C# Discussion Boards - CodeProject

WetRivrRat28-Dec-05 8:17

28-Dec-05 8:17

was thinking about this some more...

since the Tag property is of type: object

i can pretty much do whatever i want with it, the question just becomes what is the best thing to do?
or is simply going with a primative(so-to-speak) 0 or 1 value the best option?
Confused | :confused:

string Beautiful;
Beautiful = "ignorant";
label1.Text = "The world is full of " + Beautiful +" people.";

Why is common sense such an un-common comodity?

Re: treeView child restrictions

Darryl Borden29-Dec-05 10:54

Darryl Borden

29-Dec-05 10:54

If you want to determine if a specific treenode level, you can use this...

int treeNodeLevel=1;
TreeNode tn = treenodeToBeTested;
while (tn.Parent != null)
{
tn = tn.Parent;
treeNodeLevel++;
}

You can then say...

if (treeNodeLevel == 3)
{
...do whatever
}

Darryl Borden
Principal IT Analyst
dborden@eprod.com

Re: treeView child restrictions

WetRivrRat29-Dec-05 15:06

WetRivrRat

29-Dec-05 15:06

Thanks,

I'll have to check this out...as i'm not at a point right now to test it...but i will post the results of my testing shortly

string Beautiful;
Beautiful = "ignorant";
label1.Text = "The world is full of " + Beautiful +" people.";

Why is common sense such an un-common comodity?

Re: treeView child restrictions

WetRivrRat29-Dec-05 16:00

WetRivrRat

29-Dec-05 16:00

Works like a champ!

--had to do a little bit of modification as you had the nodelevel declared as a 1 so it would then increment to 4 before ever actually reaching the desired point...so mod it to a 0 rather than 1 and its pretty...course i could have just changed the if == to value to 4, but then it would not have been the soulution i was looking Big Grin | :-D

Thanks a bunch!

string Beautiful;
Beautiful = "ignorant";
label1.Text = "The world is full of " + Beautiful +" people.";

Why is common sense such an un-common comodity?

count decimal point

webhay22-Dec-05 3:51

webhay

22-Dec-05 3:51

Hello all,

How can i count the nuber after the decimal point.

Please Help

Thanks
Hoho

Re: count decimal point

.NetRocker22-Dec-05 5:00

.NetRocker

22-Dec-05 5:00

Can you provide more information? I did not understand what you meant by count the number!!

Re: count decimal point

webhay22-Dec-05 11:14

webhay

22-Dec-05 11:14

Thanks for your reply

I need to count how many numbers after the decimal point for instance if 3.44 or 3.4 i need to count how many number after the decimal point it is now two number in the frist number and one number in the frist number.

Thanks for your time

Best regards,
Hoho

Re: count decimal point

Roy Heil22-Dec-05 6:40

Roy Heil

22-Dec-05 6:40

Very tricky.

The problem is in the datatype you use to represent the number. Floating points don't accuratly represent the number they are supposed to. It could be off by a very small amount. Thus, if you have a number like 17.2, the internal representation may be 17.1999999. Your may want 1, because 17.2 is the real value, or you may want infinity, because the real value repeats for ever.

How important is it that you can do this?

Roy.

Re: count decimal point

mav.northwind22-Dec-05 21:39

mav.northwind

22-Dec-05 21:39

Hello!
One thing that comes to mind is to convert the number to a string and then search for the decimal separator:

int FractionDigits(double d)
{
  string s = d.ToString();
  int i = s.IndexOf(System.Globalization.CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator);
  if (i<0)
    return 0;
  else
    return s.Length-i-1;
}

The maximum number you'll get depends on how double.ToString() formats your number. Usually you'll get up to 15 digits, but that's enough for most practical cases.
Regards,
mav

Resource in C#

Cool^ASL22-Dec-05 2:12

Cool^ASL

22-Dec-05 2:12

Hi,
Please anyone tell me, how can i include an image in my C# project and refer it.
Currently i am referring to a image in my hard drive, but i wish to include it in my project as a resource.

Any help will be appreciated..
Thanks in advance. Smile | :)

*** Who said nothing is impossible? I have been doing it for a long time ***

Re: Resource in C#

Curtis Schlak.22-Dec-05 2:32

Curtis Schlak.

