ArrayList of custom classes as Datagrid's DataSource

[dlobalzo]

Hi guys, I've been reading several topics that talk about creating a
custom collection to use it as DataSource of a Datagrid.

But the fact is I have a class called Action and another class called
Profile. In my application, the user assigns several Actions to a
Profile. I thought doing this using an ArrayList of Actions and puting
that as the DataSource of the Datagrid that shows the assignments. It
works, but it shows every property Action class have.

My two questions are:
1) how can I choose the properties of Action class I want to be
bounded?
2) does it sound reasonable? I mean the ArrayList of my custom class
Action...

Thanks in advance,
Damian

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

Is this a web or win app ?
I have done this for a web app, don't think it will work in a win app
though.
Here is the code:

You see I have to cast the DataItem to teh correct type to have access to
the properties

<asp:templateco lumn ItemStyle-VerticalAlign=" Top" ItemStyle-Width="117"
ItemStyle-HorizontalAlign ="left" >
<itemtemplate >
<span ><%# ((CtpRecord)Con tainer.DataItem ).Locations.Cou nt==0?"Not set":
((CtpRecord)Con tainer.DataItem ).Locations[0].LocalName%></span>
</itemtemplate>
</asp:templatecol umn>

This is a column which require some extra processing hence I use a method
declared as protected string GetFirstDocumen tOfRecord in the code behind

<asp:templateco lumn ItemStyle-VerticalAlign=" Top" ItemStyle-Width="110"
ItemStyle-HorizontalAlign ="left" >
<itemtemplate >
<span ><%# GetFirstDocumen tOfRecord((CtpR ecord)Container .DataItem)
%></span>
</itemtemplate>
</asp:templatecol umn>
cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation

<dl******@gmail .com> wrote in message
news:11******** **************@ g43g2000cwa.goo glegroups.com.. .

Hi guys, I've been reading several topics that talk about creating a
custom collection to use it as DataSource of a Datagrid.

But the fact is I have a class called Action and another class called
Profile. In my application, the user assigns several Actions to a
Profile. I thought doing this using an ArrayList of Actions and puting
that as the DataSource of the Datagrid that shows the assignments. It
works, but it shows every property Action class have.

My two questions are:
1) how can I choose the properties of Action class I want to be
bounded?
2) does it sound reasonable? I mean the ArrayList of my custom class
Action...

Thanks in advance,
Damian

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

Is this a web or win app ?
I have done this for a web app, don't think it will work in a win app
though.
Here is the code:

You see I have to cast the DataItem to teh correct type to have access to
the properties

<asp:templateco lumn ItemStyle-VerticalAlign=" Top" ItemStyle-Width="117"
ItemStyle-HorizontalAlign ="left" >
<itemtemplate >
<span ><%# ((CtpRecord)Con tainer.DataItem ).Locations.Cou nt==0?"Not set":
((CtpRecord)Con tainer.DataItem ).Locations[0].LocalName%></span>
</itemtemplate>
</asp:templatecol umn>

This is a column which require some extra processing hence I use a method
declared as protected string GetFirstDocumen tOfRecord in the code behind

<asp:templateco lumn ItemStyle-VerticalAlign=" Top" ItemStyle-Width="110"
ItemStyle-HorizontalAlign ="left" >
<itemtemplate >
<span ><%# GetFirstDocumen tOfRecord((CtpR ecord)Container .DataItem)
%></span>
</itemtemplate>
</asp:templatecol umn>
cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation

<dl******@gmail .com> wrote in message
news:11******** **************@ g43g2000cwa.goo glegroups.com.. .

Hi guys, I've been reading several topics that talk about creating a
custom collection to use it as DataSource of a Datagrid.

But the fact is I have a class called Action and another class called
Profile. In my application, the user assigns several Actions to a
Profile. I thought doing this using an ArrayList of Actions and puting
that as the DataSource of the Datagrid that shows the assignments. It
works, but it shows every property Action class have.

My two questions are:
1) how can I choose the properties of Action class I want to be
bounded?
2) does it sound reasonable? I mean the ArrayList of my custom class
Action...

Thanks in advance,
Damian

[dlobalzo]

Ignacio:

It's all on a web app. Maybe I didn't express myself clearly.

I want to implement some kind of interface to tell the data Grid which
properties he has to take from each object in the ArrayList.

I don't know if that's possible.

Thanks,
Dam

[dlobalzo]

Ignacio:

It's all on a web app. Maybe I didn't express myself clearly.

I want to implement some kind of interface to tell the data Grid which
properties he has to take from each object in the ArrayList.

I don't know if that's possible.

Thanks,
Dam

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

Ok, then the piece of code I gave you fills well , you select the
properties you want to show, you use a templacecolumn for that.

one question though, all the elements of the arraylist are of the same type
right?
just use teh code I gave you or let me know if you have any problem.
cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation

<dl******@gmail .com> wrote in message
news:11******** **************@ g47g2000cwa.goo glegroups.com.. .

Ignacio:

It's all on a web app. Maybe I didn't express myself clearly.

I want to implement some kind of interface to tell the data Grid which
properties he has to take from each object in the ArrayList.

I don't know if that's possible.

Thanks,
Dam