Reading csv file and uploading the data

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Hi All,

Name,Items,Price,Total
Alice,5000,14.15,"70,750.00 "
Bunny,14,15.50,217.00
Carrie,100,14.80,"1,480.00"

The above is a csv file which i need to upload the data into database.
But the issue is i want to restrict or show a message to the user if the data inside the field contains comma with it(i.e., the total value in the first row is 70,750.00)So if i find any value of such kind i should restrict the file from uploading .How can i fix this issue.

Thanks

Posted 14-Aug-12 5:51am

qwerty 2

Updated 14-Aug-12 5:53am

v2

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[no name] 14-Aug-12 11:56am

What "issue" is there to fix? If field.Contains(",") then show a message or do your restriction....

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**Zoltán Zörgő** · Answer 1 · 2012-08-14T06:14:00

Solution 1

You could restrict uploading, you better let it upload, validate against your rules, and give feedback. Actually I don't understand what is wrong with the thousand separator, but this is your code. If this is the only rule, you can simply parse it as text, and look for "\d+,.*?" regular expression matches.

Posted 14-Aug-12 6:14am

Zoltán Zörgő

Comments

Аslam Iqbal 14-Aug-12 14:33pm

Good reply. 5:)

Clifford Nelson · Answer 2 · 2012-08-14T09:00:00

This is not perfect. Might find a better regular expression, but it should work for you:

C#

string re2 = "(?<=^|,)(\"(?:[^\"]|\"\")*\"|[^,]*)";
var regex = new System.Text.RegularExpressions.Regex(re2);
var str = "Alice,5000,14.15,\"70,750.00 \", \"I have a \"\" in this\"";
var results = regex.Matches(str);
var arrayResults = results.Cast<Match>().Select(m => m.Groups[0].Value).ToArray();
foreach (var match in results)
{
    if (match.ToString().IndexOf(",") > -1)
        MessageBox.Show(string.Format("Found string '{0}' with comma.", match.ToString()));
}

Kenneth Haugland · Answer 3 · 2012-08-14T09:05:00

If you are going to construck regular expressions you should try the software in this article:
Expresso - A Tool for Building and Testing Regular Expressions[^]

Menaing it would be difficult or not impossible to understand other peoples RegEX, as you should always construckt them yourself, unless you understand every bit in them.

Reading csv file and uploading the data

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