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aspx thread: RE: Error message
Message #1 by Sam Clohesy <sam@e...> on Tue, 20 Aug 2002 13:04:30 +0100
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Anyone know what all this is about (my code behind page complies just fine):
Compiler Error Message: BC30456: 'DataItem' is not a member of
'System.Web.UI.Control'.
Source Error:
Line 29: <tr>
Line 30: <td colspan =2 class =NewsHead>
Line 31: <h3><%# DataBinder.Eval(Container.DataItem,"TextNews") %></h3>
Line 32: </td>
Line 33: </tr>
Cheers
Sam
Message #2 by "Christopher Reed" <CReed@m...> on Tue, 20 Aug 2002 08:18:33 -0500
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Sam,
Even though you do not have a lot of code here, my guesses are:
1) You are using neither a DataList, a DataGrid, nor a Repeater class;
2) You failed to DataBind to your container control;
3) This is not the statement you want to use because you are not using
a container class.
Please include more of your source code for more thorough response.
Hope this helps!
Chris
Christopher Reed
Application Analyst
Web Development Coordinator
Information Technology
City of Lubbock
creed@m...
"The oxen are slow, but the earth is patient."
>>> sam@e... 7:04:30 AM 8/20/2002 >>>
Anyone know what all this is about (my code behind page complies just
fine):
Compiler Error Message: BC30456: 'DataItem' is not a member of
'System.Web.UI.Control'.
Source Error:
Line 29: <tr>
Line 30: <td colspan =2 class =NewsHead>
Line 31: <h3><%# DataBinder.Eval(Container.DataItem,"TextNews")
%></h3>
Line 32: </td>
Line 33: </tr>
Cheers
Sam
Message #3 by Sam Clohesy <sam@e...> on Tue, 20 Aug 2002 14:42:03 +0100
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Hi Chris thanks for getting back to me:
Here is the relevant code section (code behind)
#Region "Import Statements"
Imports System
Imports System.Web.UI
Imports System.Web.UI.Page
Imports System.Web.UI.WebControls
Imports System.Web.UI.HtmlControls
Imports System.Web.Mail
Imports System.Data
Imports System.Data.SqlClient
Imports System.Configuration
Imports System.Collections
Imports Microsoft.VisualBasic
Imports Microsoft.VisualBasic.DateAndTime
Imports System.ComponentModel
Imports System.Drawing
Imports System.IO
Imports System.Text
Imports System.Web
#End Region
Public Class SelectedRow
Inherits Page
Protected WithEvents DLProducts As DataList
Protected WithEvents lUnitOnOrder As Label
Protected WithEvents lUnitsOnOrder As Label
#Region "Connection String Declation"
Private sSqlCon As String = "server=XXXX;database=XXXX;uid=XX;pwd=XXXXX"
#End Region
#Region "Page Loads"
Public Sub Page_Load(ByVal Sender As Object, ByVal E As EventArgs)
If Not IsPostBack Then
Bind()
End If
End Sub
#End Region
#Region "Bind Data"
Sub Bind()
Dim sqlCon As New SqlConnection(sSqlCon)
Dim sqlCmd As New StringBuilder()
sqlCmd.Append("select ProductName, UnitPrice,")
sqlCmd.Append("UnitsInStock,UnitsOnOrder,")
sqlCmd.Append("ProductID from Products")
Dim sda As New SqlDataAdapter(sqlCmd.ToString(), sqlCon)
Dim ds As New DataSet()
sda.Fill(ds, "products")
DLProducts.DataSource = ds.Tables("Products").DefaultView
DLProducts.DataBind()
End Sub
Public Sub DLProducts_ItemCommand(ByVal Sender As Object, ByVal e As
DataListCommandEventArgs)
If e.CommandName = "select" Then
DLProducts.SelectedIndex = e.Item.ItemIndex
Bind()
End If
End Sub
#End Region
End Class
-----Original Message-----
From: Christopher Reed [mailto:CReed@m...]
Sent: 20 August 2002 14:19
To: ASP+
Subject: [aspx] RE: Error message
Sam,
Even though you do not have a lot of code here, my guesses are:
1) You are using neither a DataList, a DataGrid, nor a Repeater class;
2) You failed to DataBind to your container control;
3) This is not the statement you want to use because you are not using
a container class.
Please include more of your source code for more thorough response.
Hope this helps!
Chris
Christopher Reed
Application Analyst
Web Development Coordinator
Information Technology
City of Lubbock
creed@m...
"The oxen are slow, but the earth is patient."
