private void R2LButton_Click(object sender, EventArgs e)
{
if (dataGridView2.SelectedCells.Count == 0)
{
return;
}
foreach (DataGridViewCell cell in dataGridView2.SelectedCells)
{
var row = cell.OwningRow;
if (row.Index == -1)
{
continue;
}
var clazz = ((Data.Class)ClassBox.SelectedItem).ClassName;
var id = Convert.ToString(row.Cells[studentIdDataGridViewTextBoxColumn.Index].Value);
Data.DetailClass detail = Program.Entities.DetailClasses
.Where(d => d.ClassName == clazz && d.StudentId == id)
.FirstOrDefault();
Program.Entities.DetailClasses.Remove(detail);
}
Program.Entities.SaveChanges();
Reset();
}
private void L2RButton_Click(object sender, EventArgs e)
{
if (dataGridView1.SelectedCells.Count == 0)
{
return;
}
foreach (DataGridViewCell cell in dataGridView1.SelectedCells)
{
var row = cell.OwningRow;
if (row.Index == -1)
{
continue;
}
var id = Convert.ToString(row.Cells[studentIdDataGridViewTextBoxColumn.Index].Value);
var details = Program.Entities.DetailClasses
.Where(d => d.StudentId == id)
.ToList();
foreach (Data.DetailClass d in details)
{
Program.Entities.DetailClasses.Remove(d);
}
var detail = new Data.DetailClass();
detail.Class = (Data.Class)ClassBox.SelectedItem;
detail.Student = Program.Entities.Students
.Where(s => s.StudentId == id)
.FirstOrDefault();
Program.Entities.DetailClasses.Add(detail);
}
Program.Entities.SaveChanges();
Reset();
}
