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How to know user entered numeric or character in text box
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"?
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

See this


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>");

Use IsNumeric function for eg:-

If IsNumeric(txtNAme.Text)=True then
Statement 1
Statement 2
End If
Check the Length of the Text; if greater than zero, then the user entered something and what else could it be?

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