>>> sam@e... 7:04:30 AM 8/20/2002 >>>
Anyone know what all this is about (my code behind page complies just
fine):
Compiler Error Message: BC30456: 'DataItem' is not a member of
'System.Web.UI.Control'.
Source Error:
Line 29: <tr>
Line 30: <td colspan =2 class =NewsHead>
Line 31: <h3><%# DataBinder.Eval(Container.DataItem,"TextNews")
%></h3>
Line 32: </td>
Line 33: </tr>
Cheers
Sam
---
ASP.NET 1.0 Namespace Reference with C#
http://www.wrox.com/acon11.asp?ISBN=1861007442
ASP.NET 1.0 Namespace Reference with VB.NET
http://www.wrox.com/acon11.asp?ISBN=1861007450
These books are a complete reference to the ASP.NET namespaces
for developers who are already familiar with using ASP.NET.
There is no trivial introductory material or useless .NET
hype and the presentation of the namespaces, in an easy-to use
alphabetical order ensures a user-friendly reference format.
We provide in-depth coverage of all the major ASP.NET classes,
giving you those real-world tips that the documentation doesn't
offer, and demonstrating complex techniques with simple
examples.
---
Message #4 by "Christopher Reed" <CReed@m...> on Tue, 20 Aug 2002 09:47:08 -0500
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Sam,
>Line 29: <tr>
>Line 30: <td colspan =2 class =NewsHead>
>Line 31: <h3><%#
DataBinder.Eval(Container.DataItem,"TextNews")%></h3>
>Line 32: </td>
>Line 33: </tr>
From what I can tell, line 31 needs to be in a control that is
contained by your DataList.
For example, it should like something like this:
<asp:DataList id="DataList1" RepeatLayout="Table"
RepeatDirection="Horizontal" RepeatColumns="5" GridLines="Both"
OnItemCreated="Item_Created" runat="server">
<HeaderTemplate>
News
</HeaderTemplate>
<ItemTemplate>
<%# DataBinder.Eval(Container.DataItem, "TextNews") %>
</ItemTemplate>
</asp:DataList>
Hope this helps!
Chris
Christopher Reed
Application Analyst
Web Development Coordinator
Information Technology
City of Lubbock
creed@m...
"The oxen are slow, but the earth is patient."
>>> sam@e... 8:42:03 AM 8/20/2002 >>>
Hi Chris thanks for getting back to me:
Here is the relevant code section (code behind)
#Region "Import Statements"
Imports System
Imports System.Web.UI
Imports System.Web.UI.Page
Imports System.Web.UI.WebControls
Imports System.Web.UI.HtmlControls
Imports System.Web.Mail
Imports System.Data
Imports System.Data.SqlClient
Imports System.Configuration
Imports System.Collections
Imports Microsoft.VisualBasic
Imports Microsoft.VisualBasic.DateAndTime
Imports System.ComponentModel
Imports System.Drawing
Imports System.IO
Imports System.Text
Imports System.Web
#End Region
Public Class SelectedRow
Inherits Page
Protected WithEvents DLProducts As DataList
Protected WithEvents lUnitOnOrder As Label
Protected WithEvents lUnitsOnOrder As Label
#Region "Connection String Declation"
Private sSqlCon As String
"server=XXXX;database=XXXX;uid=XX;pwd=XXXXX"
#End Region
#Region "Page Loads"
Public Sub Page_Load(ByVal Sender As Object, ByVal E As
EventArgs)
If Not IsPostBack Then
Bind()
End If
End Sub
#End Region
#Region "Bind Data"
Sub Bind()
Dim sqlCon As New SqlConnection(sSqlCon)
Dim sqlCmd As New StringBuilder()
sqlCmd.Append("select ProductName, UnitPrice,")
sqlCmd.Append("UnitsInStock,UnitsOnOrder,")
sqlCmd.Append("ProductID from Products")
Dim sda As New SqlDataAdapter(sqlCmd.ToString(), sqlCon)
Dim ds As New DataSet()
sda.Fill(ds, "products")
DLProducts.DataSource = ds.Tables("Products").DefaultView
DLProducts.DataBind()
End Sub
Public Sub DLProducts_ItemCommand(ByVal Sender As Object, ByVal
e As
DataListCommandEventArgs)
If e.CommandName = "select" Then
DLProducts.SelectedIndex = e.Item.ItemIndex
Bind()
End If
End Sub
#End Region
End Class
Message #5 by Sam Clohesy <sam@e...> on Tue, 20 Aug 2002 16:24:06 +0100
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Hi Chris-thanks again- I have this, for example:
<asp:DataList ID="DLProducts" CellPadding ="0" CellSpacing ="0" Width
="750"
BorderWidth ="1"
GridLines ="Both"
AlternatingItemStyle-BackColor="Tan"
HeaderStyle-CssClass ="productsHead"
Font-Size ="12"
RepeatColumns ="1"
OnItemCommand ="DLProducts_ItemCommand"
>
<ItemTemplate>
<table cellpadding =4 cellspacing =0 width =100>
<tr>
<td colspan ="2" class ="Productshead">
<h3><%# DataBinder.Eval(Container.DataItem,"ProductName") %></h3>
</td>
etc etc
It is probably staring me in the face!- thanks for your input
Sam
-----Original Message-----
From: Christopher Reed [mailto:CReed@m...]
