Re: what is incorrect in my code? - C# Discussion Boards

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Re: Serializing a class that contains a TimeSpan memeber

Lucian.Palcu10-Oct-07 4:49

Lucian.Palcu

10-Oct-07 4:49

Hi!

I use XmlSerializer and your link helped me.Thank you!
Do you have any ideas about the "Serializing an interface in C#" from this page
http://www.codeproject.com/script/comments/forums.asp?forumid=1649&select=2265068&df=100&fr=226[^] ?
Thanks,
Lukas

Re: Serializing a class that contains a TimeSpan memeber

TJoe10-Oct-07 5:35

TJoe

10-Oct-07 5:35

See my reply to that thread.

Take care,
Tom

-----------------------------------------------
Check out my blog at http://tjoe.wordpress.com

Looping through property

Marcel Vreuls (www.agentbase.nl)10-Oct-07 4:16

Marcel Vreuls (www.agentbase.nl)

10-Oct-07 4:16

Hi,

I have to following nagging problem. I have a normal form where i put at runtime a usercontrol. This usercontrol has a property called RE_ID. when adding the usercontrol to the form

<br />
            usxClientDetail objControl = new usxClientDetail();<br />
            objControl.Dock = DockStyle.Fill;<br />
            this.tabPage1.Controls.Add(objControl);<br />
<br />

i would like to call that property so the usercontrol gets filled with the correct data. But there is no way i can access that

<br />
<br />
foreach (UserControl ctrl in tabPage1.Controls)<br />
            {<br />
                if (ctrl.Name == "usxClientDetail")<br />
                {<br />
                    foreach (Control ct in ctrl.Controls)<br />
                    {<br />
                        MessageBox.Show(ct.Name.ToString());<br />
                    }<br />
               }<br />
             }<br />

i can loop through everything but not through the propertycollection. At least it seams Smile | :)

...

any ideas suggestions how to access that public property on the form at runtime is welcome :->

Kind regards,

Marcel Vreuls

http://www.marcelvreuls.com

<>

Re: Looping through property

TJoe10-Oct-07 4:22

TJoe

10-Oct-07 4:22

You can use the "is" keyword and cast it to the appropriate type, like so:

foreach (UserControl ctrl in tabPage1.Controls) {
    if (ctrl is usxClientDetail) {
        usxClientDetail clientDetail = ctrl as usxClientDetail;
        // Access properties off of clientDetail
    }
}

Take care,
Tom

-----------------------------------------------
Check out my blog at http://tjoe.wordpress.com

Re: Looping through property

Marcel Vreuls (www.agentbase.nl)10-Oct-07 4:41

Marcel Vreuls (www.agentbase.nl)

10-Oct-07 4:41

Thanks that works. I costed me 2 hours today en asking at CP 5 minutes Smile | :)

..

again thnx.....

Kind regards,

Marcel Vreuls

http://www.marcelvreuls.com

<>

what is incorrect in my code?

8213001210-Oct-07 4:00

82130012

10-Oct-07 4:00

Hi friends
I wrote follow code to send an image in network:

<br />
BinaryWriter myBR = new BinaryWriter(MyNetworkStream);<br />
myPic.Save(MyMemoryStream, System.Drawing.Imaging.ImageFormat.Jpeg);<br />
byte[] arrImage;<br />
arrImage = MyMemoryStream.GetBuffer();<br />
myBR.Write(arrImage);<br />

And this for receive it:

<br />
MemoryStream memstr = new MemoryStream();<br />
            byte pic;<br />
            BinaryReader br = new BinaryReader(myNetworkStream);<br />
            bool loop = true;<br />
            while (loop)<br />
            {<br />
                try<br />
                {<br />
                    pic= br.ReadByte();<br />
                    memstr.WriteByte(part);<br />
                }<br />
                finally<br />
                {<br />
                    loop = false;<br />
                }<br />
            }<br />
            byte[] picture = memstr.GetBuffer();<br />

but in receive part, when it arrive to "pic = br.ReadByte();", it do no thing and there is no error.

can you tell me what is incorrect code?

