Убрать хвостовые пробелы в DataGridView

DataGridView reportProiz = new DataGridView();
reportProiz.Location = new Point(25, 120);
reportProiz.Width = 1200;
reportProiz.Height = 400;
 
DataGridViewTextBoxColumn dgvNameDet = new DataGridViewTextBoxColumn();
dgvNameDet.Name = "Наименование";
dgvNameDet.Width = 400;
dgvNameDet.HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleCenter;
dgvNameDet.DataPropertyName = "detname";
 
DataGridViewTextBoxColumn dgvKolDet = new DataGridViewTextBoxColumn();
dgvKolDet.Name = "Количество";
dgvKolDet.Width = 80;
dgvKolDet.HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleCenter;
dgvKolDet.DataPropertyName = "vpar";
 
reportProiz.Columns.Add(dgvNameDet);
reportProiz.Columns.Add(dgvKolDet);
 
 
string connectionString = @"Data Source=*****\*****;Initial Catalog=***;Integrated Security=true";
SqlConnection Con = new SqlConnection(connectionString);
string command = "SELECT det.detname, sum(proiz.vpar) as vpar FROM det, proiz where year(proiz.data)=2024 " +
    " and month(proiz.data)=8 and det.iddet=proiz.iddet group by det.detname";
 
SqlDataAdapter dataadapter = new SqlDataAdapter(command, connectionString);
DataSet ds = new DataSet();
 
Con.Open(); 
dataadapter.Fill(ds, "proizTable");
Con.Close(); 
 
reportProiz.DataSource = ds;
reportProiz.DataMember = "proizTable";
this.Controls.Add(reportProiz);