|
PhilDanger wrote: Console.WriteLine("Please enter \"1\" instead");
|
|
|
|
|
Beautiful!
Upcoming events:
* Glasgow: Mock Objects, SQL Server CLR Integration, Reporting Services, db4o, Dependency Injection with Spring ...
"I wouldn't say boo to a goose. I'm not a coward, I just realise that it would be largely pointless."
Ready to Give up - Your help will be much appreciated.
My website
|
|
|
|
|
Marvellous.
Regards,
Satips. ![Rose | [Rose]](https://www.codeproject.com/script/Forums/Images/rose.gif)
Don't walk in front of me, I may not follow;
Don't walk behind me, I may not lead;
Walk beside me, and just be my friend. - Albert Camus
|
|
|
|
|
sinji_solanki wrote: enter a number
2.
sinji_solanki wrote: and display next 5 prime numbers.
3, 5, 7, 11, 13
Ok. Now what?
|
|
|
|
|
You have conquered this level.
You now move to the next level:
Enter a 10-digit integer number consisting of odd digits only, and write a program
to print the next 5 primes.
|
|
|
|
|
Regards,
Satips.
Don't walk in front of me, I may not follow;
Don't walk behind me, I may not lead;
Walk beside me, and just be my friend. - Albert Camus
|
|
|
|
|
Shame on you.... Go do you own homework, if you have a specific problem with your homework, such as why something isn't working as you expect, then ask a question. But don't expect people to do your work for you. It won't get you far in the industry.
"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon
|
|
|
|
|
Hi,
I am creating a custom membership provider, one of the properties I had to override as follows:
public override bool EnablePasswordReset
{
get { return m_EnablePasswordReset; }
}
In my Initialize method I have to go and set m_EnablePasswordReset. I don't like setting private variables without using a property. Why can't I add a setter in this property like:
public override bool EnablePasswordReset
{
get { return m_EnablePasswordReset; }
set { m_EnablePasswordReset = value; }
}
I hope someone can help.
Regards
ma se
|
|
|
|
|
you can if there is a virtual property with both a get and a set part in the base class.
that's what the error message should indicate (I guess it is: "no suitable method found
to override")
|
|
|
|
|
Of course it depends on base class property declaration.
BTW
public virtual bool EnablePasswordReset;
{
get { return m_EnablePasswordReset; }
}
defines a read-only property, maybe the base class author considered a bad thing allowing public write access to the variable.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
|
|
|
|
|
I write a function that passes a string parameter to my ws and return the hash code of that parameter.
But when I compare it to the hash code of the original string in my client-side code, they were not equal.
Could anybody help me please?
WS Code:
[WebMethod]<br />
public int MyWebFunction(string data)<br />
{<br />
int retVal = data.GetHashCode();<br />
<br />
... rest of my code ...<br />
<br />
return retVal;<br />
}
Client-Side Code:
public bool DataUploader(string data)<br />
{<br />
bool retVal;<br />
int hashCode;<br />
<br />
MyWebService ws = new MyWebService();<br />
hashCode = ws.MyWebFunction(data);<br />
<br />
if (hashCode == data.GetHashCode())<br />
{<br />
retVal = true;<br />
}<br />
else<br />
{<br />
retVal = false;<br />
}<br />
<br />
return retVal;<br />
}
Why does it always returns false?
I'll make sure they remember my name a hundred years from now!
|
|
|
|
|
There are two possibilities:
- the strings are NOT equal.
- the hashing is different; please read the remarks on MSDN about String.GetHashCode()
|
|
|
|
|
Apparently the string is the cause of my problem.
Using the same web method, I run these codes which return two different results.
Returns true:
public void DoUpload()<br />
{<br />
string data = "This is my string to upload.";<br />
<br />
UploadData(data);<br />
}
Returns false:
public void DoUpload(string cmd, string conn)<br />
{<br />
DataSet ds = new DataSet();<br />
OleDbDataAdapter oAdapter = new OleDbDataAdapter(cmd, conn);<br />
<br />
oAdapter.Fill(ds);<br />
<br />
string data = ds.GetXml();<br />
<br />
UploadData(data);<br />
}
How could that happen? What's the difference between those two string?
I couldn't find any reason why the first code returns true while the other returns false...
I'll make sure they remember my name a hundred years from now!
|
|
|
|
|
Hi,
GetXml() returns a structured text with < and > signs and everything,
it will not return "This is my string to upload."
I am not familiar with databases nor XML, but I think we established your
two strings ARE different. You should have looked at the strings themselves
in the first place !
|
|
|
|
|
Thanks for the reply, Luc Pattyn.
Yes those strings are indeed different, and I'm aware of that.
But the real problem is when I use those strings as a parameter value in UploadData(string data).
My function works just fine if I use variabel like string data = "Blablabla" or string data = TextBox1.Text or string data = "Bla\nbla\nbla.", they're all return true.
But if I use string data = ds.GetXml(), my function returns false.
Is the string generated with GetXml() has differences from the usual string?
Correct me if I was wrong, but aren't they both string type?
Please help me on this...
WS Code:
[WebMethod]<br />
public int MyWebFunction(string data)<br />
{<br />
int retVal = data.GetHashCode();<br />
<br />
... rest of my code ...<br />
<br />
return retVal;<br />
}
Client-Side Code:
public bool DataUploader(string data)<br />
{<br />
bool retVal;<br />
int hashCode;<br />
<br />
MyWebService ws = new MyWebService();<br />
hashCode = ws.MyWebFunction(data);<br />
<br />
if (hashCode == data.GetHashCode())<br />
{<br />
retVal = true;<br />
}<br />
else<br />
{<br />
retVal = false;<br />
}<br />
<br />
return retVal;<br />
}
I would be very grateful if you could email me the solution (orkaholic@gmail.com).
