Created a dataview using dataset in application_start event of Global.asax.vb file. I'm using this dataview to populate a data grid in the page_load event of my aspx file. But no result is displayed while running the application. No error shown.

What could be the reason? Can anyone throw some light....?

Thanks,
Apry

Can you post your code?

Can you get anything asp.net to run on your machine?

Hello,

DataView could have no rows. Are you catching errors, and if so, how are you catching errors?

Brian

Hi
Here is my code written in Global.asax.vb file
Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
        ' Fires when the application is started
        Dim ds1 As New DataSet()
        Dim FS As FileStream
        Dim Reader As StreamReader
        FS = New FileStream(Server.MapPath("XMLData.xml"), FileMode.Open, FileAccess.Read)
        Reader = New StreamReader(FS)
        ds1.ReadXml(Reader)
        FS.Close()
        Dim view As DataView
        view = New DataView(ds1.Tables(0))
        Application("Source") = view
    End Sub

In my aspx file
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        'to use of application state to read a dataset in Application_Start
        Response.Write("Testing")
        Dim source As DataView
        source = Application("Source")
        MyDataGrid.DataSource = source
        MyDataGrid.DataBind()
    End Sub

Data is available in the XML file.

Thanks,
Apry

Hey,

For testing, can you copy/paste the code into the Page_Load and see if it works from there any better?

Brian

Brian,
I tested it in the form load and it works fine.
I think the problem is assigning dataview (application_start) in the form load
source = Application("Source")

Apry

Hello,

The source = Application("Source") shouldn't be a problem, as you can do this. To ensure you are working with a DataView, you can CType it to a DataView to make sure you are working with the correct type of object:

source = CType(Application("Source"), DataView)

To make sure you are getting rows back, in Application_Start, can you do:

Response.Write("Row Count: " & ds1.Tables(0).Rows.Count)
Response.Write("View Count: " & view.Count)

at the end, to make sure that the records are being brought back?

Thanks,

Brian

Brian,
Thanks for the help.
Surprisingly no result for the row count. Even the text is not displaying.
This means no action is triggering in the application_start event of global.asax.bv file

What could be the reason???

Apry