Sent: 20 August 2002 15:47
To: ASP+
Subject: [aspx] RE: Error message
Sam,
>Line 29: <tr>
>Line 30: <td colspan =2 class =NewsHead>
>Line 31: <h3><%#
DataBinder.Eval(Container.DataItem,"TextNews")%></h3>
>Line 32: </td>
>Line 33: </tr>
From what I can tell, line 31 needs to be in a control that is
contained by your DataList.
For example, it should like something like this:
<asp:DataList id="DataList1" RepeatLayout="Table"
RepeatDirection="Horizontal" RepeatColumns="5" GridLines="Both"
OnItemCreated="Item_Created" runat="server">
<HeaderTemplate>
News
</HeaderTemplate>
<ItemTemplate>
<%# DataBinder.Eval(Container.DataItem, "TextNews") %>
</ItemTemplate>
</asp:DataList>
Hope this helps!
Chris
Christopher Reed
Application Analyst
Web Development Coordinator
Information Technology
City of Lubbock
creed@m...
"The oxen are slow, but the earth is patient."
>>> sam@e... 8:42:03 AM 8/20/2002 >>>
Hi Chris thanks for getting back to me:
Here is the relevant code section (code behind)
#Region "Import Statements"
Imports System
Imports System.Web.UI
Imports System.Web.UI.Page
Imports System.Web.UI.WebControls
Imports System.Web.UI.HtmlControls
Imports System.Web.Mail
Imports System.Data
Imports System.Data.SqlClient
Imports System.Configuration
Imports System.Collections
Imports Microsoft.VisualBasic
Imports Microsoft.VisualBasic.DateAndTime
Imports System.ComponentModel
Imports System.Drawing
Imports System.IO
Imports System.Text
Imports System.Web
#End Region
Public Class SelectedRow
Inherits Page
Protected WithEvents DLProducts As DataList
Protected WithEvents lUnitOnOrder As Label
Protected WithEvents lUnitsOnOrder As Label
#Region "Connection String Declation"
Private sSqlCon As String
"server=XXXX;database=XXXX;uid=XX;pwd=XXXXX"
#End Region
#Region "Page Loads"
Public Sub Page_Load(ByVal Sender As Object, ByVal E As
EventArgs)
If Not IsPostBack Then
Bind()
End If
End Sub
#End Region
#Region "Bind Data"
Sub Bind()
Dim sqlCon As New SqlConnection(sSqlCon)
Dim sqlCmd As New StringBuilder()
sqlCmd.Append("select ProductName, UnitPrice,")
sqlCmd.Append("UnitsInStock,UnitsOnOrder,")
sqlCmd.Append("ProductID from Products")
Dim sda As New SqlDataAdapter(sqlCmd.ToString(), sqlCon)
Dim ds As New DataSet()
sda.Fill(ds, "products")
DLProducts.DataSource = ds.Tables("Products").DefaultView
DLProducts.DataBind()
End Sub
Public Sub DLProducts_ItemCommand(ByVal Sender As Object, ByVal
e As
DataListCommandEventArgs)
If e.CommandName = "select" Then
DLProducts.SelectedIndex = e.Item.ItemIndex
Bind()
End If
End Sub
#End Region
End Class
---
ASP.NET 1.0 Namespace Reference with C#
http://www.wrox.com/acon11.asp?ISBN=1861007442
ASP.NET 1.0 Namespace Reference with VB.NET
http://www.wrox.com/acon11.asp?ISBN=1861007450
These books are a complete reference to the ASP.NET namespaces
for developers who are already familiar with using ASP.NET.
There is no trivial introductory material or useless .NET
hype and the presentation of the namespaces, in an easy-to use
alphabetical order ensures a user-friendly reference format.
We provide in-depth coverage of all the major ASP.NET classes,
giving you those real-world tips that the documentation doesn't
offer, and demonstrating complex techniques with simple
examples.
---
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