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Use the formatting in the ToString method:
string shortPi = Math.PI.ToString("0.0000");
---
b { font-weight: normal; }
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// Create a NumberFormatInfo object and set several of its
// properties that apply to numbers.
NumberFormatInfo provider = new NumberFormatInfo( );
string formatter = "{0,22} {1}";
// These properties will affect the conversion.
provider.NegativeSign = "minus ";
provider.NumberDecimalSeparator = " point ";
// These properties will not be applied.
provider.NumberDecimalDigits = 4;
provider.NumberGroupSeparator = ".";
provider.NumberGroupSizes = new int[ ] { 3 };
Convert.ToString( ObjDouble, provider ) );
Live Life King Size
Alomgir Miah
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Hi
I have the following problem: I generate an XML file that has a CDATA section that contains character references (characters created by the XmlTextWriter in order to conform to well formatted XML and are in the form: , �). When I read the xml with an XmlTextReader I get the escaped strings instead of the characters. (I get "�" instead of '\0' for example)
using reader.ReadChars(...) has the same effect.
Any ideas?
TX
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Hey all,
I'm new to web app dev so I'll ask a simple question..
I created a simple chat application with client & server sockets.
after initialation & establishing the connection, I send text message to the server.
when I send the first message, the server gets it and displays it,
now, I realized that after the client sends the first message to the server, I need to reconnect to it again in order to send another message(s)..
The question is Do I need to reconnect to the server everytime, even though I have the server & client socket objects initialized...
my client code is like this:
private void btnSend_Click(object sender, System.EventArgs e)
{
btnConnect_Click(sender, e);//without this proc. I can send only 1 msg
try{
string msg = TxtSnd.Text+"<eof>";
byte[] byteData = Encoding.ASCII.GetBytes(msg);
lblstts.Text = "Sendeing...";//status label
clientMe.Send(byteData);
TxtSnd.Text = "";//delete text from TextBox
}catch(Exception Ex)
{
MessageBox.Show(Ex.Message);
}
}
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Hi,
It is possible to add a key to the c# dll so that
when other application call it, the application need
the key to use the dll ? And how to do that ?
Thanks
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NewtonInTown wrote:
It is possible to add a key to the c# dll so that
when other application call it, the application need
the key to use the dll ?
The short answer is no.
The long answer is maybe. This is possible only if all the methods you write in this .DLL are written to accept a key and validate it. This is something I don't think you want to do in every property and method you expose.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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So long as both assemblies have a strong name, you can add a StrongNameIdentityPermissionAttribute[^] to the class library at the assembly level. As a result, only applications signed with your private key will be able to access the library.
"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer
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Hmmm... Didn't know about that one.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Hello,
I have two decimal numbers, and I want to use mod function to get
an integer number. But it seems it's only available for SQL.
Is there a nice way of deviding two decimals and rounding off the result to a nearest integer?
Thank you
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int x = Convert.ToInt32(10.0/2.4);
Live Life King Size
Alomgir Miah
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Thank you,
I am so stupid I am already using Convert method.
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Hi,
I am trying to use a C# Windows Forms application as a DDE Client.
At present I'm using the follwing code to initiate a session with the DDE Server...
ushort app = GlobalAddAtom(Marshal.StringToHGlobalAnsi(appname));
ushort topic = GlobalAddAtom(Marshal.StringToHGlobalAnsi(topicname));
this.packedParam = PackDDElParam(WM_DDE_INITIATE, (System.IntPtr)app, (System.IntPtr)topic);
SendMessage(dtaProcess, WM_DDE_INITIATE, Process.GetCurrentProcess().MainWindowHandle, this.packedParam);
This should return a WM_DDE_ACK message to the main thread as follows...
protected override void WndProc(ref Message m)
{
\\WM_DDE_ACK = 996
if (m.Msg == 996)
{
MessageBox.Show("");
}
else
{
base.WndProc (ref m);
}
}
I do not receive the WM_DDE_ACK message. Also, the PackDDElParam method (user32.dll) returns a negative value. Is this correct?
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Hi,
Can anybody provide me documentation of Expression Evaluator Project implemented in C# by werdena,on this site ,please help me if you can.
Thanx.
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You'll have to go to the article that you downloaded it from, scroll to the bottom of the page and you'll find a discussion board just like this one. Post a question asking for additional information there. Articles are, for the most part, supported by the people that wrote them.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Hi at all,
Im developing a custom control based on CF DataGrid. I added new functionalities like customizable rows height and another bit changes.
My problem is that i cant add the control in the toolbar because it appear disbled (gray colour).
I have read some articles, but im lost.
Anybody can help me?
Thanks in advance
Juan (sorry for my bad english).
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when i use procedure
CommandType is procedure
and then run ExecuteNonQuery()
the return value of ExecuteNonQuery() is always -1
so the return value of ExecuteNonQuery is useless when use procedure?
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It executes the query and just return the no of rows affected.
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Hai
For UPDATE, INSERT, and DELETE statements, the return value is the number of rows affected by the command. For all other types of statements, the return value is -1. If a rollback occurs, the return value is also -1.
For more information See
SqlCommand.ExecuteNonQuery Method[^]
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the procedure execute correctly and the data in DB changed.
but the return value is -1
why?
return value just useful when execute sql query?
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I have a parent class, Base with 2 child classes, Child1, and Child2.
Base has a public int iNo. I init Child1 from another class. So Child1 inits Base.
Now, in Child1, I set Base.iNo = 10. Then i create the second child class, Child2 from Child1. Now, in Child2, when I call Base.iNo, i don't get 10.
I know the problem is that the child classes works with 2 seperate instances of the Base class, but how can i resolve this.
i want both child classes to inherit from the same Base instance. How do i do this.?
Thank you
There's someone in my head but it's not me - Pink Floyd
gunigugu
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You inherit a class, not an object. Child1 and Child2 only inherits the definition of Base, Child1 objects and Child2 objects still are separeate objects. It's the same way as if you have two separate Base objects, they each have there own set of members, although they come from the same class.
If you want to share a member across objects, you have to declare it as static.
---
b { font-weight: normal; }
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Thank you very much, I never thought of static variables...
There is someone in my head but it's not me - Pink Floyd
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I have a C# Windows Forms application, where the executable really has to be small. It has about 5 or 6 forms, and the executable size is about 230 KB. By toggling the show all files in the Solution Explorer in Visual Studio, I can change the Build Action from Embedded Resource to None for the .resx files generated by the designer. With this, I shrank the EXE size to 100 KB.
My forms are not Localizable, and I haven't included any graphic files directly. The ImageLists I use are loaded from a bitmap strip with code, and not in the designer.
My code as it is doesn't break without the .resx files, but I wonder if there are other situations where they are used that I'm not aware of.
So, does anyone know?
-- LuisR
Luis Alonso Ramos
Intelectix - Chihuahua, Mexico
Not much here: My CP Blog!
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