How to split int and other characters from a string

Question

0.00/5 (No votes)

See more:

SQL-Server-2008R2

I have table(tbl_product_price) with three columns (product_id,product_price,quantity)

The table value will be like this,

SQL

product_id     product_price     quantity
   1             500              1Kg
   2             250              500gm
   3             100              12pcs
   4             150              12nos

My sql query is:

SQL

select quantity from tbl_product_price where product_id=2

i want output quantity as integer,i took it up with a dataset in C#,
now i want to split quantity column into integer and character.

For ex, if i select product_id=2, 500gm will split into,

C#

int quantity1=500
string str1=gm

if i select product_id=3, 12pcs will split into,

C#

int quantity1=12
string str1=pcs

How to do like this in C#?
I tried google, but not yet got perfect solution.

Thanks in advance,
Rajeshwaran T

Posted 28-Oct-15 3:31am

Rajesh waran

Add a Solution

Comments

Richard Deeming 28-Oct-15 10:55am

Seems like a bad design to me. It would be better to have two columns: an integer for the quantity, and a quantity unit. The quantity unit should be a lookup to a separate table with a list of valid units, possibly using a surrogate key to save space on the pricing table.

Rajesh waran 28-Oct-15 10:58am

Yes I too have same opinion. But there are thousands of record so I can't change the design now.

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

phil.o · Accepted Answer · 2015-10-28T03:40:00

Solution 1

A regular expression seems to be what you need here:

C#

using System.Text.RegularExpressions;

Regex regex = new Regex(@"^(?<Quantity>[0-9]+)(?<Unit>[^0-9]+)$", RegexOptions.Compiled | RegexOptions.CultureInvariant);

string input = "12pcs";
Match m = regex.Match(input);
int quantity = int.Parse(m.Groups["Quantity"].Value);
string unit = m.Groups["Unit"].Value;

// quantity = 12
// unit = "pcs"

Hope this helps.

Posted 28-Oct-15 3:40am

phil.o

Updated 28-Oct-15 3:41am

v2

Comments

Sergey Alexandrovich Kryukov 28-Oct-15 10:02am

5ed.
—SA

phil.o 28-Oct-15 10:22am

Thanks Sergey :)

Rajesh waran 28-Oct-15 10:40am

Thank u I'll try this and come back to u.

Maciej Los · Accepted Answer · 2015-10-28T09:42:00

Another way is to use Linq[^] + Regex.Replace method[^].

Imagine, you did load the data into DataTable object, so you're able to split quantity data into quantity(string) and unit(int):

C#

DataTable dt  = new DataTable();
dt.Columns.Add(new DataColumn("id", typeof(int)));
dt.Columns.Add(new DataColumn("product_price", typeof(int)));
dt.Columns.Add(new DataColumn("quantity", typeof(string)));
dt.Rows.Add(new Object[]{1, 500, "1Kg"});
dt.Rows.Add(new Object[]{2, 250, "500gm"});
dt.Rows.Add(new Object[]{3, 100, "12pcs"});
dt.Rows.Add(new Object[]{4, 150, "12nos"});

string patternq = @"\d+";
string patternu = @"\B[A-Z]+";

var result = dt.AsEnumerable()
    .Select(x=>new
    {
        id = x.Field<int>("id"),
        price = x.Field<int>("product_price"),
        quantity = Convert.ToInt32(Regex.Replace(x.Field<string>("quantity"), patternu, string.Empty ,System.Text.RegularExpressions.RegexOptions.IgnoreCase)),
        unit = Regex.Replace(x.Field<string>("quantity"), patternq, string.Empty, System.Text.RegularExpressions.RegexOptions.None)
    }).ToList();

foreach(var obj in result)
{
    Console.WriteLine("{0}\t{1}\t{2}\t{3}", obj.id, obj.price, obj.quantity, obj.unit);
}