I am stuck with a problem. I am working with Visual Studio.NET 2003 in C#.
I have a webform (say webform1) on which many textboxes,dropdownlists etc are present. One of them is a listbox(listbox1) control which is blank . By the side of it there is a button (Button1). The user should fill up some textboxes etc (which are above the listbox1) before clicking the 'Button1'. After clicking the 'Button1' , a 'webform2' opens.
In 'webform2', there are two listboxes: 'listbox2' and 'listbox3' and 2 buttons: 'button2' and 'button3' .
Now, when the user chooses values in 'listbox2' and presses 'button2' , 'listbox3' should fill up with values. When the user chooses values in 'listbox3' and then clicks 'button3' then 'webform2' should close and the values selected in 'listbox2' and 'listbox3' should be combined as :
listbox2 value(listbox3 value)
and should be displayed in 'listbox1' in 'webform1'. Here, care should be taken so that 'webform1' doesn't lose values previously entered by user.
Thanks and regards,