<%@ Page Language="C#" AutoEventWireup="true" CodeFile="EnabledisableSaveButton.aspx.cs" Inherits="EnabledisableSaveButton" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<script language="javascript" type="text/javascript">
//function to enable button if two textboxes contains text
function SetButtonStatus(sender, target) {
var first = document.getElementById('<%=txtfirst.ClientID %>');
var second = document.getElementById('<%=txtText.ClientID %>');
//Condition to check whether user enters text in two textboxes or not
if ((sender.value.length >= 1 && first.value.length >= 1) && (sender.value.length >= 1 && second.value.length >= 1))
document.getElementById(target).disabled = false;
else
document.getElementById(target).disabled = true;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="txtfirst" runat="server" onkeyup="SetButtonStatus(this,'btnButton')"></asp:TextBox>
<asp:TextBox ID="txtText" runat="server" onkeyup="SetButtonStatus(this,'btnButton')"></asp:TextBox>
<asp:Button ID="btnButton" runat="server" Text="Button" Enabled="false" />
</div>
</form>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<script language="javascript" type="text/javascript">
//function to enable button if two textboxes contains text
function SetButtonStatus(sender, target) {
var first = document.getElementById('<%=txtfirst.ClientID %>');
var second = document.getElementById('<%=txtText.ClientID %>');
//Condition to check whether user enters text in two textboxes or not
if ((sender.value.length >= 1 && first.value.length >= 1) && (sender.value.length >= 1 && second.value.length >= 1))
document.getElementById(target).disabled = false;
else
document.getElementById(target).disabled = true;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="txtfirst" runat="server" onkeyup="SetButtonStatus(this,'btnButton')"></asp:TextBox>
<asp:TextBox ID="txtText" runat="server" onkeyup="SetButtonStatus(this,'btnButton')"></asp:TextBox>
<asp:Button ID="btnButton" runat="server" Text="Button" Enabled="false" />
</div>
</form>
</body>
</html>
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