Re: Dynamic Controls - Still!

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From: Coleen (coleenholley_at_yaho.com)
Date: 11/12/04 

Date: Fri, 12 Nov 2004 14:44:56 -0800

I've got another page where the same code works just fine, but the labels
and textboxes are not nestled inside of any sort of a table. I am checking
for postback = false in the page that works. I tried to create my page in
the exact same manner as the page that does work, and it is still not
triggering the SelectedIndexChanged vent. I tried changing it to work when
the postback = true, but am still having trouble. Argh! This is not
logical! Thanks for your example I will try it and let you know what
happens.

I appreciate your time & effort.

Coleen

"Jim Cheshire [MSFT]" <jamesche@online.microsoft.com> wrote in message
news:yP06dJQyEHA.2544@cpmsftngxa10.phx.gbl...
> Coleen,
>
> I don't really have an example. You just drag and drop the panel on the
> page and then name it. A panel derives from Control just like the Page
> object. Therefore, it has a Controls collection just like a Page.
>
> I just tried what you're doing and it works fine for me. Here's what I
did:
>
> 1. Created a new HTML table.
> 2. Set cell TD1 to runat server.
> 3. Added this code to Page_Load:
>
> Dim ddl As DropDownList = New DropDownList
>
> With ddl
> .Items.Add("Item1")
> .Items.Add("Item2")
> .AutoPostBack = True
> End With
>
> AddHandler ddl.SelectedIndexChanged, AddressOf Me.ddl_SelectedIndexChanged
>
> I then added a subprocedure like this:
>
> Private Sub ddl_OnSelectedIndexChanged(ByVal sender As Object, ByVal e As
> System.EventArgs)
> ' do nothing...
> End Sub
>
> When I set a breakpoint on that event, it hits it fine. Is it possible
> that you haven't set the AutoPostBack property?
>
> Jim Cheshire [MSFT]
> MCP+I, MCSE, MCSD, MCDBA
> ASP.NET Developer Support
> jamesche@online.microsoft.com
>
> This post is provided "AS-IS" with no warranties and confers no rights.
>
>
>
> --------------------
> | From: "Coleen" <coleenholley@yaho.com>
> | References: <eDBQmgOyEHA.2624@TK2MSFTNGP11.phx.gbl>
> <P3Z1a3OyEHA.3820@cpmsftngxa10.phx.gbl>
> | Subject: Re: Dynamic Controls - Still!
> | Date: Fri, 12 Nov 2004 11:41:43 -0800
> | Lines: 129
> | X-Priority: 3
> | X-MSMail-Priority: Normal
> | X-Newsreader: Microsoft Outlook Express 6.00.2800.1437
> | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441
> | Message-ID: <u8iD6#OyEHA.3320@TK2MSFTNGP10.phx.gbl>
> | Newsgroups: microsoft.public.dotnet.framework.aspnet.buildingcontrols
> | NNTP-Posting-Host: virt27212.virtual.state.nv.us 167.154.27.212
> | Path:
>
cpmsftngxa10.phx.gbl!TK2MSFTFEED01.phx.gbl!TK2MSFTNGP08.phx.gbl!TK2MSFTNGP10
> phx.gbl
> | Xref: cpmsftngxa10.phx.gbl
> microsoft.public.dotnet.framework.aspnet.buildingcontrols:11667
> | X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet.buildingcontrols
> |
> | Yes. Depending on the payment type, I need the labels and associated
> | textboxes to be dynamically populated. I.e., if it is a credit card, I
> need
> | them to enter credit card data, if it's ant Electronic Funds transfer, a
> | different set and so on. I want these to populate according to what is
> | selected from the Dropdownlistbox, but when I place the ddl inside of a
> | table (either HTML or ASPX) the SelectedIndexChanged event does not
> trigger.
> | I am fairly new to VB .Net, but fairly adept at VB6. I am not familiar
> with
> | Panels. If you have a site or example that explains them better than
the
> | .Net Help, I'd really appreciate it. I REALLY appreciate all of your
> help &
> | responses :-)
> |
> | Coleen
> |
> | "Jim Cheshire [MSFT]" <jamesche@online.microsoft.com> wrote in message
> | news:P3Z1a3OyEHA.3820@cpmsftngxa10.phx.gbl...
> | > Coleen,
> | >
> | > Are you dynamically creating a different set of controls based upon
some
> | > condition? The reason I ask is that it might be a lot easier to just
> add
> | a
> | > panel and change the Visible property.
> | >
> | > Jim Cheshire [MSFT]
