MBR IT/.NET 247 : Array list of attributes on ASPFriends.com 'ngfx-io' list

Array list of attributes

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This message was discovered on ASPFriends.com 'ngfx-io' list.
Responses highlighted in red are from those people who are likely to be able to contribute good, authoratitive information to this discussion. They include Microsoft employees, MVP's and others who IMHO contribute well to these kinds of discussions.

Carlos Magalhaes

Reply to this message...

Mitch Denny (VIP)

Carlos,

Change the grid to this:

<asp:dataGrid
autoGenerateColumns="false"
id="Files"
runAt="server">

<columns>

<asp:BoundColumn DataField="Name" HeaderText="Name" />

<asp:BoundColumn DataField="Extension" HeaderText="Extension"
/>

<asp:BoundColumn DataField="Length" HeaderText="Size" />

</columns>

</asp:dataGrid>

You can probably see the pattern now, each bound
column corresponds to a property on the FileInfo
class, ASP.NET does this binding for you, you just
tell it what parts you want displayed.

Hope this helps.

----------------------------------------
- Mitch Denny
- Click here to reveal e-mail address
- +61 (414) 610-141
-

-----Original Message-----
From: Carlos Magalhaes [mailto:Click here to reveal e-mail address]
Sent: Thursday, 6 June 2002 23:01
To: ngfx-io
Subject: [ngfx-io] Array list of attributes

Hi all,
I was helped by Mitch with this array list that is bound to a data grid
now here is the array list code

files = New ArrayList()
Dim di As New DirectoryInfo(Uploaddir) 'uploaddir is
declared as a string and it is the path to the file
Dim fi As FileInfo
For Each fi In di.GetFiles()
files.Add(New FileInfo(fi.Name))
files.Add(New FileInfo(fi.Length)))

Next
Me.Files.DataSource = files
Me.Files.DataBind()
End If
And here is the HTML for the grid:
<asp:BoundColumn DataField="Name" HeaderText="Name"></asp:BoundColumn>
<asp:BoundColumn
DataField="Length" HeaderText="Created"></asp:BoundColumn>
<asp:BoundColumn
DataField="LastWriteTime" HeaderText="Modified"></asp:BoundColumn>
<asp:BoundColumn
DataField="LastAccessTime" HeaderText="Accessed"></asp:BoundColumn>
Now what I cant get to do is what if I want Created time to be length of
the file and I want modified to be the type of file how can I adjust
that right now I am getting can not add file length 8026 (but if cant
find it how does it know the exact length of the file)???
And I do have perm to the dir using impersonation.

Thank you
Carlos
| [ngfx-io] member Click here to reveal e-mail address = YOUR ID |
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Reply to this message...

Carlos Magalhaes

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Dus-ascii">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2652.35">
<TITLE>RE: [ngfx-io] RE: Array list of attributes</TITLE>
</HEAD>
<BODY>

Mitch


I figured that one out ( stuooopid me) all I did was =
set auto generate columns to true it returned all the values then check =
what they where using and used those values and came out with what you =
have below!

I know that's the long way!


Ok now for something different.


Jon showed us the cool Getfilewitoutextention =
property of the path class now I have tried different methods and I =
know that it is doing what it is suppose to but I can add it to the =
array list so that it adds it to the datagrid here is what I have tried =
so far (this is not all the code just some code I tried and get =
errors.

 =
 Dim fi As =
FileInfo 
 &nb=
sp; For Each fi In di.GetFiles()
 &nb=
sp; Dim justfile As String
 &nb=
sp; justfile =3D justfile & fi.Name
 &nb=
sp; Dim FiName As String =3D =
Path.GetFileNameWithoutExtension(justfile) ' this works as I set a trap =
here and it prints out the correct name without the =
extension.

 &nb=
sp; files.Add(New FileInfo(fi.FullName))
 =
 files.add(FiName) ' This is where it =
is bombing out .......


