What is the equivalent C# syntax of void SomeFunction( array<object^>^ &updatelist) - C# Discussion Boards

#realJSOP17-Dec-08 9:17

17-Dec-08 9:17

Has anyone suggested to you yet that you should put a UserControl on each tab page that contains that tab page's controls so you can have discreet access to all the controls on a given page?

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Credentials

CodingYoshi17-Dec-08 7:03

CodingYoshi

17-Dec-08 7:03

Can I run different parts of the same application with different credentials? I need to change the credentials back and forth at runtime. Is this possible? What other reccommendations do you have?

Re: Credentials

Pete O'Hanlon17-Dec-08 8:58

Pete O'Hanlon

17-Dec-08 8:58

Yes, you can - but why do you need to do this? There are very few circumstances where you should have to do this.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

My blog | My articles | MoXAML PowerToys

Re: Credentials

CodingYoshi17-Dec-08 12:07

CodingYoshi

17-Dec-08 12:07

I am writing an application which reads files in a network of over 200 pcs--let's call this networkX. In order to read these files, the app will be installed on one of these pcs. The app also needs to grab data from a SQL Server which is on a different network--networkY. Therefore, when I am grabbing data from the sql server I have to first login to networkY, then to the sql server. Afterwards, the rest of the app will run under the credentials for networkX and read the files. Once all the files are read (actually some as it is threaded) then credentials will switch to networkY to dump the data and back and forth.

I don't know too much about networks, but the network admin told me this is the only feasible option.

Re: Credentials

Eddy Vluggen18-Dec-08 4:55

Eddy Vluggen

18-Dec-08 4:55

CodingYoshi wrote:
I don't know too much about networks, but the network admin told me this is the only feasible option.

Tell your network-administrator to create a new roaming user with the appropriate rights for both networks Smile | :)

Or would that count as "not feasible"?

I are troll Smile | :)

how can i write in Excel files and create spreadsheets using C# and

ahmedhassan9617-Dec-08 6:24

ahmedhassan96

17-Dec-08 6:24

Hi Every Body
i want know how can i write in excel files
ex:
i want write 3 words only each word i want it in seperate column
and i want to rename inner sheets from "Sheet1" to "xxx"
and create another sheet too

plz can any body help me ??

Re: how can i write in Excel files and create spreadsheets using C# and

Pr@teek B@h!17-Dec-08 7:29

Pr@teek B@h!

17-Dec-08 7:29

Go to this link:
http://social.msdn.microsoft.com/Forums/en-US/csharpgeneral/thread/ef11a193-54f3-407b-9374-9f5770fd9fd7/

Also, try this method as well:
http://codebetter.com/blogs/peter.van.ooijen/archive/2005/10/20/133409.aspx

Hope this helps Smile | :)

,

Prateek

What is the equivalent C# syntax of void SomeFunction( array<object^>^ &updatelist)

s196675m17-Dec-08 6:22

s196675m

17-Dec-08 6:22

<br />
        void SomeFunction( array<Object^>^ &updatelist)<br />

The above function is written using in VC++ managed systax.
The equivalent of

<br />
 array<Object^>^<br />
 is Object[]<br />

I like to know what is the equalalent systax in C#.

Important: There is a address symbol before the argument name, which means passing an array by reference so that the array can be change from inside the function.

Any help is appreciated
Thank you

Re: What is the equivalent C# syntax of void SomeFunction( array<object^>^ &updatelist)

Bram Fokke17-Dec-08 7:03

Bram Fokke

17-Dec-08 7:03

I believe this is what you are looking for:

void SomeFunction(ref object[] updateList) {
    if(updateList == null) {
        updateList = new object[10];
    }
}

Re: What is the equivalent C# syntax of void SomeFunction( array<object^>^ &updatelist)

s196675m17-Dec-08 9:54

s196675m

17-Dec-08 9:54

thank you for your suggession.

Actually I should rephrase my words. The VC++ function resides in a dll. when I tried to call this function from C# code, the intellisence showed me the following function signature in C#

<br />
   void SomeFunction( object[]* obj);<br />

Now my question is ,how to pass a pointer to an array of object in C#.

Suppose I have the following array and I want to pass this array to the above function.

<br />
object[] obj = new object[4];<br />

This array will be modified in the dll and should reflect the modification in the C# program.

Thank you.

objOleDbDataAdapter.Fill(objDataSet, tableName); with sybase

codeadair17-Dec-08 5:02

codeadair

17-Dec-08 5:02

HI,all.
Today, when i want to get data from sybase table.
i have puzzled with a strang thing.
just like the title. when the program runs to the point, my program dipped into it. the program will not run to the next statement and also with no error threw out.
what is wrong? how could i get data from sybase table as i getting from oracle.

by the way,i could do insert,update,delete operating in my program.and one thing else,when i use oleDbDataReader to read data from sybase table, another problem happens,when i do "myReader.Close();".the same thing happens,the program will not go to next statement.

