C# Discussion Boards - CodeProject

Mairaaj Khan14-Jul-06 0:53

14-Jul-06 0:53

I'm using .Net 2.0.
Many thanks for the article.

Regards

_____________________________
Success is not something to wait for, its something to work for.

.NET TrackBar!

qyte13-Jul-06 23:44

qyte

13-Jul-06 23:44

Is there a way to keep the trackbar that .net provides and somehow keep the tickstyle in both since i love the way the tracker looks that way but still remove the ticks? I mean that i would like a TicksVisible property like! I think that something like this exists in delphi if i am not mistaken.

Re: .NET TrackBar!

Robert Rohde14-Jul-06 0:34

Robert Rohde

14-Jul-06 0:34

Hi,

you can set the TickStyle property to None.

Removing custom framework cabs

Gavin Roberts13-Jul-06 23:43

Gavin Roberts

13-Jul-06 23:43

Hey all,

After installing the latest version of the Symbol SDK it seems to have setup a requirement to install the framework on each deploy so debugging is becoming a pain especially when I have to cancel the installation on the handheld each debug.

If you hadn't already guessed, i'm using VS 2003 and I cannot find anywhere that states where these files are, although I know "where" they are, and I have deleted them. But now I receive an error on each deploy stating it cannot find these files.

Sooooo, does anyone know where the hell these files are referenced?

TIA

Gav

sql command for INSERT ...

mostafa_h13-Jul-06 23:38

mostafa_h

13-Jul-06 23:38

hi all,
there is 2 table (maintable[numdoc_id,...]) and(subtable[id,numdoc_id,...])and there is a one to many relation between 2 table .
in the MainForm :

...<br />
private int get_num_ID;<br />
...<br />
private int NUM_MY_ID(out int MY_ID)<br />
   {<br />
    ...<br />
    strFindID = "SELECT MAX(numdoc_id) as numdoc_id FROM MainTable";<br />
    ...<br />
    MY_ID = Int32.Parse(ds.Tables[0].Rows[0][0].ToString());<br />
    MY_ID++;<br />
    return MY_ID;<br />
    }

and for Insert Function in MainForm for subtable :

private void ADD_INTO_SubTable()<br />
   {<br />
    ...<br />
    try{<br />
    strSQL_P = "insert into subtable(numdoc_id,...)";<br />
    strSQL_P +="value('"+txtnumdoc_id.Text+"',...)";<br />
    ...<br />
    }...<br />
   }

and for Update Function in MainForm for subtable :

private void Update_INTO_SubTable()<br />
   {<br />
    ...<br />
    NUM_MY_ID(out get_num_ID);<br />
    try{<br />
    strSQL_P = "update payment set numdoc_id='"+get_num_ID+"'";<br />
    strSQL_P += ... where numdoc_id=" + get_num_ID;<br />
    ...<br />
    }...<br />
   }

txtnumdoc_id control is in MainForm(for maintable), but sometimes when I click the save button in main form ,the first numdoc_id row in maintable(e.g. '1') is added to the last row for subtable in numdoc_id field . I don't know where is my wrong .
Regards ,

s_mostafa_h

Re: sql command for INSERT ...

Guffa14-Jul-06 1:53

Guffa

14-Jul-06 1:53

I don't even know what is wrong. What are you trying to do?

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Re: sql command for INSERT ...

mostafa_h15-Jul-06 8:05

mostafa_h

15-Jul-06 8:05

hi there !
when I Insert a record in the MainTable , at the same time a record must be added to the subtable with the same Id(numdoc_id) , (there is a relation one to many between them )but sometimes , it doesn't happen . and the only the first id of the maintable is added to the last record of the subtable .
Is it clear or not ?
Regards ,

s_mostafa_h

Static and private mthods

Brendan Vogt13-Jul-06 23:26

Brendan Vogt

13-Jul-06 23:26

Hi,

I have the following class definiton with methods:

public class CategoryGroupDA
{
// All other code has been ommitted

public static int InsertCategoryGroup(CategoryGroup objCategoryGroup)
{
// All code necessary for database is ommitted

try
{
// All code necessary for database is ommitted
}
catch (SQLException ex)
{
// Here I want to have a method that handles this exception
// Something like:
HandleSQLError(ex, strSProc);
}
}

private static void HandleSQLError(SqlException ex, string strSProc)
{
string strException = "Error executing stored procedure " + strSProc + ": \r\n Error is " + ex.Message;
throw new Exception(strException, ex);
}
}

