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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
Comments
Balakrishnan Dhinakaran 17-Dec-11 5:41am
   
my vote 5 for clear description of question

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

Some of them are useful to you.
QueryString
Session
   
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
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.
   
Comments
SharanuKumar 5-Nov-19 0:35am
   
Session["lastSelectedCountryIndex"] = DropDownList1.SelectedIndex; is storing the same "lastSelectedCountryIndex" value in the session but not the index 1 in my project...
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.
   
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
   
Comments
nane aa 18-Dec-11 3:01am
   
U put session it is working..
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..
   

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