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SqlDataAdapter dataAdapter = new SqlDataAdapter(SQL, CONNECTION);
string insertSQL = "INSERT INTO [Employee]([name], [age]) VALUES(@name, @age)";
SqlCommand insertCmd = new SqlCommand(insertSQL, CONNECTION);
insertCmd.Parameters.Add(new SqlParameter("@name", SqlDbType.Char, 32, "name"));//name是DataTable中对应的列名
insertCmd.Parameters.Add(new SqlParameter("@age", SqlDbType.Real, 8, "age"));
dataAdapter.InsertCommand = insertCmd;
insertCmd.UpdatedRowSource = UpdateRowSource.None;
dataAdapter.UpdateBatchSize = 0;
dataAdapter.Update(DataTable);
//假设数据库中有需要插入三列,col1,col2,col3,其它字段为可空
//假设均为字符型,其它类型的话要转换一下,Convert.To...
//DataTable中有对应的三列数据,每行的1,3,5列
foreach(DataRow dr in datatable.Rows)
{
string c1 = dr[1].ToString();
string c2 = dr[3].ToString();
string c3 = dr[5].ToString();
InsertDB(c1,c2,c3);
}
private void InsertDB(string c1,string c2,string c3)
{
SqlConnection conn = null;
try
{
string connStr = ConfigurationManager.Configuration["connectionString"].ConnectionString;
conn = new SqlConnection(connStr);
string sql = "insert into Employee(col1,col2,col3)"
sql += "values('"+c1+"','"+c2+"','"+c3+"')";
conn.Open();
SqlCommand cmd = new SqlCommand(sql,conn);
int rows = cmd.ExecuteNonQuery();
}
finaly
{
if(conn != null)
{
conn.Close();
conn.Dispose();
}
}
}