22-Dec-05 2:32

You can check out the "Making it pretty" section of Building the CVS Root File Changing Utility.

In short, you add the image to your project, make it an embedded resource, and then use GetManifestResourceStream to get the image.

"we must lose precision to make significant statements about complex systems."
-deKorvin on uncertainty

Re: Resource in C#

Cool^ASL22-Dec-05 2:46

Cool^ASL

22-Dec-05 2:46

Gee thanks man..
That was a lot of help.
I'll try it out and tell you tomorrow.

Thanks a lot.

*** Who said nothing is impossible? I have been doing it for a long time ***

compiling serviced component strong name error

chriscompton22-Dec-05 1:57

chriscompton

22-Dec-05 1:57

OK. I have followed the simple examples found to produce a C# dll, which I can then use with RegAsm to produce a tlb file....and the end result is that I can call the original C# from within ASP/VB6. This all works fine.

However, if I amend the simple Library project to include a reference to a web service and follow the same steps (Adding a strong name file, compiling and running regasm), I end up with a strong name key error when using RegAsm. I have tried both manually compiling and also from the project.
So, I have tried separately creating a proxy class using wsdl...and then compiling this cs file into a dll, and then setting a reference to this dll in a separate servicedcomponent project. When compiling I get 'Assembly generation failed -- Referenced assembly xyz does not have a strong name'. Therefore I assume I need to apply the strong name separately to the Web Service Reference before compiling my ServicedComponent?

Fine, so I go back to the web consumer cs file, and compile it using csc /target module so that I get a netmodule, and then use Al.exe to try and link the module with the strong name. To use Al.exe I pass in the name of the dll/strong name file....and the 'Unspecified Error' that comes back complains about the original cs file which was used to create the netmodule!

Any ideas?

Re: compiling serviced component strong name error

chriscompton22-Dec-05 2:16

chriscompton

22-Dec-05 2:16

OK, I have managed to run this again and avoid the error from the the Al.exe.

DataAdapter won't fill a DataSet

sonicsqwirl22-Dec-05 1:55

sonicsqwirl

22-Dec-05 1:55

I'm trying to fill a dataset with a DataAdapter.

OracleCommand cmd = new OracleCommand(cmdStr, conn);<br />
OracleDataAdapter oda = new OracleDataAdapter(cmdStr, conn);<br />
			DataSet ds = new DataSet();<br />
			oda.SelectCommand = cmd;<br />
			oda.Fill(ds);

For whatever reason, it gives me this error:

Oracle.DataAccess.Client.OracleException: ORA-00903: invalid table name

Can someone help me?

Stack Trace:

<br />
Line 104:			DataSet ds = new DataSet();<br />
Line 105:			oda.SelectCommand = cmd;<br />
<big>Line 106:			oda.Fill(ds);</big><br />
Line 107:			dgWHR.DataSource = ds;<br />
Line 108:			dgWHR.DataBind();<br />

[OracleException: ORA-00903: invalid table name]<br />
   Oracle.DataAccess.Client.OracleException.HandleErrorHelper(Int32 errCode, OracleConnection conn, IntPtr opsErrCtx, OpoSqlValCtx* pOpoSqlValCtx, Object src, String procedure)<br />
   Oracle.DataAccess.Client.OracleException.HandleError(Int32 errCode, OracleConnection conn, String procedure, IntPtr opsErrCtx, OpoSqlValCtx* pOpoSqlValCtx, Object src)<br />
   Oracle.DataAccess.Client.OracleCommand.ExecuteReader(Boolean requery, Boolean fillRequest, CommandBehavior behavior)<br />
   Oracle.DataAccess.Client.OracleDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)<br />
   System.Data.Common.DbDataAdapter.Fill(DataSet dataSet)<br />
   WhoHasRoutes.WebForm1.Page_Load(Object sender, EventArgs e) in c:\inetpub\wwwroot\ferrellgas\whohasroutes\default.aspx.cs:106<br />
   System.Web.UI.Control.OnLoad(EventArgs e)<br />
   System.Web.UI.Control.LoadRecursive()<br />
   System.Web.UI.Page.ProcessRequestMain()

Thanks in Advance
Scott

Re: DataAdapter won't fill a DataSet

Maqsood Ahmed22-Dec-05 2:04

Maqsood Ahmed

22-Dec-05 2:04

Hello,
It is nothing to do with DataAdapter. It seems that the db query contains invalid table name.

