In this post we will discuss about how to validate user input to accept only 10 character using Regulat expressions in Javascript?
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The below Html code explains the validation for name which accepts only lower case and upper case alphabets using Regular Expressions.
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
<script language="ecmascript" type="text/ecmascript">
function validateEmpName() {
var name = document.getElementById(" <%=empName.ClientID%>").value;
// Reg Exp to accept only A-Z and a-z
var p1 = /^([A-z])+$/;
var x1 = name.match(p1);
if (x1 == null) {
document.getElementById("empName").style.color = "red";
alert("Employee name is not in the corrrect format");
document.getElementById("<%=empName.ClientID%>").focus;
return false;
}
return true;
}
</script>
</head><body>
<form id="form1" runat="server">
<div>
Enter Employee Name:
<asp:TextBox ID="empName" runat="server" Width="132px"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Check Name"
OnClientClick = "return validateEmpName();" />
</div>
</form>
</body>
</html>
Also check out:
- Transaction count after EXECUTE indicates a mismatching number of BEGIN and COMMIT statements
- Common Language Runtime in C#.Net
- How to Count number of times website visited and online users in asp.net using C#.net?
The below Html code explains the validation for name which accepts only lower case and upper case alphabets using Regular Expressions.
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
<script language="ecmascript" type="text/ecmascript">
function validateEmpName() {
var name = document.getElementById(" <%=empName.ClientID%>").value;
// Reg Exp to accept only A-Z and a-z
var p1 = /^([A-z])+$/;
var x1 = name.match(p1);
if (x1 == null) {
document.getElementById("empName").style.color = "red";
alert("Employee name is not in the corrrect format");
document.getElementById("<%=empName.ClientID%>").focus;
return false;
}
return true;
}
</script>
</head><body>
<form id="form1" runat="server">
<div>
Enter Employee Name:
<asp:TextBox ID="empName" runat="server" Width="132px"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Check Name"
OnClientClick = "return validateEmpName();" />
</div>
</form>
</body>
</html>
