Image objects to PDF files - C# Discussion Boards

Re: pleas help me urgently in the problem of reports using in visual studio

Colin Angus Mackay1-Jun-09 20:54

Colin Angus Mackay

1-Jun-09 20:54

seeramzanse wrote:
now listen

Be polite. Demanding tones in the imperative are more likely to irritate those that can help you rather than get what you wan.

Man who stand on hill with mouth open wait long time for roast duck to drop in

How to implement IDocHostUIHandler Interface in c#?

svt gdwl1-Jun-09 19:53

svt gdwl

1-Jun-09 19:53

Hi, I had an application of BHO in c#.

http://msdn.microsoft.com/en-us/library/aa770043(VS.85).aspx
http://msdn.microsoft.com/en-us/library/aa768373(VS.85).aspx

I want to access the back and forward button present in IE? I mean I want to traverse a Specific URL instead of the Previous url which has been generated by clicking 'BACK'. So, How can I do this? How can I implement the Travel Log Interfaces and interfaces like IDocHostUIHandler Interface in c#? Can anyone suggest for doing this?

MDI Application.

vinay_K1-Jun-09 19:45

vinay_K

1-Jun-09 19:45

Hi,

I have an mdi applicaiton..
1) I opened two child windows inside mdi parent by creating new instance.

2) I have scrolled the 1st child window vertically and clicked on 2nd child window.

3) if i again click on 1st child window the verticle scrollbar is coming to start position.

Can anyone suggest me how to keep the scroll at the same position when the child window gets activated...

thanks in advance..

Error: Unable to cast object of type 'System.DateTime' to type 'System.String'.

KIDYA1-Jun-09 18:41

KIDYA

1-Jun-09 18:41

Hello experts,

I got above error,I am trying to do reading data from sql and write it into csv file format.However when it read data row by row from sql then gives above error.
My code is:
<pre> while (dr.Read())
{
strRow = "";
for (int i = 0; i < dr.FieldCount; i++)
{
strRow += (string)dr.GetString(i); // Gives error here

if (i < dr.FieldCount - 1)
{
strRow += this.separator;
}
}
sw.WriteLine(strRow);
}

Re: Error: Unable to cast object of type 'System.DateTime' to type 'System.String'.

Mbah Dhaim1-Jun-09 18:58

Mbah Dhaim

1-Jun-09 18:58

I also had experienced this, so i change the Get[Type]() methods such as GetString(index), GetInt16(index) etc with GetValue(i) or DataReader indexer it self, but it must be checked first if return value is DBNull.
In your case replace your code in line that gives error with

KIDYA wrote:
strRow += (string)dr.GetString(i); // Gives error here

if (!Convert.IsDBNull(dr[i]){
   strRow +=dr[i].ToString();
}

or 

if (!Convert.IsDBNull(dr.GetValue(i)){
   strRow +=dr.GetValue(i).ToString();
}

hope it helps

dhaim
ing ngarso sung tulodho, ing madyo mangun karso, tut wuri handayani. "Ki Hajar Dewantoro"
in the front line gave a lead, in the middle line build goodwill, in the behind give power support

Re: Error: Unable to cast object of type 'System.DateTime' to type 'System.String'.

KIDYA1-Jun-09 20:20

KIDYA

1-Jun-09 20:20

hi Mbah Dhaim
It works,Thanx.

Re: Error: Unable to cast object of type 'System.DateTime' to type 'System.String'.

Christian Graus1-Jun-09 19:34

Christian Graus

1-Jun-09 19:34

The error means what it says. Can you read ? You can use ToString() if you want to convert the type to a string.

Christian Graus

Driven to the arms of OSX by Vista.

Please read this[^] if you don't like the answer I gave to your question.

Image objects to PDF files

Member 46783511-Jun-09 17:09

Member 4678351

1-Jun-09 17:09

Hi,

I'm developing a C# application to process binary (b&w) images. I need to save them as PDF files.

