How do I search info using linklist

To search a linked list you have to traverse the list. Here is a snippet of code that will traverse a list. It assumes the list pointer aims at the head of the list and there is a method to get a pointer to the next entry in the list.

ListItem * p = pList;
while( p )
{
   // here you compare p's data to the item you are searching for

   p = p->Next();
}

Typically each entry of the list has a pointer to the next entry (the link) so the Next method would just return that or you could change it to assign the pointer to p. If your comparison finds a match then you have a pointer to the list item to use. A common thing to do is to make a search function to find a text string in the list. Here's an example of one where the ListItem has a pointer to a text string and the pointer to the next item is called pNext :

ListItem * FindText( ListItem *pList, const char *txt )
{
    ListItem * p = pList;
    while( p )
    {
       if( strcmp( p->Text, txt ) == 0 )
           break;   // found it so stop traversing the list
       p = p->pNext;
    }
    return p;  // points to item with matching text or null if none
}