how to set a dropdown binding without loading a page ?

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hi Every one,
Now i am developing a website, here i need to work with dropdown box. In that situation dropdown is loaded from DB but my problem is whenever dropdown is Binded or value selected, the page will be automatic Reloaded. other textbox and check values are Disappear. here i will again fill the textbox how to avoid page reload in my dropdown selection.
i hope you all understand my problem.

Posted 18-Jun-13 20:09pm

srigates

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3 solutions

Solution 1

You are obviously just learning ASP.NET. I recommend learning MVC instead, it's better.

If you set AutoPostback to false, your control won't cause a postback.

Posted 18-Jun-13 20:12pm

Christian Graus

Solution 2

Set dropdown AutoPostBack to false

AutoPostBack="false"

<asp:DropDownList ID="DropDownList1" AutoPostBack="false" runat="server">
    </asp:DropDownList>

Posted 18-Jun-13 20:14pm

Mahesh Bailwal

Updated 18-Jun-13 20:19pm

v2

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srigates 19-Jun-13 2:35am

thank u..

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Mukesh Ghosh · Accepted Answer · 2013-06-18T20:49:00

All you need to use UpdatePanel.
Here is a example

<form id="form1" runat="server">
<asp:scriptmanager runat="server" id="ScriptManager1" xmlns:asp="#unknown">
<asp:updatepanel runat="server" id="UpdatePanel1" xmlns:asp="#unknown">
<contenttemplate>
<asp:dropdownlist runat="server" id="DropDown1" autopostback="true">
<asp:listitem text="DropDown1Item1" value="DropDown1Value1">
<asp:listitem text="DropDown1Item2" value="DropDown1Value2">
<asp:listitem text="DropDown1Item3" value="DropDown1Value3">

</form>