Here is my part codes:

public int LoadDataSetFromSYBASE(string sql, string tableName, ref DataSet objDataSet)
{
this.sybase_Connect();
int iCount = -1;

OleDbDataAdapter objOleDbDataAdapter = new OleDbDataAdapter(sql, this.sybase_con);
try
{
iCount = objOleDbDataAdapter.Fill(objDataSet, tableName);
}
catch(Exception e)
{
throw (new Exception("Error in LoadDataSetfromSYBASE method. " + e.Message));
}
finally
{
this.sybase_Disconnect();
}

return iCount;
}

public void LoadDataFromSYBASE(string sql,object obj)
{
using (OleDbConnection connection = new OleDbConnection(sybase_ConnectionString))
{
OleDbCommand command = new OleDbCommand(sql, connection);

connection.Open();
OleDbDataReader reader = command.ExecuteReader();

reader.Read();
obj=reader[0];
reader.Close();
}
}

MSN:msnadair@hotmail.com
Skype:skyadair

is it possible to import a dll file which was developed my C# in to a asp.net application?

MS Lee17-Dec-08 4:22

MS Lee

17-Dec-08 4:22

is it possible to import a dll file which was developed my C# in to a asp.net application?

self confidence+hard work=SUCCESS

Re: is it possible to import a dll file which was developed my C# in to a asp.net application?

Pete O'Hanlon17-Dec-08 4:33

Pete O'Hanlon

17-Dec-08 4:33

Yes. You simply add a reference to it.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

My blog | My articles | MoXAML PowerToys

Re: is it possible to import a dll file which was developed my C# in to a asp.net application?

Paul Conrad17-Dec-08 5:46

Paul Conrad

17-Dec-08 5:46

Don't cross post, picking one forum shall be fine.

"The clue train passed his station without stopping." - John Simmons / outlaw programmer

"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

"Not only do you continue to babble nonsense, you can't even correctly remember the nonsense you babbled just minutes ago." - Rob Graham

Re: is it possible to import a dll file which was developed my C# in to a asp.net application?

MS Lee17-Dec-08 17:57

MS Lee

17-Dec-08 17:57

thanks

self confidence+hard work=SUCCESS

Assigning a null value

ArielR17-Dec-08 2:11

ArielR

17-Dec-08 2:11

How can assign a null value to a field that is integer but allows null value.?

int? nullval = null;
mydataSet.mytable[myBindingSource.Position].myIntField = nullval ;

isn't found.....

Re: Assigning a null value

User 665817-Dec-08 2:13

User 6658

17-Dec-08 2:13

Have you tried DBNull.Value?

regards

modified 12-Sep-18 21:01pm.

Re: Assigning a null value

ArielR17-Dec-08 2:16

ArielR

17-Dec-08 2:16

yes, when compile have this error:
"cannot implicitly convert type 'System.DBNull.value' to int"

Re: Assigning a null value

Dave Kreskowiak17-Dec-08 2:24

Dave Kreskowiak

17-Dec-08 2:24

Of course not. You have to rewrite that little bit of assignment code you posted to check for a null value in the int, and then, if null, you have to assign DBNull.Value to your database column.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

Re: Assigning a null value

ArielR17-Dec-08 4:51

ArielR

17-Dec-08 4:51

I solved it that way...

mydataSet.mytable[myBindingSource.Position].SetmyIntFieldNull();

Thank you very much...

Re: Assigning a null value

PIEBALDconsult17-Dec-08 2:59

PIEBALDconsult

17-Dec-08 2:59

You don't need the local variable.

How to pass parameter with quate to crystal reports from a C# (winform) application

RamiAtia17-Dec-08 1:46

RamiAtia

17-Dec-08 1:46

Hello,
How to pass parameter to crystal reports from a C# (winform) application when my parameter is a string type and contain quate or double quate charecter?
I keep getting error "Error in formula" when it contains quate or double quate.

My parameter name is Address and the address contain double quate sign

Thanks in advanced

Re: How to pass parameter with quate to crystal reports from a C# (winform) application

SPanicker*17-Dec-08 1:50

SPanicker*

17-Dec-08 1:50

Try providing ASCII values for the double quotes or precede it with escape charachters.

Regards,
SPanicker.

Re: How to pass parameter with quate to crystal reports from a C# (winform) application

RamiAtia17-Dec-08 1:57

RamiAtia

17-Dec-08 1:57

No, It doesn't work.
I keep getting the same error

Re: How to pass parameter with quate to crystal reports from a C# (winform) application

SPanicker*17-Dec-08 2:19

SPanicker*

17-Dec-08 2:19

Can you please provide few lines of the code where u get the error?

Regards,
SPanicker.

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