SQL Server Compact 3.5查询运算符

Question

i am trying to display the ID number by using this query

IQueryable<ToDoList> todolistQuery = from c in context.ToDoList where c.Title == NavigationContext.QueryString["Title"] & c.Description == NavigationContext.QueryString["Desc"] & c.Id == NavigationContext.QueryString["Id"] select c;

This Line:

c.Id == NavigationContext.QueryString["Id"]

has a red underline below it stating int ToDoList.Id Error: Operator '==' cannot be applied to operands of type 'int' and 'string'

What have I actually done wrong? How do I solve it? Thanks

Answer 1

Convert your NavigationContext.QueryString["Id"] to integer :

c.Id == Convert.ToInt32(NavigationContext.QueryString["Id"])

And it should be fine.