how to check if a string contains numbers and text

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I am reading a file line by line and want to check if the line contains numbers.
for example:if line is startDrag(0,0,500,660) or startDrag(false,0,0,500,660) it should return true else it should return false.
The numbers can be vary.

How to check for such string?

Posted 28-Oct-12 21:17pm

DhanashreeRamya

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2 solutions

Solution 2

let me re-phrase what I understood: If the line you read contains any integer (0 through 9), consider True.

Probably you can use regex as below

C#

public bool checkContainsIntegar(string myString)
{
  Regex myCheck = new Regex("^[0-9]*$");
  if (myCheck.IsMatch(myString))
    return true;
  else 
    return false;
}

Hope that helps
-Milind

Posted 28-Oct-12 21:30pm

MT_

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Sushil Mate · Accepted Answer · 2012-10-28T21:24:00

Solution 1

Only numbers:

C#

Regex.IsMatch("Your string", @"^[0-9]+$");

Only letters:

C#

Regex.IsMatch(input, @"^[a-zA-Z]+$");

Only letters and numbers:

C#

Regex.IsMatch(input, @"^[a-zA-Z0-9]+$");

Posted 28-Oct-12 21:24pm

Sushil Mate

Updated 28-Oct-12 21:29pm

v2