It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 11 years ago.
I want to copy a txt file from one folder to another. While coping i need to check whether the file exists or not, if yess then replace the file.
You can use System.IO.File.Copy(source, destination, True) to copy a file. The third parameter says to overwrite any existing file).
See this MSDN page for details.
Related
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 10 years ago.
I use wget to download the HMTL, but what I get is different from what I see in the browser. Particularly, I am interested in the latitude of the location
wget "http://m.yp.com/30332/pep-boys?page=0"
grep 'data-lat=' pep-boys\?page\=0
... NO RESULTS :(((
The only possible reason is that your headers aren't the same than those your brother so the webserver doesn't behave the same way.
Give a look at this : http://www.askapache.com/linux/wget-header-trick.html
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 11 years ago.
I need to be able to read information about project lines in the Qt project which is building by MinGW.
How can I do it? Where I should include - /MAPINFO:LINES , to get output file with information about lines numbers?
Try to use __LINE__.
Example:
qDebug()<<__LINE__<<"hi";
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 11 years ago.
all. I downloaded the Qt source, and then proceeded to start building it on a Mac. At the moment, it's been four hours. Is it supposed to take this long? If not, what am I doing wrong? It's just building, building, building, building.... And using a lot of resources. It's confusing.
Yes, it is meant to take this long.
You should consider the use of parallel make.
make -j4 uses 4 CPUs.
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 12 years ago.
I create an one webpage in asp.net all the time i am facing the following pbm how to rectify it..
if(ds.Tables[0].Rows.Count > 0)
Maybe you need to check that ds.Tables[0] exists first
If you are constantly checking on your pages to see if that dataset has a table with rows, I would think you would want to make some helper class to check that your dataset is not null, and that whatever tables have actual rows. Also you might want to think about moving these to typed datasets.
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 12 years ago.
I want to store images in websql(sqllite).so please provide the procedure to store images in websql.
Sqlite has a data type called BLOB which is common in many DBMSes.
You can serialize the image as byte[] ans save it to column just like other data types.
Here is the same questoin How do i store and retrieve a blob from sqlite asked and answered.