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Creating a master page in ASP.NET error on markup aspx page RRS feed

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    User-2004582644 posted

    I tried creating a master page in ASP.NET

    I have this error on the Markup of page sDefault.aspx where I need call the master page :

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

    Why I have this error ? In the MasterPage.master.cs I have insert the :

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

    How to do resolve this? My code below.

    This is the code of MasterPage.master.cs

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

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

    This is the code of MasterPage.master

    <%@ 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>

    And this the Markup of page sDefault.aspx where I need call the master page :

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

    Code-Behind sDefault.asp.cs

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

    Friday, December 7, 2018 11:12 AM

Answers

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    User283571144 posted

    Hi Chevy Marl Sunderland,

    As far as I know, if you want to use the master page's code-beind method in the gridview databind eval, I suggest you could convert the method to be static and use import namespace in the aspx page.

    More details, you could refer to below codes:

    Master page code-behind:

    using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace EmptyWebFormTest
{
    public partial class Mpdue : System.Web.UI.MasterPage
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            InitializeCulture();
            Response.Write("<br /><br />My masterpage is : " + this.Page.Title);
        }

        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);
        }
    }
}

    Child page aspx:

    <%@ Page Title="" Language="C#" MasterPageFile="~/Mpdue.Master" AutoEventWireup="true" CodeBehind="TestForWebFormMS.aspx.cs" Inherits="EmptyWebFormTest.TestForWebFormMS" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
    <%--Start GridView--%>
        <%@ Import Namespace="EmptyWebFormTest" %>
 
            <asp:GridView ID="gvProducts" AutoGenerateColumns="False" EmptyDataText="No data" EnableViewState="true"
            runat="server" DataKeyNames="sID" CssClass="mGrid" Width="500" HorizontalAlign="Center">
            <AlternatingRowStyle CssClass="altrows" />
            <Columns>
                <asp:TemplateField>
                   <ItemTemplate>
                       <asp:HyperLink runat="server"
                        NavigateUrl='<%#(String.IsNullOrEmpty(Eval("Nr").ToString()) ? "" : 
                      Eval("Nr").ToString().Equals("0") ? "" : 
                      string.Format("sExport1.aspx?d={0}&s={1}", Mpdue.Base64ForUrlEncode(HttpUtility.UrlEncode(Eval("d").ToString())),
   HttpUtility.UrlEncode(Mpdue.Base64ForUrlEncode("s")))) %>' />
                   </ItemTemplate>

                </asp:TemplateField>
            </Columns>
        </asp:GridView>
 
</asp:Content>

    Best Regards,

    Brando

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Thursday, December 13, 2018 7:47 AM

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    User2103319870 posted

    Chevy Marl Sunderland

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

    MasterPage MasterPage = (MasterPage)Page.Master;
        MasterPage.Base64ForUrlEncode(null);

    Change the code like below

     MasterPage MasterPage = (MasterPage)this.Master;
            MasterPage.Base64ForUrlEncode(null);

    Also you are using the class name MasterPage, as your page name. Try changing it to a different name

    Friday, December 7, 2018 2:39 PM
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    User-1716253493 posted

    Try This

    <%# MasterPage.Base64ForUrlEncode("TestUrl") %>

    Seem like you want use it every where, why not create a class?

    Friday, December 7, 2018 4:55 PM
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    User-2004582644 posted

    Thank you for help.

    I have changed the code, but I have this error :

    CS1061: 'System.Web.UI.MasterPage' does not contain a definition of 'Base64ForUrlEncode'

    Default.aspx

    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="testing_Default" EnableEventValidation="false" 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">

    <%--Start GridView--%>
    <asp:Panel ID="pngvProducts" runat="server" Visible="false">
        <asp:GridView ID="gvProducts" AutoGenerateColumns="False" EmptyDataText="Nessun dato disponibile" EnableViewState="true"
            runat="server" DataKeyNames="sID" CssClass="mGrid" Width="500" HorizontalAlign="Center">
            <AlternatingRowStyle CssClass="altrows" />
            <Columns>
                <asp:TemplateField>
                    <ItemTemplate>
                        <%# MasterPage.Base64ForUrlEncode("TestUrl") %>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>
    </asp:Panel>
</asp:Content>

    Default.cs

    using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.Odbc;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class testing_Default : System.Web.UI.Page
{
    public MasterPage master;
    
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            MasterPage MasterPage = (MasterPage)this.Master;
            MasterPage.Base64ForUrlEncode(null);
        }
    }
}

    MasterPage.master.cs

    using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.Odbc;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

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

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

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

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

    MasterPage.master

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

    Wednesday, December 12, 2018 8:38 AM
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    User-2004582644 posted

    Thank you for reply.

