ListBox ValueMember - C# Discussion Boards

rah_sin10-May-06 23:57

10-May-06 23:57

i am not using any special string iam just using
simple code to show message box
i.e messagebox.show("My message");
and blank message box is displaying
and i am binding combobox with
dataset it is pouplating but blank list
is coming on dropping down
i don't know why it is happening
becouse a week back every thing was working fine

rahul

Re: strange problem

alexey _N11-May-06 0:05

alexey _N

11-May-06 0:05

Try running your application on another computer.
If there is no bug - reinstall your system.

Best regards, Alexey.

Re: strange problem

albCode11-May-06 0:05

albCode

11-May-06 0:05

ur have problem with McAfee
and here u can download zip and install it then u can see mesagebox string

http://sdownload.nai.com/products/protected/hotfix/VSE80P09.Zip[^]

NHibernate.AssertionFailure

KrIstOfK10-May-06 23:03

KrIstOfK

10-May-06 23:03

NHibernate.AssertionFailure: null id in entry (don't flush the Session after an exception occurs)
   at NHibernate.Impl.SessionImpl.CheckId(Object obj, IClassPersister persister, Object id)
   at NHibernate.Impl.SessionImpl.FlushEntity(Object obj, EntityEntry entry)
   at NHibernate.Impl.SessionImpl.FlushEntities()
   at NHibernate.Impl.SessionImpl.FlushEverything()
   at NHibernate.Impl.SessionImpl.Flush()
   at NHibernate.Transaction.AdoTransaction.Commit()

I get this error when I'm deleting some items (and sub items) form my database, I'm using NHibernate for my Datalayer. Does anybody knows what's going wrong or where I have to start looking what's causing this error? Confused | :confused:

Playing video from stream

shadow0110-May-06 22:38

shadow01

10-May-06 22:38

Hi,
I would like to ask if anyone could give me an advice.
I want to play a video file, but not from a file or url but from a stream.
I was looking for some examples but I only found smaples that are playing videos from a files.

-- modified at 4:39 Thursday 11th May, 2006

Re: Playing video from stream

NaNg1524111-May-06 2:37

NaNg15241

11-May-06 2:37

try saving the stream to a temporary file

Re: Playing video from stream

shadow0111-May-06 3:06

shadow01

11-May-06 3:06

Thanks, but it isn't solution for my problem.
I'm looking for some advice how to play a video from a memory buffer or a stream.
File using is not efficient.

ListBox ValueMember

adityap10-May-06 21:21

adityap

10-May-06 21:21

Hi,
Can we have a ListBox ValueMember Collection?
If we have SelectionMode as MultiExtended, and we select more than one values in the listbox, then can we show its respective value member as we can show the SelectedIndices (Collection of selected index)
If there is a way could you please post an example with it..
And if there is not then What are the alternatives (without using and temp array to kepp track of it..some memory mgmt is required here)

Thanks a lot

Re: ListBox ValueMember

rah_sin10-May-06 23:23

rah_sin

10-May-06 23:23

try out following codes

for(int i=0;i < listBox1.Items.Count;i++)
{
if(listBox1.GetSelected(i))
{
MessageBox.Show("",listBox1.GetItemText(listBox1.Items[i]));
}

}

rahul

-- modified at 5:25 Thursday 11th May, 2006

Re: ListBox ValueMember

adityap10-May-06 23:54

adityap

10-May-06 23:54

This would work absolutely fine, but you did not get my problem

I am displaying some value in the listbox and actually require some different value, say for e.g. i am showing names in the box whereas if the user selects a name i am retriving the corresponding employee ID for that name. Now this scenario is possible through ValueMember and DisplayMember property of ListBox.
DisplayMember = name
ValueMember = empId

Now the code which you gave me works fine if i need to retrive the DisplayMembers from listbox..

