find control question

[=?Utf-8?B?V2ViQnVpbGRlcjQ1MQ==?=]

i have a master page and aseries of controls labeled fn1, fn2, fn3 , ...

i want ot loop and use find control but i'm finding them.
i'm using the following w/o luck

ContentPlaceHol der cph =
(ContentPlaceHo lder)Page.Maste r.FindControl(" ContentPlaceHol der1");

for (int i = 0; i < 7; i++)
{
TextBox tbF = (TextBox)cph.Fi ndControl("tbFN " + i.ToString());
TextBox tbL = (TextBox)cph.Fi ndControl("tbLN " + i.ToString());

.........
}

they come up null
where are the controls located??
--
(i''ll be asking a lot of these, but I find C# totally way cooler than vb
and there''s no go''n back!!!)
thanks (as always)

kes

[Mark Rae [MVP]]

Re: find control question

"WebBuilder 451" <WebBuilder451@ discussions.mic rosoft.comwrote in message
news:A671F33D-9E47-4AC9-9020-5E8C09CC7226@mi crosoft.com...

They come up null
Where are the controls located??

Are they located within another container, maybe an <asp:Panel /...?


--
Mark Rae
ASP.NET MVP

http://www.markrae.net

[=?Utf-8?B?V2ViQnVpbGRlcjQ1MQ==?=]

Re: find control question


Appreciate the response!
no just an HTML table.
i have to be doing something odd for this not to be straight forward

if i wanted to use findcontrol even though i don't need to us shouldn't it
just work?

the object Page.Master.Nam ingContainer gives me a list of the controls in
debug
i'd think a simple findControl should work?
--
(i''ll be asking a lot of these, but I find C# totally way cooler than vb
and there''s no go''n back!!!)
thanks (as always)

kes


"Mark Rae [MVP]" wrote:

"WebBuilder 451" <WebBuilder451@ discussions.mic rosoft.comwrote in message
news:A671F33D-9E47-4AC9-9020-5E8C09CC7226@mi crosoft.com...
>

They come up null
Where are the controls located??

>
Are they located within another container, maybe an <asp:Panel /...?
>
>
--
Mark Rae
ASP.NET MVP

http://www.markrae.net

>
>

[Mark Rae [MVP]]

Re: find control question

"WebBuilder 451" <WebBuilder451@ discussions.mic rosoft.comwrote in message
news:9B114814-9400-4092-971F-221E67E4CBDF@mi crosoft.com...

[top-posting corrected]

>>>They come up null
Where are the controls located??

>>
>Are they located within another container, maybe an <asp:Panel /...?

>
No just an HTML table.

As I thought... The answer is, therefore, "Yes, they are located within an
HTML table"... ;-)

I have to be doing something odd for this not to be straight forward

Nope - what you are seeing is standard behaviour.

If I wanted to use FindControl even though I don't need to us shouldn't it
just work?

It is working precisely as it was designed, not the way you think it
should... :-)

FindControl is not recursive - if you tell it to find a control in a page,
it will find only those controls which are directly contained within the
Page container, not those which are contained in child containers.

There are loads of workarounds for this:

http://www.google.co.uk/search?sourceid=navclient&hl=en-GB&ie=UTF-8&rlz=1T4GZEZ_en-GBGB252GB252&q=%22ASP%2eNET%22+FindControl+recursive

--
Mark Rae
ASP.NET MVP

http://www.markrae.net

[=?Utf-8?B?WWFua2VlIEltcGVyaWFsaXN0IERvZw==?=]

RE: find control question

total bummer here with this i, know! My solution is total over kill here, but
it works

ok, use generics to return a list of controls.
i use this in a name space, but you could just use it for a simple
/// <summary>
/// returns a list of the given controls
/// </summary>
/// <param name="root"></param>
/// <param name="typ"></param>
/// <param name="ControlLi st"></param>
/// <returns></returns>
public static List<ControlGet AListOfControls (Control root, Type
typ, List<ControlCon trolList)
{
foreach (Control t in root.Controls)
{
if (t.GetType() == typ)
ControlList.Add (t);
if (t.Controls.Cou nt 0)
{
ControlList = GetAListOfContr ols(t, typ, ControlList);
}
}
return ControlList;
}

then call it thus for the texh boxes:

List<Controlctr ls = new List<Control>() ;
ctrls = AdminPageHelper .GetAListOfCont rols(cph, typeof(TextBox) , ctls);

from there you got the list loop or use as you see fit.

--



"WebBuilder 451" wrote:

i have a master page and aseries of controls labeled fn1, fn2, fn3 , ...
>
i want ot loop and use find control but i'm finding them.
i'm using the following w/o luck
>
ContentPlaceHol der cph =
(ContentPlaceHo lder)Page.Maste r.FindControl(" ContentPlaceHol der1");
>
for (int i = 0; i < 7; i++)
{
TextBox tbF = (TextBox)cph.Fi ndControl("tbFN " + i.ToString());
TextBox tbL = (TextBox)cph.Fi ndControl("tbLN " + i.ToString());
>
........
}
>
they come up null
where are the controls located??
--
(i''ll be asking a lot of these, but I find C# totally way cooler than vb
and there''s no go''n back!!!)
thanks (as always)
>
kes

[=?Utf-8?B?V2ViQnVpbGRlcjQ1MQ==?=]

