Re: Can't update file/database running ASP.NET under IIS [modified] - ASP.NET Discussion Boards

Re: Auto Increment problem (Identity property)

Maxdd 729-Nov-09 7:06

Maxdd 7

29-Nov-09 7:06

Thank you guys I was just curious about the reason but now I understand Smile | :)

Re: Auto Increment problem (Identity property)

Vimalsoft(Pty) Ltd29-Nov-09 19:20

Vimalsoft(Pty) Ltd

29-Nov-09 19:20

You are Welcome Smile | :)

Vuyiswa Maseko,

Spoted in Daniweb-- Sorry to rant. I hate websites. They are just wierd. They don't behave like normal code.

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vuyiswamaseko.com
vuyiswa@its.co.za
http://www.itsabacus.co.za/itsabacus/

datasource on asp:dropdownlist is null after a postback

AlexG211926-Nov-09 14:30

AlexG2119

26-Nov-09 14:30

I have a dropdownlist who's datasource is a ObjectCollection. I have 3 variables within the Object. The Dropdown list works fine and shows the name variable from the object. Below is some code that explains what i'm doing however I get a compiler error that the cast can't be done.

int number = ((Object)dropdownlist1.selecteditem).num;

For some reason i get a cannot convert a type system.web.ui.listitem to projectname.int

Any ideas?

Re: datasource on asp:dropdownlist is null after a postback

Kannan Ar26-Nov-09 15:14

Kannan Ar

26-Nov-09 15:14

It is because you converted the selecteditem to an object which doesn't have the num property.

What is projectname.int? projectname is a class? Can you please show the code that you use to bind the dropdownlist?

Can't update file/database running ASP.NET under IIS

vlehotay26-Nov-09 10:29

vlehotay

26-Nov-09 10:29

Running VS 3.5 ASP.NET I can update text file in \res subdirectory, and
SQL database in \App_Data; but when I run same under IIS (5.1 under XP Pro)
it says 'access to path denied' for text file, and 'db is read-only' for SQL.
IIS is set to allow anonymous users; config is set to authentication None.

There is lots of information about how to protect your files, but nothing about how NOT to. Clearly some default protection is kicking in, but I have
been unable to figure out where or how to turn it off. Any help would be
greatly appreciated.

Re: Can't update file/database running ASP.NET under IIS

Petr Pechovic26-Nov-09 11:19

Petr Pechovic

26-Nov-09 11:19

Hi,

Isn’t that ACL list problem? Right click to the file/directory -> properties -> security tab -> check if the ASP .NET user has permission to that object?

Petr Pechovic

my latest articles:
Web Page Loading in Steps - ASP.NET Solution[^]
Buttons, Message Box and Confirm Box in ASP.NET 3.5[^]

Re: Can't update file/database running ASP.NET under IIS

vlehotay26-Nov-09 15:29

vlehotay

26-Nov-09 15:29

Thanks for responding, Petr.

You are quite right; but to be able to set ACL permits I had to turn off
simple file sharing. I have now tried doing this, and it seems to work.
I had originally assumed if it was on, any process would have access to everything. Does this mean that IIS ignores file sharing, and can't be used without that being turned off?

Also, I had thought that Windows permits would only come into play if
one used Windows authentication; I gather this means authentication and
authorization are unrelated. In which case what I still don't understand is
what happens in the case of web hosting: does it mean the hosting provider
has to go around setting my file permissions, and that I have no control
over that (except perhaps to restrict things)? For example, how do I ensure
my program can update my database, but others can't?

I would appreciate any further comments.

Re: Can't update file/database running ASP.NET under IIS [modified]

Petr Pechovic26-Nov-09 22:11

Petr Pechovic

26-Nov-09 22:11

Hi,

As far as I remember about Windows internal security, every process is running under an account. This account has to be authenticated in the system of course. This is same in case of ISS. There is the process running under ASP.NET user and if you want to manage some files in this process, the ASP.NET user has to have permission for it. This is usual scenario. But........... there is always option to do the impersonation and switch the current process to another context (user).... but that is long story.
In case of web hosting you have to ask admin to set up the ACL. However, nowadays people managing web hosting know, you will need "write" access to App_Data folder, thus it is usually set up in this way.

For example, how do I ensure my program can update my database, but others can't?

This is another thing. Using database login is the right way.

Petr Pechovic

my latest articles:
Web Page Loading in Steps - ASP.NET Solution[^]
Buttons, Message Box and Confirm Box in ASP.NET 3.5[^]

modified on Friday, November 27, 2009 4:58 AM

Converting a DataTable Column to an Array?

James Shao26-Nov-09 5:10

James Shao

26-Nov-09 5:10

Hi, I am having some trouble with creating a simple function that converts a column of a datatable to an array (containing all numbers). Upon running it, it says "Index was outside the bounds of the array"; however, I couldn't understand why my function would create this problem. Frown | :(

Also since I do not usually program using VB.Net, I am not sure if my function has other errors (like syntax errors). Could you please help me check it out? I'd greatly appreciate it! Smile | :)

Thanks in advance.

Here's my VB function:

Public Function DatatableToArray(ByVal dt As DataTable, ByVal intColomn As Integer) As Double()<br />
    Dim intRows As Integer = dt.Rows.Count<br />
    Dim arrValues() As Double = New Double(){}<br />
    Dim i2 As Integer<br />
    For i2 = 0 To intRows - 1<br />
        arrValues(i2) = dt.Rows(i2).Item(intColomn)<br />
    Next<br />
    Return arrValues<br />
End Function

Re: Converting a DataTable Column to an Array?

dan!sh 26-Nov-09 5:22

dan!sh

26-Nov-09 5:22

Check the value in intColumn variable.

50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong...!!

