DataTable dt = _product.GetCode(cbbCategory.Text);//声明DataTabble对象并赋值

ComboBox1.DataSource = dt;//绑定DataTable

ComboBox1.DisplayMember = dt.Columns["code"].ToString();//设置要显示的DataTable的列

foreach(string col in color)
{
     ComboBox1.Items.Add(col);
}

string[] colors = product.GetColor(code);//颜色数组作为行
string[] sizes = product.GetSize(code);//尺码数组作为列
 if (colors == null || sizes == null) return;
dgvPurchase.ColumnCount = sizes.Length;//设置列数
 for (int i = 0; i < sizes.Length; i++)
{
     dgvPurchase.Columns[i].Name = sizes[i];//循环给列头命名
}
dgvPurchase.RowCount = colors.Length;//设置行数
 for (int j = 0; j < colors.Length; j++)
{
dgvPurchase.Rows[j].HeaderCell.Value = colors[j];//循环给行头命名
}

DataGridViewRow dr = new DataGridViewRow();//声明行
dr.CreateCells(dgvProduct);
dr.Cells[0].Value = http://www.mamicode.com/strs[0];//添加元素
dr.Cells[1].Value = http://www.mamicode.com/strs[1];
dr.Cells[2].Value = http://www.mamicode.com/strs[2];
dr.Cells[3].Value = http://www.mamicode.com/strs[3];
dr.Cells[4].Value = http://www.mamicode.com/strs[4];
dr.Cells[5].Value = http://www.mamicode.com/strs[5];
dr.Cells[6].Value = http://www.mamicode.com/strs[6];
dgvProduct.Rows.Add(dr);//插入行

foreach(DataGridViewRow dr in DataGridView1.Rows)
{
    for(int i=0;i<dr.Cells.Count;i++)
    {
       str[i]=dr[i].Value.ToString();//提取元素
    }
}