How to reload a drop downlist without reloading the whole page

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Good day all, please can some one help me out on how to reload a dropdownlist without reloading the page using JQuerry or any one..

Currently i am using this auto post back event

C#

 protected void DropVentureName_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (DropName.SelectedIndex == 2)
            {
                DropSelectWait.Visible = true;

            }
// the method i am using reloads the page, i want it to reload only dropdownlist...How can i do that

Thanks, I do appreciate

[edit]SHOUTING removed - OriginalGriff[/edit]

Posted 7-Nov-13 1:26am

Difameg Network Nigeria

Updated 7-Nov-13 1:37am

OriginalGriff

v2

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OriginalGriff 7-Nov-13 7:37am

DON'T SHOUT. Using all capitals is considered shouting on the internet, and rude (using all lower case is considered childish). Use proper capitalisation if you want to be taken seriously.

♥…ЯҠ…♥ 7-Nov-13 8:28am

Out of curious..... is there any link for these standards, could you share the link with me?

OriginalGriff 7-Nov-13 9:32am

http://en.wikipedia.org/wiki/Etiquette_(technology)

♥…ЯҠ…♥ 7-Nov-13 22:53pm

Thanks Griff.....

OriginalGriff 8-Nov-13 1:41am

You're welcome!

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Ziee-M · Answer 1 · 2013-11-07T01:36:00

Solution 1

Hi, you can use client side postback, its fast and easy to use with Asp.net ajax extension (in the tool box).

here is a link how to use it:
http://www.youtube.com/watch?v=3HdJu1U6ciQ</a>[^]

Posted 7-Nov-13 1:36am

Ziee-M

Jules Kiddo · Answer 2 · 2013-11-07T02:00:00

Solution 2

Indeed use AJAX, more specific using updatepanel would be the easiest way.

XML

<asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
<asp:DropDownList
             ID="DropDownList1"
             runat="server"
             AutoPostBack="true"
             OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged"
             >
        </asp:DropDownList>
            </ContentTemplate>
        </asp:UpdatePanel>

http://msdn.microsoft.com/en-us/library/bb399001.aspx[^]

Posted 7-Nov-13 2:00am

Jules Kiddo

Updated 7-Nov-13 2:02am

v2

Comments

Difameg Network Nigeria 7-Nov-13 8:33am

i have done that but not working
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<contenttemplate>

<asp:DropDownList ID="DropVentureName" runat="server" Width="250px"
Height="30px" AutoPostBack="True"
onselectedindexchanged="DropVentureName_SelectedIndexChanged">
<asp:ListItem Selected="True">Please Select
<asp:ListItem>CONS BREW
<asp:ListItem>NBC
<asp:ListItem>NIG BREW
<asp:ListItem>GUINESS
<asp:ListItem>LAFURE

Just a sample of it

Jules Kiddo 7-Nov-13 17:01pm

Add <asp:ScriptManager> and <contenttemplate> tags. Also close all tags properly.

Difameg Network Nigeria 8-Nov-13 4:12am

I have added it before sending the information, but still yet not working

sankarsan parida · Answer 3 · 2013-11-07T22:51:00

Solution 3

Use juqery to bind dropdownlist without refresh of a page
See some good links

Populate dropdown using jQuery and KnockOut

http://www.c-sharpcorner.com/Blogs/13350/bind-dropdownlist-in-Asp-Net-using-jquery.aspx

Posted 7-Nov-13 22:51pm

sankarsan parida

Updated 7-Nov-13 23:47pm

v2

Comments

Difameg Network Nigeria 8-Nov-13 5:32am

the codes are too long
just need a simple code using the inbuilt Update panel and scriptmanager.