How to know user entered numeric or character in text box

Question

1.00/5 (1 vote)

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VB

Posted 21-Feb-13 17:50pm

AnnuBhai

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Sergey Alexandrovich Kryukov 21-Feb-13 23:53pm

First of all, you need to tag your UI library or application type. In other words, what is TextBox? Exact full type name, please.
And ask the question properly. What is "to know"?
—SA

AnnuBhai 21-Feb-13 23:55pm

Normal Textbox

AnnuBhai 21-Feb-13 23:55pm

SearchingText Box for searching perpose

AnnuBhai 21-Feb-13 23:56pm

Actually i am using text box for searching EmpCode as well as Emp Name

3 solutions

Solution 1

See this

XML

<script>

document.write(isNaN(123)+ "<br>");
document.write(isNaN(-1.23)+ "<br>");
document.write(isNaN(5-2)+ "<br>");
document.write(isNaN(0)+ "<br>");
document.write(isNaN("Hello")+ "<br>");
document.write(isNaN("2005/12/12")+ "<br>");

</script>

Posted 21-Feb-13 17:52pm

k@ran

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MalwareTrojan · Accepted Answer · 2013-02-21T18:05:00

Solution 2

Use IsNumeric function for eg:-

If IsNumeric(txtNAme.Text)=True then
Statement 1
Else
Statement 2
End If

Posted 21-Feb-13 18:05pm

MalwareTrojan

PIEBALDconsult · Accepted Answer · 2013-02-21T18:07:00

Solution 3

Check the Length of the Text; if greater than zero, then the user entered something and what else could it be?

Posted 21-Feb-13 18:07pm

PIEBALDconsult