Is this the correct way to do it? I only want this method accessable to this class, that was why I made it private, but because it's private, then it can't be statis? It complains. When I make it public, then I can't use something like this.HandleSQLError(ex, strSProc);

Please can someone explain my confusion.

Regards,
ma se

Re: Static and private mthods

Robert Rohde13-Jul-06 23:34

Robert Rohde

13-Jul-06 23:34

Surely a method can be private static.
The only thing I noticed in this code is that you wrote SqlException in two different ways (Sql <-> SQL) and that you didn't declare the strSProc parameter and don't have a return statement in InsertCategroyGroup.

Re: Static and private mthods

Rob Philpott13-Jul-06 23:46

Rob Philpott

13-Jul-06 23:46

Something can't be right here. There's nothing wrong with private static....

Regards,
Rob Philpott.

Re: Static and private mthods

AesopTurtle14-Jul-06 2:05

AesopTurtle

14-Jul-06 2:05

I'm not sure whether I understand correctly. Anyway, I believe that Static method, just like static member, can only be accessed via a class. Here, you can access the static class using "CategoryGroupDA.HandleSQLError(ex, strSProc)". And if you make a method dynamic (no "static" keyword), you need to create an instance of the class first and call the method via the instance.

KiT

Serialization [modified]

sjembek13-Jul-06 23:19

sjembek

13-Jul-06 23:19

I'm trying to serialize an instance of a class with members of type bool, string, double[], double, int and an enumeration declared serializable. The class is marked [Serializable()] and doesn't have any child objects aside from the primitives mentioned. Also, it doesn't extend any other class: It's declared:

[Serializable()]
	public sealed class EQband

While serializing the object I get an error:

System.Runtime.Serialization.SerializationException: Type 'CtlEQ.CtlEQ' in Assembly 'bla, Version=2.0.2386.18258, Culture=neutral, PublicKeyToken=null' is not marked as serializable.

I can't figure out why an attempt is made to serialize some instance of the CtlEQ class.

The class I'm serializing is declared within the same namespace and is used by the CtlEQ.CtlEQ class (CtlEQ holds a refference to EQBand), but is no member of it.

Does anyone know why this attempt is made and how I can prevent this from happening?

Re: Serialization

Robert Rohde13-Jul-06 23:30

Robert Rohde

13-Jul-06 23:30

Just a wild guess: Do you have an event in EQband which CtlEQ listens to?

Re: Serialization

sjembek13-Jul-06 23:30

sjembek

13-Jul-06 23:30

Errr. Yes... Does this matter?

Re: Serialization

Robert Rohde13-Jul-06 23:39

Robert Rohde

13-Jul-06 23:39

Well if you bind an event of class A from class B then internally you are setting a reference from A to B.
Add the following to not serialize your event:

[field:NonSerializedAttribute()]
public event EventHandler FooEvent;

Re: Serialization [modified]

sjembek13-Jul-06 23:44

sjembek

13-Jul-06 23:44

Allright, I had already set a method on [OnSerializing()] to set the event to null, following your last post. That worked, but I can see this is more graceful. Thanks for the help!

Notifying File Size Exceeds

engsrini13-Jul-06 21:34

engsrini

13-Jul-06 21:34

How to get notification if one particular file size Exceeds 10 MB. i tried FileSystemWatcher class but it giving Changed event which occur for every change. i want an event to be raise only if file size exceeds some mentioned amount. any help on this.
Thanks
srini

Re: Notifying File Size Exceeds

stancrm13-Jul-06 21:58

stancrm

13-Jul-06 21:58

You can use FileInfo to get the length of the file. If FileInfo.Length bigger then 10MB then you must do something. Otherwise ignore it.

