how to pass selected value from dropdown to another dropdown in next page

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Hi,

i have a form when user select value from dropdown it can direct them to another page.but in the next page i want the selected value to be pass to another dropdown.

for instance: user select country;then go straight to next page where there is a dropdown already selected the country value. then only they can do the next process...

note:(listitem in dropdown is same with the 1st)

hope anyone can help me.

thanks.

Posted 16-Dec-11 23:29pm

musiw

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Balakrishnan Dhinakaran 17-Dec-11 5:41am

my vote 5 for clear description of question

6 solutions

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Amir Mahfoozi · Answer 1 · 2011-12-17T01:48:00

Here is one solution :
Set the AutoPostBack to true in first DropDownList then write in its SelectedIndexChanged event handler :

C#

Session["lastSelectedCountryIndex"] = DropDownList1.SelectedIndex;

In the second page OnLoad event handler write this code :

C#

if (Session["lastSelectedCountryIndex"]!=null)
    DropDownList2.SelectedIndex = Convert.ToInt32((Session["lastSelectedCountryIndex"]).ToString());

There are some other state management options in ASP.NET which can be found here :
http://msdn.microsoft.com/en-us/library/75x4ha6s.aspx[^]

Hope it helps.

Balakrishnan Dhinakaran · Answer 2 · 2011-12-16T23:38:00

Solution 1

Pass the selected value to the next page using session.

then on the second page

C#

protected void Page_Load(object sender, EventArgs e)
    {
  ListBox2.Text = <call the session value>
    }

Posted 16-Dec-11 23:38pm

Balakrishnan Dhinakaran

Sridhar Patnayak · Answer 3 · 2011-12-16T23:40:00

Solution 2

Their are many ways to pass the values from one page to another page

Some of them are useful to you.
QueryString
Session

Posted 16-Dec-11 23:40pm

Sridhar Patnayak

Updated 16-Dec-11 23:41pm

v2

Comments

musiw 18-Dec-11 1:17am

ok.im using query string.but now the problem is when i have to pass long value it doesnt work it.

i try to pass it to Label first.just to see if it pass the value or not..for example the value is "Signals & Communication Failure"..it just appear Signals the rest are gone.

help me pls.thanks

Sridhar Patnayak 19-Dec-11 1:40am

You have to send the value of dropdown in the form of String, in the second page you have to convert it in to long value--- it will work

**AmitGajjar** · Answer 4 · 2011-12-17T02:26:00

Solution 4

hi,

you may use below code,

C#

public void page_load()
{
  if(!IsPostBack)
  {
      DropDownList ddl = (DropDownList)PreviousPage.FindControl("DropDownList1");
      DropDownList2.SelectedIndex = ddl.SelectedIndex;
  }
}

hope this will help you,

thanks
-amit.

Posted 17-Dec-11 2:26am

AmitGajjar

musiw · Answer 5 · 2011-12-17T19:23:00

Solution 6

ok.im using query string.but now the problem is when i have to pass long value it doesnt work it.

i try to pass it to Label first.just to see if it pass the value or not..for example the value is "Signals & Communication Failure"..it just appear Signals the rest are gone.

help me pls.thanks

Posted 17-Dec-11 19:23pm

musiw

Comments

nane aa 18-Dec-11 3:01am

U put session it is working..

nane aa · Answer 6 · 2011-12-17T09:21:00

Solution 5

i think this code use for u..

in first page dropdownlist value put in session
in second page means next page

here
yourvalue= session value,

C#

DropDownListID.Items.FindByValue("yourValue").Selected = true;

this second page code in page_load only..

Posted 17-Dec-11 9:21am

nane aa

how to pass selected value from dropdown to another dropdown in next page

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