Text box should accept integer an float values

http://www.dotnetfunda.com/forums/thread9248-how-to-allow-only-numeric-values-into-a-textbox.aspx

Regards,
Murugavel S
murugavel.sadagopan@gmail.com
http://murugavelmsc.blogspot.in/

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Text box should accept both integer and float values

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write this code in textbox_PreviewTextInput event


private void txtBox1_PreviewTextInput(object sender, System.Windows.Input.TextCompositionEventArgs e)
{
System.Text.RegularExpressions.Regex regex = new System.Text.RegularExpressions.Regex("^[.][0-9]+$|^[0-9]*[.]{0,1}[0-9]*$");
e.Handled = !regex.IsMatch((sender as TextBox).Text.Insert((sender as TextBox).SelectionStart, e.Text));
}

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function numeric(keyCode) {

            return ((keyCode >= 48 && keyCode <= 57)||(keyCode >=96 && keyCode <=104) || keyCode == 8 || keyCode == 9 || keyCode ==110)

        }

and textbox

<asp:TextBox ID="txt_name" runat="server" onkeydown="return alphabates(event.keyCode);"

                        onpaste="return false;"></asp:TextBox> 

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