I want enter numbers into textbox and textbox would convert automatically these number into currency.(12,345,654)

I can use FilteredTextBoxExtender

<ajaxToolkit:FilteredTextBoxExtender ID="ftbe" runat="server"
TargetControlID="TextBox3"         
FilterType="Custom, Numbers"
ValidChars="," />

But i want to automatically add mas when user enters number.

I want enter numbers into textbox and textbox would convert automatically these number into currency.(12,345,654)

I can use FilteredTextBoxExtender

<ajaxToolkit:FilteredTextBoxExtender ID="ftbe" runat="server"
TargetControlID="TextBox3"         
FilterType="Custom, Numbers"
ValidChars="," />

But i want to automatically add mas when user enters number.

• javascript
• asp

• 1 jsfiddle/CBDea/1 check this link by Scott Mitchell – MMK Commented Apr 25, 2013 at 8:28
• Thanks, but i want add mas when user enter number. – Niloo Commented Apr 25, 2013 at 8:45

3 Answers 3

I use javascript code.

  function Comma(Num) { //function to add mas to textboxes
        Num += '';
        Num = Num.replace(',', ''); Num = Num.replace(',', ''); Num = Num.replace(',', '');
        Num = Num.replace(',', ''); Num = Num.replace(',', ''); Num = Num.replace(',', '');
        x = Num.split('.');
        x1 = x[0];
        x2 = x.length > 1 ? '.' + x[1] : '';
        var rgx = /(\d+)(\d{3})/;
        while (rgx.test(x1))
            x1 = x1.replace(rgx, '$1' + ',' + '$2');
        return x1 + x2;
    }


<asp:TextBox ID="aPriceTextBox" runat="server" Width="100px"    onkeyup = "javascript:this.value=Comma(this.value);" />

Using a masked-edit control would be a good idea here.

Check this post on StackOverflow for more information. It suggests ways to implement a textbox for currency field.

You may also refer to this ponent on codeplex.

You can use ajax maskedit extander
here is some example:

<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
        <asp:TextBox ID="TextBox1" runat="server" />
        <cc1:MaskedEditExtender runat ="server"
            TargetControlID="TextBox1"
            Mask="999,999,999,999"
            MessageValidatorTip="true"
            MaskType="Number"
            InputDirection="RightToLeft"
            AcceptNegative="Left"
            DisplayMoney="None"
            ErrorTooltipEnabled="True" />