Thursday, April 18, 2013

Get Selected Value on Dropdownlist selectedindexchanged event using JavaScript

==>> In this post  I explain how Get Selected Value on Dropdownlist selectedindexchanged event using  JavaScript this is help us for get value of dropdown without any page post back in asp .net

We use the onchange event  in the java script for get value of dropdown 
on Dropdownlist selectedindexchanged event in JavaScript 

In the java script we write code like :-

<script type="text/javascript">
function GetName() {
    var name = document.getElementById("ddlName");
    var strname = name.options[name.selectedIndex].text;
    document.getElementById('lName').innerHTML = strname;
    document.getElementById('lValue').innerHTML = name.options[name.selectedIndex].value;
}
    </script>


.ASPX  Page Code:-


<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Get Selected Value on Dropdownlist selectedindexchanged event using  JavaScript</title>

    <script type="text/javascript">
function GetName() {
    var name = document.getElementById("ddlName");
    var strname = name.options[name.selectedIndex].text;
    document.getElementById('lName').innerHTML = strname;
    document.getElementById('lValue').innerHTML = name.options[name.selectedIndex].value;
}
    </script>

</head>
<body>
    <form id="form1" runat="server">
    <table width="50%">
        <tr>
            <td align="right">
                Select Name:
            </td>
            <td>
                <asp:DropDownList ID="ddlName" runat="server" onchange="GetName()">
                    <asp:ListItem Text="Select" Value="0" />
                    <asp:ListItem Text="Subhash" Value="1" />
                    <asp:ListItem Text="Rakesh" Value="2" />
                    <asp:ListItem Text="Satendra" Value="3" />
                    <asp:ListItem Text="Raju" Value="4" />
                    <asp:ListItem Text="Sachin" Value="5" />
                </asp:DropDownList>
            </td>
        </tr>
        <tr>
            <td align="right" style="font-family: Century Gothic; font-size: 12pt; color: Black">
                Selected Name:-
            </td>
            <td>
                <b>
                    <label id="lName" style="font-family: Century Gothic; font-size: 12pt; color: Aqua" />
                </b>
            </td>
        </tr>
        <tr>
            <td align="right" style="font-family: Century Gothic; font-size: 12pt; color: Black">
                Selected Name value:-
            </td>
            <td>
                <b>
                    <label id="lValue" style="font-family: Century Gothic; font-size: 12pt; color: Aqua"/>
                </b>
            </td>
        </tr>
    </table>
    </form>
</body>
</html>


Get Selected Value on Dropdownlist selectedindexchanged event using JavaScript
Select Name:
Selected Name:-
Selected Name value:-

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