如何从datatable向datagridview添加组合框?

这是一个代码，我从datatable添加值到datagridview。datagridview的"第一"answers"第三"列已经填充了来自数据表的数据。问题是"第二"answers"第四"列，因为我必须让它成为一个组合框供用户选择。每个组合框都有默认值"columnDefaultValue"。

string sqlMatchedData = "SELECT colA, colB, colC, colD " +
                        "FROM TB_LOOKUP_COLUMN "
ds = databaseManager.GetData(sqlMatchedData);
dataGridView1.ColumnCount = 4;
dataGridView1.Columns[0].Name = "First";
dataGridView1.Columns[1].Name = "Second";
dataGridView1.Columns[2].Name = "Third";
dataGridView1.Columns[3].Name = "Forth";
foreach(DataRow row in ds.Tables[0].Rows)
{
    int n = dataGridView1.Rows.Add();
    dataGridView1.Rows[n].Cells[0].Value = row[0].ToString();
    dataGridView1.Rows[n].Cells[2].Value = row[3].ToString();
    string columnDestination = row[1].ToString();
    string columnType = row[2].ToString();
    comboboxDestinationColumn(columnDefaultValue);
}

如何使用数据表创建组合框并将其绑定到特定的单元格?

private void comboboxDestinationColumn(string columnDefaultValue)
{
    string sqlLookupColumn = "SELECT colALookUp, colBLookUp FROM TB_LOOKUP_COLUMN";
    DataSet dsColumn = databaseManager.GetData(sqlLookupColumn);
    DataGridViewComboBoxColumn combo = new DataGridViewComboBoxColumn();
    combo.HeaderText = "Destination";
    combo.Name = "combo";
    foreach(DataRow row in dsColumn.Tables[0].Rows)
    {
        //populate combobox with data from datatable with defaul value columnDefaultValue 
    }
}

编辑

我找到了将组合框添加到datagridview的方法。但是我仍然缺乏如何设置每个组合框的默认值基于变量columnDefaultValue

的方式

private void comboboxDestinationColumn(string columnDefaultValue, int n)
{
    string sqlLookupColumn = "SELECT colALookUp, colBLookUp FROM TB_LOOKUP_COLUMN";
    DataSet dsColumn = databaseManager.GetData(sqlLookupColumn);
    DataGridViewComboBoxCell comboboxColumn = new DataGridViewComboBoxCell();
    foreach (DataRow row in dsColumn.Tables[0].Rows)
    {
        comboboxColumn.Items.Add(row[1].ToString());
    }
    dataGridView1.Rows[n].Cells[1] = comboboxColumn;
}

我想找一些像

comboboxColumn.Selected = true;

正确的方法是什么?