通过SqlDataAdapter 插入DataSet中的数据到数据库

 1 关于 通过SqlDataAdapter 插入DataSet中的数据到数据库 有两种方法：
 2 
 3 (1)
 4 
 5 使用SqlCommandBuilder 
 6 
 7   SqlConnection conn=new SqlConnection();
 8             conn.ConnectionString=ConfigurationManager.ConnectionStrings["TestDBConnectionString"].ConnectionString;
 9             conn.Open();
10             SqlCommand cmd=new SqlCommand();
11             cmd.CommandText="select * from UserInfo";
12             cmd.CommandType=CommandType.Text;
13             cmd.Connection=conn;
14             SqlDataAdapter adapter = new SqlDataAdapter();
15             SqlCommandBuilder build = new SqlCommandBuilder(adapter);
16             DataSet ds = new DataSet();
17             adapter.SelectCommand = cmd;
18             adapter.Fill(ds);
19             DataRow row = ds.Tables[0].NewRow();
20             row["UserName"] = "lhhhhhhhhhhhh";
21             row["UserSex"] = 0;
22             ds.Tables[0].Rows.Add(row);       
23             adapter.Update(ds);
24             adapter.Dispose();
25             cmd.Dispose();
26             conn.Dispose();
27 
28 (2) 使用 sqldataadapter 中的 insertcommand：
29 
30        SqlConnection conn=new SqlConnection();
31             conn.ConnectionString=ConfigurationManager.ConnectionStrings["TestDBConnectionString"].ConnectionString;
32             conn.Open();
33             SqlCommand cmd=new SqlCommand();
34             cmd.CommandText="select * from UserInfo";
35             cmd.CommandType=CommandType.Text;
36             cmd.Connection=conn;
37             SqlDataAdapter adapter = new SqlDataAdapter();
38             DataSet ds = new DataSet();
39             adapter.SelectCommand = cmd;
40             adapter.Fill(ds);
41             DataRow row = ds.Tables[0].NewRow();
42             row["UserName"] = "ccccjjjjjjjjjjj";
43             row["UserSex"] = 0;
44             ds.Tables[0].Rows.Add(row);
45             cmd.CommandText = "insert into UserInfo values(@username,@usersex)";
46             adapter.InsertCommand=cmd;
47             cmd.Parameters.Add(new SqlParameter("@username",SqlDbType.VarChar,50));
48             cmd.Parameters.Add(new SqlParameter("@usersex", SqlDbType.Bit));
49             cmd.Parameters[0].SourceColumn = "UserName";
50             cmd.Parameters[0].SourceVersion = DataRowVersion.Original;
51             cmd.Parameters[1].SourceColumn = "UserSex";
52             cmd.Parameters[1].SourceVersion = DataRowVersion.Original;
53             adapter.Update(ds);
54             adapter.Dispose();
55             cmd.Dispose();
56             conn.Dispose();
57