> | > MCP+I, MCSE, MCSD, MCDBA
> | > ASP.NET Developer Support
> | > jamesche@online.microsoft.com
> | >
> | > This post is provided "AS-IS" with no warranties and confers no
rights.
> | >
> | >
> | > --------------------
> | > | From: "Coleen" <coleenholley@yaho.com>
> | > | Subject: Dynamic Controls - Still!
> | > | Date: Fri, 12 Nov 2004 10:47:28 -0800
> | > | Lines: 61
> | > | X-Priority: 3
> | > | X-MSMail-Priority: Normal
> | > | X-Newsreader: Microsoft Outlook Express 6.00.2800.1437
> | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441
> | > | Message-ID: <eDBQmgOyEHA.2624@TK2MSFTNGP11.phx.gbl>
> | > | Newsgroups:
microsoft.public.dotnet.framework.aspnet.buildingcontrols
> | > | NNTP-Posting-Host: virt27212.virtual.state.nv.us 167.154.27.212
> | > | Path:
> | >
> |
>
cpmsftngxa10.phx.gbl!TK2MSFTNGXA01.phx.gbl!TK2MSFTNGP08.phx.gbl!TK2MSFTNGP11
> | > phx.gbl
> | > | Xref: cpmsftngxa10.phx.gbl
> | > microsoft.public.dotnet.framework.aspnet.buildingcontrols:11664
> | > | X-Tomcat-NG:
microsoft.public.dotnet.framework.aspnet.buildingcontrols
> | > |
> | > | Hi Jim Thanks for your help.
> | > |
> | > | I changed the table from an ASP.Net table to an HTML table. I am
till
> | > | having the problem of the control placed inside the table not
> triggering
> | > the
> | > | on SelectedIndexChanged event. To be honest, I don't have a clue
what
> | you
> | > | are talking about as to containers and panels - I'm sorry. Can you
> | please
> | > | send me a link to an example on how to do this? So far, everything
> I've
> | > | tried has not worked.
> | > |
> | > | What I have to have happen is the on the dropdown selection, I need
a
> | set
> | > of
> | > | labels and text boxes to appear to allow the user to enter data
> | pertaining
> | > | to the payment type. I wanted to use a table for alignment
purposes,
> | but
> | > I
> | > | don't have to. I DO have to dynamically have the text in the labels
> | > change,
> | > | and I DO have to have the on SelectedItemChanged or
> SelectedIndexChanged
> | > | event be triggered. Do you have any suggestions, links to examples,
> | etc.
> | > | that you could point me to? Thanks so very much for your help :-)
> | > |
> | > | Coleen
> | > |
> | > | From: Jim Cheshire jamesche@online.microsoft.com
> | > |
> | > | Coleen,
> | > |
> | > | It doesn't matter. The panel is added during design-time and you
can
> | put
> | > | it anywhere. It's simply a placeholder for the dynamic controls
that
> | will
> | > | be added later.
> | > |
> | > | [MSFT]
> | > | MCP+I, MCSE, MCSD, MCDBA
> | > | ASP.NET Developer Support
> | > | jamesche@online.microsoft.com
> | > |
> | > | This post is provided "AS-IS" with no warranties and confers no
> rights.
> | > |
> | > | --------------------
> | > | From: "Coleen" <coleenholley@yaho.com>
> | > |
> | > | I guess I'm a little confused. Does the table get placed inside
the
> | > | container? I've never used containers before, so I honestly don't
> have
> | a
> | > | clue where to start coding..."just add the controls to the Controls
> | > | collection of pnlControls" is the control created and then the
entire
> | > | table placed inside, or is the container placed inside the table?
> | > |
> | > |
> | > | "Jim Cheshire [MSFT]" <jamesche@online.microsoft.com> wrote in
> message
> | > | news:ilB6bA4xEHA.3956@cpmsftngxa10.phx.gbl...
> | > | Coleen,
> | > |
> | > | A table is fine. The thing is that you need to add your dynamic
> | > | controls to a container other than the page. In other words,
suppose
> | you
> | > | were
> | > | adding them to a Panel control called pnlControls. You would just
> add
> | > | the controls to the Controls collection of pnlControls.
> | > |
> | > | pnlControls.Controls.Add(myControl)
> | > |
> | > | That will prevent the controls from getting added outside of the
> <form
> | > | tag and causing a problem.
> | > | Jim Cheshire [MSFT]
> | > |
> | > |
> | > |
> | >
> |
> |
> |
>

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