I've found a few libraries (see example below) that would let me do so by saving the images as JPEG first and then converting them to PDF. Doing so however produces relatively large PDF files.

Example: http://www.codeproject.com/script/Forums/Edit.aspx?fid=1649&floc=/Forums/1649/Csharp.aspx

Any ideas on how I can directly convert System.Drawing.Image objects to B&W PDF files?

Thanks,

Sarab

Re: Image objects to PDF files

Christian Graus1-Jun-09 19:38

Christian Graus

1-Jun-09 19:38

Member 4678351 wrote:
Any ideas on how I can directly convert System.Drawing.Image objects to B&W PDF files?

With a library like the one you have. What do you think the image will be saved as, if not a JPEG ?

Christian Graus

Driven to the arms of OSX by Vista.

Please read this[^] if you don't like the answer I gave to your question.

Vista file virtualization: Deleting files when uninstalling program

choo_chu1-Jun-09 16:51

choo_chu

1-Jun-09 16:51

I'm writing an installer for a program that will be used on Vista. When I install the program for "all users", the data files for the program are stored in the virtual folder for each user, such as, "C:\Users\UserName\AppData\Local\VirtualStore\Program Files\MLW\MLW Program". When I uninstall my program, the data files in the virtual folders for each user are not automatically deleted. I need to add code into my program's Uninstall() method; however, I don't know how to do that for each user that isn't the current user.

Any help is appreciated.

Thank you,
choo_chu

Code for Restart Console Application

Serpendiem1-Jun-09 16:37

Serpendiem

1-Jun-09 16:37

What is the code for restarting a console application?

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Re: Code for Restart Console Application

Calla1-Jun-09 19:37

Calla

1-Jun-09 19:37

To restart a console application? What do you mean by "restart" it?
Please be more precise..

How to store a large number of XML to the MSSQL200 database in a field

cady_4001-Jun-09 15:15

cady_400

1-Jun-09 15:15

How to store a large number of XML to the MSSQL200 database in a field

hello everyone

Re: How to store a large number of XML to the MSSQL200 database in a field

Christian Graus1-Jun-09 19:38

Christian Graus

1-Jun-09 19:38

With SQL, I guess.

Christian Graus

Driven to the arms of OSX by Vista.

Please read this[^] if you don't like the answer I gave to your question.

is it bug of the microsoft?(about multilanguage) [modified]

yuwenxiang1-Jun-09 14:59

yuwenxiang

1-Jun-09 14:59

I am developing program of C#,the windows are inherit from another library,such like the propty of the EnableBackgroundImage of buttons,it works well,but now I want to developing the multilanguage of the window,when I change the language of the window,some auto sources will be add to the designer.cs files,suck like "button.EnableBackgroundImage = null; " Is it the bug of the microsoft?is it because the project can not inherit propty of the EnableBackgroundImage well,and consider the EnableBackgroundImage is set nothing? Frown | :(

when I change the language a part of designer.cs change to this ,its right

//
// ocButton1
//
this.ocButton1.FKeyAllocation = Solno.OceanLibrary.Gui.FKeyAllocation.F1Key;


//
// PaMef01000
//
resources.ApplyResources(this, "$this");
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.FunctionID = "006MEF010";
this.Name = "PaMef01000";
this.OcFormHelpProvider.SetShowHelp(this, ((bool)(resources.GetObject("$this.ShowHelp"))));
this.SingleDisplay = true;
this.UseSecurity = true;
this.Load += new System.EventHandler(this.PaMef01000_Load);
this.FormClosed += new System.Windows.Forms.FormClosedEventHandler(this.PaMef01000_FormClosed);
this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.PaMef01000_FormClosing);
this.mainZone.ResumeLayout(false);
this.formZone.ResumeLayout(false);
this.baseZone.ResumeLayout(false);
this.buttonZone.ResumeLayout(false);
this.buttonZoneShift.ResumeLayout(false);
this.buttonZoneNormal.ResumeLayout(false);
this.ocPanel1.ResumeLayout(false);
this.ocPanel1.PerformLayout();
((System.ComponentModel.ISupportInitialize)(this.OcDataGridViewCassette)).EndInit();
this.ResumeLayout(false);

but when I change the text of button ,and save the windows ,designer.cs became this