Again, thanks for your reply Luc.
I'll make sure they remember my name a hundred years from now!
|
|
|
|
|
I am writing a C# application from which I want to play some Shockwave Flash Video (.swf). Now I can use Interop.ShockwaveFlashObjects.dll & AxInterop.ShockwaveFlashObjects.dll to play the video.
Anybody knows what kind of license I need to ditribute these DLLs with my exe?
Thanks
-Tapas
|
|
|
|
|
As these are just the .NET wrappers around the Flash object, I would assume that the only requirement would be that Flash was installed on the client.
|
|
|
|
|
Hi all
I am populating a datagrid with details directly from the database.
now i some new insertion is done in database, the grid should be refreshed..so i am again calling load method to repopulate the grid.Can i refresh the grid with only latest changes that means i dont want to reload the entire data instead i need to load recent data and should be appended to the grid .Is it possible if possible how can i do it
Thanks in advance
Regards
DilipRam
|
|
|
|
|
You probably want to take a look at the BindingSource[^] class. It should handle what you're looking for.
|
|
|
|
|
Thanks for the reply,but since i am loading the data into a datatable and using the datatable count i am adding new row to the grid..so how can i used biniding concept here.can any one help me here
Regards
DilipRam
|
|
|
|
|
The bindingsource does all that for you. When you update the underlying dataset, it updates anything the bindingsource is linked to.
|
|
|
|
|
i m trying to add string's in this collection by calling the Add method of this collection type, but every time i tried to add string in collection of type AutoCompleteStringCollection it gives and invalid cast exception
|
|
|
|
|
You need to make sure that the AutoCompleteSource property is set to AutoCompleteSource.CustomSource. You should be doing something like this:
AutoCompleteStringCollection a = new AutoCompleteStringCollection();
a.Add("test");
a.Add("test 2");
this.textBox1.AutoCompleteCustomSource = a;
this.textBox1.AutoCompleteSource = AutoCompleteSource.CustomSource;
-----------------------------
In just two days, tomorrow will be yesterday.
|
|
|
|
|
Greetings!
I am currently trying to implement a small IPC Protocol for 2 of my applications.
Basically, one of them needs to know if the other one is running, and if yes, tell it some orders.
My current setup consists of 3 Main projects:
- IPC: Holds an interface IIPC with a couple of methods that have to be shared.
- MainForm: implements the interface IIPC and is supposed to be shared. Also "starts" the IPC Server.
- PluginDLL: is loaded into a 3rd-party app, and tries to talk to MainForm.
The usual setup consists of the 3rd-party app, which loaded PluginDLL. MainForm is supposed to be started by PluginDLL in case a function is requested.
But its also possible that MainForm is already running, and 3rd-party app is loaded after that. As MainForm exists, its supposed to be used rather than creating a new instance.
First problem there:
I've tried to find out whether MainForm is running by checking if the Channel is already registered:
[MainForm, "serverside"]
class MainForm : MarshalByRefObject, IIPC { ... };<br />
...<br />
Type t = typeof(MainForm);<br />
string ServerChannel = "serverMainForm";<br />
string ObjectName = "mfObject";<br />
...<br />
IpcServerChannel ipcChannel = new IpcServerChannel(ServerChannel);<br />
ChannelServices.RegisterChannel(ipcChannel,true);<br />
RemotingConfiguration.RegisterWellKnownServiceType(t, ObjectName, WellKnownObjectMode.Singleton);
[PluginDLL, "clientside"]
IIPC getIPCObject() {<br />
IpcClientChannel ipcChannel = new IpcClientChannel();<br />
ChannelServices.RegisterChannel(ipcChannel,true);<br />
IIPC ret = (IIPC)Activator.GetObject(typeof(IIPC), "ipc://" + ServerChannel + "/" + ObjectName);<br />
ChannelServices.UnregisterChannel(ipcChannel);<br />
try<br />
{<br />
if (ret.Equals(null)) return null;<br />
}<br />
catch<br />
{<br />
return null;<br />
}<br />
return ret;<br />
}
Unfortunately, GetChannel returned null, even tho I just registered the Channel before.
Enumerating ChannelServices.RegisteredChannels does not return anything inside PluginDLL, inside MainForm it does show the channel I just registered 2 lines before.
For that purpose, I had to use the exception that is thrown when accessing the proxy object with no serverobject behind.
This problem is worked around, but I'd like to know if theres a better way to check if I have an object behind the proxy, or either if the channel exists.
Second problem is the more serious one:
Using above Workaround, I managed to catch the circumstance that MainForm is not running, and run it in this case using System.Diagnostics.Process.Start(). After that, the code above generates a valid proxy - it seems.
But the call to ret.Equals(null) simply hangs, rather than returning false and retrieving the remote object OR failing and throwing an exception - it simply hangs, and wont respond. I also tried to use my own Method/Property/whatever back there instead of Equals, all of them simply hung.
So, what might be the reason for the Proxy object to hang when there is an object?
Or probably, is there any other way to communicate between 2 applications that does not need any additional stuff installed (like MSMQ), that isnt dependant on a port (Remoting with HTTP/TCP; its rather unlikely that a Channel with my programs ID exists already than an arbitrary port that may be used by other programs) or that depends on other lower level code (PostMessage with WM_COPYDATA, needs WinApi and other unmanaged stuff)
Regards, BhaaL
|
|
|
|
|
Hello, I have exactly the same problem. It seems that combination of IPC and Process.Start with RedirectStandardOutput is the problem. And only on Windows XP, it works in all other OS, which is very hard to debug then. Have you found a solution for this? I use RedirectStandardOutput to get message from Console App, that IPC channel is set up. I can certainly wait (say 2 seconds), but it is not a solution, but only a terrible workaround.
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
