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http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winprog/winprog/windows_api_start_page.asp[^]

30-Nov-03 14:13

We'll just go on MSDN : http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winprog/winprog/windows_api_start_page.asp

Clickety

J. Dunlap30-Nov-03 16:26

J. Dunlap

30-Nov-03 16:26

"Peace is not merely a distant goal that we seek, but a means by which we arrive at that goal." -- Martin Luther King Jr.

FLUID UI Toolkit | FloodFill in C# & GDI+

Re: Clickety

Tristan Rhodes1-Dec-03 3:33

Tristan Rhodes

1-Dec-03 3:33

Thanks guys, found all the stuff I was looking for and more Smile | :)

Cheers

Cata

source code

Amirjalaly30-Nov-03 5:00

Amirjalaly

30-Nov-03 5:00

hi can anyone send me the source code of flow diagram?
it is very important for me.
best regards.

Re: source code

Alex Korchemniy30-Nov-03 14:15

30-Nov-03 14:15

Your not too clear on this.

Do you need source code for a flow diagram control?

Query: The | Operator

30-Nov-03 4:53

I have some sample code Heath (Stewart) may recognise it, as it's from his Icon Extraction sample.

Anyway, I'm confused about the use of the | operator with enumerations.

<br />
	[DllImport("shell32.dll", CharSet=CharSet.Auto)]<br />
	private static extern IntPtr SHGetFileInfo(<br />
		string path,<br />
		int fileAttributes,<br />
		[MarshalAs(UnmanagedType.Struct), Out]out SHFileInfo info,<br />
		int fileInfoSize,<br />
		[MarshalAs(UnmanagedType.U4)]SHGFI flags);<br />

First is the use of the SHGFI Flags, which I take as wanting to use the Hex values as handles or refferences or pointers or something. I'm sure I'll figure it out.

The next part is:

<br />
		IntPtr retVal = SHGetFileInfo(filename, FILE_ATTRIBUTE_NORMAL,<br />
			out info, Marshal.SizeOf(typeof(SHFileInfo)),<br />
			SHGFI.AddOverlays | SHGFI.DisplayName | SHGFI.Icon | SHGFI.SmallIcon<br />
			| SHGFI.TypeName | SHGFI.UseFileAttributes);<br />

Now, how does the | operator in this work? Is it actualy an or statement? Or a collection of flags from the enumeration? If so, what effect does the | charachter have?

Thanks guys

Cata

leppie30-Nov-03 6:11

leppie

30-Nov-03 6:11

The_Catalyst wrote:
Now, how does the | operator in this work? Is it actualy an or statement? Or a collection of flags from the enumeration? If so, what effect does the | charachter have?

The latter, it behave like flags. A bit-wise OR iow.

leppie ::AllocCPArticle("Zee blog");
Seen on my Campus BBS: Linux is free...coz no-one wants to pay for it.

Tristan Rhodes30-Nov-03 7:06

Tristan Rhodes

30-Nov-03 7:06

How do flags work? What is the OR required for? What do flags represent? Hex numbers paired with ordered values from an enumeration?

Cheers

Cata

J. Dunlap30-Nov-03 10:32

J. Dunlap

30-Nov-03 10:32

The bitwise OR operator combines the bits of two values into one value, making each bit that is "1" in either value be "1" in the new value, and any bit that's "0" in both be "0" in the new value. So, you're using each bit to represent a "flag" instead of having lots of boolean (true/false) values, one for each flag.

So, if you had the flags 1, 2, & 4, and OR'ed them together, each bit would represent a flag, and it would look like this (where r = result):

       binary
value  value
--------------
1  =  00000001
2  =  00000010
4  =  00000100
--------------
r  =  00000111

"It is appallingly obvious that our technology exceeds our humanity." -- Albert Einstein

FLUID UI Toolkit | FloodFill in C# & GDI+

How to convert "string" type to "Shortcut" type ?

Tristan Rhodes30-Nov-03 7:06

Tristan Rhodes

30-Nov-03 7:06

How do flags work? What is the OR required for? What do flags represent? Hex numbers paired with ordered values from an enumeration?

Cheers

Cata

god4k30-Nov-03 3:35

god4k

30-Nov-03 3:35

Dear, Sir.

How to convert "string" type to "Shortcut" type ?
For example
convert the strings, "CtrlM", "CtrlN", "CtrlO", "CtrlP", etc to Shortcut type.

Thank you.

Re: How to convert "string" type to "Shortcut" type ?

Alex Korchemniy30-Nov-03 14:23

Re: How to convert "string" type to "Shortcut" type ?

30-Nov-03 14:23

You're lucky c# has an enum parse feature

you can use this:

System.Windows.Forms.Shortcut s = (System.Windows.Forms.Shortcut)Enum.Parse(typeof(System.Windows.Forms.Shortcut), "Alt1");

J. Dunlap30-Nov-03 16:42

J. Dunlap

30-Nov-03 16:42

The method that the post above mentions works for some but not all shortcuts (AFAIK). The preferred method is to use the KeyConverter class (in System.Windows.Forms) to do this. It does not take strings like "CtrlM", but it will take strings like "Ctrl+M" or "Ctrl+Shift+M".

"Don't judge each day by the harvest you reap, but by the seeds you plant." -- Robert Louis Stevenson

FLUID UI Toolkit | FloodFill in C# & GDI+

Rounding the Time

Anonymous30-Nov-03 0:29

Anonymous

30-Nov-03 0:29

What's the easiest way of rounding the time to the nearest five minutes in C#?