//
// ocButton1
//
this.ocButton1.AccessibleDescription = null;
this.ocButton1.AccessibleName = null;
resources.ApplyResources(this.ocButton1, "ocButton1");
this.ocButton1.BackgroundImage = null;
this.ocButton1.DisabledBackgroundImage = null;
this.ocButton1.EnabledBackgroundImage = null;
this.ocButton1.FKeyAllocation = Solno.OceanLibrary.Gui.FKeyAllocation.F1Key;
this.ocButton1.Font = null;
this.OcFormHelpProvider.SetHelpKeyword(this.ocButton1, null);
this.OcFormHelpProvider.SetHelpNavigator(this.ocButton1, ((System.Windows.Forms.HelpNavigator)(resources.GetObject("ocButton1.HelpNavigator"))));
this.OcFormHelpProvider.SetHelpString(this.ocButton1, null);
this.OcFormHelpProvider.SetShowHelp(this.ocButton1, ((bool)(resources.GetObject("ocButton1.ShowHelp"))));
this.OcFormToolTip.SetToolTip(this.ocButton1, resources.GetString("ocButton1.ToolTip"));




//
// PaMef01000
//
this.AccessibleDescription = null;
this.AccessibleName = null;
resources.ApplyResources(this, "$this");
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.BackgroundImage = null;
this.Font = null;
this.FunctionID = "006MEF010";
this.OcFormHelpProvider.SetHelpKeyword(this, null);
this.OcFormHelpProvider.SetHelpNavigator(this, ((System.Windows.Forms.HelpNavigator)(resources.GetObject("$this.HelpNavigator"))));
this.OcFormHelpProvider.SetHelpString(this, null);
this.Icon = null;
this.Name = "PaMef01000";
this.OcFormHelpProvider.SetShowHelp(this, ((bool)(resources.GetObject("$this.ShowHelp"))));
this.SingleDisplay = true;
this.OcFormToolTip.SetToolTip(this, resources.GetString("$this.ToolTip"));
this.UseSecurity = true;
this.Load += new System.EventHandler(this.PaMef01000_Load);
this.FormClosed += new System.Windows.Forms.FormClosedEventHandler(this.PaMef01000_FormClosed);
this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.PaMef01000_FormClosing);
this.mainZone.ResumeLayout(false);
this.formZone.ResumeLayout(false);
this.baseZone.ResumeLayout(false);
this.buttonZone.ResumeLayout(false);
this.buttonZoneShift.ResumeLayout(false);
this.buttonZoneNormal.ResumeLayout(false);
this.ocPanel1.ResumeLayout(false);
this.ocPanel1.PerformLayout();
((System.ComponentModel.ISupportInitialize)(this.OcDataGridViewCassette)).EndInit();
this.ResumeLayout(false);

modified on Monday, June 1, 2009 9:45 PM

C# TCP Close Socket Question

Serpendiem1-Jun-09 13:43

Serpendiem

1-Jun-09 13:43

How do you close a socket in C#? TCP.

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Re: C# TCP Close Socket Question

Luc Pattyn1-Jun-09 14:41

Luc Pattyn

1-Jun-09 14:41

Hi,

AFAIK most network classes have a Close() method: Socket.Close, TcpClient.Close, UdpClient.Close, ...

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

The quality and detail of your question reflects on the effectiveness of the help you are likely to get.
Show formatted code inside PRE tags, and give clear symptoms when describing a problem.

