C# :: Linked List Storing String Values

I am creating a to-do list application and to store the tasks on the list, I am trying to create a linked list. the code for it so far is as follows:

public class Node //Class for nodes which make up a linked list {
//Declaring the data to be stored in each node and next variable to point to the next node
public string title;
public string description;
public string priority;
public string finish;
public string complete;

[Code] ....

The problem with this arises when I try to create a new node from another class like so:

createForm create = new createForm(); //Creates an object reference to createForm
create.ShowDialog(); //Shows the createTask form for creating a new task
//Declares variables and stores the return value of methods in createForm
string _title = create.getTitle;

[Code] ....

The variables _title etc.. all store values from text boxes as string. However, the code creating the object says the the variables cannot be implicitly converted from type 'string' to 'int'. Why this error is happening??