Rich.

Re: Rounding the Time

Alex Korchemniy30-Nov-03 14:17

select, insert, update, del with ADO.net with C#

30-Nov-03 14:17

There really isn't a builtin method for this. However - you can access the minutes property of the DateTime object and calculate the nearest multiple of 5.

Azel Low29-Nov-03 23:07

Azel Low

29-Nov-03 23:07

Hi, is there anyone who can point or provide me with some samples of how to Select, Insert Update and delete using OLEDB in C#

Preferably a simple basic example that doesn't use stored procedure.

thanks.

Re: select, insert, update, del with ADO.net with C#

Uwe Keim30-Nov-03 3:14

Uwe Keim

30-Nov-03 3:14

I use something similar to this for INSERT an new record:

OleDbConnection conn = new OleDbConnection( DB_STR );
OleDbDataAdapter da = new OleDbDataAdapter( "SELECT TOP 1 * FROM Guestbook", conn );
OleDbCommandBuilder cb = new OleDbCommandBuilder( da );
cb.QuotePrefix = "[";
cb.QuoteSuffix = "]";
  
DataSet ds = new DataSet();
da.Fill( ds );
  
DataTable table = ds.Tables[0];
DataRow row = table.NewRow();
  
row["Date"] = DateTime.Now;
row["Name"] = name;
row["EMail"] = email;
row["Text"] = text;
table.Rows.Add( row );
  
da.Update( ds );
  
conn.Close();

And for INSERT or UPDATE:

OleDbConnection conn = new OleDbConnection( DB_STR );
// do your query for a specific recordset.
// if it returns none, you must create a new, otherwise modify the existing.
OleDbDataAdapter da = new OleDbDataAdapter( "SELECT TOP 1 * FROM Guestbook WHERE ID="+ID, conn );
OleDbCommandBuilder cb = new OleDbCommandBuilder( da );
cb.QuotePrefix = "[";
cb.QuoteSuffix = "]";
    
DataSet ds = new DataSet();
da.Fill( ds );
    
DataTable table = ds.Tables[0];
    
// create new.
if ( table.Rows.Count==0 )
{
    DataRow row = table.NewRow();

    row["Date"] = DateTime.Now;
    row["Name"] = name;
    row["EMail"] = email;
    row["Text"] = text;
    
    table.Rows.Add( row );
}
// modify existing.
else
{
    DataRow row = table.Rows[0];
    
    row["Date"] = DateTime.Now;
    row["Name"] = name;
    row["EMail"] = email;
    row["Text"] = text;
}
    
da.Update( ds );
    
conn.Close();

For the SELECT and DELETE I just use single-statement SQL-queries, which I format with string.Format().

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Re: select, insert, update, del with ADO.net with C#

Azel Low1-Dec-03 0:51

Azel Low

1-Dec-03 0:51

thanks.

I got a question. what is the following code for?

<br />
cb.QuotePrefix = "[";<br />
cb.QuoteSuffix = "]";<br />

thanks =)

How to customize http connection timeout?

shooterlily29-Nov-03 19:51

29-Nov-03 19:51

Here is my code.

HttpClientChannel channel = new HttpClientChannel();
ChannelServices.RegisterChannel(channel);
try{
url = "http://"+servername+":7777";
RemotingConfiguration.RegisterActivatedClientType(typeof(MyService), url);
MyService myservice = new MyService();
}catch(Exception){...}

If I input an error servername,I want to know error in customized timeout such as 10 seconds or else. How? Thanks!

Heath Stewart1-Dec-03 2:07

Heath Stewart

1-Dec-03 2:07

If you looked at the SDK documentation for HttpClientChannel, the solution is obvious: channel.Properties.Add("timeout", timeout in milliseconds)

-----BEGIN GEEK CODE BLOCK-----
Version: 3.21
GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++
-----END GEEK CODE BLOCK-----

shooterlily4-Dec-03 15:38

4-Dec-03 15:38

Are you sure?
When I use the following code,

channel = new HttpClientChannel();
channel.Properties.Add("timeout",10000);

JIT throws System.NotSupportedException.
What is your suggestion?

shooterlily4-Dec-03 18:11

4-Dec-03 18:11

I knew something about it. The timout is a new property that is introduced in .NET framework 1.1. I have changed my framework version to 1.1.
But when I use it like the following,

IDictionary props = new Hashtable();
props["timeout"] = 30000;
HttpClientChannel channel = new HttpClientChannel(props,
new SoadClientFormatterSinkProvider());

it seems the timeout(30 seconds) does not take effect.
Why? Could you help me ?

Heath Stewart4-Dec-03 18:55

Heath Stewart

4-Dec-03 18:55

No, the "timeout" property has existed even before the release of 1.0 and the documentation backs this up (plus the fact I have MS Press's "Microsoft .NET Remoting" that was written about the time 1.0 was released and mentioned it.

As far as the timeout not working, are you sure it's the HttpClientChannel that's timing out? I just ask because we had a similar problem at work yesterday I worked on for a while where our remoting objects talk to SQL Server and communicate over HTTP since they're hosted by IIS. In that case, there were many timeouts: SQL Server's query timeout, the SqlCommand.CommandTimeout, the HttpClientChannel timeout (which worked, and we're using 1.0), and - in some cases - the ASP.NET worker process's timeout.

You can also configure the timeout as an arbitrary attribute in the <channel> section of your .config file (if you configure your remoting object via a configuration file). This makes it easy to change. See the docs for the element for more details.

shooterlily7-Dec-03 18:56