Microsoft Loopback Adapter - C# Discussion Boards

sagmam27-Dec-04 8:06

27-Dec-04 8:06

Hi all, I found this article in CodeProject:
http://www.codeproject.com/csharp/FTwin32Timers.asp[^]

I was wondering if anyone else could back this up (i.e. encoutered the problem), and the most important thing:
In the article, it says that the "other" timers DIDN'T work. Does anyone understand which timers the author is talking about? Maybe System.Threading.Timer objects? Or maybe something else?

Thanks.

/=/=/=/= Sagmam =\=\=\=\

Re: About timers...

Dennis C. Dietrich27-Dec-04 8:49

Dennis C. Dietrich

27-Dec-04 8:49

sagmam wrote:
I was wondering if anyone else could back this up (i.e. encoutered the problem)

I can't confirm the problem. However, the article refers to the .NET Framework 1.0 and there has been a Service Pack release after the article was published (so, maybe there has been a bug in one/all of the timer classes, however, there are no timer bugs mentioned in the lists of bugs).

sagmam wrote:
Does anyone understand which timers the author is talking about?

I don't know which one the author meant but there are three timer classes in the .NET Framework 1.1 (see also Comparing the Timer Classes in the .NET Framework Class Library[^]):
System.Threading.Timer[^]
System.Timers.Timer[^]
System.Windows.Forms.Timer[^]

Best regards
Dennis

Re: About timers...

sagmam27-Dec-04 21:02

sagmam

27-Dec-04 21:02

Thanks Dennis.
I know about these three, and I read the article, however, it doesn't talk about any issues with them - only about how to use them, etc. Apparently, the article I was talking about claims that there are issues with one or more of these classes, and I don't know which or why....

Take care,

/=/=/=/= Sagmam =\=\=\=\

combo box

webhay27-Dec-04 7:53

webhay

27-Dec-04 7:53

Hello all,

I bind a combobox with columne in database.but i need to display first selection blank.

Thanks
hay

Re: combo box

AVaka27-Dec-04 17:37

AVaka

27-Dec-04 17:37

Steps
1) Add a blank space to combobox items
Ex: cboProducts.Items.Add("");
2) Use a datareader to fetch the required column data from the database.
3) Then loop through the datareader data using Read() method, while doing this add required column values to the items of Combobox.

I hope This will do.

If you directly bind the combobox using Datasource and Displaymember properties You may not get blank line.

- Send me if you have any suggetions or other work arounds

Store Multiple Objects - XML Serialization

Jedimark27-Dec-04 6:21

Jedimark

27-Dec-04 6:21

With reference to this article:
http://www.codeproject.com/csharp/xml_serializationasp.asp?df=100&forumid=16126&select=1003712[^]

Is it possible to say store multiple customer objects in the same XML file using XML Serialization? If it's not can you recommend the best method to do this?

Kind regards,
- Mark

Re: Store Multiple Objects - XML Serialization

Robert Rohde27-Dec-04 8:08

Robert Rohde

27-Dec-04 8:08

Yes you can. Ive only made a quick view at the article but i think I should be easily done with it. The method SaveToDocumentFormat receives an object to be persisted. You can just pass an array of objects (e.g. an array of customers) into the method and it should serialize them all into one file. Even an ArrayList should work.

Microsoft Loopback Adapter

Member 157147527-Dec-04 3:08

Member 1571475

27-Dec-04 3:08

How can I dynamically install Microsoft loopback adapter programatically in C#, if so, can i have multi-instances of it?

and what would be the way to configure its IP address, media type, etc. through run-time.

Updation issue

sreejith ss nair27-Dec-04 1:00

sreejith ss nair

27-Dec-04 1:00

I have a dataset which contain only one DataTable. In my Business logic, I am selecting one data row from the data table which is there in my dataset.
When I try to modify the data in data row it is modifying successfully. like wise I am getting all required result for consecutive updation,add,deletion etc.
I can able see the changes that I made in dataset. And it reflects in user interface. The problem is , when I try to update data back to database it execute the Update method successfully. If I try to see the data in database it doesn't shows any updated data. I am using Asacommandbuilder to get all relavent command while passing a Sellect command.
I am using Sybase as database(Ianywhere Client).
No error no updation. Really I am getting mad. Any Idea ? D'Oh! | :doh:

Sreejith Nair
[ My Articles ]

Drawing images on a panel

Nitin Jain26-Dec-04 23:47

Nitin Jain

26-Dec-04 23:47

I am displaying images as thumbnails from a folder on a panel. On click of any of the images i need the name of the image file being clicked. Here is how i am displaying the images:

string [] fileEntries = Directory.GetFiles(utils.imgfolderpath);

int j=fileEntries.Length;
for(int i=0; i

Re: Drawing images on a panel

Robert Rohde27-Dec-04 4:40

Robert Rohde

27-Dec-04 4:40

Hi,

when you draw your images remember their locations. In this case I would hold a Rectangle array to store this information. E.g:
(some field)

<br />
Rectangle[] rects = new Rectangle[NrOfImages];<br />

(in the loop)

<br />
rects[i] = new Rectangle(x, y, width, height);<br />

To determine the clicked image:

<br />
int resultIndex = -1;<br />
for (int i = 0; i < rects.Length; i++) {<br />
  if (Rects.Contains(new Point(MouseX, MouseY)) {<br />
    resultIndex = i;<br />
    break;<br />
  }<br />
}<br />
if (i >= 0) <br />
  //You have found the index, now get the appropraite imagepath<br />

Re: Drawing images on a panel

ninja260528-Dec-04 1:43

ninja2605

28-Dec-04 1:43

Thanks a lot for the help Robert.

