private void btnImport2_Click(object sender, EventArgs e)
{
OpenFileDialog dialog = new OpenFileDialog();
if (dialog.ShowDialog() == DialogResult.OK)
{
string path = dialog.FileName;
string[] arr = File.ReadAllLines(path);
DataTable table = new DataTable();
table.Columns.AddRange(new DataColumn[] {
new DataColumn("UserId"),
new DataColumn("MovieId"),
new DataColumn("Rating"),
new DataColumn("Timestamp")
});
for (int i = 1; i < arr.Length; i++)
{
string[] a = arr[i].Split(',');
DataRow row = table.NewRow();
row["UserId"] = int.Parse(a[0]);
row["MovieId"] = int.Parse(a[1]);
row["Rating"] = (byte)decimal.Parse(a[2]);
row["Timestamp"] = int.Parse(a[3]);
table.Rows.Add(row);
}
RatingRepository repository = new RatingRepository();
repository.Add(table);
MessageBox.Show("Success");
gvImport.DataSource = table;
}
}
private void btnImport_Click(object sender, EventArgs e)
{
OpenFileDialog dialog = new OpenFileDialog();
if (dialog.ShowDialog() == DialogResult.OK)
{
string path = dialog.FileName;
MessageBox.Show(path);
string[] arr = File.ReadAllLines(path);
List <Rating> ratings = new List <Rating>();
for (int i = 1; i < arr.Length; i++) // dòng đầu tiên là tên cột
{
string[] a = arr[i].Split(',');
Rating obj = new Rating
{
UserId = int.Parse(a[0]),
MovieId = int.Parse(a[1]),
Ratings = (byte)decimal.Parse(a[2]),
Timestamp = int.Parse(a[3])
};
ratings.Add(obj);
}
RatingRepository repository = new RatingRepository();
int s = repository.Add(ratings);
if (s > 0)
{
MessageBox.Show("Success");
}
gvImport.DataSource = ratings;
}
}
