Pyro Joe14-Jul-05 10:36

14-Jul-05 10:36

hi, I'm making a simple download application. How do I get information about the file before I download it such as its size and name (without all the http information and such)? Also, in many download managers there is the option to download the rest of the file later, how is this done, I'm not asking for the rediculous amount of code it would take, but could you point me in the right direction? Thanks,
Stephen

Re: web file properties

iliyang14-Jul-05 10:42

iliyang

14-Jul-05 10:42

Well, it is all done using the HTTP headers. One tells you the Content-Length,
other tells you the Content-Type, etc. And wneh you make an HTTP request, using
another HTTP header (don't remember the exact name) you can tell the offset
from which you want to receive tha data. That's it. Just find e good HTTP reference
and you'll be OK.

Cheers Wink | ;)

Re: web file properties

DavidNohejl14-Jul-05 12:15

DavidNohejl

14-Jul-05 12:15

http://www.codeproject.com/csharp/CoolDownloader.asp[^]

David

Re: web file properties

Ming_Lei14-Jul-05 12:22

Ming_Lei

14-Jul-05 12:22

Using C#, there's FileInfo class that can be instanciated. It gives all the informaion of a file, including size and date created, ect. For the download resume, there is a code at http://www.csharphelp.com/archives/archive9.html[^] that would give some insight of how to do it.

==== Lei Ming 2004 =====
====================

Referencing Code-Behind DLL from the GAC

kmaclean14-Jul-05 10:21

kmaclean

14-Jul-05 10:21

After much travail, I've finally got my ASP.NET project referencing all of its components when they're stored in the GAC - with one exception. For some reason, the compiler cannot find the "MyApplication.DLL", into which all of the Code-Behind assemblies are compiled.

I've verified that this file is strong-named properly, and the entry into the web.config file is identical to all of the others. A couple of hours worth of research hasn't turned up any reason why this file might be different from other DLLs, but I was hoping someone might have a suggestion.

Any help is greatly appreciated.

ListView and LVM_GETSUBITEMRECT problem, help please :(

iliyang14-Jul-05 10:15

iliyang

14-Jul-05 10:15

I'm stuck.
I'm writing a custom drawn ListView and I need to draw the subitems
of each item. So the cleanest way to get the subitem bounds is to send
an LVM_GETSUBITEMRECT message. But it works well only for indexes greater than 0.
This is also noted in MSDN. The big trouble comes when the columns are reordered
by the user. No matter what, LVM_GETSUBITEMRECT for index 0 always returns the bounds,
as if it was the leftmost column. For all other indexes LVM_GETSUBITEMRECT always
works fine in every case. How should I get the proper bounds for subitems at index 0?

Problem with ShowDialog()

Kamrul Hasan14-Jul-05 9:55

Kamrul Hasan

14-Jul-05 9:55

Hello,
I am very much new to C# programming. The problem is I am
facing 'SEHException' using ShowDialog() method of Form Class.

I am using a form as Dialog from a MDIChild Form. I don't know why
it is happenging. But there is no problem if i use 'ShowDialog()'
from a non MDIChild form. How can i use the method from a MDIChild
form ?

sorry for my english.

thanks in advance.

Re: Problem with ShowDialog()

Dave Kreskowiak14-Jul-05 12:01

Dave Kreskowiak

14-Jul-05 12:01

You don't! MDI Children are not meant to be used a modal dialogs! Use a normal form if your putting up a modal dialog.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Multiple XML Declarations

hdn6830714-Jul-05 9:09

hdn68307

14-Jul-05 9:09

A process that I have no control over creates a file that contains multiple XML declarations. Thinking I have to open file and remove all but first declaration and save to be able to read XML.
Do I need to do this, or is there another way to deal with multiple XML declarations in same file?
If I need to open file and manually remove, please help with how I may implement this.
Thank you.

Re: Multiple XML Declarations

Guffa14-Jul-05 9:26

Guffa

14-Jul-05 9:26

You can read the file as a regular text file yourself, divide the text into the different xml declarations, and feed one of them or all of them into xml documents using the LoadXml method.

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

Open Form Problem

Expert Coming14-Jul-05 8:54

Expert Coming

14-Jul-05 8:54

This code doesn't seam to work, it opens both as planned, but the frmCreate opens for 1/4 second or so, help please.

The code:

private void mnuLogin_Click(object sender, System.EventArgs e)<br />
		{<br />
			Form openform = new frmCreate();<br />
			this.Close();<br />
			openform.Show();<br />
		}

Re: Open Form Problem

Dave Kreskowiak14-Jul-05 9:16

Dave Kreskowiak

14-Jul-05 9:16

Of course it does! You closed the form (this) that is the only thing holding a reference to the new form you created. If Form1 creates Form2 and show it, then Form1 closes, Form2 is going to close it since nothing else is holding a reference to Form2.

You can't "transfer" control of your application from form to form to form. You have to have a "parent" form that creates your other forms to keep their references alive. Those "child" forms can have their own "child" forms, and so on down the line. It'll look like a hierarchy when your done.

          Startup Form
               |
       +-------+-------+
       |               |
     Form2           Form3
       |
  +----+----+
  |         |
Form4     Form5

In this example, if you Close Form2, Forms4 and 5 are going to vanish too, because Form2 created and was holding the references for 4 and 5. In your code, you did just that. Your (this) form created a new form object called frmCreate, then killed itself, taking the newly created form with it.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Then how?

Expert Coming14-Jul-05 12:20

Expert Coming

14-Jul-05 12:20

How do I HIDE the form or something so frmCreate can be seen?

