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Hi everyone. I have been creating an application under .NET 2002. I have recently installed .NET 2003 and converted my solution to 2003. I have noticed the following 2 "oddities":
1. Data will not load into a ComboBox that is bound to data from a database and has the Sort property set to true. In .NET 2002, this is okay, at least for the control that had the problem under .NET 2003. I did have some problems with setting Sort to true on a data-bound ComboBox. Workaround: Turned Sort off on that control. All other ComboBoxes load fine with no changes.
2. There are 2 ListBoxes next to each other. The left one is filled with options from the database. When double-clicking an item in the left list, it is removed and then added to the ListBox on the right. However, under .NET 2003, the first entry does not become visible until I add a second item. Workaround: I removed the BeginUpdate and EndUpdate calls from around the double-click logic and it works fine.
So, has anyone see any weird stuff like this? Not major, but I find it odd that the functionality for these has changed like this. The documentation for each item above is the same under .NET 2003, so I think they are bugs. Also, how do I submit bugs to Microsoft without using up my incidents for the year?
BTW, everything functions fine under .NET 2002.
Thanks
abbomar
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i have been trying to figure out a way to send this xml data to ups for rate quotes.
the goal here is to connect to this url, and send data. then receive the data it sends back.
i get an exception because i'm trying to connect to a url ( and subdirectories ) instead of an IP.
how do i connect to this url and send the data to the appropriate place?
here is an example of what i'm attempting:
TcpClient tc=new TcpClient("https://www.ups.com/ups.app/xml/Rate");
NetworkStream ns=tc.GetStream();
StreamWriter sw=new StreamWriter(ns);
sw.WriteLine(xml);
sw.Flush();
StreamReader sr=new StreamReader(ns);
txtResponse.Text = sr.ReadLine();
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I've got a class that does this, it's in hands of editor right now. Don't know when he's going to release it.
Anyway, if you want help, you need to first let us know what the exception was.
norm
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thanks for the reply, .. here is the exception:
System.Net.Sockets.SocketException: The requested name is valid and was found in the database, but it does not have the correct associated data being resolved for
at System.Net.Dns.GetHostByName(String hostName)
at System.Net.Dns.Resolve(String hostName)
at System.Net.Sockets.TcpClient.Connect(String hostname, Int32 port)
at System.Net.Sockets.TcpClient..ctor(String hostname, Int32 port)
at ups.Form1.btnSend_Click(Object sender, EventArgs e) in c:\visual studio projects\ups\form1.cs:line 202
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Did you try:
1. TcpListener must start listening before TcpClient attempts to connect.
2. Try connect to "localhost" or "127.0.0.1"
3. Port number specified - is it available or has it been taken?
norm
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the same script connects to 'localhost' just fine.
i think my problem is connecting to https://www.ups.com/ups.app/xml/Rate
if i just use "ups.com" , it connects, but then it hangs because ideally i need to send the data to the "ups.com/ups.app/xml/Rate" application so my app can receive data back.
once i create the connection, is there a way to navigate to the 'Rate' app before i send the data?
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I can't answer your question. If you can connect to your localhost and not to a remote address, ten thousand things can go wrong. I don't think the fact that UPS application is expecting some data (perhaps password) has anything to do with whether or not its TcpListener accepts or reject your call - it must accept the incoming connection (TcpClient) before it can accepts anything it expected. Therefore, should there be a problem, it shouldn't be this. If it is indeed expecting some data, say userID/passed, it should first TcpListener.AcceptConnection. Then, the application should read from the network stream - if it can't find the expected data, drop the connection. But in this case, it has already accepted the connection before it drops it - therefore, Connect shouldn't fail. But TcpClient.Send(...) will - you can't send to a closed socket.
norm
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thanks, but i think i am miscommunicating here.
i can connect to ups.com , .. just not the 'Rate' program the UPS documentation calls for me to request information from.
all the authentication is done in the xml string i'm sending to them.
the problem seems to be with me trying to connect to a sub directory of a domain.
so i am probably supposed to connect to ups.com , .. but i must figure out how to send the data to that Rate app in the sub directories.
thanks a lot for your time though!
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no problem. Sorry I can't be of any help here. Good luck.
norm
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Ack - norm, did you actually understand his code at all?
--
-Blake (com/bcdev/blake)
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I'm afraid you are using entirely the wrong tool for the job. URL's and Ports are in no way interchangable. You need to be using WebRequest not TcpClient. TCP is a stream protocol between an IP address/port pair on one computer and a IP address/port pair on another computer. HTTPS is an application level protocol between that runs inside an encrypted tunnel that's inside a TCP connection.
Since you are sending XML to this URL I suspect it is a web service of some flavor, and even easier you should be using a proxy generated from their WSDL description of the service.
--
-Blake (com/bcdev/blake)
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Hi, do we need to implement our own DataGrid paging for Windows Form DataGrid?
