Re: ListView Picture - C# Discussion Boards

Re: Access denied

Dave Kreskowiak5-May-09 3:51

Dave Kreskowiak

5-May-09 3:51

jon_80 wrote:
but what is the ASP.net acct used?

Depends on the server being used. If it's the development web server that comes with Visual Studio, it's "ASPNET". If it's IIS 6.0 and below, it'll probably be something like "IUSR_machineName". For IIS 7.0 and above, I think this name got changed to just "IUSR".

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

Re: Access denied

Member 41879984-May-09 20:00

Member 4187998

4-May-09 20:00

This method should work for you.

public static void AddFileSecurity(string FileName, string Account, FileSystemRights Rights, AccessControlType ControlType)
{
try
{

// Create a new FileInfo object.
FileInfo fInfo = new FileInfo(FileName);

// Get a FileSecurity object that represents the
// current security settings.
FileSecurity fSecurity = fInfo.GetAccessControl();

// Add the FileSystemAccessRule to the security settings.
fSecurity.AddAccessRule(new FileSystemAccessRule(Account,
Rights,
ControlType));

// Set the new access settings.
fInfo.SetAccessControl(fSecurity);

}

catch (Exception exp)
{

Console.WriteLine(exp.Message.ToString());
Console.Read();
}
}

You can use it with something like this:

FileWritePermission.AddFileSecurity(path, "everyone", System.Security.AccessControl.FileSystemRights.FullControl, System.Security.AccessControl.AccessControlType.Allow);

Cheers

Re: Access denied

Dave Kreskowiak5-May-09 3:55

Dave Kreskowiak

5-May-09 3:55

Cute code, but an account (and core running under that account) cannot grant more permissions to itself, nor anyone else, than it already has.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

ListView Picture

drcmomo4-May-09 5:11

drcmomo

4-May-09 5:11

Good morning everybody,
I would like to show stocked data in ListView to send DataTable aprés Select. DataTable contains a colonne of type Byte [] Array, I do not succeed show pictures in gate.somebody address can help me SVP?

Re: ListView Picture

Henry Minute4-May-09 6:25

Henry Minute

4-May-09 6:25

I think that I understand what you want to do. If I am right, this[^] link should help you.

If I am wrong, please edit your original post and try to explain you problem more clearly.

Henry Minute

Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”

Re: ListView Picture

drcmomo4-May-09 8:28

drcmomo

4-May-09 8:28

Good morning,
Excuse me, I am French, I speak the language badly Englishman. My question is the following:
I have one banks on look at foundation of data which contains columns Name, Forename, Photograph
I make a request SQL which is the following:

cmd.CommandText ="SELECT NAME, FIRSTNAME, PHOTO FROM USER";

I fill ListView in the following way:
sqlDa = new SqlDataAdapter();
sqlDa.SelectCommand = cmd;
try
{
sqlDa.Fill(dt_ListeUtilisateur);
if (dt_ListeUtilisateur.Rows.Count &gt; 0)
{

lstUtilisateur.DataContext = dt_ListeUtilisateur.DefaultView;

}} //lstUtilisateur = ListView
XAML :
<listview margin="7,10,15,48" name="lstUtilisateur" itemssource="{Binding}" borderbrush="{x:Null}" listboxitem.selected="lstUtilisateur_Selected" selectionchanged="lstUtilisateur_SelectionChanged">
<listview.view>
<gridview>
<gridviewcolumn header="NAME" displaymemberbinding="{Binding Path=NAME}" selector.isselected="True">
<gridviewcolumn header="FIRSTNAME" displaymemberbinding="{Binding Path=FIRSTNAME}">
<gridviewcolumn header="Picture" width="100" displaymemberbinding="{Binding Path=MyImage}">
<gridviewcolumn.celltemplate>
<datatemplate>

In the column Picture of my ListView, I have unfortunately not the photograph but Byte [] Array you can help me please.

