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Hey guys,
I'm monitoring the disc drive of my computer, now, when a CD was inserted, i want to check wether the disc is an audio disc or not. Is there a simple way to accomplisch that?
Thnx...
I love it when a plan comes together!
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Hi all,
I finally got it right to populate a listview with all the availible printers. I want to user to be able to say:
When there is a report to be printed use this printer,
When it is an invoice/slip use this printer.
So now i can display all the printers and have the user select it according to their needs. But i only have the names of the printers thanks to this code:
public void Main()
{
ManagementScope scope = new
ManagementScope(@"\root\cimv2");
scope.Connect();
ManagementObjectSearcher searcher = new
ManagementObjectSearcher("SELECT * FROM Win32_Printer");
lvPrinters.Items.Clear();
foreach (ManagementObject printer in searcher.Get())
{
// MessageBox.Show("Printer", Convert.ToString(printer["Name"]));
// Console.WriteLine(printer["Name"]);
ListViewItem _printeritem;
_printeritem = lvPrinters.Items.Add(Convert.ToString(printer["Name"]));
}
}
I want to know if having the name is enough or would i need the path of the printer aswell?
I want to be able to send a file, like pdf and html, directly to the printer that the user selected.
"Many of life's failures are people who did not realize how close they were to success when they gave up." Thomas A. Edison
-- modified at 5:47 Thursday 10th August, 2006
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Okay, i figured out how to get the path of the printer and added that into the listview as a SubItem.
as the user selects the printer, i store the path in the DB.
1. Is it possible to send a file(pdf) directly to the printer using the Report Printer(that the user selected)? <if it is a report that needs to be printed>
2. Is it possible to send a file(html) directly to the printer using the Slip Printer(that the user selected)? <if it is a slip that needs to be printed>
"Many of life's failures are people who did not realize how close they were to success when they gave up." Thomas A. Edison
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Hi,
How to get treenode in treeview for given search string.
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You must search it manually (recursive).
Node -> ChildNode -> ChildNode -> ...
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Hi.
How can I write a modem command on it?
For example I receive a RING command, now I want write a "A" command for answering.
serialPort1.WriteLine("A") do't do this work.
why?
Best wishes
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Keep your question in one thread...
It works.. just use your code and use com port toolkit
to capture your data.
Try Write not WriteLine.
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Hi,
I am doing windows Mobile Instant Messaging Application in VS2005 using C#, How to Append a text as I dont have RichTextBox?
Anybody help me,
sarala
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There's a regular textbox...
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Hello
I got exception System.nullReferenceException in NUnit, when i use database initialization code.
I am using ASP.Net 2.0 with C#.
There is no error in Code. The same code in VS 2003 has been successfully test by NUNIT.
Plz help me.
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I was writing my first C# project and I have completed it. Thanks to you and your answers.
I love this site.
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Hello. I have 2 table. I wrote below codes but after delete command parent row have been deleted but chid rows haven't been deleted from "B" table. Is there any wrong thing for relation or delete automation?
Thanks a lot.
fkc = new ForeignKeyConstraint("FKC", ds.Tables["A"].Columns["A2"], ds.Tables["B"].Columns["B2"]);
ds.Tables["B"].Constraints.Add(fkc);
fkc.AcceptRejectRule = AcceptRejectRule.None;
fkc.DeleteRule = Rule.Cascade;
fkc.UpdateRule = Rule.Cascade;
ds.EnforceConstraints = true;
ds.Relations.Add("REL", ds.Tables["A"].Columns["A2"], ds.Tables["B"].Columns["B2"]);
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I am developing c# application, using SQLite c# wrapper.
Please read the query:
Insert into Employee Values('John',35)
Using the above Query I am able to insert once only.
But I wanted to insert many values supplied thru runtime in a method .
Ex:
Public void InsertData(string name, int age)
{
?
}
How is it possible?
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I hope below code enough.
Public void InsertData(string name, int age)
{
string str = str.Format("Insert into Employee Values ('{0}', '{1}')", name, age);
...
...
...
}
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Hi all:
I'm on effort to convert a bitmap color space from RGB to CIE L*a*b using GDI+ paradigm, could you help me in doing so. Thanks in advance.
Best regards.
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We performed some tests and:
loading a combo with a pre-sorted ascii-file (read in, split, and add item one by one)
is about 3 to 5 times faster then
selecting from a (Access) database and setting the DataSource, DisplayMember and ValueMember properties.
Can anybody explain why?
tnx
I've found a living worth working for, but I haven't found work worth living for.
<marquee> ![Beer | [beer]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/beer.gif) ![Jig | [Dance]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/jig.gif)
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Reading a text file has little overhead. The libraries for the operating system file functions are already loaded in memory, and are highly optimized for a simple task. When you read from a database, especially MSAccess, other files are loaded to communicate with the different layers between your application and the .mdb (i.e. OLEDB or ODBC drivers).
--EricDV Sig---------
Some problems are so complex that you have to be highly intelligent and well informed just to be undecided about them.
- Laurence J. Peters
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mmm, I thought in that direction, but actually when I debug the application, calling the DataSet isn't what takes much time, its setting the DataSource that takes much time. That's also the thing that surprises me, because you actually only set a reference no?
(sorry if that wasn't clear before)
tnx for the answer !
I've found a living worth working for, but I haven't found work worth living for.
<marquee>
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V. wrote: its setting the DataSource that takes much time
My guess is that when you set the DataSource is when your application calls the OLEDB or ODBC functions to actually retrieve the data. Having to communicate and translate between the different layers while retrieving data is the bottleneck. You go from .Net assemblies to: OLEDB libraries: to the Jet provider: to I don't remember what else in between.
--EricDV Sig---------
Some problems are so complex that you have to be highly intelligent and well informed just to be undecided about them.
- Laurence J. Peters
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EricDV wrote: I don't remember what else in between.
I think Mdac is in there somewhere... 
But I'm confused, I thougth the data-adapter and filling the dataset would go through that bunch of stuff. setting the datasource should only be copying a reference of the defaultview of the dataset?
Well, doesn't matter anyway, tnx for the repsonse !
I've found a living worth working for, but I haven't found work worth living for.
<marquee>
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Automagic comes with a performance price.
A man said to the universe:
"Sir I exist!"
"However," replied the Universe, "The fact has not created in me A sense of obligation."
-- Stephen Crane
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Hi
Is there any JPOS .net port that will help in ISO 8085 parsing and Formating
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Hi.
I want to use serial port to open the port that is represent of modem port.Because I open and dial number with APIs,serial port can not open modem port again.
Please tell me how I can open modem in way that I can read recieved data from it ,with serialport object.
Other ways will be helpful if you have trying before.
Best wishes
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See this sample from MSDN:
http://msdn2.microsoft.com/en-us/library/30swa673.aspx
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