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Hi,
I'm trying to obtain the row number yet I haven't been able to figure out how. I have tried this:
x = reunionBindingSource.Position;
However, since I have already done this:
this.reunionBindingSource.Sort = "LastName";
the position does not equal the row number. I know I can save the position number, unsort it, grab the row number from position, resort it, and set the position. I could also build a dictionary before sorting it using the database key as the dictionary key, but there has to be a better way.
Thank you,
Glenn
modified on Thursday, May 13, 2010 1:01 PM
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Sorry - but not sure what a non-grid view is...
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What I mean from a non-grid view is a detail view, where the controls are individual controls on a form instead of a grid view.
Thank you,
Glenn
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Hi
Does anyone have any decent links or documentation for non blocking TCP programming. I have a server that accepts incoming connections and processes requests from users but I cant get it working very well. Any help would be appreciated.
Thanx
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When you accept you get a socket.
You process that socket in another thread. Either create one or use the thread pool.
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Hello,
I've some list<string>, i would like to retrieve a sub list of a given list from 'startPos' till 'endPos'
how can i do that ?
thanks
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If you are using List<T>[^] class then see GetRange[^] method.
If you are talking about a different kind of list then you need to elaborate a bit.
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and after GetRange, i should Clone it ? (avoid shallow Copy)
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igalep132 wrote: and after GetRange, i should Clone it ?
It depends on your requirements.
If you really need to avoid shallow copy, then you can make a deep copy on result returned from GetRange .
For this purpose you can use a generic method like this one:
public static T DeepCopy<T>(T obj)
{
object result = null;
using (var ms = new MemoryStream())
{
var formatter = new BinaryFormatter();
formatter.Serialize(ms, obj);
ms.Position = 0;
result = formatter.Deserialize(ms);
ms.Close();
}
return (T)result;
}
The code above should work for all serializable types.
modified on Thursday, May 13, 2010 10:49 AM
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thanks
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Dear experts,
I'm often creating a lot of small applications for learning some features of .net or for creation of small tools. I do this mainly, by creating a standard winforms-application with some buttons and e.g. some stupid text-controls hacking in the code; that's it.
But I continuously find out, that some of these small applications tend to evolve over time to some bigger projects and I get more and more problems for the update/extension/maintenance of my "hacking"-versions.
I experienced, that I always need the same standard-features during the evolution of these small app's.
Some of these features are:
--> Clear separation of View(Form) and Controller(AppLogic) and sometimes also Model (This actually is the ModelViewController-Pattern)
--> The Controller should run in it's own thread
--> Basic LoggingSupport
--> Basic support for updating the view by some event-like messaging
--> Getting some User-Feedback into the Controller (e.g. if a file is not found)
--> ..... and may be some more basic features .....
Creating these features for each application again and again consumes a lot of time.
My Question: Is there some small "Standard"-Framework available which supports my type of programming - may be via configuration?
Thanks
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Assuming you are using a version of Visual Studio you should be able to create a new template from your project. Then when you need a new sample you can create it from your template.
It's time for a new signature.
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Dear experts,
I want to update the configFile "app.config", but the "Save(..)" function does not work.
Surprisingly, if I use the "SaveAs(..)" function (storing the config to another file),it works
static void Main(string[] args)
{
Configuration config =ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
config.AppSettings.Settings.Add("Modification Date",DateTime.Now.ToLongTimeString() + " ");
config.Save(ConfigurationSaveMode.Full);
config.SaveAs("Test.config", ConfigurationSaveMode.Full);
}
Question: What sense does the Save()-Method make?
Can somebody help me?
Thanks in advance
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Is it throwing any error?Can you check if the file is readonly
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No exception is thrown by the Save()-Method, the file is also not "read-only"
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The app.config file is not updated during execution of application,but it would be writing a .xml document in the bin folder with applicationname.exe(Xml configuration File), and each time your file will be updated but not app.config
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Sorry, of course, app.config is not expected to be updated, but I expect that in the bin-directory one of the files ".xx.exe.config" or "xx.vshost.exe.Config" should be updated at least. But none of them is updated.
I', puzzled. What's the purpuse of the Save()-Method?
Thanks for you kind replies
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Hi
In my application, the Main form starts a thread in another class.
In this thread I need to show another form as modeless. If i call it in the thread, the form shows but in a hanged state. no controls are visible and it is in not responding state.
How can i achieve my requirement.
Please help.
Thanks.
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Did you use BackgroundWorkerClass???
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No.
It is a normal class whose object i'm using in mainform
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Hi,
this article[^] deals with Controls and Threads.
Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]
I only read formatted code with indentation, so please use PRE tags for code snippets.
I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).
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You have to create all your forms on the GUI thread, of which there can only be one in the application.
I suggest you invoke a method back onto the Main Form thread to create the new modeless form.
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I tried calling a delegate.BeginInvoke in the thread for the main form in which i called the new form.show. but same results. the new form is in hanged state.
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BeginInvoke is not needed as the Show is not going to block any threads. Just call MainForm.Invoke with the delegate to show the newForm. eg.
Thread thread = new Thread(new ThreadStart(StartNewThread));
thread.Start();
}
void StartNewThread(){
this.Invoke(new MethodInvoker(this.LaunchForm2));
}
void LaunchForm2(){
Form2 frm = new Form2();
frm.Show();
}
I know as a standalone example my code would be daft, why start a new thread just to invoke back to the original thread, but I assume you are doing some other processing in the secondary thread to make it worthwhile.
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