C# Discussion Boards - CodeProject

Henry Minute4-May-09 6:25

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