我一直在网上寻找答案,但还没有发现任何东西。我有一个小的控制台应用程序,我试图插入一些数据到SQL Server数据库(.mdf
数据库文件),一切都运行没有错误,但当我在服务器资源管理器事实后打开数据库时,数据不存在。无法获取数据提交到SQL Server
这是代码:
using (TransactionScope scope = new TransactionScope())
{
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["FrameBudgetDB"].ToString()))
{
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
conn.Open();
cmd.CommandText = string.Format("SELECT TOP 1 category_id FROM businesses WHERE '{0}' LIKE CONCAT('%',description,'%')", transDescription.Replace("'", "''"));
SqlDataReader reader = cmd.ExecuteReader();
try
{
if (reader.HasRows)
{
while (reader.Read())
{
categoryId = (int)reader[0];
}
}
else
{
categoryId = 44; // Unknown
}
}
finally
{
reader.Close();
}
// Get Transaction Type
int transTypeId = 0;
cmd.CommandText = string.Format("SELECT trans_type_id FROM transaction_types WHERE description = '{0}'", transType);
reader = cmd.ExecuteReader();
try
{
if (reader.HasRows)
{
while (reader.Read())
{
transTypeId = (int)reader[0];
}
}
}
finally
{
reader.Close();
}
SqlTransaction trans = conn.BeginTransaction("InsertTransactiolns");
try
{
cmd.Transaction = trans;
cmd.CommandText = string.Format(
"BEGIN " +
"IF NOT EXISTS(SELECT * FROM transactions " +
"WHERE transaction_date = '{0}' " +
"AND description = '{1}' " +
"AND trans_type_id = {2} " +
"AND amount = {3} " +
"AND(category_id = {5} OR previous_category_id = {5})) " +
"BEGIN " +
"INSERT INTO transactions(transaction_date, description, trans_type_id, import_date, category_id, amount) " +
"VALUES('{0}', '{1}', {2}, '{4}', {5}, {3}) " +
"END " +
"END", transDate, transDescription.Replace("'", "''"), transTypeId, amount, DateTime.Now, categoryId);
rowsInserted = rowsInserted + cmd.ExecuteNonQuery();
trans.Commit();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
try
{
trans.Rollback();
}
catch (Exception e2)
{
Console.WriteLine(e2.Message);
}
}
}
}
数据库连接字符串是:
<connectionStrings>
<add name="FrameBudgetDB"
connectionString="Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|FrameBudget.mdf;Integrated Security=True;Connect Timeout=30"
providerName="System.Data.SqlClient" />
</connectionStrings>
和数据目录是:
AppDomain.CurrentDomain.SetData("DataDirectory", Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + @"\FrameBudget\"));
检查此问题http://stackoverflow.com/questions/17147249/why-saving-changes-to -a-database-failures – Steve
有趣的是,即使我明确地设置了数据目录,并且当我通过应用程序进行调试并查看连接属性时,数据库显示为位于ProgramData中的正确数据库? – devonuto
并在服务器浏览器中的连接? – Steve