Re: Notifying File Size Exceeds

J4amieC13-Jul-06 22:09

J4amieC

13-Jul-06 22:09

engsrini wrote:
want an event to be raise only if file size exceeds some mentioned amount.

Then you need to create your own component to do this. A good starting place is to wrap a FileSystemWatcher, listen to its events, and when a particular one occurs (in your case a file being created/modified and its size being greater than 10Mb) fire your own event.

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How to get answers to your questions[^]

GDI+ Adjusting Font spacing for

Jon Hulatt13-Jul-06 21:33

Jon Hulatt

13-Jul-06 21:33

Hi,

I'm trying to overlay some text onto a picture. Because the picture is a real scene, I don't know it's precise colour balance so i cannot pick a colour for the text which can always be seen.

so, i'd like to write text in black with a white border. that is, draw the text in white, then slightly smaller in black, on top of it.

But i cannot find a way of adjusting the font spacing in GDI+. I'm sure it's there, i just don't know where.

Without that, my two draws of text don't align properly.

Anyone know how to do this? or has done it before? or know a better way?

Thanks

Jon

using System.Beer;

Re: GDI+ Adjusting Font spacing for

stancrm13-Jul-06 22:05

stancrm

13-Jul-06 22:05

Probably this site can help you:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/_gdiplus_obtaining_font_metrics_usecsharp.asp

Re: GDI+ Adjusting Font spacing for

Robert Rohde13-Jul-06 23:17

Robert Rohde

13-Jul-06 23:17

Hi,

I'm just adding halo effects to one of my articles. This is the way to go:

protected override void OnPaint(PaintEventArgs e)
{
   base.OnPaint (e);

   e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;

   GraphicsPath path = new GraphicsPath();
   path.AddString("Sample text", base.Font.FontFamily, (int)base.Font.Style, 
      base.Font.Size * 3, new PointF(10, 10), new StringFormat());

   using (Pen pen = new Pen(Color.White, 3))
   {
      e.Graphics.DrawPath(pen, path);
   }

   using (SolidBrush brush = new SolidBrush(Color.Red))
   {
      e.Graphics.FillPath(brush, path);
   }
}

To print an html page without loading it and without a print dialog, in asp.net

sai_akkina13-Jul-06 21:29

sai_akkina

13-Jul-06 21:29

Hi,
I am facing a problem in my web application while i am trying to print an html page, whose url is specified in a textbox, using axWebBrowser component. I am getting an error "Exception of type InvalidActiveXStateException was thrown", at axW.Navigate statement. Please help me to rectify this problem.

private void Button1_Click(object sender, System.EventArgs e)<br />
{<br />
	try<br />
	{<br />
		object empty= null;<br />
		System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(WebForm1));<br />
		AxWebBrowser axW=new AxWebBrowser();<br />
		axW.Enabled=true;<br />
		axW.Visible=false;<br />
		axW.OcxState = (System.Windows.Forms.AxHost.State)(resources.GetObject("axW.OcxState"));<br />
		//Response.Write(axW.OcxState.ToString());<br />
		axW.Navigate(TextBox1.Text,ref empty,ref empty,ref empty,ref empty);<br />
		axW.ExecWB(SHDocVw.OLECMDID.OLECMDID_PRINT,SHDocVw.OLECMDEXECOPT.OLECMDEXECOPT_DONTPROMPTUSER ,ref empty,ref empty);<br />
	}<br />
	catch(Exception Ex)<br />
	{<br />
		Response.Write(Ex.Message.ToString());<br />
	}	<br />
}

This application is a web application and I want the print at the server end since the server is the user in our case.

If it is not possible to print with this control in a web application, Is there any other way to print an html page without loading it and not to show any print dialog at the user end.

Please help me with this case.

Thanks in advance,
Sai.

Re: To print an html page without loading it and without a print dialog, in asp.net

Guffa13-Jul-06 23:03

Guffa

13-Jul-06 23:03

Please don't cross post.

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Re: To print an html page without loading it and without a print dialog, in asp.net

vjain2314-Jul-06 1:16

vjain23

14-Jul-06 1:16

onload in page write

It may help

vijay jain

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