Re: what is incorrect in my code?

Judah Gabriel Himango10-Oct-07 4:06

Judah Gabriel Himango

10-Oct-07 4:06

Maybe I'm not understanding your problem, but why are you using a binary reader? Just use myNetworkStream.ReadByte()

Tech, life, family, faith: Give me a visit.
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Judah Himango

Re: what is incorrect in my code?

Guffa10-Oct-07 5:56

Guffa

10-Oct-07 5:56

An array of bytes is not represented the same way as individual bytes by the BinaryWriter. You can't write the data as an array and read it as individual bytes.

Why are you using a BinaryWriter and BinaryReader at all? Why not write and read the data directly?

---
single minded; short sighted; long gone;

Re: what is incorrect in my code?

Ennis Ray Lynch, Jr.10-Oct-07 9:45

Ennis Ray Lynch, Jr.

10-Oct-07 9:45

Your loop ~~exists~~exits on the first loop every time. Finally is always executed after a try block. What you intended was likely catch{loop = false;} but you need a different understanding of streams, instead.

byte[] bytes = new byte[255;]
while((bytesRead = stream.ReadBytes(bytes, 0, bytes.Length)) != 0)
otherStream.Write(bytes, 0, bytesRead);
is a better construct for copying a stream to another. (255 is arbitrary)

Need a C# Consultant? I'm available.

Happiness in intelligent people is the rarest thing I know. -- Ernest Hemingway

Download .net Framework 3.0 SDK

Tomerland10-Oct-07 3:58

Tomerland

10-Oct-07 3:58

Dear gurus,

is it possible to download the complete net-framework-3.0-sdk from anywhere (e.g. as a zip-file)?

If I try to download it from micrsoft, than I only get a small "setup.exe". This one seems to start some downloads by itself in background during installation.

In advance:
Thanks for your advices

Re: Download .net Framework 3.0 SDK

Jimmanuel10-Oct-07 4:15

Jimmanuel

10-Oct-07 4:15

On this[^] page under Instructions you can download the redistributable packages that contains the entire framework instead of just a bootstrapper.

Re: Download .net Framework 3.0 SDK

Tomerland10-Oct-07 4:23

Tomerland

10-Oct-07 4:23

Thanks for your help!

The site you recommended contains only the redistributable package. It is not the complete SDK.

Is there also any site?

Thanks !

Re: Download .net Framework 3.0 SDK

Jimmanuel10-Oct-07 4:32

Jimmanuel

10-Oct-07 4:32

Here?[^] Click the "Continue" button next to "validation required" and a DVD image file will become available for download in the Instructions section - if your Windows validates properly. Is that what you're looking for?

Re: Download .net Framework 3.0 SDK

Tomerland10-Oct-07 19:28

Tomerland

10-Oct-07 19:28

Hallo,

yes it is what I was looking for.

With kind regards
and thank you

Can`t kill focus of button in C# winform

Yanshof10-Oct-07 3:25

Yanshof

10-Oct-07 3:25

Hi,

I have some win form application - and on the Form i have some UserControl that i wrote -
On the Form i define some button to be as "AcceptButton" ( button of the Form and not the button that is on the userControl ).

Now ... when the form is up i always get one of the userControl button as the "AcceptButton" and not the button that i define.

This happen only on one of the userControl - other userControl work fine.

What to do ?

Thanks for any help.

Help regarding deleting files in a directory

anu8110-Oct-07 2:40

anu81

10-Oct-07 2:40

hi all

In my application, i have a treeview consisting of some nodes. when i click a node, i am generating some images
and displaying them in a listview.

i am storing the images temporarily in a folder in the application path.
so everytime a node is clicked,
i need to remove the original images and add the new images.

when i tried to delete the contents of the folder, it says file is in use(which is obvious).

