Allow only Numeric and minus symbol in textbox using ASP.Net

Question

Hi All, How to allow only Numeric values and minus symbol in textbox using ASP.Net?

Siddhartha Sharma · Answer

use below regex : only numeric and minus symbol /^[0-9 -]+$/

Puneet Kankar · Answer

Hi sourav, Go through this links running fine. http://jsfiddle.net/7XLqQ/3/

Sourav Kumar Das · Answer

Hi Puneet, I have inserted those code in my Asp.Net but it didn't get worked out..

Sourav Kumar Das · Answer

Hi Puneet Kankar, I have tried your code but i didn't get the correct result of it...

Jignesh Kumar · Answer

Hi Sourav, Please find below link, https://forums.asp.net/t/2053734.aspx?Enter+only+numbers+and+minus+sign+in+textbox You can verify js online here https://jsbin.com/calahideba/edit?html,output

Puneet Kankar · Answer

Please check below links for better understanding. Asp.net code "TextBox1" runat= "server" > "RegularExpressionValidator1" ControlToValidate= "TextBox1" runat= "server" ErrorMessage= "Only Numbers allowed" ValidationExpression= "\d+" > or javascript code "txtinput" type= "text" id= "myInput" /> var input = document.getElementById( "myInput" ); input.onkeypress = function (e) { e = e || window.event; var charCode = ( typeof e.which == "number" ) ? e.which : e.keyCode; // Allow non-printable keys if (!charCode || charCode == 8 /* Backspace */ ) { return ; } var typedChar = String.fromCharCode(charCode); // Allow numeric characters if (/\d/.test(typedChar)) { return ; } // Allow the minus sign (-) if the user enters it first if (typedChar == "-" && this .value == "" ) { return ; } // In all other cases, suppress the event return false ; }; http://jsfiddle.net/7XLqQ/3/ https://stackoverflow.com/questions/9732455/how-to-allow-only-integers-in-a-textbox

Ashwin Chauhan · Answer

https://forums.asp.net/t/2053734.aspx?Enter+only+numbers+and+minus+sign+in+textbox http://jsfiddle.net/7XLqQ/3/

Allow only Numeric and minus symbol in textbox using ASP.Net

Answers (7)