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我想用DataAdapter将新记录插入到DataTable中。 Person表中有2列。名字和姓氏。
我有一个像下面的代码。无法用C＃中的SqlDataAdapter和MSSqlServer插入到数据库中
SqlConnection connection;
DataSet dsPerson;
SqlDataAdapter adapter;
string connectionString = Properties.Resources.ConnectionString;
connection = new SqlConnection(connectionString);
dsPerson = new DataSet("PersonDataSet");
adapter = new SqlDataAdapter();
SqlCommand selectCommand = new SqlCommand("SELECT * FROM Person", connection);
adapter.SelectCommand = selectCommand;
adapter.Fill(dsPerson, "Person");
string insertQuery = "INSERT INTO Person(FirstName, LastName) VALUES (@FirstName, @LastName)";
SqlCommand insertCommand = new SqlCommand(insertQuery, connection);
insertCommand.Parameters.Add(new SqlParameter("@FirstName", SqlDbType.NVarChar));
insertCommand.Parameters["@FirstName"].SourceVersion = DataRowVersion.Current;
insertCommand.Parameters["@FirstName"].SourceColumn = "FirstName";
insertCommand.Parameters.Add(new SqlParameter("@LastName", SqlDbType.NVarChar));
insertCommand.Parameters["@LastName"].SourceVersion = DataRowVersion.Current;
insertCommand.Parameters["@LastName"].SourceColumn = "LastName";
adapter.InsertCommand = insertCommand;
但是，当我尝试插入新的记录到DataSet它出现在DataSet中。但它不会将新记录插入到DataBase中。
插入代码如下。
connection.Open();
DataRow newRow = dsPerson.Tables["Person"].NewRow();
newRow["FirstName"] = "Joseph";
newRow["LastName"] = "Sword";
dsPerson.Tables["Person"].Rows.Add(newRow);
dsPerson.Tables["Person"].AcceptChanges();
dsPerson.AcceptChanges();
adapter.Update(dsPerson, "Person");
connection.Close();
我甚至尝试跟踪查询发送到SQL Server与Express Profiler。我看到它不会发送插入命令到数据库。
那么问题是什么？如何解决它？
谢谢。