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That is a limitation of the ThreadPool I think. Could also be slow DNS resolution.
xacc.ide - now with TabsToSpaces support IronScheme - 1.0 alpha 4a out now (29 May 2008) ((lambda (x) `((lambda (x) ,x) ',x)) '`((lambda (x) ,x) ',x))
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the same code works different in the context of two applications.. don't think the thread pool or DNS has anything to do with that..
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Mark Snow wrote: the same code works different in the context of two applications..
Sorry didnt catch that 
So what is the differences between the 2 application instances? Is the input different? Different PC's? Debug/release?
xacc.ide - now with TabsToSpaces support IronScheme - 1.0 alpha 4a out now (29 May 2008) ((lambda (x) `((lambda (x) ,x) ',x)) '`((lambda (x) ,x) ',x))
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same pc, both in debug. input in the same format. in the test application just put random IP's, in the actual application it is loaded from a file that is also generated randomly (same random IPp's).
this thing is driving me mad for a few days now.. i am trying to figure out what could be causing different behaviour. i thought it was the other threads that are blocking it, commented the code that was starting the rest of the threads, nothing changed.
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I am out of ideas 
But try this. Add Trace.WriteLine after ever statement, then use a tool like DebugView to see the timings of the calls. That could hint where it is 'lagging'.
xacc.ide - now with TabsToSpaces support IronScheme - 1.0 alpha 4a out now (29 May 2008) ((lambda (x) `((lambda (x) ,x) ',x)) '`((lambda (x) ,x) ',x))
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I have values which are numeric and string values. lets say 1,2 ,3 and like xc1,xc2 . I want to sort these values. First sorting numeric ones than none numeric ones. How can I do this with dataview or datatable
I have tried this one...
dataview.sort="column1 ASC";
but its not sorting my data.
Datatype of column1 is string.
Is there any way to use IComparable interface to sort dataview data.
Thanks too much.
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actually the dataview sort DOES sort your column, just not the way you want it to.
Create another column with only the numeric values (assumes you own the datatable) and add it to the sort string
dataview.sort = "Col1, Col2"
Never underestimate the power of human stupidity
RAH
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public static SqlDataAdapter CreateSqlDataAdapter(SqlConnection connection)
{
SqlDataAdapter adapter = new SqlDataAdapter();
adapter.MissingSchemaAction = MissingSchemaAction.AddWithKey;
adapter.SelectCommand = new SqlCommand(
"SELECT CustomerID, CompanyName FROM CUSTOMERS", connection);
adapter.InsertCommand = new SqlCommand(
"INSERT INTO Customers (CustomerID, CompanyName) " +
"VALUES (@CustomerID, @CompanyName)", connection);
adapter.UpdateCommand = new SqlCommand(
"UPDATE Customers SET CustomerID = @CustomerID, CompanyName = @CompanyName " +
"WHERE CustomerID = @oldCustomerID", connection);
adapter.DeleteCommand = new SqlCommand(
"DELETE FROM Customers WHERE CustomerID = @CustomerID", connection);
adapter.InsertCommand.Parameters.Add("@CustomerID",
SqlDbType.Char, 5, "CustomerID");
adapter.InsertCommand.Parameters.Add("@CompanyName",
SqlDbType.VarChar, 40, "CompanyName");
adapter.UpdateCommand.Parameters.Add("@CustomerID",
SqlDbType.Char, 5, "CustomerID");
adapter.UpdateCommand.Parameters.Add("@CompanyName",
SqlDbType.VarChar, 40, "CompanyName");
adapter.UpdateCommand.Parameters.Add("@oldCustomerID",
SqlDbType.Char, 5, "CustomerID").SourceVersion = DataRowVersion.Original;
adapter.DeleteCommand.Parameters.Add("@CustomerID",
SqlDbType.Char, 5, "CustomerID").SourceVersion = DataRowVersion.Original;
return adapter;
}
The above function returns adapter of SqlDataAdapter type. Could anyone suggest on how to use it for InsertCommand, UpdateCommand and DeleteCommand in some other place.
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praveen.code999 wrote: how to use it for InsertCommand, UpdateCommand and DeleteCommand in some other place.
Do you want an option to specify the command which has to be created instead of creating all three?
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Hi All,
I am facing very strange problem. I have a Windows form and there are two buttons on it. Each has its click event as shown below:
private void button2_Click(object sender, EventArgs e)
{
MessageBox.Show("Button 2 CLICKED");
}
private void button1_Click(object sender, EventArgs e)
{
button2.Enabled = false;
long = 0;
while (i < 999999999)
{
i++;
}
button2.Enabled = true;
}
on the click of button1, i am disabling button2 and then do some processing (loop) and then enable the button2 again.
