can't see properties on user control from aspx.vb

mharness

Hello,

I've tried a number of examples showing how to read the properties of a user
control from an aspx file where the code is on the html view of the form but
I can't figure out how to read them from the aspx.vb. Can anyone tell me
how to declare the user control in the aspx.vb file so that I can read the
properties?

I did add "Protected WithEvents UC1 As System.Web.UI.U serControl" to the
component code behind form but that's the only change I have made.

Many thanks,

Mike

Here's the example from dotnetjunkies I've been working with:

UCSub.aspc:

<%@ Control Language="vb" AutoEventWireup ="false" Src="UCSub.ascx .vb"
Inherits="UCSub " %>
<div align="center">
<table style="BORDER-RIGHT: 1px solid; BORDER-TOP: 1px solid; FONT: 10pt
verdana; BORDER-LEFT: 1px solid; BORDER-BOTTOM: 1px solid"
cellspacing="10 ">
<tr>
<td>
<asp:Label id="lblUserName " runat="server" Font-Bold="true" Text="User
Name:" />
</td>
<td>
<asp:TextBox id="txtUserName " runat="server" />
</td>
</tr>
<tr>
<td>
<asp:Label id="lblPassword " Font-Bold="True" Text="Password: "
runat="server" />
</td>
<td>
<asp:TextBox id="txtPassword " TextMode="Passw ord" runat="server" />
</td>
</tr>
</table>
</div>

UCSub.ascx.vb..

Public Class UCSub
Inherits System.Web.UI.U serControl

#Region " Web Form Designer Generated Code "

'This call is required by the Web Form Designer.
<System.Diagnos tics.DebuggerSt epThrough()> Private Sub
InitializeCompo nent()

End Sub
Protected WithEvents lblUserName As System.Web.UI.W ebControls.Labe l
Protected WithEvents txtUserName As System.Web.UI.W ebControls.Text Box
Protected WithEvents lblPassword As System.Web.UI.W ebControls.Labe l
Protected WithEvents txtPassword As System.Web.UI.W ebControls.Text Box

'NOTE: The following placeholder declaration is required by the Web Form
Designer.
'Do not delete or move it.
Private designerPlaceho lderDeclaration As System.Object

Private Sub Page_Init(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeCompo nent()
End Sub

#End Region

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
'Put user code to initialize the page here
End Sub

Public Sub ClearText()
txtUserName.Tex t = ""
txtPassword.Tex t = ""
End Sub

End Class

UCSub.aspx..

<%@ Register TagPrefix="DNJ" TagName="LoginC ontrol" Src="UCSub.ascx " %>
<%@ Page Language="vb" %>
<HTML>
<HEAD>
<title>Using a Sub routine in a UserControl</title>
<script runat="server">
Sub btnSubmit_Click (Sender As Object, e As EventArgs)

End Sub

Sub btnClearText_Cl ick(sender As Object, e As EventArgs)
UC1.ClearText()
End Sub
</script>
<meta name="GENERATOR " content="Micros oft Visual Studio.NET 7.0">
<meta name="CODE_LANG UAGE" content="Visual Basic 7.0">
<meta name="vs_defaul tClientScript" content="JavaSc ript">
<meta name="vs_target Schema"
content="http://schemas.microso ft.com/intellisense/ie5">
</HEAD>
<body>
<form id="form1" runat="server">
<p></p>
<DNJ:LoginContr ol id="UC1" runat="server" />
<BR>
<div align="center">
<asp:Button id="btnSubmit" text="Submit" onclick="BtnSub mit_Click"
runat="server" />
<asp:Button id="btnClearTex t" text="Clear Text"
OnClick="btnCle arText_Click" runat="server" />
<p></p>
<asp:label id="lblMessage " runat="server" />
</div>
</form>
</body>
</HTML>

UCSub.aspx.vb..

Public Class UCSub1
Inherits System.Web.UI.P age

#Region " Web Form Designer Generated Code "

'This call is required by the Web Form Designer.
<System.Diagnos tics.DebuggerSt epThrough()> Private Sub
InitializeCompo nent()

End Sub
Protected WithEvents btnSubmit As System.Web.UI.W ebControls.Butt on
Protected WithEvents btnClearText As System.Web.UI.W ebControls.Butt on
Protected WithEvents lblMessage As System.Web.UI.W ebControls.Labe l
Protected WithEvents Button1 As System.Web.UI.W ebControls.Butt on
Protected WithEvents UC1 As System.Web.UI.U serControl

'NOTE: The following placeholder declaration is required by the Web Form
Designer.
'Do not delete or move it.
Private designerPlaceho lderDeclaration As System.Object

Private Sub Page_Init(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeCompo nent()
End Sub

#End Region

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
'Put user code to initialize the page here
End Sub

End Class

Nov 25 '05 #1

Subscribe Reply

3732

mharness

Got it.

Created a namespace around the user control class then added imports
[solution name].[namespace] and public [user control ID] as [user
control].ascx.vb to the aspx.vb. After declaring a public property with a
get end get in the ascx.vb I could refer to [user control ID].[property] in
the aspx.vb.

