Here’s a very simple script which will add new item in DropDownList using jQuery.
Let us assume you have a DropDownList values as shown below.
<asp:DropDownList ID="DropDownList1" runat="server">
<asp:ListItem Value="0">SELECT</asp:ListItem>
<asp:ListItem Value="1">APPLE</asp:ListItem>
<asp:ListItem Value="2">BANANA</asp:ListItem>
<asp:ListItem Value="3">ORANGE</asp:ListItem>
<asp:ListItem Value="4">MANGO</asp:ListItem>
</asp:DropDownList>
Following jQuery code will add new item in DropDownList When user will enter text in textbox and click on button.
<script type="text/javascript">
$(function () {
$("#btnClick").click(function () {
var text = $("#<%=TextBox1.ClientID %>").val().toUpperCase();
if (text.length > 0)
$("#<%=DropDownList1.ClientID %>").append($("<option>").val(text).text(text));
});
});
</script>
We will use html button to add new item in DropDownList and textbox control to enter input.
<input id="btnClick" type="button" value=" Click " />
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
Here’s an example
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Add new item in DropDownList using jQuery</title>
<script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.6.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$("#btnClick").click(function () {
var text = $("#<%=TextBox1.ClientID %>").val().toUpperCase();
if (text.length > 0)
$("#<%=DropDownList1.ClientID %>").append($("<option>").val(text).text(text));
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
Input: <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<br />
<asp:DropDownList ID="DropDownList1" runat="server">
<asp:ListItem Value="0">SELECT</asp:ListItem>
<asp:ListItem Value="1">APPLE</asp:ListItem>
<asp:ListItem Value="2">BANANA</asp:ListItem>
<asp:ListItem Value="3">ORANGE</asp:ListItem>
<asp:ListItem Value="4">MANGO</asp:ListItem>
</asp:DropDownList>
<br />
<input id="btnClick" type="button" value=" Click " />
</div>
</form>
</body>
</html>
Output
Download
Add-new-Item-in-DropDownList.rar (719.00 bytes)
See live demo