how to drop down selected values still remain in drop down after post back

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Hi friends....
I am new in programming I have 2 drop down lists one is for cites and the other one is for areas and when I select any city all the areas of that city are shown in area dropdown and its working fine but after post back drop down selectd values reset...I want selected values still remain in drop down please give any idea

Posted 18-Jul-14 7:31am

Member 10927231

Updated 18-Jul-14 8:10am

Christian Amado

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Raj Negi 18-Jul-14 14:11pm

Put your first dropdown inside the update panel.

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Christian Amado · Accepted Answer · 2014-07-18T08:14:00

Solution 1

1. Enable Autopostback="true" in both DropDownList controls (specially for the cities).
2. In your SelectedIndexChanged of cities DropDownList ensure that you are using this if statement:

C#

if (!Page.IsPostBack)
{
    //Call your method for fill data in areas ddl here
}

Hope it helps

Posted 18-Jul-14 8:14am

Christian Amado

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Member 10927231 19-Jul-14 3:25am

thanks for your reply....
actually I am creating web application where customer select city from drop down and all areas of that city are shown successfully in areas drop down and it also giving me results for selected value on particular page but these drop down lists located at master page and I want while redirecting on another page the values of master page drop downs cities,areas should remain same that I have selected before redirecting.