Designer Source Code :
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>Vallidations Page</title>
<script language="javascript" type="text/javascript">
function validate() {
var summary = "";
summary += isvaliduser();
summary += isvalidFirstname();
summary += isvalidLocation();
if (summary != "") {
alert(summary);
return false;
}
else {
return true;
}
}
function isvaliduser() {
var uid;
var temp = document.getElementById("<%=txtuser.ClientID %>");
uid = temp.value;
if (uid == "") {
return ("Please Enter UserName" + "\n");
}
else {
return "";
}
}
function isvalidFirstname() {
var uid;
var temp = document.getElementById("<%=txtfname.ClientID %>");
uid = temp.value;
if (uid == "") {
return ("Please enter firstname" + "\n");
}
else {
return "";
}
}
function isvalidLocation() {
var uid;
var temp = document.getElementById("<%=txtlocation.ClientID %>");
uid = temp.value;
if (uid == "") {
return ("Please enter Location" + "\n");
}
else {
return "";
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<table align="center">
<tr>
<td>
<asp:Label ID="lbluser" runat="server" Text="Username"></asp:Label>
</td>
<td>
<asp:TextBox ID="txtuser" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblfname" runat="server" Text="FirstName"></asp:Label>
</td>
<td>
<asp:TextBox ID="txtfname" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lbllocation" runat="server" Text="Location"></asp:Label>
</td>
<td>
<asp:TextBox ID="txtlocation" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>
</td>
<td>
<asp:Button ID="btnsubmit" runat="server" Text="Save"
OnClientClick ="javascript:validate()" />
</td>
</tr>
</table>
</form>
</body>
</html>
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