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This would do : <br />
<br />
If IsNumeric(Replace(YourStri<wbr />ng, &quot;_&quot;, &quot;&quot;)) Then<br />
&nbsp; &nbsp; Response.write (&quot;String is Numeric&quot;)<br />
Else<br />
&nbsp; &nbsp; Response.write (&quot;String is NOT Numeric&quot;)<br />
End If
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This would do :

If IsNumeric(Replace(YourString, "_", "")) Then
    Response.write ("String is Numeric")
Else
    Response.write ("String is NOT Numeric")
End If

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The problem with IsNumeric is that the following:<br />
12E34<br />
12D34<br />
-1234<br />
&nbsp;is also returned as true. &nbsp;You may want to take a look at Regular Expressions. &nbsp;Let me know if you need an example.<br />
<br />
Anthony
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The problem with IsNumeric is that the following:
12E34
12D34
-1234
 is also returned as true.  You may want to take a look at Regular Expressions.  Let me know if you need an example.

Anthony

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<a href="http://www.planet-source-code.com/vb/scripts/ShowCode.asp?lngWId=4&txtCodeId=6471" rel="ugc">http://www.planet-source-code.com/vb/scripts/ShowCode.asp?lngWId=4&txtCodeId=6471</a>
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http://www.planet-source-code.com/vb/scripts/ShowCode.asp?lngWId=4&txtCodeId=6471 [http://www.planet-source-code.com/vb/scripts/ShowCode.asp?lngWId=4&txtCodeId=6471]

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<div class="content wysiwyg-content">
is there an easy way to check and see if a string is alphanumeric, no special characters, no spaces. &nbsp;For my application the string would also allow underscores. &nbsp;Thanks
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is there an easy way to check and see if a string is alphanumeric, no special characters, no spaces.  For my application the string would also allow underscores.  Thanks

Check for alpha numeric string

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