Re: Converting a DataTable Column to an Array?

Covean26-Nov-09 5:30

Covean

26-Nov-09 5:30

I'm not really confirm with the VB-Syntax but

arrValues(i2) = dt.Rows(i2).Item(intColomn)

looks like you try to access an double array that is not initialized (or doesn't have enough space).

Look at you definition:
Dim arrValues() As Double = New Double(){} <- maybe here you should say that this array should have
dt.Rows.Count elements

Greetings
Covean

Re: Converting a DataTable Column to an Array?

Kannan Ar26-Nov-09 5:30

Kannan Ar

26-Nov-09 5:30

Declare arrValues with a specific size.

Like this

Dim arrValues() As Double = New Double(dt.Rows.Count - 1) {}

Re: Converting a DataTable Column to an Array?

Abhishek Sur26-Nov-09 8:18

Abhishek Sur

26-Nov-09 8:18

First of all why dont you use List.... as your collection. It is always better to use ArrayList or Generic List as collection rather than going for Array.

Next, I always prefer to use ForEach rather than For when I am looping through an Enumerable.

If I was in your situation I would write this as :

Private Function DataTableToArray(ByVal x As DataTable, ByVal intCol As Integer) As List(Of Double)
    Dim lst As New List(Of Double)

    For Each dr As DataRow In x.Rows
        lst.Add(dr.Item(intCol))
    Next

    Return lst
End Function

Or if you still want to use Array you might use List(Of Double).ToArray as well.
Cheers.
Rose | [Rose]

Abhishek Sur
Don't forget to click "Good Answer" if you like this Solution.
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Re: Converting a DataTable Column to an Array?

James Shao26-Nov-09 14:38

James Shao

26-Nov-09 14:38

Thanks a lot guys. As soon as I'm home I'll give all of these options a try. Smile | :)

Re: Converting a DataTable Column to an Array?

carlecomm26-Nov-09 23:28

carlecomm

26-Nov-09 23:28

Hi, try the following code:

Dim arrValues(0 To intRows - 1) As Double

instead of

Dim arrValues() As Double = New Double(){}

modified 27-May-14 5:11am.

Re: Converting a DataTable Column to an Array?

James Shao28-Nov-09 18:07

James Shao

28-Nov-09 18:07

Thank you guys, my problem is solved! Smile | :)

Greatly appreciate it.

Incorrect Auto Size of DIV Tags when size of contents are dynamically changed.

Mehdi Ghiasi26-Nov-09 4:11

Mehdi Ghiasi

26-Nov-09 4:11

Dear friends.

when size of content of my page is changed(like loading texts from database) , footer is go down and displayed correctly:

http://www.mahdighiasi.net/default.aspx

but when size of sidebar (left pane) of my page is changed (and content is smaller than sidebar), footer don't move and my sidebar image and texts go out from they DIV and include in footer (see left pane):

http://www.mahdighiasi.net/login.aspx

does anyone has any idea for my problem?

Regards.

M. Ghiasi

Re: Incorrect Auto Size of DIV Tags when size of contents are dynamically changed.

Abhishek Sur26-Nov-09 4:36

Abhishek Sur

26-Nov-09 4:36

the problem is in mozilla. In IE 7 it works fine.. (though strange thing is it has scrollbar in the left Big Grin | :-D

)

Actually div will not automatically resize in case of Firefox if the content increases. thus the content goes outside the container. Poke tongue | ;-P

Add the clear div in the parent div, this makes the parent div to auto adjust its height.

<br />
<div style="clear: both;"> </div>

Cheers.

Abhishek Sur
Don't forget to click "Good Answer" if you like this Solution.
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Re: Incorrect Auto Size of DIV Tags when size of contents are dynamically changed.

Mehdi Ghiasi26-Nov-09 20:09

Mehdi Ghiasi

26-Nov-09 20:09

Dear Friend!

My Problem was in Mozilla, Chrome and IE8. in IE7 and IE8 Compatibility mode i haven't problems.

i added

<div style="clear: both;"> </div>

to the end of my parent div, it works correctly!

Thanks for your solution.

Cheers.

M. Ghiasi

Re: Incorrect Auto Size of DIV Tags when size of contents are dynamically changed.

Abhishek Sur26-Nov-09 22:15

Abhishek Sur

26-Nov-09 22:15

You are most welcome bro... Wink | ;)

Abhishek Sur
Don't forget to click "Good Answer" if you like this Solution.
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User.Identity.Name is empty

rljurado26-Nov-09 3:50

rljurado

26-Nov-09 3:50

Hi all, I'm publishing a small site developed in ASP.NET where I retrieve the user name with the foillowing command Server.HtmlDecode(User.Identity.Name). On debuf mode is working fine, but as soon as I publish it (IIS v6.0) that value is empty.

Can someone help me to setup properly the IIS?

Many thanks

Ralph

Re: User.Identity.Name is empty

Abhijit Jana26-Nov-09 3:51

Abhijit Jana

26-Nov-09 3:51

Which authentication mode are you are using in IIS ?

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
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Re: User.Identity.Name is empty

rljurado26-Nov-09 3:55

rljurado

26-Nov-09 3:55

Thanks for your quick response.

I'm using Annonimous authentication

Re: User.Identity.Name is empty

Abhijit Jana26-Nov-09 4:00

Abhijit Jana

26-Nov-09 4:00

rljurado wrote:
I'm using Annonimous authentication

You need to select Windows Authentication Mode.

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.

Re: Why ?

Abhijit Jana26-Nov-09 6:35

Abhijit Jana

26-Nov-09 6:35

Why this message down voted ? I guess the person who asked the question voted 5 a few hours back. But now some one down voted it, What is the reason behind it ? D'Oh! | :doh:

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
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