Question

I’m trying to bind a list of data to a data grid, but can’t do it. I’m giving my code here.

I have made a class like this:

public class Book
{
    int bookID;
    string bookName;
    string athourName;

    public Book(int BookID, string BookName, string AuthorName)
    {


        bookID = BookID;
        bookName = BookName;
        athourName = AuthorName;

    }
}

Under form load event, I wrote the following code:

 private void Form1_Load(object sender, EventArgs e)
    {
        Book Book1 = new Book(001, "Java", "Harbart");
        Book Book2 = new Book(002, "C", "Balaguru");

        string[] BookArray = new string[10];

        BookArray[0] = Book1.ToString();
        BookArray[1] = Book2.ToString();


        List<Book> Obj = new List<Book>();

        Obj.Add(Book1);
        Obj.Add(Book2);

        dataGridView1.DataSource = Obj;
    }

This doesn’t give any error, but also not showing any data in the data grid. I have a feeling I’m missing something in between. A clarification on how to bind data to data grid would be very helpful.

Answer 1

The DataGridView requires public properties to autogenerate its columns. It will not work with fields, either public or private.

Change your class to this:

public class Book
{
    public int bookID { get; set; }
    public string bookName { get; set; }
    public string athourName { get; set; }

    public Book(int BookID, string BookName, string AuthorName)
    {
        bookID = BookID;
        bookName = BookName;
        athourName = AuthorName;
    }
}

That uses auto-properties but you can of course use the longhand syntax as well.