在C＃winForm中一次删除多个实体

Question

I am using the following code to delete records from entity model by datagridview in a winForm application.

var context= new AdminEntites();
foreach (DataGridViewRow row in dgvLoadTable.Rows)
    {
        if (row.Cells["chkcol"].Value != null && row.Cells["chkcol"].Value.Equals(true)) 
        {

            var selectedRec = (FILTER)this.rtBindingSource.Current;
                     //FILTER is the table name
                 context.DeleteObject(selectedRec);
                 context.SaveChanges();
          }
      }

This code is only deleting a single row one at a time. How can I delete all the selected rows at once?

Answer 1

The working code is:

foreach (DataGridViewRow row in this.dgvLoadTable.SelectedRows)
 {
    if (row.Cells["chkcol"].Value != null && row.Cells["chkcol"].Value.Equals(true)) 
    rtBindingSource.RemoveAt(row.Index);
  }//end of foreach
context.SaveChanges();