How to link two Drop DownsBox.

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I want to link two DropDown such that selection in one dropdown make necessary changes in other and display that detail in respective fields.......

Note:I am getting data in drop down from SQL Database.

Posted 28-Jun-11 21:52pm

lovejeet0707

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walterhevedeich · Answer 1 · 2011-06-28T22:13:00

Solution 1

Lets say you have 2 dropdownlists named A and B. When selected value of A changes, you do something in B. If this is your scenario, you need to set the AutoPostBack[^]property of A to true. And on the SelectedIndexChanged[^] event of A, you put what you need to do to B.

Posted 28-Jun-11 22:13pm

walterhevedeich

Abhinav S · Answer 2 · 2011-06-28T22:14:00

Solution 2

You can have a look at the AJAX cascading drop down control[^].

Posted 28-Jun-11 22:14pm

Abhinav S

Updated 28-Jun-11 22:15pm

v2

RakeshMeena · Answer 3 · 2011-06-28T22:57:00

Solution 3

You can have cascading dropdowns (as Abhinav said) as well as normal dropdowns (aided by JQuery & JSON). Refer my answer to a similar question.

Posted 28-Jun-11 22:57pm

RakeshMeena

mahabubur rahman · Answer 4 · 2011-06-28T22:59:00

Solution 4

You can use AJAX CascadingDropDownList from AjaxControlToolkit for details go http://www.asp.net/ajaxlibrary/act_tutorials.ashx[^]

see another link
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.listcontrol.selectedindexchanged.aspx[^]
AJAX DropDownList[^]

Thanks

Posted 28-Jun-11 22:59pm

mahabubur rahman