Can anybody suggest me ideas as how to remove the old images from the folder?

Thanks in advance. Smile | :)

Regards

Anuradha

Re: Help regarding deleting files in a directory

Anthony Mushrow10-Oct-07 3:05

Anthony Mushrow

10-Oct-07 3:05

You must have forgotten to close the filestream or something. So all you need to do is make sure you Close() all your streams before deleting all your files.

My current favourite word is: Waffle

Cheese is still good though.

Re: Help regarding deleting files in a directory

anu8110-Oct-07 3:13

anu81

10-Oct-07 3:13

hi,

thanks for your reply. but i am not using filestream class at all.
i used the following code.

foreach (File file in Directory.GetFiles(path))
{
File.Delete(file);
}

Thanks in advance. Smile | :)

Regards

Anuradha

Re: Help regarding deleting files in a directory

Anthony Mushrow10-Oct-07 3:37

Anthony Mushrow

10-Oct-07 3:37

"i am storing the images temporarily in a folder in the application path"

Does that not mean that your creating a new files, and writing to them during runtime? Because if it does, once youve written the file, you need to close the stream.

If the files are already there, then unless you've got them open somewhere, or explorer has them open. They should just delete fine.

If its the latter, go download 'unlocker' and see whats holding your files hostage.

My current favourite word is: Waffle

Cheese is still good though.

Re: Help regarding deleting files in a directory

Aavesh Agarwal10-Oct-07 17:40

Aavesh Agarwal

10-Oct-07 17:40

i think u shuld check the permission of the Folder in which u are storing ur image file.Give the permission of write also.
May be it will work for you. or i m not getting ur question

Thanks and Regards

Aavesh Agarwal

Re: ERROR parameter is not valid

Anthony Mushrow10-Oct-07 3:12

Anthony Mushrow

10-Oct-07 3:12

Im not sure, but what you can do is make sure that your byte array isn't empty. And if thats OK, once you set up your memory stream, make sure that it also, is not empty.

Now, im not savvy with sql databases and whatnot, but, could you not do something like this:

Bitmap img = (Bitmap)cmd27.ExecuteScalar();
pictureBox1.Image = img;

My current favourite word is: Waffle

Cheese is still good though.

Re: ERROR parameter is not valid

NewToAspDotNet10-Oct-07 3:59

NewToAspDotNet

10-Oct-07 3:59

Waffle, thanx for your response...i tried what u said, bud it did'nt help.

System.IO.IOException [modified]

Stevo Z10-Oct-07 2:40

Stevo Z

10-Oct-07 2:40

Hi,

I have a TcpClient connection running and always get this Exception only when running Releas version. I never get this Exception while Debugging same code. Exception always occurs on same place.

System.IO.IOException: Unable to write data to the transport connection: An established connection was aborted by
 the software in your host machine. ---> System.Net.Sockets.SocketException: An established connection was 
aborted by the software in your host machine
   at System.Net.Sockets.Socket.Send(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
   at System.Net.Sockets.NetworkStream.Write(Byte[] buffer, Int32 offset, Int32 size)
   --- End of inner exception stack trace ---
   at System.Net.Sockets.NetworkStream.Write(Byte[] buffer, Int32 offset, Int32 size)
   at System.IO.BinaryWriter.Write(Byte[] buffer)

It is not races... it's run on same thread as application form (at the time when error occurs).

Any suggestions ?

zilo

-- modified at 8:45 Wednesday 10th October, 2007

Re: System.IO.IOException

VirtualVoid.NET12-Oct-07 2:14

VirtualVoid.NET

12-Oct-07 2:14

I've the same problem long time ago, I solved it by turning off firewall and antivirus program Smile | :)

V^irtualV^oid.NET

Re: System.IO.IOException

Stevo Z12-Oct-07 4:10

Stevo Z

12-Oct-07 4:10

I've abandoned that solution and picked another one...

no way I can fix that...

Smile | :)

zilo

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