 &nb=
sp; 


 &nb=
sp; Next


 &nb=
sp; Me.Files.DataSource =3D files
 &nb=
sp; Me.Files.DataBind()

 

How can I change that to reflect the name without the =
extension as an additional column in the current Data grid....


Thanks


Carlos


-----Original Message-----
 From: Mitch Denny [<A =
HREF=3D"mailto:Click here to reveal e-mail address">mailto:Click here to reveal e-mail address</=
A>] 
 Sent: Friday, June 07, 2002 3:40 AM
 To: ngfx-io
 Subject: [ngfx-io] RE: Array list of =
attributes


Carlos,


Change the grid to this:


 <asp:dataGrid 
 =
autoGenerateColumns=3D"false" 
 =
id=3D"Files" 
 =
runAt=3D"server"> 


 =
<columns> 


 =
<asp:BoundColumn DataField=3D"Name" =
HeaderText=3D"Name" />


 =
<asp:BoundColumn DataField=3D"Extension" =
HeaderText=3D"Extension"
 />


 =
<asp:BoundColumn DataField=3D"Length" =
HeaderText=3D"Size" />


 =
</columns> 


 =
</asp:dataGrid>


You can probably see the pattern now, each =
bound
 column corresponds to a property on the =
FileInfo
 class, ASP.NET does this binding for you, you =
just
 tell it what parts you want displayed.


Hope this helps.


----------------------------------------
 - Mitch Denny
 - Click here to reveal e-mail address
 - +61 (414) 610-141
 -


-----Original Message-----
 From: Carlos Magalhaes [<A =
HREF=3D"mailto:Click here to reveal e-mail address">mailto:Click here to reveal e-mail address</A>] =

 Sent: Thursday, 6 June 2002 23:01
 To: ngfx-io
 Subject: [ngfx-io] Array list of attributes

 

Hi all, 
 I was helped by Mitch with this array list that is =
bound to a data grid
 now here is the array list code 

 

 files =3D New ArrayList() =

 &nb=
sp; Dim di As New DirectoryInfo(Uploaddir) 'uploaddir is
 declared as a string and it is the path to the file =

 &nb=
sp; Dim fi As FileInfo 
 &nb=
sp; For Each fi In di.GetFiles() 
 &nb=
sp; files.Add(New FileInfo(fi.Name)) 
 &nb=
sp; files.Add(New FileInfo(fi.Length))) 
 &nb=
sp; 
 &nb=
sp; Next 
 &nb=
sp; Me.Files.DataSource =3D files 
 &nb=
sp; Me.Files.DataBind() 
 End If =

 And here is the HTML for the grid: 
 <asp:BoundColumn DataField=3D"Name" =
HeaderText=3D"Name"></asp:BoundColumn> 
 &nb=
sp; &nb=
sp; &nb=
sp; <asp:BoundColumn
 DataField=3D"Length" =
HeaderText=3D"Created"></asp:BoundColumn> 
 &nb=
sp; &nb=
sp; &nb=
sp; <asp:BoundColumn
 DataField=3D"LastWriteTime" =
HeaderText=3D"Modified"></asp:BoundColumn>
 &nb=
sp; &nb=
sp; &nb=
sp; <asp:BoundColumn
 DataField=3D"LastAccessTime" =
HeaderText=3D"Accessed"></asp:BoundColumn>
 Now what I cant get to do is what if I want Created =
time to be length of
 the file and I want modified to be the type of file =
how can I adjust
 that right now I am getting can not add file length =
8026 (but if cant
 find it how does it know the exact length of the =
file)???
 And I do have perm to the dir using impersonation. =


 