Can I remote an abstract class with Remoting

Mohammed Aijaz Mohiuddin26-Dec-04 23:16

Mohammed Aijaz Mohiuddin

26-Dec-04 23:16

Can I remote an abstract class with remoting feature of C#.

Re: Can I remote an abstract class with Remoting

leppie27-Dec-04 0:47

leppie

27-Dec-04 0:47

Not if you want to instantiate it, never then, not even locally :p To use that class you will need somekind of implemetation somewhere.

^{top secret
Download xacc-ide 0.0.3 now!
See some screenshots}

Re: Can I remote an abstract class with Remoting

Kodanda Pani27-Dec-04 20:10

Kodanda Pani

27-Dec-04 20:10

Nope. you cant.

help!! dlsym equivalent in C#

Jitesh Patil26-Dec-04 21:41

Jitesh Patil

26-Dec-04 21:41

Hey Everyone,
I am new to C#. I am writing a small application. This application will read a method name from a flat file. Then call the method in another class library with the same name as the one read.

Example, I have a method "add" in the flat file. and the other library is "Math", then my aplpication should call "Math.add", the other library may change and so the flat file.

This is something similar to dlsym that I used in my c/c++ programs on unix. Can something similar be done here. Unsure | :~

Thanks in advance,
Regards,
JItesh

Re: help!! dlsym equivalent in C#

Daniel Turini27-Dec-04 1:52

Daniel Turini

27-Dec-04 1:52

The name for what you need is "Reflection". See the sample on MSDN about MethodInfo class, e.g.:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemreflectionmethodbaseclassinvoketopic1.asp[^]

Yes, even I am blogging now!

Re: help!! dlsym equivalent in C#

Jitesh Patil27-Dec-04 16:38

Jitesh Patil

27-Dec-04 16:38

Hey thanks Daniel.

Regards,
Jitesh

DaataGrid Columns

T i T i26-Dec-04 21:36

T i T i

26-Dec-04 21:36

Hi , Please I need help as soon as possible

how can I add CheckBox Column to a dataGrid without mapping it to the dataset
I want to retrieve a column from the dataset and beside him a Checkbox Column
that he checks then I want to retrive the checked records according to the first column...
Thanks So Much
Really I need it quickly..

Re: DataGrid Columns

aplope27-Dec-04 2:38

aplope

27-Dec-04 2:38

This has been done on 4guysfromrolla.com. Here's the link:

http://aspnet.4guysfromrolla.com/articles/122602-1.aspx

Pegmeister

Re: DataGrid Columns

T i T i27-Dec-04 3:08

T i T i

27-Dec-04 3:08

Thanks A lot
but I'm so sorry , I didn't mention that I need a dataGrid of Windows Forms ,not web forms...any how thanx for help if u still know the answer , please reply me.
Thank you again.

Re: DaataGrid Columns

sreejith ss nair27-Dec-04 19:46

sreejith ss nair

27-Dec-04 19:46

Please see this article.
Datagrid Column Style Blush | :O

Sreejith Nair
[ My Articles ]

WEB SERVICE CALL

ABBASI_RA26-Dec-04 19:57

ABBASI_RA

26-Dec-04 19:57

I create a web service with an DelItem() method to delete a record of a table in SQL2000 database via a store procedure.
It works correctly itself but when i call it in my web application an error (UNAUTHORIZED) occurs.
Whats the problem?
---------------------------------------------
Exception Details: System.Net.WebException: The request failed with HTTP status 401: Unauthorized.

Source Error:

Line 59: [System.Web.Services.Protocols.SoapDocumentMethodAttribute("http://localhost/webservice/wsns/delitem",RequestNamespace="http://localhost/webservice/wsns",ResponseNamespace="http://localhost/webservice/wsns",Use=System.Web.Services.Description.SoapBindingUse.Literal,ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)]
Line 60: public string delitem(short code) {
Line 61: object[] results = this.Invoke("delitem", new object[] {
Line 62: code});
Line 63: return ((string)(results[0]));

Source File: D:\Inetpub\wwwroot\WebApplication\Web References\localhost\Reference.cs
Line: 61
------------------------------------
thanks alot

Re: WEB SERVICE CALL

Daniel Turini27-Dec-04 1:48

Daniel Turini

27-Dec-04 1:48

Your webservice needs authentication and your client application failed to provide credentials.
On the web services client, set the Credentials property to some valid credentials, e.g., CredentialCache.DefaultCredentials.

Yes, even I am blogging now!

Re: WEB SERVICE CALL

Richard Schneider26-Jan-05 1:52

Richard Schneider

26-Jan-05 1:52

Or change the web service to allow anonymous acces. This can be done from
Administrative Tools | Internet Information Serives. Then right clicking and select Properties on web site. Click the "Directory Security" tab and then the top "Edit" button. From the here select the "Anonymous access" check box.

Real simple, eh?

Cheers,
Richard Schneider

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