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08/10/2008 at 07:42PM PDT, ID: 23636829
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9.1

Namespace problem

Asked by timothyrmyers in Visual Studio, Microsoft Visual Basic.Net, .NET Framework 3.x versions

Tags: VB.Net Visual Studio 2008, Internet Explorer

I get the following error when I insert this line of code:
<%@ Register TagPrefix="custom" Namespace="myControls" %>

I can see the class named DeleteButtonField when I click on "View Classes".  Am I missing a step somewhere?   I'm using Visual Studio 2008.



Warning      1      Namespace or type specified in the Imports 'myControls' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases.      C:\Documents and Settings\Administrator\My Documents\Visual Studio 2008\Projects\xxxxx\xxxxx\ShowDeleteButtonField.aspx      1      1      xxxxxx
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ShowDeleteButtonButtonField.aspx:
<%@ Page Language="VB" %>
<%@ Register TagPrefix="custom" Namespace="myControls" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <style type="text/css">
        .grid td, .grid th
        {
            padding:5px;
        }
    </style>
    <title>Show DeleteButtonField</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
    <asp:GridView
        id="grdMovies"
        CssClass="grid"
        DataSourceID="srcMovies"
        DataKeyNames="Id"
        AutoGenerateColumns="false"
        Runat="server">
        <Columns>
        <custom:DeleteButtonField
            ConfirmText="Are you sure that you want to delete this record?" />            
        <asp:BoundField
            DataField="Title"
            HeaderText="Movie Title" />
        <asp:BoundField
            DataField="Director"
            HeaderText="Movie Director" />
        </Columns>
    </asp:GridView>    
 
    <asp:SqlDataSource
        id="srcMovies"
        ConnectionString="<%$ ConnectionStrings:Movies %>"
        SelectCommand="SELECT Id, Title, Director FROM Movies"
        DeleteCommand="DELETE Movies WHERE Id=@Id"
        Runat="server" />
    
    </div>
    </form>
</body>
</html>
 
DeleteButtonField.vb:
Imports System
Imports System.Web.UI.WebControls
 
Namespace myControls
    ''' <summary>
    ''' Displays a confirmation before deleting a record
    ''' </summary>
    Public Class DeleteButtonField
        Inherits ButtonField
 
        Private _confirmText As String = "Delete this record?"
 
        Public Property ConfirmText() As String
            Get
                Return _confirmText
            End Get
            Set(ByVal Value As String)
                _confirmText = Value
            End Set
        End Property
 
        Public Sub New()
            Me.CommandName = "Delete"
            Me.Text = "Delete"
        End Sub
 
        Public Overrides Sub InitializeCell(ByVal cell As DataControlFieldCell, ByVal cellType As DataControlCellType, ByVal rowState As DataControlRowState, ByVal rowIndex As Integer)
            MyBase.InitializeCell(cell, cellType, rowState, rowIndex)
            If cellType = DataControlCellType.DataCell Then
                Dim button As WebControl = CType(cell.Controls(0), WebControl)
                button.Attributes("onclick") = String.Format("return confirm('{0}');", _confirmText)
            End If
        End Sub
 
    End Class
End Namespace
[+][-]08/10/08 08:52 PM, ID: 22201733

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[+][-]08/10/08 09:29 PM, ID: 22201822

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[+][-]08/11/08 09:21 AM, ID: 22205739

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[+][-]08/11/08 05:59 PM, ID: 22209466

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[+][-]08/12/08 08:23 PM, ID: 22218805

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About this solution

Zones: Visual Studio, Microsoft Visual Basic.Net, .NET Framework 3.x versions
Tags: VB.Net Visual Studio 2008, Internet Explorer
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Solution Provided By: ororiole
Participating Experts: 1
Solution Grade: A
 
 
 
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