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Bastard!
".45 ACP - because shooting twice is just silly" - JSOP, 2010 ----- You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010 ----- "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997
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From you John, I take that as a compliment of the highest order
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I think the mere fact that I'm handing out such obvious compliments might suggest that I'm getting soft in my old age.
".45 ACP - because shooting twice is just silly" - JSOP, 2010 ----- You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010 ----- "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997
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Go out and shoot a hippy. That should restore things to the natural order.
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This link[^] might help you.
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Hi,
I know I posted a similar question a couple of days ago and I'm sorry about that but i'm going crazy about this problem...
So I will simplify the scenario.
I am developing a plugin system for a windows service application.
The plugin system has been developed with the AppDomain paradigm. I won't get into details of how my system works, but will demonstrate in a simple code example (of which I tried
namespace Foo
{
[Serializable]
public class Foo
{
Thread workThread_;
public void Initialize()
{
workThread_ = new Thread(new ThreadStart(DoWork));
workThread_.Start();
}
public void DoWork()
{
int i = 0;
while (i < 500)
i++;
throw new Exception("Unhandled exception");
}
}
}
namespace AppDomainTest
{
public class Bar
{
AppDomain new_domain;
public Bar()
{
}
private void new_domain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
{
new_domain = null;
}
public void InitializeBar()
{
Foo.Foo foo_test;
new_domain = AppDomain.CreateDomain("Auxilary domain");
foo_test = (Foo.Foo)new_domain.CreateInstanceFromAndUnwrap("Foo.dll", "Foo.Foo");
new_domain.UnhandledException += new UnhandledExceptionEventHandler(new_domain_UnhandledException);
foo_test.Initialize();
}
}
}
I kept reading about AppDomains and how they are great for plugins and isolation and stability etc... but when the plugin has UnhandledException the whole application crashes with its main AppDomain crashing...
In my case a plugin can spawn multiple threads to do its work and those threads never interact with the core system, only through raising plugin events...
So my question is how to really protect from plugin failures (Unhandled Exception), so when 1 plugin crashes the rest of the application remains intact (continues to run) bearing in mind that a plugin can spawn multiple threads to do its work?
Thank you!
See the world in a grain of sand...
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This is exactly what AppDomain.UnhandledException is for, I thought. This post surprises me.
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BobJanova wrote: This post surprises me.
Pretty soon, that will stop happening.
".45 ACP - because shooting twice is just silly" - JSOP, 2010 ----- You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010 ----- "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997
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Yes, I thought that also... but surprise surprise... damned M$ pulled a fast one...
But I can't accept that there is no other way to do this in .NET?
Which means that AppDomain is actually quite useless if this does not work... I don't see the point of AppDomains if you can't create a plugin system... this is very confusing...
Any other ideas?
See the world in a grain of sand...
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DataGridView's SelectionChanged Event Fire earlier than CellDoubleClick Event.
But I hope SelectionChanged after CellDoubleClick.
My Program require:
1> DoubleClick any part of the row, this row selected=true.
read a value from this row as parameter order to open a dialog for do something.
2> When SelectionChanged, another controls's value will changed from the new selected row.
But if DoubleClick fired that another controls's value need not change.
How to do?
Thanks.
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WinForm Controls often fire more events than you would expect.
Maybe SelectionChanged fires more than once, say first to indicate a possible previous selection is no longer selected, then to tell you something new is selected. And some other events may be present in between.
Suggestion: Add some logging to your event handlers to see what happens in sufficient detail.
Luc Pattyn [Forum Guidelines] [My Articles] Nil Volentibus Arduum
Please use <PRE> tags for code snippets, they preserve indentation, improve readability, and make me actually look at the code.
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Maybe not use DoubleClick and SelectionChanged?
Use MouseDown, instead, and test for how many clicks?
if (e.Button == MouseButtons.Left)
{
if (e.Clicks == 1)
{
DoSelectionstuff();
}
else if (e.Clicks == 2)
{
DoDoubleclickStuff();
}
Might not work... But you can set a flag in the MouseDown event indicating whether it was a 1 or a 2 click, then process your SelectionChange code appropriately.
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Really? Not in my app. I had to use it to prevent row selection on doubleclicks. Hmm.
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I try to again. not always 1, but first click still call DoSelectionSuff()
Then call DoDoubleClickSuff()
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Ah... Try moving the code currently in the OndoubleClick into a separate function (use the Refactor tool to create the function), then "disconnect" the event from the grid. Call the separate function from the MouseDown event when 2 clicks are seen.
If it doesn't work, just reconnect the DoubleClick. No harm done.
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Hi guys, can some one please help me, m trying to upload files using ajaxupload.js and save to database via the handler file in c#, pls any one help..
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Why don't you read the instructions that come with ajaxupload.js, whatever that is?
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The instruction doesnt tell me how to use in handler file, but it only save it to the local disk. thanks for replying
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Prananta_Price, i understand that it is saving to the server, but after clicking the browse button i want to be able to click on save or upload button that will access the uploaded file like in your normal asp file uploader.
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Hello experts,
I would like to ask again if how will I'm going to edit my web services because it seems that it's only working on my local machine.
I tried to upload my web service and the 2 database(ms access 2003 and sql server 2005 express) to a free asp.net hosting site but I got and error that I cant access the database. I detach my sql server 2005 express to my sqlSERVER Management studio before I upload it.
Below is my sample code to my asmx file.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Data.SqlClient;
using System.Data;
using System.Data.OleDb;
namespace WebService1
{
public class Service1 : System.Web.Services.WebService
{
[WebMethod]
public DataTable getData()
{
OleDbConnection con = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\\MemberSites\\MemberSites_AspSpider_Info\\akosiDAN\\database\\Database1.mdb");
DataSet ds = new DataSet();
DataTable dt = new DataTable();
ds.Tables.Add(dt);
OleDbDataAdapter da = new OleDbDataAdapter ("Select * from phonebooktable",con);
da.Fill (dt);
return dt;
}
[WebMethod]
public DataTable getData()
{
SqlConnection con = new SqlConnection("server= DANDAN-PC\\SQLEXPRESS;uid=MYID;pwd=MYPASSWORD;database=phonebookdatabase");
DataSet ds = new DataSet();
DataTable dt = new DataTable();
ds.Tables.Add(dt);
SqlDataAdapter da = new SqlDataAdapter("Select * from phonebooktable", con);
da.Fill(dt);
return dt;
}
}
}
Any help are kindly appreciated.
Thanks,
DAN
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My first idea: I see you have connection strings hardcoded into your source code. Are you changing them before uploading to match configuration from the hosting server? If not, it can't work, because (most likely) your service cannot find server DANDAN-PC, nor file "C:\\MemberSites\\MemberSites_AspSpider_Info\\akosiDAN\\database\\Database1.mdb".
You should move both those connection strings to the web.config file.
Don't forget to rate answer, that helped you. It will allow other people find their answers faster.
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Hello,
Thanks for the reply,I tried changing my connection strings now provided in my web hosting site. The connection strings given by my host is in this link
http://www.aspspider.com/tips/Tip18.aspx[^]
I'm not that so much sure but doesn't the ms access database supposed to work since I followed it. I tried commenting the one using sql server connection string just to test the ms access 2003 and I even tried to re add my web reference to be sure but still I got an error.
To give clarification my error is in below
System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections.
I'm also confuse since why does my error state that I have error in sql but I'm using oledb since my database is ms access 2003 and I already comment the block of code using sql.
Any help are kindly appreciated.
Thanks,
DAN
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