怎么样用DataSet&DataGrid来实现数据库的添加
string strConn="server=KOBE;database=student;uid=sa;pwd=;";
SqlConnection myConn=new SqlConnection(strConn);
myConn.Open();
string strSQL="select * from class";
// SQLDataSetCommand cmdSQL=new SQLDataSetCommand(strSQL,myConn);
SqlDataAdapter obj=new SqlDataAdapter(strSQL,myConn);
DataSet ds=new DataSet();
obj.Fill(ds,"class");

DataRow dr = ds.Tables["class"].NewRow();

dr["name"] =TextBox1.Text.Trim();
dr["age"] =TextBox2.Text.Trim();
dr["address"] =TextBox3.Text.Trim();
ds.Tables["class"].Rows.Add(dr);
obj.Update(ds,"class");
DataGrid1.DataSource=ds.Tables["class"].DefaultView;
DataGrid1.DataBind();
我做显示的时候能出来 但是做插入的时候该怎么做!!我做的插入!运行的时候出现
当传递具有新行的 DataRow 集合时，更新要求有效的 InsertCommand。该怎么解决!!!!!谢谢拉!!在线

给你一个例子吧，你少了红色的那段话。

SqlConnection conn = new SqlConnection(strConn);

conn.Open();

string strSql = "SELECT * FROM table1";
SqlDataAdapter myAdp = new SqlDataAdapter(strSql,conn);
SqlCommandBuilder myBuilder = new SqlCommandBuilder(myAdp);
DataSet ds = new DataSet();
myAdp.Fill(ds,"fill");

DataRow dr = ds.Tables[0].NewRow();
dr["row1"] = "测试";
ds.Tables[0].Rows.Add(dr);

myAdp.Update(ds,"fill");

this.DataGrid1.DataSource = ds.Tables[0].DefaultView;
this.DataGrid1.DataBind();
conn.Close();