Thank you 
 Carlos 
 | [ngfx-io] member Click here to reveal e-mail address =3D YOUR =
ID |
 <A =
HREF=3D"http://www.aspfriends.com/aspfriends/ngfx-io.asp"" target="_blank">http://www.aspfriends.com/aspfriends/ngfx-io.asp"; =
TARGET=3D"_blank">http://www.aspfriends.com/aspfriends/ngfx-io.asp</A> =
=3D JOIN/QUIT
 ------------------------------------------------------------- =
This email
 and any files transmitted are confidential and =
intended solely for the
 use of the individual or entity to which they are =
addressed, whose
 privacy should be respected. Any views or opinions =
are solely those of
 the author and do not necessarily represent those of =
the Trencor Group,
 or any of its representatives, unless specifically =
stated. Email
 transmission cannot be guaranteed to be secure, =
error free or without
 virus contamination. The sender therefore accepts no =
liability for any
 errors or omissions in the contents of this message, =
nor for any virus
 infection that might result from opening this =
message. Trencor is not
 responsible in the event of any third party =
interception of this email.
 If you have received this email in error please =
notify
 Click here to reveal e-mail address For more information about =
Trencor, visit
 www.trencor.net 

 

| [ngfx-io] member Click here to reveal e-mail address =3D YOUR =
ID
 | <A =
HREF=3D"http://www.aspfriends.com/aspfriends/ngfx-io.asp"" target="_blank">http://www.aspfriends.com/aspfriends/ngfx-io.asp"; =
TARGET=3D"_blank">http://www.aspfriends.com/aspfriends/ngfx-io.asp</A> =
=3D JOIN/QUIT


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-------------------------------------------------------------
This email and any files transmitted are
confidential and intended solely for the
use of the individual or entity to which
they are addressed, whose privacy
should be respected. Any views or
opinions are solely those of the author
and do not necessarily represent those
of the Trencor Group, or any of its
representatives, unless specifically
stated.

Email transmission cannot be guaranteed
to be secure, error free or without virus
contamination. The sender therefore
accepts no liability for any errors or
omissions in the contents of this message,
nor for any virus infection that might result
from opening this message. Trencor is not
responsible in the event of any third party
interception of this email.

If you have received this email in error please notify
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Reply to this message...

Mitch Denny (VIP)

Carlos,

In your VB.NET code, do you have Option Strict set? The
call to "add" should be "Add", thats all I can think of
that would be causing the throw there. Feel free to post
all your (complete) code, then we can all try it out
locally without guess what the rest of the ASP.NET
page looks like.

----------------------------------------
- Mitch Denny
- Click here to reveal e-mail address
- +61 (414) 610-141
-

-----Original Message-----
From: Carlos Magalhaes [mailto:Click here to reveal e-mail address]
Sent: Friday, 7 June 2002 19:50
To: ngfx-io
Subject: [ngfx-io] RE: Array list of attributes

Mitch
I figured that one out ( stuooopid me) all I did was set auto generate
columns to true it returned all the values then check what they where
using and used those values and came out with what you have below!
I know that's the long way!
Ok now for something different.
Jon showed us the cool Getfilewitoutextention property of the path class
now I have tried different methods and I know that it is doing what it
is suppose to but I can add it to the array list so that it adds it to
the datagrid here is what I have tried so far (this is not all the code
just some code I tried and get errors.
Dim fi As FileInfo
For Each fi In di.GetFiles()
Dim justfile As String
justfile = justfile & fi.Name
Dim FiName As String =
Path.GetFileNameWithoutExtension(justfile) ' this works as I set a trap
here and it prints out the correct name without the extension.
files.Add(New FileInfo(fi.FullName))
files.add(FiName) ' This is where it is bombing out
.......

Next
Me.Files.DataSource = files
Me.Files.DataBind()