Problem is that when i click button1, button2 gets disabled and now i click on disabled button button2, wait till it become enable, at the moment it become enable, its click event gets fired and Message "Buuton 2 Clicked" displayed.
How does C# allow events on disabled buttons?
Please let me know, am i doing something wrong?
Naveen
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Couldn't find much info on this, except that clicks are queued, so when the button becomes enabled, it will fire as many times as it was clicked when disabled. Lame.
One way around it would be to create a 3rd dummy button that's exactly the same as the 2nd button. Then, instead of disabling the second button, hide it and show the 3rd button (disabled). When you're done processing, hide the 3rd button and show the 2nd button again. That way all the clicks will be on the 3rd button, which you can just discard or not even write a handler for.
Did that make sense?
- S
50 cups of coffee and you know it's on!
A post a day, keeps the white coats away!
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Thanks for reply,
But i think this would not work for me as i have to enable/disable so many buttons. I told only 2 buttons just to describe problem.
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When button1 is clicked, you are disabling button2 and starting a long running loop. This loop is running on the main thread where your UI elements are hosted. So it blocks all the messages passed to the window until your loop finishes. The click message is delivering to the window only after loop is finished and button is enabled. It processes the event and you get message. This is how it works.
As a workaround for this, you can run the long running loop on a separate thread. Here is a sample
button2.Enabled = false;
new System.Threading.Thread(delegate(object obj)
{
long i = 0;
while (i < 999999999){
i++;
}
this.Invoke((MethodInvoker)delegate { button2.Enabled = true; });
}).Start();
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Hello,
Please do you know of any C# wrapper for the path functions in shlwapi.dll out there?
I will have to write one, but there is one ready for use, I will not mind.
Best regards,
Paul.
Jesus Christ is LOVE! Please tell somebody.
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I got this[^] from pinvoke.net. is that the one you are looking for?
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Thank you very much, not complete but a good start.
Best regards,
Paul.
Jesus Christ is LOVE! Please tell somebody.
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when i am using NativeMethods, then i am seeing fallowing error : NativeMethods is inaccesible due to its protection lavel.
Am i missing any assambly reference?.
amit
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Where did you find the NativeMethods?
Best regards,
Paul.
Jesus Christ is LOVE! Please tell somebody.
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if you've trying to use NativeMethods from BLC then you're getting the error correctly for all of those are marked as "internal". Hence you can't access them directly.
You can always cheat and use Reflection or simply cut n'paste the code from the Reflector....
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Hi,
I am getting the error System.StackOverFlowException while reading the data from Comm port what is the reason can anybody tell
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Try checking your call stack in the debugger. Are you calling a recursive function anywhere? Stack overflow often occurs when you fail to hit the base case of a recursive function.
Dybs
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Hi I am getting this error when I am taking the data from the Serial port for emmbedded application on one system it is working fine but on other it gives error while recieving data from the comm port when the data recieved function is called the error is System.StackOverflow
Thanks,
kanwal
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The following code is supposed to be comparing two datasets and then load the rows that are not duplicates into a third datatable.Instead it repeats the rows that are already in the database(making more duplicates).Could someone tell me what i am doing wrong.
foreach (DataRow parentrow in dsImport.Tables[2].Rows)
{
DataRow[] childrows = parentrow.GetChildRows(r);
if (childrows == null || childrows.Length == 0)
dtImport.LoadDataRow(parentrow.ItemArray, true);
}
foreach (DataRow databaseRow in dsImport.Tables["StudentModule"].Rows)
{
foreach (DataRow spreadRow in dsImport.Tables["Sheet1$"].Rows)
{
if (spreadRow != databaseRow)
{
dtImport.BeginLoadData();
}
}
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
return dtImport
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first off, PLEASE use pre tags for code blocks...
second, why not create primary or unique keys on your datatables? that should help with the duplicates
Harvey Saayman - South Africa
Junior Developer
.Net, C#, SQL
you.suck = (you.Passion != Programming & you.Occupation == jobTitles.Programmer)
1000100 1101111 1100101 1110011 100000 1110100 1101000 1101001 1110011 100000 1101101 1100101 1100001 1101110 100000 1101001 1101101 100000 1100001 100000 1100111 1100101 1100101 1101011 111111
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Hi,
I'm trying to build a dll that makes automated changes to powerpoint presentations. I want to go through each slide and change all instances of an automatically generated date/time to one that I will provide. I'm having trouble finding in in the object model, however. I've gotten all the way to the slide.shape.textframe how can I check to see if what is in the frame is an automatically generated date/time?
I was thinking maybe text fields store a collection of objects taht aren't necessarily text and I could test against a dateAndTime object or something, but it looks like this is not the case.
Any Suggestions?
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