I understand that to implement paging for ASP.NET DataGrid, one simply specify: InPageIndexChanged handler as DataGrid's attribute.
But anyone did that for WindowsForm?
Thanks!
norm
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Does anyone out ther know how to work around the problem that Interops (Office one for sure) cannot be included in assemblies that are strong named?
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If the product includes a Primary Interop Assembly (PIA) those should be strongly named already. Office has Primary Interop Assemblies available, check the general MSDN downloads section for them.
If you are generating your interop assembly using VS.NET; in the project properties you will find a setting which lets you specify a keyfile to use for the generated interop assembly. Unfortunately this feature isn't available in VB.NET, so you'll have to resort to using the command line tools aximp and tlbimp (refer to MSDN for their usage).
HTH,
James
"then when you go to bed...wait, you dont do that do you....ok....when you plug into the 'hive mind' to charge yourself, ill hack into your head"
Nnamdi Onyeyiri over MSN
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Thank you sir... It would have been much easier if MS read the AssemblyInfo file for the project (but maybe is in the next release)
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Using a web form and making a connection using a socket connection I can do.
The problem is executing a command on the UNIX box once I am connected.
I need ANY and ALL help
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Aren't you using a client-server architecture? I would assume that you just want to code the server in C/C++ on linux and the client in C#. Your communication protocols are all that really need to be the same. The server would just execute a certain unix command when it reads a certain keyword that the client sends.
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I get connected using the socket. Now I need to execute some unix command and I do not know how to proceed once I am connected.
Here is a sample of my code: (The Process object code is converted from VB.NET)
Socket tempSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
try
{
tempSocket.Connect(endpoint);
if(tempSocket.Connected)
{
this.txtstream.Text = "connected";
try
{
string strResults = "";
ProcessStartInfo psCmd = new ProcessStartInfo();
//Setup New Process Info
psCmd.FileName = Environ("ComSpec");
psCmd.RedirectStandardInput = False;
psCmd.RedirectStandardOutput = True;
psCmd.Arguments = "/c ls"; psCmd.UseShellExecute = False;
Process procCmd = Process.Start(psCmd);
//Read in Results & Write to current cmd session
strResults = procCmd.StandardOUtput.ReadToEnd();
this.txtip.Text = strResults;
procCmd.WaitForExit;
}
catch
{
this.txtip.Text = "no directory list";
}
}
}
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Hi, I want to override an OnClick event on a datagrid and display a dropdown menu. Here's the code:
private void OnClick(object sender, System.EventArgs e)
{
int row = dgReport.CurrentCell.RowNumber;
int col = dgReport.CurrentCell.ColumnNumber;
//Question: How can I retrieve:
//(1) selected Cell width
//(2) selected Cell height
//(3) selected cell position
//I don't think I found anything from DataGrid properties. Anyway, once I have cell width, cell height, and cell position, I can dynamically create a dropdown list at the specified location and size.
}
Thanks.
norm
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hi,
here is the one way you could do this, but there could be an easier way.
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemwindowsformsdatagridclassgetcellboundstopic.asp
the method is GetCellBounds, which returns the Rectangle object which has width, height, X and Y properties.
ankita
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In VB6 I used the following code with no problems:
xlsheet.HPageBreaks.Add Before:=xlsheet.Rows(rowcnt)
In C# I don't know what parameter I'm supposed to pass to the HPageBreaks.Add method. I keep getting the error:
"Object must be a normal type and not an array"
I've tried passing it an excel range, and the row number with no success.
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Hi all, hope you can help on this one.
I have a C++ struct like this below:
struct OTHERSTRUCT Thing[MAX_NO] = {
{1, "x"},
{2, "xx"},
};
where OTHERSTRUCT is:
struct OTHERSTRUCT
{
int Num;
CString Desc;
};
My question is how do i replicate this in C#? the only way i have so far got this to work is shown below:
public struct tagLINE
{
public tagLINE(int ACode, string ADesc)
{
Code = ACode;
Desc = ADesc;
}
int Code;
string Desc;
};
And creating an instance of it like this:
public tagLINE[] A = new tagLINE[3] {new tagLINE(0, "0"),
new tagLINE(1, "1"),
new tagLINE(2, "2")};
Do i really have do all this "new"ing? Any feedback would be
great. 
Simon Wren
simon.wren@nesltd.co.uk
C++ Application Team Leader
National Energy Services Ltd
Visit Us: www.nesltd.co.uk Or: www.nher.co.uk
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Simon Wren wrote:
Do i really have do all this "new"ing?
yes
PS: everything else looks fine
leppie::AllocCPArticle("Zee blog");
Seen on my Campus BBS: Linux is free...coz no-one wants to pay for it.
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So, normally a structure is not new'd when instanciated, except when it's going into an array? This means that the array can only hold reference types, right? Are the value types actually boxed as they're added to the array?
I appreciate you sharing your knowledge on this stuff or pointing me somewhere that explains it better.
Regards,
Alvaro
Can I ask you a question?
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