According to ora-codes.com

ORA-00903: invalid table name
Cause: A table or cluster name is invalid or does not exist. This message is also issued if an invalid cluster name or no cluster name is specified in an ALTER CLUSTER or DROP CLUSTER statement.
Action: Check spelling. A valid table name or cluster name must begin with a letter and may contain only alphanumeric characters and the special characters $, _, and #. The name must be less than or equal to 30 characters and cannot be a reserved word.

Maqsood Ahmed - MCAD.net
Kolachi Advanced Technologies
http://www.kolachi.net

Re: DataAdapter won't fill a DataSet

sonicsqwirl22-Dec-05 2:25

sonicsqwirl

22-Dec-05 2:25

My query is a query with a bunch of nested Select statements.

When i run the query in PL/SQL developer it returns results fine. Direct copy / paste.

Re: DataAdapter won't fill a DataSet

Dave Kreskowiak22-Dec-05 6:02

Dave Kreskowiak

22-Dec-05 6:02

Try simplifying the SELECT statement to use fewer nested queries. I don't know for sure, but you might be limited to a single SELECT keyword when using a DataAdapter...? Anyone, feel free to correct me here!

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

-- modified at 12:03 Thursday 22nd December, 2005

Re: DataAdapter won't fill a DataSet

Maqsood Ahmed22-Dec-05 6:33

Maqsood Ahmed

22-Dec-05 6:33

Hello,
Can you paste the db query here. There might be something related to string manipulation in C# or .net related issue.

Cheers.

Maqsood Ahmed - MCAD.net
Kolachi Advanced Technologies
http://www.kolachi.net

RequiredFieldValidator

karthik_dotnet22-Dec-05 1:49

karthik_dotnet

22-Dec-05 1:49

My registration page contains fields,register submit button and also a user control inside this page. i have username, password fields and Login submit button in this user control. in both user control and registration page i have used RequiredFieldValidator. so, when i try to login to my application by providing userid and password it is not entering into the application because it is validating registration page required fields and also if i fill all required fields in registration page and when i click on register submit button the records are not saving it is validating login screen required fields. how do i correct this problem? since i cannot validate fields in javascript because it is a multilingual application. pls. help me out.

Re: RequiredFieldValidator

.NetRocker22-Dec-05 5:04

.NetRocker

22-Dec-05 5:04

Try implementing the validation controls in the user login control itself.

Messages From one Application to Another

A.Grover22-Dec-05 1:10

A.Grover

22-Dec-05 1:10

How can i send and Receive Messages from one application to another or passing a varaible from one application to another

Amit Grover
CDAC R&D

Re: Messages From one Application to Another

Curtis Schlak.22-Dec-05 2:34

Curtis Schlak.

22-Dec-05 2:34

Try reading Inter-Process Communication in .NET Using Named Pipes, Part 2.

"we must lose precision to make significant statements about complex systems."
-deKorvin on uncertainty

Re: Messages From one Application to Another

A.Grover25-Dec-05 20:04

A.Grover

25-Dec-05 20:04

i would like to use winAPI instead of Inter-Process Communication in .NET Using Named Pipes,. plz send me e.g if possible

Amit Grover
CDAC R&D

Re: Messages From one Application to Another

Curtis Schlak.26-Dec-05 4:11

Curtis Schlak.

26-Dec-05 4:11

A.,

I don't think anyone on this board will give a shrink-wrapped solution to your problem. Interprocess communication can get messy depending on how you implement it. If you don't already understand what you're doing, then you need to get some education regarding the matter.

However, you have a lucky star over your head because I found two articles right here on CodeProject that you can read. You will then know for what you ask and two methods for doing it in the Win32 API.

Interprocess communication tutorial, by Alex Fr
Interprocess Communication using Shared Memory, by Zoran M. Todorovic

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.