asp:TemplateField 
                                 HeaderText="Nr" 
                                 ItemStyle-CssClass="ddl_Class_new" 
                                 ItemStyle-HorizontalAlign="Center">
                                <ItemTemplate>
                                    <asp:HyperLink runat="server"
                                        NavigateUrl='<%#(String.IsNullOrEmpty(Eval("Nr").ToString()) ? "" : 
                      Eval("Nr").ToString().Equals("0") ? "" : 
                      String.Format("sExport1.aspx?d={0}&s={1}",
Base64ForUrlEncode(HttpUtility.UrlEncode(Eval("d").ToString())),
   HttpUtility.UrlEncode(Base64ForUrlEncode("s")))) %>' />
                                </ItemTemplate>
                            </asp:TemplateField>
                    </Columns>
                </asp:GridView>
    </asp:Content>

编辑#1

Default.asp.cs背后的代码

protected void Page_Load(object sender, EventArgs e)
{
    if (!Page.IsPostBack)
    {
        MasterPage MasterPage = (MasterPage)Page.Master;
        MasterPage.Base64ForUrlEncode(null);
    }
}

编辑#2

Default.asp.cs背后的代码

protected void Page_Load(object sender, EventArgs e)
{
    if (!Page.IsPostBack)
    {
        MasterPage mp = (MasterPage)Page.Master;
        string test = mp.Base64ForUrlEncode("TestUrl");
    }
}

标记aspx

<asp:TemplateField>
    <ItemTemplate>
        <%# mp.Base64ForUrlEncode("TestUrl") %>
    </ItemTemplate>
</asp:TemplateField>

MasterPage.master.cs

public string Base64ForUrlEncode(string str)
{
    byte[] encbuff = Encoding.UTF8.GetBytes(str);
    return HttpServerUtility.UrlTokenEncode(encbuff);
}

2 个答案:

答案 0 :(得分:0)

Base64ForUrlEncode在母版页类(public partial class MasterPage)中,而aspx页sDefault拥有它自己的页。因此,除非您在aspx上指定名称空间,否则无法找到该方法。

<%= YourNameSpace.MasterPage.Base64ForUrlEncode("test")  %>

更新

public MasterPage master;

protected void Page_Load(object sender, EventArgs e)
{
    master = (MasterPage)Page.Master;
    string s = master.Base64ForUrlEncode("test");
}

然后将Master Public中的Base64ForUrlEncode方法设为非静态

public string Base64ForUrlEncode(string str)
{
}

现在您可以直接在aspx上引用它

<ItemTemplate>
    <%# master.Base64ForUrlEncode("TestUrl") %>                   
</ItemTemplate>

答案 1 :(得分:0)

我想参考您的修改1:

protected void Page_Load(object sender, EventArgs e)
{
    if (!Page.IsPostBack)
    {
        MasterPage MasterPage = (MasterPage)Page.Master;
        MasterPage.Base64ForUrlEncode(null);
    }
}

将其更改为:

protected void Page_Load(object sender, EventArgs e)
{
    if (!Page.IsPostBack)
    {
        MasterPage mp = (MasterPage)Page.Master;
        string test = mp.Base64ForUrlEncode("your test string");
    }
}

如果您只有1个字段和/或在后面的代码中引用一个函数来构建网址,则可以将网格更改为中继器。

在恕我直言中,这是太多逻辑了:

<asp:HyperLink runat="server"
               NavigateUrl='<%#(String.IsNullOrEmpty(Eval("Nr").ToString()) ? "" : 
                  Eval("Nr").ToString().Equals("0") ? "" : 
                  String.Format("sExport1.aspx?d={0}&s={1}",
Base64ForUrlEncode(HttpUtility.UrlEncode(Eval("d").ToString())),
   HttpUtility.UrlEncode(Base64ForUrlEncode("s")))) %>' />

(或“绑定项目数据”)