Converting html string to object

[Wouter vanEck]

Hi,

I need to find a way to read a html type string from a database and add it
to a placeholder control on the page and then I need to be able to populate
the fields that were in that html string at run time.

The html string may look like this "<table><tr><td >First Name</td><td><input
name=_firstname runat=server id=_firstname ....></td></tr></table>"

Is there a way to convert this string into an object which you could access
like _firstname.text or _firstname.inne rhtml, any thing to being able to set
the value would be great.

Is there anyone who knows about an article or has an idea how to go about
doing this??

Thanks,

Wouter

[vMike]

Re: Converting html string to object


"Wouter vanEck" <wouter.vaneck@ smart-quotes.com> wrote in message
news:uPu7bVO9EH A.2196@TK2MSFTN GP11.phx.gbl...[color=blue]
> Hi,
>
> I need to find a way to read a html type string from a database and add it
> to a placeholder control on the page and then I need to be able to[/color]
populate[color=blue]
> the fields that were in that html string at run time.
>
> The html string may look like this "<table><tr><td >First[/color]
Name</td><td><input[color=blue]
> name=_firstname runat=server id=_firstname ....></td></tr></table>"
>
> Is there a way to convert this string into an object which you could[/color]
access[color=blue]
> like _firstname.text or _firstname.inne rhtml, any thing to being able to[/color]
set[color=blue]
> the value would be great.
>
> Is there anyone who knows about an article or has an idea how to go about
> doing this??
>
> Thanks,
>
> Wouter[/color]
You can put a placeholder (say it is called plc1) on a page and then in code
do the following
plc1.controls.a dd(New literalcontrol( yourhtmltext))

Then on postback get the request.form("_ firstname") . Take the runat out of
the hmtltext

[Wouter vanEck]

Re: Converting html string to object

Hi,

Thanks for your quick response but I was actually trying to push a value to
the field. The reading part is easy, just like you said, but I need to be
able to populate the field after a postback.

Wouter

"vMike" <MichZaelY.GeZo rgeY@noZorY.geZ waYrrenY.com> wrote in message
news:crmk8h$j02 $1@ngspool-d02.news.aol.co m...[color=blue]
>
> "Wouter vanEck" <wouter.vaneck@ smart-quotes.com> wrote in message
> news:uPu7bVO9EH A.2196@TK2MSFTN GP11.phx.gbl...[color=green]
> > Hi,
> >
> > I need to find a way to read a html type string from a database and add[/color][/color]
it[color=blue][color=green]
> > to a placeholder control on the page and then I need to be able to[/color]
> populate[color=green]
> > the fields that were in that html string at run time.
> >
> > The html string may look like this "<table><tr><td >First[/color]
> Name</td><td><input[color=green]
> > name=_firstname runat=server id=_firstname ....></td></tr></table>"
> >
> > Is there a way to convert this string into an object which you could[/color]
> access[color=green]
> > like _firstname.text or _firstname.inne rhtml, any thing to being able to[/color]
> set[color=green]
> > the value would be great.
> >
> > Is there anyone who knows about an article or has an idea how to go[/color][/color]
about[color=blue][color=green]
> > doing this??
> >
> > Thanks,
> >
> > Wouter[/color]
> You can put a placeholder (say it is called plc1) on a page and then in[/color]
code[color=blue]
> do the following
> plc1.controls.a dd(New literalcontrol( yourhtmltext))
>
> Then on postback get the request.form("_ firstname") . Take the runat out[/color]
of[color=blue]
> the hmtltext
>
>[/color]

[John Saunders]

Re: Converting html string to object

"Wouter vanEck" <wouter.vaneck@ smart-quotes.com> wrote in message
news:uPu7bVO9EH A.2196@TK2MSFTN GP11.phx.gbl...[color=blue]
> Hi,
>
> I need to find a way to read a html type string from a database and add it
> to a placeholder control on the page and then I need to be able to
> populate
> the fields that were in that html string at run time.
>
> The html string may look like this "<table><tr><td >First
> Name</td><td><input
> name=_firstname runat=server id=_firstname ....></td></tr></table>"
>
> Is there a way to convert this string into an object which you could
> access
> like _firstname.text or _firstname.inne rhtml, any thing to being able to
> set
> the value would be great.
>
> Is there anyone who knows about an article or has an idea how to go about
> doing this??[/color]

You can't do this directly. If you can turn the database contents into a
user control (.ascx file) on disk, then you can load it with LoadControl.

Other than that, you'll have to parse the HTML string by yourself, using
regular expressions or something.