Re: ListView Picture

drcmomo4-May-09 8:29

drcmomo

4-May-09 8:29

Good morning,
Excuse me, I am French, I speak the language badly Englishman. My question is the following:
I have one banks on look at foundation of data which contains columns Name, Forename, Photograph
I make a request SQL which is the following:

cmd.CommandText ="SELECT NAME, FIRSTNAME, PHOTO FROM USER";

I fill ListView in the following way:
sqlDa = new SqlDataAdapter();
sqlDa.SelectCommand = cmd;
try
{
sqlDa.Fill(dt_ListeUtilisateur);
if (dt_ListeUtilisateur.Rows.Count>0)
{

lstUtilisateur.DataContext = dt_ListeUtilisateur.DefaultView;

}} //lstUtilisateur = ListView
XAML :
<listview margin="7,10,15,48" name="lstUtilisateur" itemssource="{Binding}" borderbrush="{x:Null}" listboxitem.selected="lstUtilisateur_Selected" selectionchanged="lstUtilisateur_SelectionChanged">
<listview.view>
<gridview>
<gridviewcolumn header="NAME" displaymemberbinding="{Binding Path=NAME}" selector.isselected="True">
<gridviewcolumn header="FIRSTNAME" displaymemberbinding="{Binding Path=FIRSTNAME}">
<gridviewcolumn header="Picture" width="100" displaymemberbinding="{Binding Path=MyImage}">
<gridviewcolumn.celltemplate>
<datatemplate>

In the column Picture of my ListView, I have unfortunately not the photograph but Byte [] Array you can help me please.

Re: ListView Picture

Henry Minute4-May-09 8:46

Henry Minute

4-May-09 8:46

Your English is quite good. Part of what you are trying to do, is what I thought from your first post, so it must be reasonable. Smile | :)

I must admit that I didn't read all of the link I gave, but I thought that it dealt with reading and saving images to and from a database. If that is not where your problem is, then can I suggest that you post in the WPF forum here on CP, as your application would seem to be a WPF one.

If loading the photo is your problem, then perhaps you might like to Google for yourself. The search term I used was 'Loading Image from SQLServer C#', to see if there is anything more appropriate.

You seem to be slightly annoyed by my suggesting that you re-word your question. You shouldn't be, I often find that trying to ask something using different words makes me understand it a little better, myself.

Anyway, Good Luck! Smile | :)

(Bon chance ????)

convert uint to byte[]

Huisheng Chen4-May-09 4:54

Huisheng Chen

4-May-09 4:54

Hi all,

I have a byte[] to unit function, I would like to have a reverse function that convert unit to byte[], please help. thanks a lot.

public static uint ParseUint(byte[] buffer, int uintLengthInBytes, ref int offset)
{
    uint value = 0;
    int i, j;
    for (i = offset + uintLengthInBytes - 1, j = 0; i >= offset; i--, j++)
        value |= (uint)(buffer[i] << (8 * j));
    offset += uintLengthInBytes;
    return value;
}

Regards,
unruledboy_at_gmail_dot_com
http://www.xnlab.com

Re: convert uint to byte[]

harold aptroot4-May-09 4:59

harold aptroot

4-May-09 4:59

BitConverter.GetBytes

Re: convert uint to byte[]

Huisheng Chen4-May-09 5:03

Huisheng Chen

4-May-09 5:03

hi, I know that method, the result is wrong. please take a closer look at the original code D'Oh! | :doh:

Regards,
unruledboy_at_gmail_dot_com
http://www.xnlab.com

Re: convert uint to byte[]

harold aptroot4-May-09 5:10

harold aptroot

4-May-09 5:10

What? Is it in Big Endian or something? Just Array.Reverse the result?

Re: convert uint to byte[]

Huisheng Chen4-May-09 5:20

Huisheng Chen

4-May-09 5:20

sorry, my debugging mistake, you are right. thanks a lot. Rose | [Rose]

Regards,
unruledboy_at_gmail_dot_com
http://www.xnlab.com

Re: convert uint to byte[]

harold aptroot4-May-09 5:31

harold aptroot

4-May-09 5:31

You're welcome

Re: convert uint to byte[]

Alan N4-May-09 5:21

Alan N

4-May-09 5:21

Byte order reversal?

