Error 'Context' is not a member of '_Default'.\

Question

nimz143 0 Light Poster

9 Years Ago

Hi, my working with my registration web application. Here my code.

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>

<!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">
<head runat="server">
    <title></title>
    <style type="text/css">
        .style1
        {
            width: 47%;
            height: 169px;
        }
        .style2
        {
            font-size: large;
            color: #0000FF;
            font-weight: bold;
            font-family: "Berlin Sans FB";
            text-transform: uppercase;
            text-align: center;
        }
        .style3
        {
            font-family: "Trebuchet MS";
            font-size: small;
            font-weight: bold;
        }
        .style6
        {
            height: 13px;
        }
        .style7
        {
            font-family: "Trebuchet MS";
            font-size: small;
            font-weight: bold;
            width: 79px;
        }
        .style8
        {
            height: 13px;
            width: 79px;
        }
        .style9
        {
            font-family: "Trebuchet MS";
            font-size: small;
            font-weight: bold;
            width: 240px;
        }
        .style10
        {
            width: 240px;
        }
        .style11
        {
            height: 13px;
            width: 240px;
        }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>

    </div>
    <table class="style1">
        <tr>
            <td class="style2" colspan="3">
                Registration Form</td>
        </tr>
        <tr>
            <td class="style7">
                Username</td>
            <td class="style9">
                <asp:TextBox ID="UserName" runat="server" Font-Names="Malgun Gothic" 
                    Height="25px" Width="237px"></asp:TextBox>
            </td>
            <td class="style3">
                <asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" 
                    ErrorMessage="Required" Font-Bold="False" Font-Names="Calisto MT"></asp:RequiredFieldValidator>
            </td>
        </tr>
        <tr>
            <td class="style7">
                Password</td>
            <td class="style10">
                <asp:TextBox ID="Password" runat="server" Font-Names="Malgun Gothic" 
                    Height="25px" Width="237px"></asp:TextBox>
            </td>
            <td>
                <asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" 
                    ErrorMessage="Required" Font-Bold="False" Font-Names="Calisto MT" 
                    Font-Size="Small"></asp:RequiredFieldValidator>
            </td>
        </tr>
        <tr>
            <td class="style7">
                Confirm<br />
                Password</td>
            <td class="style10">
                <asp:TextBox ID="ConfirmPassword" runat="server" Font-Names="Malgun Gothic" 
                    Height="25px" Width="238px"></asp:TextBox>
            </td>
            <td>
                <asp:CompareValidator ID="CompareValidator1" runat="server" 
                    ErrorMessage="Password do not match"></asp:CompareValidator>
            </td>
        </tr>
        <tr>
            <td class="style7">
                Email</td>
            <td class="style10">
                <asp:TextBox ID="Email" runat="server" Font-Names="Malgun Gothic" Height="25px" 
                    Width="240px"></asp:TextBox>
            </td>
            <td>
                <asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server" 
                    ErrorMessage="Required" Font-Bold="False" Font-Names="Calisto MT" 
                    Font-Size="Small"></asp:RequiredFieldValidator>
                <asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" 
                    ErrorMessage="RegularExpressionValidator"></asp:RegularExpressionValidator>
            </td>
        </tr>
        <tr>
            <td class="style8">
            </td>
            <td class="style11">
                <asp:Button ID="Submit" runat="server" Font-Bold="True" Font-Names="Calibri" 
                    Font-Overline="False" Text="Submit" />
            </td>
            <td class="style6">
                 </td>
        </tr>
    </table>
    </form>
</body>
</html>

After trying to build, I found an error [ 'Context' is not a member of '_Default'.] and 26 more error. This error show in this link http://tinypic.com/view.php?pic=2130w47&s=8#.VP6qsPmUd1Y Anyone here can help me to solve this problem?

asp.net

2 Contributors
4 Replies
2K Views
18 Hours Discussion Span
Latest Post 9 Years Ago Latest Post by nimz143

djjeavons 113 partis vestri scientia

9 Years Ago

Hi

This error usually indicates that your partial class is not named correctly for some reason.

Usually, when you have a web form there are two files:

Default.aspx - this is your designer file that contains the HTML etc.
Default.aspx.vb -this is your code behind file that contains your server side code.

The Default.aspx.vb is a partial class which should be declared like:

Partial Class _Default
    Inherits System.Web.UI.Page

End Class

When compiled, the two files are effectively merged together. It seems in your situation that your partial class is not called _Default.

Open Default.aspx.vb and make sure that it's class name corresponds to your markup file, that is, it states _Default.

HTH

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nimz143 0 Light Poster · Answer 1 · 2015-03-10T09:20:09+00:00

djjeavons,

In this program, I didn't write any code to default.aspx.vb yet and only just doing some design which is drag the textbox, label,RequiredFieldValidator,Compare validator and other.

My UI : http://i58.tinypic.com/2jdp0lx.png

I want to build and debug it, but after build. Some sort of error occur as I mention above.

Its mean, I can't run my program if I didn't write the default.aspx.vb ?

djjeavons 113 partis vestri scientia · Answer 2 · 2015-03-10T09:42:21+00:00

Hi

Does the default.aspx.vb file exist in your solution? Usually when you add a web form it is created alongside the designer file as shown below:

Regardless of whether you have added any code to this file yet, you are stating in your designer file that it has an association to this class with the line:

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>

Specifically the Inherits="_Default" part. If you have no default.aspx.vb file then change this line to:

<%@ Page Language="VB" AutoEventWireup="false" %>

Although, personally, I would recommend that you do have a default.aspx.vb file and that it's class is called "_Default" as this allows you to separate your markup from your server side code.

nimz143 0 Light Poster · Answer 3 · 2015-03-11T03:13:41+00:00

Hi djjeavons,

Its working! I have tried to change the line based on the solution that you mention above. Now i'm able to build and debug my program without error anymore.
Thank you =)