This appears to have been designed on the assumption that you can turn a
string into a set of server-side controls. If this turns out not to be the
case, and if you can't do the user control trick, then perhaps you could
change design a bit. If the string in the database were a bit easier to
parse for "fields", you'd have better luck with it. For instance, it could
contain strings like %fieldName%. That's pretty easy to parse for. It's a
lot easier to parse for than runat="server" id="_firstname" .

John Saunders

[Wouter vanEck]

Re: Converting html string to object

Hi John,

It is not the answer I was hoping for, I am currently trying to work with
rendering the string to the page.. same result unless I am doing it wrong.

Wouter

"John Saunders" <johnwsaundersi ii at hotmail.com> wrote in message
news:OtPFNhO9EH A.1524@TK2MSFTN GP09.phx.gbl...[color=blue]
> "Wouter vanEck" <wouter.vaneck@ smart-quotes.com> wrote in message
> news:uPu7bVO9EH A.2196@TK2MSFTN GP11.phx.gbl...[color=green]
> > Hi,
> >
> > I need to find a way to read a html type string from a database and add[/color][/color]
it[color=blue][color=green]
> > to a placeholder control on the page and then I need to be able to
> > populate
> > the fields that were in that html string at run time.
> >
> > The html string may look like this "<table><tr><td >First
> > Name</td><td><input
> > name=_firstname runat=server id=_firstname ....></td></tr></table>"
> >
> > Is there a way to convert this string into an object which you could
> > access
> > like _firstname.text or _firstname.inne rhtml, any thing to being able to
> > set
> > the value would be great.
> >
> > Is there anyone who knows about an article or has an idea how to go[/color][/color]
about[color=blue][color=green]
> > doing this??[/color]
>
> You can't do this directly. If you can turn the database contents into a
> user control (.ascx file) on disk, then you can load it with LoadControl.
>
> Other than that, you'll have to parse the HTML string by yourself, using
> regular expressions or something.
>
> This appears to have been designed on the assumption that you can turn a
> string into a set of server-side controls. If this turns out not to be the
> case, and if you can't do the user control trick, then perhaps you could
> change design a bit. If the string in the database were a bit easier to
> parse for "fields", you'd have better luck with it. For instance, it could
> contain strings like %fieldName%. That's pretty easy to parse for. It's a
> lot easier to parse for than runat="server" id="_firstname" .
>
> John Saunders
>
>[/color]

[vMike]

Re: Converting html string to object


"Wouter vanEck" <wouter.vaneck@ smart-quotes.com> wrote in message
news:%23JMecdO9 EHA.3124@TK2MSF TNGP11.phx.gbl. ..[color=blue]
> Hi,
>
> Thanks for your quick response but I was actually trying to push a value[/color]
to[color=blue]
> the field. The reading part is easy, just like you said, but I need to be
> able to populate the field after a postback.
>[/color]
If that is you only option then you could probably override the render of
the placeholder and do a some kind of string replace before output, but you
might want to consider some other approach.

[John Saunders]

Re: Converting html string to object

"Wouter vanEck" <wouter.vaneck@ smart-quotes.com> wrote in message
news:ufnZkuO9EH A.3236@TK2MSFTN GP15.phx.gbl...[color=blue]
> Hi John,
>
> It is not the answer I was hoping for, I am currently trying to work with
> rendering the string to the page.. same result unless I am doing it wrong.[/color]

Are you aware that the runat="server" in these controls is meaningless?

John Saunders

[Wouter vanEck]

Re: Converting html string to object

:-)

Now I do...



"John Saunders" <johnwsaundersi ii at hotmail.com> wrote in message
news:OKP4c0O9EH A.3756@TK2MSFTN GP14.phx.gbl...[color=blue]
> "Wouter vanEck" <wouter.vaneck@ smart-quotes.com> wrote in message
> news:ufnZkuO9EH A.3236@TK2MSFTN GP15.phx.gbl...[color=green]
> > Hi John,
> >
> > It is not the answer I was hoping for, I am currently trying to work[/color][/color]
with[color=blue][color=green]
> > rendering the string to the page.. same result unless I am doing it[/color][/color]
wrong.[color=blue]
>
> Are you aware that the runat="server" in these controls is meaningless?
>
> John Saunders
>
>[/color]

[vMike]

