Javascript allow only text value

Question

Javascript:

  function textonly(e) {
        var code;
        if (!e) var e = window.event;
        if (e.keyCode) code = e.keyCode;
        else if (e.which) code = e.which;
        var character = String.fromCharCode(code);
        var AllowRegex = /^[\ba-zA-Z\s-]$/;
        if (AllowRegex.test(character)) return true;
        return false;
    }

Html:

<asp:TextBox ID="textbox1" onkeypress="return textonly(event);" runat="server"></asp:TextBox>

I am trying to allow only text.If i use textonly event in above js function,

i can not press key below:

ğ,ü,ş,i,ö,ç and Space

how can i also include above values on key press ?

Yannick Meeus · Accepted Answer · 2015-03-06 14:56:07Z

1

You can just extend your regex like this:

^[\ba-zA-Z\sğüşöç\s]$

This will allow one character of the below:

\b a backspace character (ASCII 8)
a-z a single character in the range between a and z (case sensitive)
A-Z a single character in the range between A and Z (case sensitive)
\s match any white space character [\r\n\t\f ]
ğüşöç a single character in the list ğüşöç literally (case sensitive)
\s match any white space character [\r\n\t\f ]

answered Mar 6, 2015 at 14:56

Yannick Meeus

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1 Comment

Soner Over a year ago

thanks it works except " ı " how can i also include " ı " ?

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