MySqlConnection sqlconn = new MySqlConnection(MyConnectionString);
sqlconn.Open();
MySqlCommand sqlcmd1 = new MySqlCommand("SELECT * FROM Instructor", sqlconn);
MySqlDataReader dr1;
dr1 = sqlcmd1.ExecuteReader();
while (dr1.Read())
{
// get the results of each column
int id = (int)dr1["ID_Instructor"];
string firstname = (string)dr1["f_name"];
string lastname = (string)dr1["l_name"];
string school = (string)dr1["d_school"];
string category = (string)dr1["category"];
var instructors = new List<Instructor>
{
new Instructor
{
Id = id,
Fullname = firstname+" "+lastname,
Details = school+" "+category
}
};
InstructorsListView.ItemsSource = instructors;
}
Hi!
I'm trying to fill up my ListView in Xamarin.Forms . I do this by MySqlDataReader. With this code I get only one record from database because the while loop is overriding it.
How should I do this when I want to fill the list with all of the data from database?
Put the instructors
declaration outside of your while loop:
var instructors = new List<Instructor>();
while (dr1.Read())
{
..
/* Populate here your instructor data */
var instructor = new Instructor
{
Id = id,
Fullname = firstname+" "+lastname,
Details = school+" "+category
}
instructors.Add(instructor);
}
InstructorsListView.ItemsSource = instructors;
Currently you are overriding your collection instead of adding a new instructor to your collection on each loop iteration.
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