从下拉列表中选择时阻止页面刷新 [英] Preventing page refresh on selecting from dropdownlist

问题描述

如何在从下拉列表中选择项目时阻止页面重新加载/页面刷新???

解决方案

放置所有控件或放置必要的控件，这将导致页面重新加载在工具箱（Ajax扩展工具栏）的UPDATEPANEL中，将scriptManger放在设计页面中，这样可以防止一次又一次地加载页面......现在你的工作已经结束了...... !!!

希望这会对你有所帮助。

 <   asp： updatepanel     id   =  UpdatePanel1    runat   =  server    xmlns：asp   = ＃unknown >  
 <   contenttemplate  >  
区：<   asp：dropdownlist     id   =  ddl_dist    runat   =  server    autopostback   =  True    height   =  21px    width   =  172px >  
 <   / asp：dropdownlist  >  
 Taluq：<   asp：dropdownlist     id   =  ddl_tq    runat   =  server    autopostback   =  True    height   =  24px    width   =  174px >  
 <   / asp：dropdownlist  >  
 
地点：< ;   asp：dropdownlist     id   =  ddl_place    runat   =  server    autopostback   =  True     height   =  24px    width   =  173px >  
 <   / asp：dropdownlist  < span class =code-keyword>>  
 
 Pincode：<   asp：dropdownlist     id   =  ddl_pin    runat   =  server    enabled   =  False    height   =  25px    width   =  171px >  
 < ;   / asp：dropdownlist  >  
 <   / contenttemplate  >  
 <   / asp：updatepanel  >  

MaintainScrollPositionOnPostback = 真

>

How to Prevent page reload/page refresh on selecting an item from dropdownlist???

解决方案

Place your all controls or place necessary controls which will cause page reload in an UPDATEPANEL from toolbox(Ajax Extension toolbar) and place a scriptManger in the design page this will prevent loading page again and again.....and your work is over now..!!!
Hope this will help you.

<asp:updatepanel id="UpdatePanel1" runat="server" xmlns:asp="#unknown">
<contenttemplate>
District:<asp:dropdownlist id="ddl_dist" runat="server" autopostback="True" height="21px" width="172px">
</asp:dropdownlist>
Taluq:<asp:dropdownlist id="ddl_tq" runat="server" autopostback="True" height="24px" width="174px">
</asp:dropdownlist>                    

Place:<asp:dropdownlist id="ddl_place" runat="server" autopostback="True" height="24px" width="173px">
</asp:dropdownlist>

Pincode:<asp:dropdownlist id="ddl_pin" runat="server" enabled="False" height="25px" width="171px">
</asp:dropdownlist>
</contenttemplate>
</asp:updatepanel>

MaintainScrollPositionOnPostback="true"

>

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