[Message Deleted]

Star091-Jun-09 13:08

Star09

1-Jun-09 13:08

[Message Deleted]

Re: Can't Add a Row ( Access DB)

Christian Graus1-Jun-09 13:10

Christian Graus

1-Jun-09 13:10

I find that writing SQL is the best way to control what happens to a database.

Christian Graus

Driven to the arms of OSX by Vista.

Please read this[^] if you don't like the answer I gave to your question.

Re: [Message Deleted]

Colin Angus Mackay1-Jun-09 13:21

Colin Angus Mackay

1-Jun-09 13:21

Don't delete your message - It is rude.

Man who stand on hill with mouth open wait long time for roast duck to drop in

C# TCP Cycle

Serpendiem1-Jun-09 12:42

Serpendiem

1-Jun-09 12:42

My current code works fine, but I've encountered a problem. When a client connects to the TCP server, and they type a message it works the first time, but if its entered again, it just gives you the else. So lets say I typed shutdown in the client console. It would return Command Recieved, Initiating Shutdown. But if I try it again, it just gives me the else message. Its like its not cycling through the if statement again. What kind of code should I use to solve this issue?

Here is the code:

/*

C# TCP
by Joshua Garrett

 */


using System;
using System.Net;
using System.Net.Sockets;
using System.Text;

public class Server
{
    public static void Main()
    {
        byte[] data = new byte[1024];
        IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 7557);
        UdpClient newsock = new UdpClient(ipep);

        Console.WriteLine("Waiting for a client...");

        IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);

        data = newsock.Receive(ref sender);

        Console.WriteLine("Connection received from {0}", sender.ToString());

        string welcome = "OpticVPS Remote Administration";  //where?
        data = Encoding.ASCII.GetBytes(welcome);
        newsock.Send(data, data.Length, sender);

        while (true)
        {
            data = newsock.Receive(ref sender);

                
            if (Encoding.ASCII.GetString(data, 0, data.Length) == "help")
            {
                string okay = "You can use the following commands";

                Console.WriteLine("Help List Accessed By: {0}", sender.ToString());
                
                data = Encoding.ASCII.GetBytes(okay);
                newsock.Send(data, data.Length, sender);
            }
            else if (Encoding.ASCII.GetString(data, 0, data.Length) == "shutdown")
            {
                string shutdown = "Command Received, Shutting Down Now";

                Console.WriteLine("Shutdown Issued - {0}", sender.ToString());

                data = Encoding.ASCII.GetBytes(shutdown);
                newsock.Send(data, data.Length, sender);


            }
            else
            {
                string err = "Command Not Found [End Of Line]";

                Console.WriteLine("Command Error - {0}", sender.ToString());

                data = Encoding.ASCII.GetBytes(err);
                newsock.Send(data, data.Length, sender);
            
            }
           // newsock.Send(data, data.Length, sender);
        }
    }
    
}

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Re: C# TCP Cycle

Jimmanuel1-Jun-09 14:42

Jimmanuel

1-Jun-09 14:42

Serpendiem wrote:
What kind of code should I use to solve this issue?

Well, if you want to use TCP connections, I'd start by using a TCP[^] client and a TCP[^] server. A UdpClient isn't going to help you very much.

In response to your other question about how to close a TCP connection, you should take a look at the Close()[^] method.

Badger | [badger,badger,badger,badger...]

pda(push down automata)

chavir1-Jun-09 12:00

chavir

1-Jun-09 12:00

hi please help me
how to write a program "visual pda(push down automata) creater" with C#

cxg

Re: pda(push down automata)

Christian Graus1-Jun-09 12:22

Christian Graus

1-Jun-09 12:22

The link in my sig has all the information you need.

Christian Graus

Driven to the arms of OSX by Vista.

Please read this[^] if you don't like the answer I gave to your question.

pda automata

chavir1-Jun-09 11:57

chavir

1-Jun-09 11:57

hi please help me
how to write a program "visual pda(push down automata) creater" with C#

cxg

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