I found good information and the essence of this approach in examples at
http://www.dotnetjohn.com/articles.aspx?articleid=52 and
http://msdn.microsoft.com/library/de...properties.asp .

Mike

"mharness" <bo***@hotmail. com> wrote in message
news:e_******** ************@co mcast.com...

Hello,

I've tried a number of examples showing how to read the properties of a
user control from an aspx file where the code is on the html view of the
form but I can't figure out how to read them from the aspx.vb. Can anyone
tell me how to declare the user control in the aspx.vb file so that I can
read the properties?

I did add "Protected WithEvents UC1 As System.Web.UI.U serControl" to the
component code behind form but that's the only change I have made.

Many thanks,

Mike

Here's the example from dotnetjunkies I've been working with:

UCSub.aspc:

<%@ Control Language="vb" AutoEventWireup ="false" Src="UCSub.ascx .vb"
Inherits="UCSub " %>
<div align="center">
<table style="BORDER-RIGHT: 1px solid; BORDER-TOP: 1px solid; FONT: 10pt
verdana; BORDER-LEFT: 1px solid; BORDER-BOTTOM: 1px solid"
cellspacing="10 ">
<tr>
<td>
<asp:Label id="lblUserName " runat="server" Font-Bold="true" Text="User
Name:" />
</td>
<td>
<asp:TextBox id="txtUserName " runat="server" />
</td>
</tr>
<tr>
<td>
<asp:Label id="lblPassword " Font-Bold="True" Text="Password: "
runat="server" />
</td>
<td>
<asp:TextBox id="txtPassword " TextMode="Passw ord" runat="server" />
</td>
</tr>
</table>
</div>

UCSub.ascx.vb..

Public Class UCSub
Inherits System.Web.UI.U serControl

#Region " Web Form Designer Generated Code "

'This call is required by the Web Form Designer.
<System.Diagnos tics.DebuggerSt epThrough()> Private Sub
InitializeCompo nent()

End Sub
Protected WithEvents lblUserName As System.Web.UI.W ebControls.Labe l
Protected WithEvents txtUserName As System.Web.UI.W ebControls.Text Box
Protected WithEvents lblPassword As System.Web.UI.W ebControls.Labe l
Protected WithEvents txtPassword As System.Web.UI.W ebControls.Text Box

'NOTE: The following placeholder declaration is required by the Web
Form Designer.
'Do not delete or move it.
Private designerPlaceho lderDeclaration As System.Object

Private Sub Page_Init(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeCompo nent()
End Sub

#End Region

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
'Put user code to initialize the page here
End Sub

Public Sub ClearText()
txtUserName.Tex t = ""
txtPassword.Tex t = ""
End Sub

End Class

UCSub.aspx..

<%@ Register TagPrefix="DNJ" TagName="LoginC ontrol" Src="UCSub.ascx " %>
<%@ Page Language="vb" %>
<HTML>
<HEAD>
<title>Using a Sub routine in a UserControl</title>
<script runat="server">
Sub btnSubmit_Click (Sender As Object, e As EventArgs)

End Sub

Sub btnClearText_Cl ick(sender As Object, e As EventArgs)
UC1.ClearText()
End Sub
</script>
<meta name="GENERATOR " content="Micros oft Visual Studio.NET 7.0">
<meta name="CODE_LANG UAGE" content="Visual Basic 7.0">
<meta name="vs_defaul tClientScript" content="JavaSc ript">
<meta name="vs_target Schema"
content="http://schemas.microso ft.com/intellisense/ie5">
</HEAD>
<body>
<form id="form1" runat="server">
<p></p>
<DNJ:LoginContr ol id="UC1" runat="server" />
<BR>
<div align="center">
<asp:Button id="btnSubmit" text="Submit" onclick="BtnSub mit_Click"
runat="server" />
<asp:Button id="btnClearTex t" text="Clear Text"
OnClick="btnCle arText_Click" runat="server" />
<p></p>
<asp:label id="lblMessage " runat="server" />
</div>
</form>
</body>
</HTML>

UCSub.aspx.vb..

Public Class UCSub1
Inherits System.Web.UI.P age

#Region " Web Form Designer Generated Code "

'This call is required by the Web Form Designer.
<System.Diagnos tics.DebuggerSt epThrough()> Private Sub
InitializeCompo nent()

End Sub
Protected WithEvents btnSubmit As System.Web.UI.W ebControls.Butt on
Protected WithEvents btnClearText As System.Web.UI.W ebControls.Butt on
Protected WithEvents lblMessage As System.Web.UI.W ebControls.Labe l
Protected WithEvents Button1 As System.Web.UI.W ebControls.Butt on
Protected WithEvents UC1 As System.Web.UI.U serControl

'NOTE: The following placeholder declaration is required by the Web
Form Designer.
'Do not delete or move it.
Private designerPlaceho lderDeclaration As System.Object

Private Sub Page_Init(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeCompo nent()
End Sub

#End Region

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
'Put user code to initialize the page here
End Sub

End Class

Nov 28 '05 #2

mharness

Hello,

I've tried a number of examples showing how to read the properties of a
user control from an aspx file where the code is on the html view of the
form but I can't figure out how to read them from the aspx.vb. Can anyone
tell me how to declare the user control in the aspx.vb file so that I can
read the properties?