My question though,here was i needed the ValueMembers to corresponding selection

Thanks a lot

-- modified at 6:14 Thursday 11th May, 2006

File lock problem with Image.FromFile()

Stefan Spenz10-May-06 21:18

Stefan Spenz

10-May-06 21:18

Hi,

when I load an image using this

Bitmap bitmap = (Bitmap)Image.FromFile(pic.Path),

it is not possible to delete the file afterwards, unless you exit the program. I tried to call .Dispose() on the object, but it seems like a bug in the FromFile method.

I found out a workaround

Bitmap origbmp = new Bitmap(pic.Path);<br />
Bitmap bitmap = new Bitmap(origbmp);<br />
origbmp.Dispose();

.

I keep working with the copy of the original bitmap as it's not locked anymore.

But, loading an image using Bitmap's constructor, it's impossible to load animated GIFs as it seems that Bitmap doesn't support them.

Now, how can I use animated GIFs and other image formats AND be able to delete the file afterwards?

Thx Big Grin | :-D

Stefan

Re: File lock problem with Image.FromFile()

Guffa10-May-06 21:36

Guffa

10-May-06 21:36

Please don't cross post.

---
b { font-weight: normal; }

Re: File lock problem with Image.FromFile()

Dave Kreskowiak11-May-06 3:41

Dave Kreskowiak

11-May-06 3:41

Don't pat yourself on the back too hard. This has been known for at least 4 years now, and it's not exactly a bug. Though, some people would probably argue that it is.

An eaiser method would be to load the bitmap from a FileStream instead of creating two Bitmaps to get one. You can read more about it in this[^] KB article on MSDN.

Dave Kreskowiak
Microsoft MVP - Visual Basic

Re: File lock problem with Image.FromFile()

Stefan Spenz11-May-06 4:12

Stefan Spenz

11-May-06 4:12

Dave Kreskowiak wrote:
This has been known for at least 4 years now, and it's not exactly a bug. Though, some people would probably argue that it is.

When you call .Dispose() and the handle won't get free, it's a bug!

Dave Kreskowiak wrote:
You can read more about it in this[^] KB article on MSDN.

Thank you, that worked! Smile | :)

Regards,
Stefan

how to implement Audio/video chatting using remoting concept in c#.net

deepak__sharma10-May-06 21:06

deepak__sharma

10-May-06 21:06

Hi to all
I am working on a project of developing client/chat server software in .net. The textual chatting software has been devoloped and is working well. But now I have been asked to add another feature of audio/video conferencing(chatting) into the chatting software. But i have no clues. Can anybody suggest me resources on net or any guideline..plz help.

-- modified at 7:40 Thursday 11th May, 2006

IP problem

haseeb_saeed10-May-06 20:40

haseeb_saeed

10-May-06 20:40

hi...
i just wanted to make an ftp client without making an ftp server... actually wanted to make a client that downloads files from an ftp server some where... now the problem that i am facing is that i can't get an ip to where i can submit my requests on port 20.... plz provide help in this regard that is ... is it possible to only develop a client and not a server... secondly wat ip would be used in this regard...
thanx

haseeb

Re: IP problem

albCode10-May-06 20:51

albCode

10-May-06 20:51

make googleing

Re: IP problem

Guffa10-May-06 22:56

Guffa

10-May-06 22:56

What do you mean? If you want to download files from an FTP server, you have to know what server it is you want to download from.

---
b { font-weight: normal; }

Multiple Icons in Icon File

redfish3410-May-06 18:45

redfish34

10-May-06 18:45

This is for a freeware application. I am using the Nullsoft Installer and trying to customize it. I have to make an icon file with a number of icons in it that match a specification.

Three of the icons required have to have 16 Million colors. This is a problem. I use VS 2003 to create the icon file. VS 2003 only supports icons up to 256 colors. I know of no other tool that can make an icon file with multiple icons.

How do i do this?

Re: Multiple Icons in Icon File

DigitalKing10-May-06 20:30

DigitalKing

10-May-06 20:30