How can I change that to reflect the name without the extension as an
additional column in the current Data grid....
Thanks
Carlos
-----Original Message-----
From: Mitch Denny [mailto:Click here to reveal e-mail address]
Sent: Friday, June 07, 2002 3:40 AM
To: ngfx-io
Subject: [ngfx-io] RE: Array list of attributes
Carlos,
Change the grid to this:
<asp:dataGrid
autoGenerateColumns="false"
id="Files"
runAt="server">
<columns>
<asp:BoundColumn DataField="Name" HeaderText="Name" />
<asp:BoundColumn DataField="Extension" HeaderText="Extension"
/>
<asp:BoundColumn DataField="Length" HeaderText="Size" />
</columns>
</asp:dataGrid>
You can probably see the pattern now, each bound
column corresponds to a property on the FileInfo
class, ASP.NET does this binding for you, you just
tell it what parts you want displayed.
Hope this helps.
----------------------------------------
- Mitch Denny
- Click here to reveal e-mail address
- +61 (414) 610-141
-
-----Original Message-----
From: Carlos Magalhaes [mailto:Click here to reveal e-mail address]
Sent: Thursday, 6 June 2002 23:01
To: ngfx-io
Subject: [ngfx-io] Array list of attributes

Hi all,
I was helped by Mitch with this array list that is bound to a data grid
now here is the array list code

files = New ArrayList()
Dim di As New DirectoryInfo(Uploaddir) 'uploaddir is
declared as a string and it is the path to the file
Dim fi As FileInfo
For Each fi In di.GetFiles()
files.Add(New FileInfo(fi.Name))
files.Add(New FileInfo(fi.Length)))

Next
Me.Files.DataSource = files
Me.Files.DataBind()
End If
And here is the HTML for the grid:
<asp:BoundColumn DataField="Name" HeaderText="Name"></asp:BoundColumn>
<asp:BoundColumn
DataField="Length" HeaderText="Created"></asp:BoundColumn>
<asp:BoundColumn
DataField="LastWriteTime" HeaderText="Modified"></asp:BoundColumn>
<asp:BoundColumn
DataField="LastAccessTime" HeaderText="Accessed"></asp:BoundColumn>
Now what I cant get to do is what if I want Created time to be length of

the file and I want modified to be the type of file how can I adjust
that right now I am getting can not add file length 8026 (but if cant
find it how does it know the exact length of the file)???
And I do have perm to the dir using impersonation.

Thank you
Carlos
| [ngfx-io] member Click here to reveal e-mail address = YOUR ID |
http://www.aspfriends.com/aspfriends/ngfx-io.asp = JOIN/QUIT
------------------------------------------------------------- This email

and any files transmitted are confidential and intended solely for the
use of the individual or entity to which they are addressed, whose
privacy should be respected. Any views or opinions are solely those of
the author and do not necessarily represent those of the Trencor Group,
or any of its representatives, unless specifically stated. Email
transmission cannot be guaranteed to be secure, error free or without
virus contamination. The sender therefore accepts no liability for any
errors or omissions in the contents of this message, nor for any virus
infection that might result from opening this message. Trencor is not
responsible in the event of any third party interception of this email.
If you have received this email in error please notify
Click here to reveal e-mail address For more information about Trencor, visit
www.trencor.net

| [ngfx-io] member Click here to reveal e-mail address = YOUR ID
| http://www.aspfriends.com/aspfriends/ngfx-io.asp = JOIN/QUIT
| [ngfx-io] member Click here to reveal e-mail address = YOUR ID |
http://www.aspfriends.com/aspfriends/ngfx-io.asp = JOIN/QUIT
------------------------------------------------------------- This email
and any files transmitted are confidential and intended solely for the
use of the individual or entity to which they are addressed, whose
privacy should be respected. Any views or opinions are solely those of
the author and do not necessarily represent those of the Trencor Group,
or any of its representatives, unless specifically stated. Email
transmission cannot be guaranteed to be secure, error free or without
virus contamination. The sender therefore accepts no liability for any
errors or omissions in the contents of this message, nor for any virus
infection that might result from opening this message. Trencor is not
responsible in the event of any third party interception of this email.
If you have received this email in error please notify
Click here to reveal e-mail address For more information about Trencor, visit
www.trencor.net

Reply to this message...

	System.Collections.ArrayList
	System.IO.DirectoryInfo
	System.IO.FileInfo
	System.IO.Path
	System.Web.UI.WebControls.BoundColumn

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