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to validate for numbers and alphabets in c# asp.net2.0 in codebehind file,the textbox should accept all numbers,alphabets,special characters...but textbox should not contain only numbers if it contains only numbers error message in alert box should be thrown..please help me how to code in c#.net in code behind file
Posted 28-Dec-12 19:47pm
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Solution 2

Hi,
 
Try this:
bool includesNotOnlyNumeric = Regex.IsMatch(textBox.Text, @"\D");
if (includesNotOnlyNumeric)
{
    // don't show an alert box
}
else
{
    // show an alert box
}
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v2
Comments
__TR__ at 29-Dec-12 5:16am
   
5ed!
ProgramFOX at 29-Dec-12 5:33am
   
Thank you!
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Solution 1

You could use a Regex:
            string str = myTextBox.Text;
            Regex includesNonNumeric = new Regex(@"[^\d]");
            if (includesNonNumeric.IsMatch(str))
                {
                // OK
                }
            else
                {
                // Failed
                }
  Permalink  
Comments
nityasri at 29-Dec-12 3:53am
   
what namespace we have to use here sir?
OriginalGriff at 29-Dec-12 4:01am
   
Try adding:
using System.Text.RegularExpressions;
nityasri at 29-Dec-12 4:02am
   
thank u griff
OriginalGriff at 29-Dec-12 4:45am
   
You're welcome!
nityasri at 29-Dec-12 4:05am
   
thanks a lot yaar...problem solved:)
__TR__ at 29-Dec-12 5:16am
   
5ed!

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0 Kornfeld Eliyahu Peter 275
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