Datagrid binding

[ShadowsOfTheBeast]

hi all i am trying to bind data to my datagrid from a listbox which i think
it should work but an error is coming up saying i have to bind to a
datasource that implements the Inumerable or icollection...but i thought list
boxes did implement one of the above as they do have their items collection
property,
can anyone help?

[Oliver Sturm]

ShadowsOfTheBeast wrote:

hi all i am trying to bind data to my datagrid from a listbox which i think
it should work but an error is coming up saying i have to bind to a
datasource that implements the Inumerable or icollection...but i thought
list
boxes did implement one of the above as they do have their items collection
property,

I'm not completely sure I understand you correctly - a bit of sample code
about what you are doing could have helped. But I assume you are trying to
bind the list box directly to the grid, like this:

myDataGrid.DataSource = myListBox;

This won't work because it's not the list box that implements the
collection interface, it's only the object returned by the Items property.
This is a special collection for use with the ListBox and it implements
IList. So you should be fine if you use a line like this to do the binding:

myDataGrid.DataSource = myListBox.Items;
Oliver Sturm
--
omnibus ex nihilo ducendis sufficit unum
Spaces inserted to prevent google email destruction:
MSN oliver @ sturmnet.org Jabber sturm @ amessage.de
ICQ 27142619 http://www.sturmnet.org/blog

[ShadowsOfTheBeast]

hi oliver thanks for your help i kinda figured that out minutes
afterwards...but what i am actually trying to do is this:

i have a listbox control that gets its data from another listbox (hence gets
a subset by selecting from the first list box) and i have a datagrid which
has a template column and a bound column, i want to bind the bound column to
this second listbox and then its template column implements a dropdownlist
for every bound column item, now this dropdownlist (in the template column of
the datagrid) i want to bind it to a dataset's datatable

"Oliver Sturm" wrote:

ShadowsOfTheBeast wrote:

hi all i am trying to bind data to my datagrid from a listbox which i think
it should work but an error is coming up saying i have to bind to a
datasource that implements the Inumerable or icollection...but i thought
list
boxes did implement one of the above as they do have their items collection
property,

I'm not completely sure I understand you correctly - a bit of sample code
about what you are doing could have helped. But I assume you are trying to
bind the list box directly to the grid, like this:

myDataGrid.DataSource = myListBox;

This won't work because it's not the list box that implements the
collection interface, it's only the object returned by the Items property.
This is a special collection for use with the ListBox and it implements
IList. So you should be fine if you use a line like this to do the binding:

myDataGrid.DataSource = myListBox.Items;
Oliver Sturm
--
omnibus ex nihilo ducendis sufficit unum
Spaces inserted to prevent google email destruction:
MSN oliver @ sturmnet.org Jabber sturm @ amessage.de
ICQ 27142619 http://www.sturmnet.org/blog

[ShadowsOfTheBeast]

hi oliver thanks for your help i kinda figured that out minutes
afterwards...but what i am actually trying to do is this:

i have a listbox control that gets its data from another listbox (hence gets
a subset by selecting from the first list box) and i have a datagrid which
has a template column and a bound column, i want to bind the bound column to
this second listbox and then its template column implements a dropdownlist
for every bound column item, now this dropdownlist (in the template column of
the datagrid) i want to bind it to a dataset's datatable

I have already created a dropdownlist that gets the data from a dataset but
how do i implement this whithin the datagrid in a
<templatecolumn><itemTemplate>
i cant seem to do this can you please help?

"Oliver Sturm" wrote:

ShadowsOfTheBeast wrote:

hi all i am trying to bind data to my datagrid from a listbox which i think
it should work but an error is coming up saying i have to bind to a
datasource that implements the Inumerable or icollection...but i thought
list
boxes did implement one of the above as they do have their items collection
property,

I'm not completely sure I understand you correctly - a bit of sample code
about what you are doing could have helped. But I assume you are trying to
bind the list box directly to the grid, like this:

myDataGrid.DataSource = myListBox;

This won't work because it's not the list box that implements the
collection interface, it's only the object returned by the Items property.
This is a special collection for use with the ListBox and it implements
IList. So you should be fine if you use a line like this to do the binding:

myDataGrid.DataSource = myListBox.Items;
Oliver Sturm
--
omnibus ex nihilo ducendis sufficit unum
Spaces inserted to prevent google email destruction:
MSN oliver @ sturmnet.org Jabber sturm @ amessage.de
ICQ 27142619 http://www.sturmnet.org/blog

[Oliver Sturm]

ShadowsOfTheBeast wrote:

hi oliver thanks for your help i kinda figured that out minutes
afterwards...but what i am actually trying to do is this:

i have a listbox control that gets its data from another listbox (hence
gets
a subset by selecting from the first list box) and i have a datagrid which
has a template column and a bound column, i want to bind the bound column
to
this second listbox and then its template column implements a dropdownlist
for every bound column item, now this dropdownlist (in the template column
of
the datagrid) i want to bind it to a dataset's datatable

I have already created a dropdownlist that gets the data from a dataset but
how do i implement this whithin the datagrid in a
<templatecolumn><itemTemplate>
i cant seem to do this can you please help?