Re: Then how?

grim_zax14-Jul-05 12:33

grim_zax

14-Jul-05 12:33

try the opacity property

its me =Þ
grim zax

Re: Then how?

Dave Kreskowiak14-Jul-05 16:28

Dave Kreskowiak

14-Jul-05 16:28

You don't look through the Intellisense list much, do you? You just said it yourself -> this.Hide()[^]

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Re: Then how?

Expert Coming14-Jul-05 17:45

Expert Coming

14-Jul-05 17:45

I said that as I found it in the list lol.

pdf

(Steven Hicks)ⁿ⁺¹14-Jul-05 8:53

(Steven Hicks)ⁿ⁺¹

14-Jul-05 8:53

What is the best way to:
1. Show a pdf
2. grab a pdf's structure (pages/chapters etc)
3. Grab text only

I've seen many libraries even the Adobe SDK, which claims support for VB C++, I'm just courious if anyone else has looked at working with PDF viewing and had a .net tool to recommend.

-Steven Hicks

CPA

CodeProjectAddict

Actual Linux Penguins were harmed in the creation of this message.

More tutorials: Ltpb.8m.com: Tutorials |404Browser.com (Download Link)

Re: pdf

Christian Graus14-Jul-05 11:21

Christian Graus

14-Jul-05 11:21

There are some open source C# tools on SourceForge. When I had to do this, I was changing fields in one PDF only, which we generated, so I created a non compressed PDF and changed the text with string replacement. The PDF specification is pretty logical and easy to get, if you need more than that, it may be worth your while to look at it, also.

Christian Graus - Microsoft MVP - C++

Converting string value to System.IO.Stream

Neel0714-Jul-05 6:27

Neel07

14-Jul-05 6:27

Hi
I want to convert one string input in one of my function in c# to System.IO.Stream object but it gives me conversion error in 2nd line of the below function

static myFunc(string strInput)
{
Stream objStream;
objStream=(Stream)strInput;
}

would much appreciate any help

Thank you

Share knowledge to enhance your learning

Re: Converting string value to System.IO.Stream

S. Senthil Kumar14-Jul-05 7:07

S. Senthil Kumar

14-Jul-05 7:07

You can't expect to convert a type to something else just like that. If you can do with a Reader, you can try the StreamReader class.
Or if you absolutely need a Stream, something like this will work

string obj = "Senthil rocks";
Stream s = new MemoryStream(Encoding.ASCII.GetBytes(obj));

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

PasteSpecial() in Word

rivi2k14-Jul-05 6:09

rivi2k

14-Jul-05 6:09

Hey all...im trying to paste something as "enhanced metafile" but i dont know what parameters to set ...anyone know of what they are or where i can find documentation??

WordApp.Selection.PasteSpecial(ref what??????????????????????)

Thanks Smile | :)

FIXED IT:

object Placement=Word.WdOLEPlacement.wdInLine;
object DataType = Word.WdPasteDataType.wdPasteEnhancedMetafile;

WordApp.Selection.PasteSpecial(ref missing,ref missing,ref Placement,ref missing,ref DataType,ref missing,ref missing);

distinct tree node identifiers

Anonymous14-Jul-05 6:07

Anonymous

14-Jul-05 6:07

trying to create child nodes from db, i have 5 entries in the db listed in order as show:
hello1
hello2
hello5
user1
user2

when i create the child node it only shows "hello1", i can get it to change from "hello1" to "hello2" if i change my query, but they still are all the same listing.
here it the code:

	treeView1.Nodes.Clear();
dataConnection.Open();
TreeNode dbnode = new TreeNode("Cashier User Names");
TreeNode dbnode1 = new TreeNode();
string dbName = dataConnection.DataSource.ToString();
treeView1.Nodes.Add(dbnode);
dataCommand.Connection = dataConnection;
dataCommand.CommandText = "SELECT id ";	
dataCommand.CommandText += "FROM people WHERE access_level = 'Cashier' ORDER BY id DESC";
dataReader = dataCommand.ExecuteReader(CommandBehavior.CloseConnection);
while (dataReader.Read())
{
dbnode1.Tag = dataReader.GetValue(0).ToString();
dbnode1.Text = dataReader.GetString(0);
dbnode.Nodes.Add(dbnode1);
treeView1.ExpandAll();
}

please help as i'm struggling to learn this treeview
there isn't much written info on them that i can find

Unsure | :~

Re: distinct tree node identifiers

mav.northwind14-Jul-05 9:27

mav.northwind

14-Jul-05 9:27

You're modifying the same node instance over and over again, no wonder you only see 1 node...
You'll have to call new TreeNode() for every return from your dataReader.

Regards,
mav

Re: distinct tree node identifiers

Anonymous14-Jul-05 10:50

Anonymous

14-Jul-05 10:50

had the new treenode in the wrong spot....
now it works like this:

TreeNode dbnode1 = new TreeNode();
dbnode1.Tag = dataReader.GetValue(0).ToString();
dbnode1.Text = dataReader.GetString(0);
dbnode.Nodes.Add(dbnode1);
treeView1.ExpandAll();

thanks...

Send struct via NET Remoting

Iurii Okhmat14-Jul-05 6:03

Iurii Okhmat

14-Jul-05 6:03

Hi all, give me a bit of advise:
How to send such a kind of struct:

public struct SomeStruct<br />
{<br />
public string strData1;<br />
public long lngData2;<br />
public long lngData3;<br />
}

using .NET Remoting (HTTP prtocol being used)...
or gime, plz, some references where i can find it!

Best regards, FLUID

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