Retrieveing TextBox.Text in a WebForm

[martin rydman]

Hi all!

I've never done any ASP, but the promise of Web Forms got me started. I'm
banging my head against something so trivial I almost hesitate to post it
here...
Anyway, I have two Web Forms, and in WebForm2 I want to get the contents
of 5 textboxes into a structure, pass it to a businesscomponent, and the
pass the structure back to the first WebForm:

Private Sub Button1_Click(...)
Dim MyPubs As New BusinessComponent.bus_Publishers()

CurrentPub.pub_id = TextBox1.Text
CurrentPub.pub_name = TextBox2.Text
CurrentPub.city = TextBox3.Text
CurrentPub.state = TextBox4.Text
CurrentPub.country = TextBox5.Text

MyPubs.UpdatePublisher(CurrentPub)
Session("CurrentPub") = CurrentPub
Response.Redirect("webform1.aspx")
End Sub

The BusinessComponent is tested and true, and all tests I've tried show that
even though I've entered new text in the textboxes, the value I get when
retrieving it like this is the value they got in the Page_Load event, not
the value entered by the user.

I guess I'm missing something fundamental here... response... request...
whatever...

uh...help, please!

TIA

/Martin

[Jacob Grass]

note: I am new to this stuff as well. . .

I think if you set the ViewState of your page to true, you will be able to
get the values. The problem is that whenever an event fires, like
ButtonClick, the pageload event fires first. So, your values are getting
reset. . . You may also try setting the values of your textboxes in the
pageload event from inside an If...Then like so:

If Not IsPostBack Then
'set values
End If

HTH

Jacob

"martin rydman" <martin@aprire.se> wrote in message
news:3bbdc7e1$1@news.devx.com...
>
> Hi all!
>
> I've never done any ASP, but the promise of Web Forms got me started. I'm
> banging my head against something so trivial I almost hesitate to post it
> here...
> Anyway, I have two Web Forms, and in WebForm2 I want to get the contents
> of 5 textboxes into a structure, pass it to a businesscomponent, and the
> pass the structure back to the first WebForm:
>
> Private Sub Button1_Click(...)
> Dim MyPubs As New BusinessComponent.bus_Publishers()
>
> CurrentPub.pub_id = TextBox1.Text
> CurrentPub.pub_name = TextBox2.Text
> CurrentPub.city = TextBox3.Text
> CurrentPub.state = TextBox4.Text
> CurrentPub.country = TextBox5.Text
>
> MyPubs.UpdatePublisher(CurrentPub)
> Session("CurrentPub") = CurrentPub
> Response.Redirect("webform1.aspx")
> End Sub
>
> The BusinessComponent is tested and true, and all tests I've tried show
that
> even though I've entered new text in the textboxes, the value I get when
> retrieving it like this is the value they got in the Page_Load event, not
> the value entered by the user.
>
> I guess I'm missing something fundamental here... response... request...
> whatever...
>
> uh...help, please!
>
> TIA
>
> /Martin

[martin rydman]

Hi!

I just discovered the use of the IsPostBack property.

For those of you who, like I, stumble into this like a three-year-old, this
is what aparently happens:

Everytime an event occurs (typically click) the whole page is posted to the
server for processing, and then immediately posted back. I had code in my
Page_Load to initialize my textboxes, and, as far as I can see, the Page_Load
event is somehow called *again* before the Button1_Click-event, because when
I enclosed the initialization in an if-statement, the Click-event works:

If Not Page.IsPostBack Then
TextBox1.Text = CurrentPub.pub_id
TextBox2.Text = CurrentPub.pub_name
TextBox3.Text = CurrentPub.city
TextBox4.Text = CurrentPub.state
TextBox5.Text = CurrentPub.country
End If


If someone with some insight into this could confirm/correct/expand on this,
I'd be really greatful!

TIA!

/Martin

"martin rydman" <martin@aprire.se> wrote:
>
>Hi all!
>
>I've never done any ASP, but the promise of Web Forms got me started. I'm
>banging my head against something so trivial I almost hesitate to post it
>here...
>Anyway, I have two Web Forms, and in WebForm2 I want to get the contents
>of 5 textboxes into a structure, pass it to a businesscomponent, and the
>pass the structure back to the first WebForm:
>
>Private Sub Button1_Click(...)
> Dim MyPubs As New BusinessComponent.bus_Publishers()
>
> CurrentPub.pub_id = TextBox1.Text
> CurrentPub.pub_name = TextBox2.Text
> CurrentPub.city = TextBox3.Text
> CurrentPub.state = TextBox4.Text
> CurrentPub.country = TextBox5.Text
>
> MyPubs.UpdatePublisher(CurrentPub)
> Session("CurrentPub") = CurrentPub
> Response.Redirect("webform1.aspx")
>End Sub
>
>The BusinessComponent is tested and true, and all tests I've tried show
that
>even though I've entered new text in the textboxes, the value I get when
>retrieving it like this is the value they got in the Page_Load event, not
>the value entered by the user.
>
>I guess I'm missing something fundamental here... response... request...
>whatever...
>
>uh...help, please!
>
>TIA
>
>/Martin

[martin rydman]

Hi Jacob!

As you may notice, I discovered much the same and posted it while your post
arrived. Well, you confirmed my own findings... thanks!

/Martin