Use System.BitConverter and System.Net.IPAddress.NetworkToHostOrder/HostToNetworkOrder.

One I did earlier:

/// <summary>
/// Byte reverse the value and write to the buffer at ofs
/// </summary>
/// <param name="i">value to write</param>
/// <param name="ofs">Write offset in the buffer</param>
internal void WriteUInt32(UInt32 i, Int32 ofs, Byte[] buffer) {
  Int32 j = IPAddress.HostToNetworkOrder(unchecked((Int32)i));
  Byte[] b = BitConverter.GetBytes(j);
  b.CopyTo(buffer, ofs);
}

Alan.

Re: convert uint to byte[]

harold aptroot4-May-09 5:30

harold aptroot

4-May-09 5:30

Nice! I'm going to remember that one

How can I use timers in BHO?

svt gdwl4-May-09 4:45

svt gdwl

4-May-09 4:45

present, and according to data availble as packet by packet.
I want to read the html elements obtained and change the innertext of each html element. I am able to do all these.
The main thing is I want the changed text should be visible to user directly instead of original text which is obtained in packets.
How can I do this?

If I had to use threading, How can I do that?
or If I can user timers, how can I do this?

Say correct solution. If there are any examples, it would be so much helpful for me...

[newbie] err

jon-804-May-09 4:39

jon-80

4-May-09 4:39

See anything wrong here? Pasted out of MSDN to a Console application (C#).

delegate int del(int i); //error?
del myDelegate = x => x * x;
int j = myDelegate(5); //j = 2

VS 2008 / .NET 3.5

Confused | :confused:

http://msdn.microsoft.com/en-us/library/bb397687.aspx[^]

Jon

Re: [newbie] err

Jimmanuel4-May-09 4:59

Jimmanuel

4-May-09 4:59

the //error? line needs to be in a class definition but not inside of a function

Badger | [badger,badger,badger,badger...]

How to Detect Advertisement from a Video file

pravat_SABAT4-May-09 3:31

pravat_SABAT

4-May-09 3:31

Hi There,

I am Using FFMpeg in my project and it was great going. I am struck in a position where I need to fetch the Time when a blank screen comes in between a video file. It will be great if you help me in this Issue.

Thanks & Regards

Re: How to Detect Advertisement from a Video file

Dave Kreskowiak4-May-09 5:13

Dave Kreskowiak

4-May-09 5:13

You're going to have to find a forum specific to the library you're using. What you're asking has nothing to do with C# or the .NET Framework at all.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

Date Difference in Datagridview [modified]

nagendra.vk4-May-09 3:23

nagendra.vk

4-May-09 3:23

hi everybody

i m using C# Application

i have a 'date' and 'days' columns in datagridview

now i want to findout the no. of days between two dates
how can i calculate
pls help me

date days
--------------------------------------------
1/11/2008 0
1/12/2008 30
3/12/2008 2
--------------------------------------------

modified on Monday, May 4, 2009 9:32 AM

Re: Date Difference in Datagridview

stancrm4-May-09 3:45

stancrm

4-May-09 3:45

Example :

DateTime d1 = new DateTime(2008, 1, 1);
DateTime d2 = new DateTime(2009, 1, 1);
TimeSpan ts = d2.Substract(d1);

ts.TotalDays <- is the value you want.

sql error

michaelgr14-May-09 3:08

michaelgr1

4-May-09 3:08

Hello,

I use dataadapter to fill datagrid (using datatable).
dataAdapter =

new SqlDataAdapter(selectcommand3, connectionstring);

But my sql query command is too long. because i receive an error that sqlexception was unhandled (incorrect syntax near '='). But when i write another much shorter sql query it works fine. What can i do to solve it?

Re: sql error

Not Active4-May-09 3:20

Not Active

4-May-09 3:20

Use stored procs

only two letters away from being an asset

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.