RE: find control question

a lot of work for a simple task. But i'll try it!
--
(i''ll be asking a lot of these, but I find C# totally way cooler than vb
and there''s no go''n back!!!)
thanks (as always)

kes


"Yankee Imperialist Dog" wrote:

total bummer here with this i, know! My solution is total over kill here, but
it works
>
ok, use generics to return a list of controls.
i use this in a name space, but you could just use it for a simple
/// <summary>
/// returns a list of the given controls
/// </summary>
/// <param name="root"></param>
/// <param name="typ"></param>
/// <param name="ControlLi st"></param>
/// <returns></returns>
public static List<ControlGet AListOfControls (Control root, Type
typ, List<ControlCon trolList)
{
foreach (Control t in root.Controls)
{
if (t.GetType() == typ)
ControlList.Add (t);
if (t.Controls.Cou nt 0)
{
ControlList = GetAListOfContr ols(t, typ, ControlList);
}
}
return ControlList;
}
>
then call it thus for the texh boxes:
>
List<Controlctr ls = new List<Control>() ;
ctrls = AdminPageHelper .GetAListOfCont rols(cph, typeof(TextBox) , ctls);
>
from there you got the list loop or use as you see fit.
>
--
>
>
>
"WebBuilder 451" wrote:
>

i have a master page and aseries of controls labeled fn1, fn2, fn3 , ...

i want ot loop and use find control but i'm finding them.
i'm using the following w/o luck

ContentPlaceHol der cph =
(ContentPlaceHo lder)Page.Maste r.FindControl(" ContentPlaceHol der1");

for (int i = 0; i < 7; i++)
{
TextBox tbF = (TextBox)cph.Fi ndControl("tbFN " + i.ToString());
TextBox tbL = (TextBox)cph.Fi ndControl("tbLN " + i.ToString());

........
}

they come up null
where are the controls located??
--
(i''ll be asking a lot of these, but I find C# totally way cooler than vb
and there''s no go''n back!!!)
thanks (as always)

kes

[=?Utf-8?B?V2ViQnVpbGRlcjQ1MQ==?=]

Re: find control question

ok, thanks i'll check them out

--
(i''ll be asking a lot of these, but I find C# totally way cooler than vb
and there''s no go''n back!!!)
thanks (as always)

kes


"Mark Rae [MVP]" wrote:

"WebBuilder 451" <WebBuilder451@ discussions.mic rosoft.comwrote in message
news:9B114814-9400-4092-971F-221E67E4CBDF@mi crosoft.com...
>
[top-posting corrected]
>

>>They come up null
Where are the controls located??
>
Are they located within another container, maybe an <asp:Panel /...?

No just an HTML table.

>
As I thought... The answer is, therefore, "Yes, they are located within an
HTML table"... ;-)
>

I have to be doing something odd for this not to be straight forward

>
Nope - what you are seeing is standard behaviour.
>

If I wanted to use FindControl even though I don't need to us shouldn't it
just work?

>
It is working precisely as it was designed, not the way you think it
should... :-)
>
FindControl is not recursive - if you tell it to find a control in a page,
it will find only those controls which are directly contained within the
Page container, not those which are contained in child containers.
>
There are loads of workarounds for this:

http://www.google.co.uk/search?sourceid=navclient&hl=en-GB&ie=UTF-8&rlz=1T4GZEZ_en-GBGB252GB252&q=%22ASP%2eNET%22+FindControl+recursive

>
>
--
Mark Rae
ASP.NET MVP

http://www.markrae.net

>
>

[=?Utf-8?B?YnJ1Y2UgYmFya2Vy?=]

RE: find control question

then try this routine:

var list = ControlWalker(t his, ctl =>
ctl.ID.StartsWi th("tbFN") ||
ctl.ID.StartsWi th("tbLN"));

....

public List<ControlCon trolWalker(
Control ctl,
Predicate<Contr olmatcher)
{
var list = new List<Control>() ;
if (matcher(ctl)) list.Add(ctl);
for (int i=0; i < ctl.Controls.Co unt; ++i)
{
var childList = ControlWalker(
ctl.Controls[i],matcher);
if (childList.Coun t 0)
list.AddRange(c hildList);
}
return (list);
}



-- bruce (sqlwork.com)


"WebBuilder 451" wrote:

a lot of work for a simple task. But i'll try it!
--
(i''ll be asking a lot of these, but I find C# totally way cooler than vb
and there''s no go''n back!!!)
thanks (as always)
>
kes
>
>
"Yankee Imperialist Dog" wrote:
>

total bummer here with this i, know! My solution is total over kill here, but
it works

ok, use generics to return a list of controls.
i use this in a name space, but you could just use it for a simple
/// <summary>
/// returns a list of the given controls
/// </summary>
/// <param name="root"></param>
/// <param name="typ"></param>
/// <param name="ControlLi st"></param>
/// <returns></returns>
public static List<ControlGet AListOfControls (Control root, Type
typ, List<ControlCon trolList)
{
foreach (Control t in root.Controls)
{
if (t.GetType() == typ)
ControlList.Add (t);
if (t.Controls.Cou nt 0)
{
ControlList = GetAListOfContr ols(t, typ, ControlList);
}
}
return ControlList;
}

then call it thus for the texh boxes:

List<Controlctr ls = new List<Control>() ;
ctrls = AdminPageHelper .GetAListOfCont rols(cph, typeof(TextBox) , ctls);

from there you got the list loop or use as you see fit.

--



"WebBuilder 451" wrote:

i have a master page and aseries of controls labeled fn1, fn2, fn3 , ...
>
i want ot loop and use find control but i'm finding them.
i'm using the following w/o luck
>
ContentPlaceHol der cph =
(ContentPlaceHo lder)Page.Maste r.FindControl(" ContentPlaceHol der1");
>
for (int i = 0; i < 7; i++)
{
TextBox tbF = (TextBox)cph.Fi ndControl("tbFN " + i.ToString());
TextBox tbL = (TextBox)cph.Fi ndControl("tbLN " + i.ToString());
>
........
}
>
they come up null
where are the controls located??
--
(i''ll be asking a lot of these, but I find C# totally way cooler than vb
and there''s no go''n back!!!)
thanks (as always)
>
kes