ASP.NET

15-Jun-07 3:44

I do initialize some controls on Page_Load.

Sub Page_Load(ByVal Sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
SQLconn.Open()
Dim SelectCmd1 As New SqlCommand("SP1", SQLconn)
SelectCmd1.CommandType = CommandType.StoredProcedure
Dim result1 As Integer
Dim myDataReader1 As SqlDataReader
myDataReader1 = SelectCmd1.ExecuteReader()
myDataReader1.Read()
result1 = myDataReader1.GetInt32(0)
SQLconn.Close()

ChangeButton(result1)
End Sub

Sub ChangeButton(ByVal Status As Integer)
If Status = -1 Then
Label1.Text = "ON"
OnOff1.Style.Value = "background-image: url(../ImgContr/1.png);"
Else
Label1.Text = "OFF"
OnOff1.Style.Value = "background-image: url(../ImgContr/2.png);"
End If
End Sub

I moved the code from Page_Load to MyRefresh bc I want to call this code fom other events too:

Sub Page_Load()

If Not Page.IsPostBack Then
MyRefresh()
End If

End Sub

Sub MyRefresh()
SQLconn.Open()
Dim SelectCmd1 As New SqlCommand("SP1", SQLconn)
SelectCmd1.CommandType = CommandType.StoredProcedure
Dim result1 As Integer
Dim myDataReader1 As SqlDataReader
myDataReader1 = SelectCmd1.ExecuteReader()
myDataReader1.Read()
result1 = myDataReader1.GetInt32(0)
SQLconn.Close()

ChangeButton(result1)
End Sub

I don't get any errors but the controls get no values from the database. Something is missing but I don't know what. D'Oh! | :doh:

Thanks

-- modified at 10:05 Friday 15th June, 2007

kubben15-Jun-07 3:49

15-Jun-07 3:49

Have you tried debuging the code? What is the value that you are passing into the changebutton method? when you call the stored procedure manually do you get what you are expecting?

I would guess that your call to the stored procedure is not returning what you are expecting. Try debugging the code and see if that helps you figure it out.

Ben

kallileo15-Jun-07 4:03

15-Jun-07 4:03

I'm absolutely sure that the SP is correct bc when I have the content of the content of MyRefresh() in the Page_Load it works without any problems.

But when I moved the code to MyRefresh() and call it from Page_Load it doesn't work

Sub Page_Load()
If Not Page.IsPostBack Then
Refresh()
End If
End Sub

kubben15-Jun-07 4:15

15-Jun-07 4:15

Well, based on the code you posted the only difference I can see is in the new code you are checking If Not Page.IsPostback

This seems like the correct thing to do, but it doesn't seem you did that when you weren't using the MyRefresh() method. So I guess you could try removing that and see if it works. I still think you should be able to step through the program and see if the code is getting called correctly.

Ben

kallileo15-Jun-07 5:15

15-Jun-07 5:15

If Not Page.IsPostback has no effect...but I think I found something.

Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load

SQLconn.Open()
Dim SelectCmd1 As New SqlCommand("SP1", SQLconn)
SelectCmd1.CommandType = CommandType.StoredProcedure
Dim result1 As Integer
Dim myDataReader1 As SqlDataReader
myDataReader1 = SelectCmd1.ExecuteReader()
myDataReader1.Read()
result1 = myDataReader1.GetInt32(0)
SQLconn.Close()
ChangeButton1(result1)

End Sub

"Handles MyBase.Load" is the key....when I remove this I have the same as in the MyRefresh().

I had to modified it like this:

Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Not Page.IsPostBack Then
Refresh()
End If
End Sub

Sub Refresh()
SQLconn.Open()
Dim SelectCmd1 As New SqlCommand("SP1", SQLconn)
SelectCmd1.CommandType = CommandType.StoredProcedure
Dim result1 As Integer
Dim myDataReader1 As SqlDataReader
myDataReader1 = SelectCmd1.ExecuteReader()
myDataReader1.Read()
result1 = myDataReader1.GetInt32(0)
SQLconn.Close()
ChangeButton1(result1)

End Sub

Why is Handles MyBase.Load so important???

kubben15-Jun-07 5:19

15-Jun-07 5:19

Without it your load event doesn't fire. That is how your code behind methods get linked into events. Glad you figured it out.

Ben

kallileo15-Jun-07 5:35

HttpContext.Request.Url Problem

15-Jun-07 5:35

Thank you..

but I haven't finished yet..

Jkirt15-Jun-07 3:40

15-Jun-07 3:40

Hi,

This has got me really baffled. When I run Dim url As String = HttpContext.Current.Request.Url.AbsolutePath.ToLower from Application_beginRequest in Global.asax with server that ships with Visual Web Developer everything works as expected.
However, today when I tried to move all code onto IIS server this just doesn't return the same URL!

On localhost (Visual Web Developer), variable url is /sandbox/my/home/page, but on IIS it returns /sandbox/index.aspx.

Yes, this is another HttpContext.RewritePath application which is why I need to know what the user types as a URL event though a 404 error is expected.

Anyone have any idea why the url would be different, or know of anything I could possibly be doing wrong?

Any help is greatly appreciated.

Thanks,

Jason.

kubben15-Jun-07 3:51

15-Jun-07 3:51

This is just a guess, but with VS you are telling it what page to start on. With IIS when you enter the url it uses your IIS settings to figure out what the default page should be. index.aspx sounds like the default page you set up in IIS. So if you want a call to the basic url to go to a different default page you need to change it in IIS manager.

Hope that helps.
Ben

Jkirt15-Jun-07 4:01

15-Jun-07 4:01

Ben,

Thank you for the prompt reply. I have enabled the default content page in IIS and it's pointing to index.aspx. I do want the default page to be index.aspx.

The thing is, I've designed user friendly urls but they won't work because IIS is trying to go directly to them but they are virtual, so they don't exist. I'm using HttpContext.RewritePath to rewrite the urls.

Jason.

kubben15-Jun-07 4:12

15-Jun-07 4:12

So if the user types in the base url with no page, it will go to your default page. So what is your problem? I have done much RewritePath stuff, but I have done some http handler stuff. Are you sure your handler is set up correctly so that it is getting called?

Ben

Jkirt15-Jun-07 4:59

15-Jun-07 4:59

I think you might be misunderstanding my problem. Let's say my root directory has only the following files:

* index.aspx
* web.config
* global.asax

When the user visits, for example: http://www.mysite.com/tutorials/tute/1

The global.asax file should be able to grab this URL using HttpContext.Current.Request.Url.AbsolutePath.ToLower method and I will use this string to formulate a RewritePath to index.aspx?a=tutorials&tute=1.

As you can see, the directories tutorials, tute and 01 don't exist, so there is no index.aspx file to refer to.

My problem is, IIS and HttpContext.AbsolutePath isn't giving me http://www.mysite.com/tutorials/tute/1 or any of the variables. But the strange thing is, this is all working on localhost.

So it makes me wonder if it's something to do with IIS, or if there is another way to get the typed URL.

Jason.

kubben15-Jun-07 5:13

15-Jun-07 5:13

Well, if IIS is trying to correct the url and re-direct it to your default page, then you there is probably only one thing you can do. Turn off the default page in IIS and then you will have to write an http handler module for the 404 and properly redirect them. At least that is what I would try to do.

Ben

Jkirt15-Jun-07 5:52