    I have tried your suggestion without success.

    I have semplified my code but I have the same error.

    Mpdue.master.cs

    using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class testing_Mpdue : System.Web.UI.MasterPage
{
    protected void Page_Load(object sender, EventArgs e)
    {
        InitializeCulture();
        Response.Write("<br /><br />My masterpage is : " + this.Page.Title);
    }

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

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

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

    Mpdue.master

    <%@ Master Language="C#" AutoEventWireup="true" CodeFile="Mpdue.master.cs" Inherits="testing_Mpdue" %>

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

    Default.cs

    using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.Odbc;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class testing_Default : System.Web.UI.Page
{    
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            MasterPage Mpdue = (MasterPage)this.Master;           
        }
    }
}

    Default.aspx

    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="testing_Default" EnableEventValidation="false" MasterPageFile="Mpdue.master" %>

<%@ MasterType VirtualPath="Mpdue.master" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">

    <%--Start GridView--%>
    <asp:Panel ID="pngvProducts" runat="server" Visible="false">
        <asp:GridView ID="gvProducts" AutoGenerateColumns="False" EmptyDataText="No data" EnableViewState="true"
            runat="server" DataKeyNames="sID" CssClass="mGrid" Width="500" HorizontalAlign="Center">
            <AlternatingRowStyle CssClass="altrows" />
            <Columns>
                <asp:TemplateField>
                   <ItemTemplate>
                       <asp:HyperLink runat="server"
                        NavigateUrl='<%#(String.IsNullOrEmpty(Eval("Nr").ToString()) ? "" : 
                      Eval("Nr").ToString().Equals("0") ? "" : 
                      string.Format("sExport1.aspx?d={0}&s={1}", Mpdue.Base64ForUrlEncode(HttpUtility.UrlEncode(Eval("d").ToString())),
   HttpUtility.UrlEncode(Mpdue.Base64ForUrlEncode("s")))) %>' />
                   </ItemTemplate>

                </asp:TemplateField>
            </Columns>
        </asp:GridView>
    </asp:Panel>
</asp:Content>

    Wednesday, December 12, 2018 4:36 PM
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    User283571144 posted

    Hi Chevy Marl Sunderland,

    As far as I know, if you want to use the master page's code-beind method in the gridview databind eval, I suggest you could convert the method to be static and use import namespace in the aspx page.

    More details, you could refer to below codes:

    Master page code-behind:

    using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace EmptyWebFormTest
{
    public partial class Mpdue : System.Web.UI.MasterPage
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            InitializeCulture();
            Response.Write("<br /><br />My masterpage is : " + this.Page.Title);
        }

        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);
        }
    }
}

    Child page aspx:

    <%@ Page Title="" Language="C#" MasterPageFile="~/Mpdue.Master" AutoEventWireup="true" CodeBehind="TestForWebFormMS.aspx.cs" Inherits="EmptyWebFormTest.TestForWebFormMS" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
    <%--Start GridView--%>
        <%@ Import Namespace="EmptyWebFormTest" %>
 
            <asp:GridView ID="gvProducts" AutoGenerateColumns="False" EmptyDataText="No data" EnableViewState="true"
            runat="server" DataKeyNames="sID" CssClass="mGrid" Width="500" HorizontalAlign="Center">
            <AlternatingRowStyle CssClass="altrows" />
            <Columns>
                <asp:TemplateField>
                   <ItemTemplate>
                       <asp:HyperLink runat="server"
                        NavigateUrl='<%#(String.IsNullOrEmpty(Eval("Nr").ToString()) ? "" : 
                      Eval("Nr").ToString().Equals("0") ? "" : 
                      string.Format("sExport1.aspx?d={0}&s={1}", Mpdue.Base64ForUrlEncode(HttpUtility.UrlEncode(Eval("d").ToString())),
   HttpUtility.UrlEncode(Mpdue.Base64ForUrlEncode("s")))) %>' />
                   </ItemTemplate>

                </asp:TemplateField>
            </Columns>
        </asp:GridView>
 
</asp:Content>

    Best Regards,

    Brando

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Thursday, December 13, 2018 7:47 AM