Error in Mail sending - C# Discussion Boards

9-Oct-07 2:01

According to Microsoft compressed folders in windows uses the following .dlls
1) Dunzip32.dll: Responsible for decompressing files stored in a compressed folder or file when they are copied, extracted, or executed.
2) Dzip32.dll: Responsible for compressing files when they are put into a compressed folder or file.
I need these dlls for a Console project that directly uses them to compress and decompress .zip files.
But when i try to add any of the above dll's as a reference to my project in Visual Studio 2005 i get the ERROR: Reference could not be added. Please make sure that the file is accessible and that it is a valid assembly or COM object. Confused | :confused:

Can anybody help me ??? Frown | :(

================================
Thanks();

Andrei Ungureanu9-Oct-07 2:10

Andrei Ungureanu

9-Oct-07 2:10

You cannot add them as references because they are written in unmanaged code, so you need to import the methods from those libraries using the DllImport attribute.

Hope it helps.

There are 10 kinds of people: those who understand binary and those who don't

JSSUML9-Oct-07 2:41

9-Oct-07 2:41

Thanks a lot.
But I think by using System.IO.Compression the same functionality of Dunzip32.dll can be achieved. Smile | :)

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Wirth's law: Software gets slower faster than hardware gets faster.

Colin Angus Mackay9-Oct-07 2:23

Colin Angus Mackay

9-Oct-07 2:23

JSSUML wrote:
Can anybody help me ???

Instead of trying to use these DLLs directly. Why not have a look in the System.IO.Compression[^] namespace for managed classes that do the same work.

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JSSUML9-Oct-07 2:43

Re: Error in Mail sending

9-Oct-07 2:43

Thanks. that works well Smile | :)

================================
Wirth's law: Software gets slower faster than hardware gets faster.

Error in Mail sending

Exelioindia9-Oct-07 2:00

Exelioindia

9-Oct-07 2:00

Hi all,

I am having an error and an doubt.

In my applicaiton i am sending automatic mail. In that whn i use

SmtpMail.SmtpServer = " localhost" , there is no issue for me. But while using the

SmtpMail.SmtpServer = " smtp.your-server.com" , mail is not sending/reciving for me. I got the sample from some other forums.

Plz some one explaion wht is the problem, and how to solve i. Also suggest me in which suitation i have to use localhost and hich suitation i have to use smtp.servername.com.

Thanks in advance

Know is Drop, Unknown is Ocean

JSSUML9-Oct-07 2:04

A situation where you have to use goto

9-Oct-07 2:04

First check to see if the "smtp.your-server.com" is reachable from your workstation.
Try ping smtp.your-server.com from command prompt.
If it does not suceed that means there is no direct connection to smtp.your-server.com and you will probably have to use a relay server to send your mail.

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Thanks();

Excel to DataTable

vijay_chaudhary9-Oct-07 1:59

vijay_chaudhary

9-Oct-07 1:59

Hi,
while tranporting from eccel file to datatable all the fields are coming correctly except one field which is not coming if it is having numbers, if it is having string than it also coming correctly.
while other columns are coming correctly in all the cases either it is having string or numbers.

Thanks in advance,

Vijay Kumar
Software Engineer

Re: Excel to DataTable

Paul Conrad12-Oct-07 13:36

Paul Conrad

12-Oct-07 13:36

Have you fixed this yet?

"Any sort of work in VB6 is bound to provide several WTF moments." - Christian Graus

Bummer89-Oct-07 1:57

Bummer8

9-Oct-07 1:57

foreach(DataRow dr in dataset.Tables["principal"].Rows)<br />
{<br />
    if (dr["name"].ToString()==szPrincipal_name)<br />
    {<br />
        nPrincipal_Id = Convert.ToInt32(dr["principal_Id"].ToString());<br />
        bEncontrou = true;<br />
        break;<br />
    }<br />
    nPrincipal_Id++;<br />
}

_labelRowDeleted:<br />
    foreach (DataRow myRow in dataset.Tables["grant"].Rows)<br />
    {<br />
        if (myRow["principal_Id"].ToString() == nPrincipal_Id.ToString())<br />
        {<br />
            myRow.Delete();<br />
            goto _labelRowDeleted;<br />
        }<br />
    }

Solutions are welcome.

Andrei Ungureanu9-Oct-07 2:07

Andrei Ungureanu

9-Oct-07 2:07

How about this?

bool finished = false;
while (!finished)
{
 try
 {
  foreach (DataRow myRow in dataset.Tables["grant"].Rows)
  {
   if (myRow["principal_Id"].ToString() == nPrincipal_Id.ToString())
   {
    myRow.Delete();
    throw new Exception();
   }
  }
  finished = true;
 }
 catch
 {
  finished = false;
 }
}

Just an ideea Wink | ;)

There are 10 kinds of people: those who understand binary and those who don't

Colin Angus Mackay9-Oct-07 2:10

Colin Angus Mackay

9-Oct-07 2:10

You should NEVER throw an exception unless it is an EXCEPTIONal case (the hint is in the name). This is plainly not an exceptional case. This is an even worse solution to the one that calls goto.

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Colin Angus Mackay9-Oct-07 2:09

Colin Angus Mackay

9-Oct-07 2:09

Bummer8 wrote:
_labelRowDeleted:
foreach (DataRow myRow in dataset.Tables["grant"].Rows)
{
if (myRow["principal_Id"].ToString() == nPrincipal_Id.ToString())
{
myRow.Delete();
goto _labelRowDeleted;
}
}

do
{
    bool restart = false;
    foreach (DataRow myRow in dataset.Tables["grant"].Rows)
    {
        if (myRow["principal_Id"].ToString() == nPrincipal_Id.ToString())
        {
            myRow.Delete();
            restart = true;
            break;
        }
    }
}
while (restart == true);

Although I'm not entirely sure why you are starting the loop over again when you are deleting a row.

I would imagine the following would have the same effect and be more efficient (by traversing the rows backwards)

DataRows rows = dataset.Tables["grant"].Rows;
for(int i=rows.Length-1; i>=0; i--)
{
    DataRow myRow = rows[i];
    if (myRow["principal_Id"].ToString() == nPrincipal_Id.ToString())
    {
        myRow.Delete();
    }
}

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* Glasgow: db4o: An Embeddable Database Engine for Object-Oriented Environments, Mock Objects, SQL Server CLR Integration, Reporting Services ...

My website

JSSUML9-Oct-07 2:09

9-Oct-07 2:09

try this...

do
{
foreach (DataRow myRow in dataset.Tables["grant"].Rows)
{
if (myRow["principal_Id"].ToString() == nPrincipal_Id.ToString())
{
myRow.Delete();
continue;
}
}
break;
}while(true);

================================
Thanks();

Guffa9-Oct-07 2:26

Guffa

9-Oct-07 2:26

Why start over every time you find a row? Just store the rows you want to delete, and do it separately.

List<DataRow> removal = new List<DataRow>();
foreach (DataRow row in dataset.Tables["grant"].Rows) {
   if ((int)row["principal_Id"] == nPrincipal_Id) {
      removal.Add(row)
   }
}
foreach (DataRow row in removal) {
   row.Delete();
}

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

Bummer89-Oct-07 4:13

Bummer8

9-Oct-07 4:13

Well, none of your solutions work. most give errors. Maybe guffa's will, if he get's his code working (<DataRow> <--- what's this supposed to be).