generation of sequence number

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hi,
im using windows application in c#. i want to generate a sequence no in a text box. i used the code
IEnumerable<int32> var = Enumerable.Range(1,10);
textBox1.Text = var.ToString();
when i run the form i got " System.Linq.Enumerable+<rangeiterator>d__b1" this text in that text box. can u give me a proper solution.

Posted 5-Sep-12 4:12am

vijkrnandini

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[no name] 5-Sep-12 10:18am

http://msdn.microsoft.com/en-us/library/system.linq.enumerable.range.aspx

3 solutions

Solution 2

Try:

C#

IEnumerable<int> var = Enumerable.Range(1, 10);
textBox1.Text = string.Join(",", var.ToArray());

Posted 5-Sep-12 4:24am

OriginalGriff

Comments

CodeHawkz 5-Sep-12 12:00pm

By far the most elegant solution :) string.Join is one method that's overlooked by many. My 5

Matt T Heffron 5-Sep-12 14:27pm

...but I'd avoid using var as a variable name since it has its own c# meaning.

OriginalGriff 5-Sep-12 14:48pm

So would I - I only used it to keep with his naming.

Solution 1

Add a namespace of System.Linq /using System.Collections; to this page.

Posted 5-Sep-12 4:19am

Kamalkant(kk)

Updated 5-Sep-12 4:21am

v2

Comments

vijkrnandini 5-Sep-12 10:21am

i have added that namespace even then im getting the same

Kamalkant(kk) 5-Sep-12 10:21am

using System.Collections;

vijkrnandini 5-Sep-12 10:23am

ya its already there

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Sunil Kumar Pandab · Accepted Answer · 2012-09-05T04:57:00

Solution 3

Try this :-

XML

IEnumerable<int> var = Enumerable.Range(1, 10);
            int[] Arr = var.ToArray();
            string Number="";
            for (int i = 0; i < Arr.Length; i++)
            {
                Number += Arr[i].ToString()+",";
            }
            textBox1.Text = Number;

Posted 5-Sep-12 4:57am

Sunil Kumar Pandab

Comments

CodeHawkz 5-Sep-12 12:02pm

Don't use string concatenation for obvious reasons. Use a StringBuilder instead :)