hashtable绑定gridview

Hashtable ht1 = new Hashtable(); //创建一个Hashtable实例
ht1.Add("张三", "100"); //添加keyvalue键值对
ht1.Add("李四", "100");
ht1.Add("王五", "100");
ht1.Add("赵六", "200");
DataTable dt1 = new DataTable();
dt1.Columns.Add("name");
dt1.Columns.Add("age");
foreach (string key in ht1.Keys)
{
DataRow NewRow = dt1.NewRow();
NewRow["name"] = key;
NewRow["age"] = ht1[key];
dt1.Rows.Add(NewRow);
}
dataGridView1.DataSource = dt1;