Re: Converting html string to object


"Wouter vanEck" <wouter.vaneck@ smart-quotes.com> wrote in message
news:uPu7bVO9EH A.2196@TK2MSFTN GP11.phx.gbl...[color=blue]
> Hi,
>
> I need to find a way to read a html type string from a database and add it
> to a placeholder control on the page and then I need to be able to[/color]
populate[color=blue]
> the fields that were in that html string at run time.
>
> The html string may look like this "<table><tr><td >First[/color]
Name</td><td><input[color=blue]
> name=_firstname runat=server id=_firstname ....></td></tr></table>"
>
> Is there a way to convert this string into an object which you could[/color]
access[color=blue]
> like _firstname.text or _firstname.inne rhtml, any thing to being able to[/color]
set[color=blue]
> the value would be great.
>
> Is there anyone who knows about an article or has an idea how to go about
> doing this??
>
> Thanks,
>[/color]
Actual something like this might work for you. plc1 is a placeholder
control.


dim strtext as string = "<table><tr><td >First Name</td><td><input
runat='server' id='_firstname' ></td></tr></table>"
dim ctrl as control = parsecontrol(st rtext)
ctrl.id = "ctrl1"
dim ctrl2 as htmlinputcontro l = ctype(ctrl.cont rols(1),htmlcon trol)
ctrl2.value = "yourvaluef or input box"
plc1.controls.a dd(ctrl)

[Roger Helliwell]

Re: Converting html string to object

On Fri, 7 Jan 2005 11:18:14 -0700 in
microsoft.publi c.dotnet.framew ork.aspnet, "Wouter vanEck"
<wouter.vaneck@ smart-quotes.com> wrote:
[color=blue]
>Hi,
>
>I need to find a way to read a html type string from a database and add it
>to a placeholder control on the page and then I need to be able to populate
>the fields that were in that html string at run time.
>
>The html string may look like this "<table><tr><td >First Name</td><td><input
>name=_firstnam e runat=server id=_firstname ....></td></tr></table>"
>
>Is there a way to convert this string into an object which you could access
>like _firstname.text or _firstname.inne rhtml, any thing to being able to set
>the value would be great.
>
>Is there anyone who knows about an article or has an idea how to go about
>doing this??
>
>Thanks,
>
>Wouter
>[/color]

Hi Wouter,

Not sure off hand how to convert your string into an object, but you
can easily convert your string into a control like so:

string sSomeHtmlString = get string from database();
Control ctrl = Page.ParseContr ol(sSomeHtmlStr ing); // Create control
Form1.Controls. Add(ctrl); // Add control to the Form

During postbacks, using FindControl("_f irstname") to get at individual
values. Likewise you could also set each value as needed.

Hopefully this is what you're looking for.
Roger

[Wouter vanEck]

Re: Converting html string to object

Hi Roger,

Excellent!!! Works like a charm.

Wouter

"Roger Helliwell" <rhelliwell@tel us.net> wrote in message
news:tt3ut0tcd8 0pap4k9nvblmsga tcr6tpd01@4ax.c om...[color=blue]
> On Fri, 7 Jan 2005 11:18:14 -0700 in
> microsoft.publi c.dotnet.framew ork.aspnet, "Wouter vanEck"
> <wouter.vaneck@ smart-quotes.com> wrote:
>[color=green]
> >Hi,
> >
> >I need to find a way to read a html type string from a database and add[/color][/color]
it[color=blue][color=green]
> >to a placeholder control on the page and then I need to be able to[/color][/color]
populate[color=blue][color=green]
> >the fields that were in that html string at run time.
> >
> >The html string may look like this "<table><tr><td >First[/color][/color]
Name</td><td><input[color=blue][color=green]
> >name=_firstnam e runat=server id=_firstname ....></td></tr></table>"
> >
> >Is there a way to convert this string into an object which you could[/color][/color]
access[color=blue][color=green]
> >like _firstname.text or _firstname.inne rhtml, any thing to being able to[/color][/color]
set[color=blue][color=green]
> >the value would be great.
> >
> >Is there anyone who knows about an article or has an idea how to go about
> >doing this??
> >
> >Thanks,
> >
> >Wouter
> >[/color]
>
> Hi Wouter,
>
> Not sure off hand how to convert your string into an object, but you
> can easily convert your string into a control like so:
>
> string sSomeHtmlString = get string from database();
> Control ctrl = Page.ParseContr ol(sSomeHtmlStr ing); // Create control
> Form1.Controls. Add(ctrl); // Add control to the Form
>
> During postbacks, using FindControl("_f irstname") to get at individual
> values. Likewise you could also set each value as needed.
>
> Hopefully this is what you're looking for.
> Roger
>[/color]