I'm sorry. I only just realized that you are talking about a DataGrid as a
web control, and I really can't tell you much about that because I have
never used it. I expect somebody else will be able to help you with the
details of that setup.

Oliver Sturm
--
omnibus ex nihilo ducendis sufficit unum
Spaces inserted to prevent google email destruction:
MSN oliver @ sturmnet.org Jabber sturm @ amessage.de
ICQ 27142619 http://www.sturmnet.org/blog

[Oliver Sturm]

Oliver Sturm wrote:

I'm sorry. I only just realized that you are talking about a DataGrid as a
web control, and I really can't tell you much about that because I have
never used it. I expect somebody else will be able to help you with the
details of that setup.

And I should have said that it's probably a good idea to post this to a
more specific group like aspnet.datagridcontrol.
Oliver Sturm
--
omnibus ex nihilo ducendis sufficit unum
Spaces inserted to prevent google email destruction:
MSN oliver @ sturmnet.org Jabber sturm @ amessage.de
ICQ 27142619 http://www.sturmnet.org/blog

[ShadowsOfTheBeast]

thanks oliver they work very similarly but the web one is a bit more
annoying!!!
can you tell me where to find the news group you reccommended i cant find it?

"Oliver Sturm" wrote:

Oliver Sturm wrote:

I'm sorry. I only just realized that you are talking about a DataGrid as a
web control, and I really can't tell you much about that because I have
never used it. I expect somebody else will be able to help you with the
details of that setup.

And I should have said that it's probably a good idea to post this to a
more specific group like aspnet.datagridcontrol.
Oliver Sturm
--
omnibus ex nihilo ducendis sufficit unum
Spaces inserted to prevent google email destruction:
MSN oliver @ sturmnet.org Jabber sturm @ amessage.de
ICQ 27142619 http://www.sturmnet.org/blog

[Cor Ligthert [MVP]]

Shadow,

You should give in my opinion good information. With telling us that you are
using a listbox that implements Icollection, are you in my opinion telling
that you use a windows.form.listbox. You bring us therefore completely in a
wrong direction and all time spent on you is a waste.

However see this sample, it is for a windowsform listbox. However the way
to handle this is basicly not diverent for a webform.

http://www.windowsformsdatagridhelp.com/default.aspx

I hope this helps,

Cor

[Oliver Sturm]

ShadowsOfTheBeast wrote:

can you tell me where to find the news group you reccommended i cant find
it?

The group I meant was
"microsoft.public.dotnet.framework.aspnet.datagrid control" and it should
be on the same news server that you're currently posting to.
Oliver Sturm
--
omnibus ex nihilo ducendis sufficit unum
Spaces inserted to prevent google email destruction:
MSN oliver @ sturmnet.org Jabber sturm @ amessage.de
ICQ 27142619 http://www.sturmnet.org/blog

[ShadowsOfTheBeast]

Hi Cor,
sorry about that, that was the error i was getting... but like i said i
figured that one out pretty quickly, I am developing in asp.net and am
trying to bind a listbox web server control to a datagrid web server control
(to be specific) to a bound column in my datagrid, i also have a template
column in my datagrid that uses a dropdownlist web server control...now
normally binding a dropdownlist control to a dataSet is easy and i can do
that...but when you have the dropdownlist in the datagrid how do you do this
(that is still have it bound to a dataset's datatable?)

by the way i cant get to the page you sent me ...gettign a " The page cannot
be displayed" error.

many thanks

"Cor Ligthert [MVP]" wrote:

Shadow,

You should give in my opinion good information. With telling us that you are
using a listbox that implements Icollection, are you in my opinion telling
that you use a windows.form.listbox. You bring us therefore completely in a
wrong direction and all time spent on you is a waste.

However see this sample, it is for a windowsform listbox. However the way
to handle this is basicly not diverent for a webform.

http://www.windowsformsdatagridhelp.com/default.aspx

I hope this helps,

Cor

[Cor Ligthert [MVP]]

Shadow,

I forgot to set the link it is on this page.

Try this one, keep in mind that the propertynames for the webform listbox
are different. (And you have to store your dataset in a session during post
and postback.

http://www.windowsformsdatagridhelp....2-d663cbcccb64
I hope this helps better,

Cor