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Dear All
While Googling I have noticed the class, it has few static functions and the parameter of this function is class itself.
For more clarification
<br />
public class Myclass<br />
{<br />
<br />
private Membervariables;<br />
<br />
public property;<br />
<br />
Public static retuntype FunctionName(Myclass m )<br />
<br />
{<br />
<br />
m.Membervariables<br />
}<br />
<br />
}<br />
Why it is done and what is the benefit of doing this
Thanks
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looks like sample code with placeholder
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I don't see any good reason for a static method to take a class instance, instead of using an instance method, unless an operator is defined that way.
Christian Graus
Please read this if you don't understand the answer I've given you
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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Hi all,
Please any one suggest me how to solve this issue
System.IO.IOException: The process cannot access the file 'D:\images\2113797.jpg' because it is being used by another process.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileInfo.Delete()
It seems that the file is locked, but it's strict I have to delete the file even though it's being used by another process.
Thanks in advance
Know is Drop, Unknown is Ocean
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Exelioindia wrote: It seems that the file is locked, but it's strict I have to delete the file even though it's being used by another process.
Then you are totally screwed.
Instead of asking how to do the impossible, perhaps you need to work out what's locking the file, and fix it ? Opening the file as a Bitmap or Image in your code, can leave it locked until you call Dispose on that Bitmap or Image. If you need to delete the file and keep the image in memory, make a copy and Dispose of the original.
Christian Graus
Please read this if you don't understand the answer I've given you
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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You can use Process Explorer from SysInternals[^]) to figure out what process is locking the file. Open it up, Click Find then "Find handle or Dll..." Enter the filename, and click search.
This will help you identify which program is holding the file open.
If it's your app holding the file open, like Christian says, you need to make sure you close any Bitmap objects, or streams you have as they hold locks on the file.
If it's not your app holding the file open, then there's not much you can do. Look at why the file is held open. Consider telling the user that you were unable to delete the file because another application has it open, and give the user a chance to close the application and then retry the delete.
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Hi,
Thanks for your replay. This is a web application. Also i am not using any Bitmap objects, or streams to process the image. I am just deleting a image which was created by the user.
Also this error occurs for me in server, also it's not occurring frequently.
Know is Drop, Unknown is Ocean
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Well, like I said, use process explorer to find out what process is locking the file. You can run process explorer on the server.
(If the user just created the image through your application, It's likely your not properly closing the file after creating it)
Simon
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OK, then your app can't work at all. Because, if the file is created by the user, then it must be on the local file system, which your web app cannot access, it only works because you're testing it on the machine that is also the server. It also means you're in the wrong forum, we have an ASP.NET forum.
If you mean the user uploaded the image to the server, then it's your code that creates the file, and is at fault for keeping it locked.
Christian Graus
Please read this if you don't understand the answer I've given you
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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Understand what you are doing before you try this. This code forcefully closes the handle to the file. If another app has held the file open, it has probably done so for a reason, forcefully closing it has a strong chance of causing problems/errors in the app. If it's your app that holds the lock on the file, forcefully closing the handle will be likely leave you with invalid/null objects. You should just close the file properly.
[EDIT]
I haven't tried it, and I'm no ASP.NET expert, but I suspect you'll have problems getting this code to run anyway, because you won't have the permissions to use P/Invoke in the server environment.
[/EDIT]
Simon
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I understand it and I'm not encouraging him to do so. I just gave him an example. He decides whether he wants to use it or not.
Giorgi Dalakishvili
#region signature
my articles
#endregion
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Sorry, I didn't mean for you to understand it. I've read a few of your articles, I've no doubt at all that you know what your doing  I just meant for Exelioindia to be careful with using that. Probably should have made that clearer.
Simon
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It's ok
Simon Stevens wrote: I've read a few of your articles,
Hope you liked them
Giorgi Dalakishvili
#region signature
my articles
#endregion
modified on Tuesday, April 8, 2008 5:39 AM
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Hello
I face a problem with datagridview when want to retrive the particular row index.
In my application I select more then one row by presssing control key. After that when I want to retrive the row index from selected rows then it return wrong row index.
So plz help me regarding this.
Debasmita
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Could please be more descriptive.
Anyways this works fine for me:
int i = this.dataGridView1.SelectedRows[1].Index
Until you realize this message has nothing to say, its too late to stop reading
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checking how many rows are selected in the grid.
First column is check box column.
this code will help to learn something
int count =0;
foreach (DataGridViewRow row in dgrdviewBranch.Rows)
{
bool selectrow = Convert.ToBoolean(row.Cells[0].Value);
if (selectrow == true)
{
count += 1;
}
}
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The command line prompt for running winzip. The below command zips "1.txt" file into "zippy.zip"
C:\Program Files\WinZip>winzip32.exe -min -a D:zippy.zip D:\\1.txt
I want to do this programatically using C# using Process.Start(). I have trouble specifing the parameters for winzip exe. If i give only the exe name as below winzip application opens
System.Diagnostics.Process.Start("C:\\Program Files\\WinZip\\winzip32.exe");
When i try giving the parameters(file name etc) as below it gives an error at run time "The system cannot find the file specified"
System.Diagnostics.Process.Start("C:\\Program Files\\WinZip\\winzip32.exe -min -a D:zippy.zip D:\\1.txt");
I'm not sure if there is any problem with double quotes "". How can i specifiy the paramters? Please help
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You specify the parameters as an argument, and I suspect you need to put the full path in quotes because it has a space in it. So, you're writing a program that will only ever run on your personal PC, no-one else will ever use it ?
Christian Graus
Please read this if you don't understand the answer I've given you
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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I have specified the path in quotes but still not working. Can you please provide code snippet?
My requirement is that the files should be zipped using Winzip only so that user can unzip it. If i use System.IO.Compression.GZipStream then i cannot unzip the files. Again i need to have a program for decompression.
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I found the solution. I was using Process.Start with 1 paramters instead of using 2 parameters (2nd paramenter for argument). Thanks for all your help
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OK, I thought that might be it, too. Either way, I still think you're doing it the wrong way
Christian Graus
Please read this if you don't understand the answer I've given you
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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I'd take a look at doing this in process if I were you. There are several free third party assemblies which will help you here. ICSharpCode.ZipLib does the job just dandy.
Regards,
Rob Philpott.
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i am using C#.net 1.1 while using clipboard m geeting this exception
System.Threading.ThreadStateException: Current thread must be set to single thread apartment (STA) mode before OLE calls can be made. Ensure that your Main function has STAThreadAttribute marked on it.
at System.Windows.Forms.Clipboard.GetDataObject()
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// [STAThreadAttribute]
[STAThread]
public static void Main()
put that attribute in your entry point.
Christian Graus
Please read this if you don't understand the answer I've given you
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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