Blank Web Page

[student]

Hello all, could someone explain why I'm getting a blank web page when I run
start my code in a web browser? Here is the code:
Imports System.Data.Sql Client
Imports System.Data
Public Class WebForm1
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

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
'Create the data connection.
Dim sqlconnectConta ctMgmt As New SqlConnection _
("server=(local );database=Cont acts;Trusted_Co nnection=yes")
'Create a data adapter.
Dim sqladaptContact Mgmt As New _
SqlDataAdapter( "select * from Contacts", sqlconnectConta ctMgmt)
'Create a data set.
Dim dsContacts As New DataSet()
'Fill in the data set.
sqladaptContact Mgmt.Fill(dsCon tacts, "Contacts")
'Display the table in a data grid using data binding.
Dim DataGrid1 As New DataGrid()
DataGrid1.DataS ource = dsContacts.Tabl es("Contacts"). DefaultView
DataGrid1.DataB ind()

End Sub
End Class

[Scott Allen]

This line of code:

Dim DataGrid1 As New DataGrid()

is creating a new DataGrid which it goes on to bind the data to. Unfortunately,
if you just create a grid in this fashion it is not attached to the web form.
A web form has to 'know' about a DataGrid in order to display the grid, and
just creating a grid like this doesn't let the page know about the grid.

Are you using Visual Studio.NET? If so, you'll want to drag and drop a DataGrid
control onto the web form. Visual Studio will put a grid into the form and
give you a variable in the code behind to match. All you'll need to do then
is set the DataSource property and call DataBind (like you have below).

Making sense?

--
Scott
http://www.OdeToCode.com/blogs/scott/

Hello all, could someone explain why I'm getting a blank web page when
I run
start my code in a web browser? Here is the code:
Imports System.Data.Sql Client
Imports System.Data
Public Class WebForm1
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

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
'Create the data connection.
Dim sqlconnectConta ctMgmt As New SqlConnection _
("server=(local );database=Cont acts;Trusted_Co nnection=yes")
'Create a data adapter.
Dim sqladaptContact Mgmt As New _
SqlDataAdapter( "select * from Contacts",
sqlconnectConta ctMgmt)
'Create a data set.
Dim dsContacts As New DataSet()
'Fill in the data set.
sqladaptContact Mgmt.Fill(dsCon tacts, "Contacts")
'Display the table in a data grid using data binding.
Dim DataGrid1 As New DataGrid()
DataGrid1.DataS ource =
dsContacts.Tabl es("Contacts"). DefaultView
DataGrid1.DataB ind()
End Sub

End Class