I did add "Protected WithEvents UC1 As System.Web.UI.U serControl" to the
component code behind form but that's the only change I have made.

Many thanks,

Mike

Here's the example from dotnetjunkies I've been working with:

UCSub.aspc:

<%@ Control Language="vb" AutoEventWireup ="false" Src="UCSub.ascx .vb"
Inherits="UCSub " %>
<div align="center">
<table style="BORDER-RIGHT: 1px solid; BORDER-TOP: 1px solid; FONT: 10pt
verdana; BORDER-LEFT: 1px solid; BORDER-BOTTOM: 1px solid"
cellspacing="10 ">
<tr>
<td>
<asp:Label id="lblUserName " runat="server" Font-Bold="true" Text="User
Name:" />
</td>
<td>
<asp:TextBox id="txtUserName " runat="server" />
</td>
</tr>
<tr>
<td>
<asp:Label id="lblPassword " Font-Bold="True" Text="Password: "
runat="server" />
</td>
<td>
<asp:TextBox id="txtPassword " TextMode="Passw ord" runat="server" />
</td>
</tr>
</table>
</div>

UCSub.ascx.vb..

Public Class UCSub
Inherits System.Web.UI.U serControl

#Region " Web Form Designer Generated Code "

'This call is required by the Web Form Designer.
<System.Diagnos tics.DebuggerSt epThrough()> Private Sub
InitializeCompo nent()

End Sub
Protected WithEvents lblUserName As System.Web.UI.W ebControls.Labe l
Protected WithEvents txtUserName As System.Web.UI.W ebControls.Text Box
Protected WithEvents lblPassword As System.Web.UI.W ebControls.Labe l
Protected WithEvents txtPassword As System.Web.UI.W ebControls.Text Box

'NOTE: The following placeholder declaration is required by the Web
Form Designer.
'Do not delete or move it.
Private designerPlaceho lderDeclaration As System.Object

Private Sub Page_Init(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeCompo nent()
End Sub

#End Region

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
'Put user code to initialize the page here
End Sub

Public Sub ClearText()
txtUserName.Tex t = ""
txtPassword.Tex t = ""
End Sub

End Class

UCSub.aspx..

<%@ Register TagPrefix="DNJ" TagName="LoginC ontrol" Src="UCSub.ascx " %>
<%@ Page Language="vb" %>
<HTML>
<HEAD>
<title>Using a Sub routine in a UserControl</title>
<script runat="server">
Sub btnSubmit_Click (Sender As Object, e As EventArgs)

End Sub

Sub btnClearText_Cl ick(sender As Object, e As EventArgs)
UC1.ClearText()
End Sub
</script>
<meta name="GENERATOR " content="Micros oft Visual Studio.NET 7.0">
<meta name="CODE_LANG UAGE" content="Visual Basic 7.0">
<meta name="vs_defaul tClientScript" content="JavaSc ript">
<meta name="vs_target Schema"
content="http://schemas.microso ft.com/intellisense/ie5">
</HEAD>
<body>
<form id="form1" runat="server">
<p></p>
<DNJ:LoginContr ol id="UC1" runat="server" />
<BR>
<div align="center">
<asp:Button id="btnSubmit" text="Submit" onclick="BtnSub mit_Click"
runat="server" />
<asp:Button id="btnClearTex t" text="Clear Text"
OnClick="btnCle arText_Click" runat="server" />
<p></p>
<asp:label id="lblMessage " runat="server" />
</div>
</form>
</body>
</HTML>

UCSub.aspx.vb..

Public Class UCSub1
Inherits System.Web.UI.P age

#Region " Web Form Designer Generated Code "

'This call is required by the Web Form Designer.
<System.Diagnos tics.DebuggerSt epThrough()> Private Sub
InitializeCompo nent()

End Sub
Protected WithEvents btnSubmit As System.Web.UI.W ebControls.Butt on
Protected WithEvents btnClearText As System.Web.UI.W ebControls.Butt on
Protected WithEvents lblMessage As System.Web.UI.W ebControls.Labe l
Protected WithEvents Button1 As System.Web.UI.W ebControls.Butt on
Protected WithEvents UC1 As System.Web.UI.U serControl

'NOTE: The following placeholder declaration is required by the Web
Form Designer.
'Do not delete or move it.
Private designerPlaceho lderDeclaration As System.Object

Private Sub Page_Init(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeCompo nent()
End Sub

#End Region

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArg s) Handles MyBase.Load
'Put user code to initialize the page here
End Sub

End Class

Dec 4 '05 #3

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