本文整理汇总了C#中NpgsqlCommand.Cancel方法的典型用法代码示例。如果您正苦于以下问题：C# NpgsqlCommand.Cancel方法的具体用法？C# NpgsqlCommand.Cancel怎么用？C# NpgsqlCommand.Cancel使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类NpgsqlCommand的用法示例。
在下文中一共展示了NpgsqlCommand.Cancel方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: GetAllUsers
//
// MembershipProvider.GetAllUsers
//
public override MembershipUserCollection GetAllUsers(int pageIndex, int pageSize, out int totalRecords)
{
NpgsqlConnection conn = new NpgsqlConnection(connectionString);
NpgsqlCommand cmd =
new NpgsqlCommand(string.Format("SELECT Count(*) FROM {0} WHERE application_name = @application_name", tableName), conn);
cmd.Parameters.Add("@application_name", NpgsqlDbType.Text, 255).Value = ApplicationName;
MembershipUserCollection users = new MembershipUserCollection();
NpgsqlDataReader reader = null;
totalRecords = 0;
try
{
conn.Open();
totalRecords = Convert.ToInt32(cmd.ExecuteScalar());
if (totalRecords <= 0)
{
return users;
}
cmd.CommandText = string.Format("SELECT UserId, user_name, Email, password_question, Comment, is_approved, is_locked_out, creation_date, last_login_date, last_activity_date, last_password_changed_date, last_locked_out_date FROM {0} WHERE application_name = @application_name ORDER BY user_name Asc", tableName);
using (reader = cmd.ExecuteReader())
{
int counter = 0;
int startIndex = pageSize*pageIndex;
int endIndex = startIndex + pageSize - 1;
while (reader.Read())
{
if (counter >= startIndex)
{
MembershipUser u = GetUserFromReader(reader);
users.Add(u);
}
if (counter >= endIndex)
{
cmd.Cancel();
}
counter++;
}
reader.Close();
}
}
catch (NpgsqlException e)
{
if (WriteExceptionsToEventLog)
{
WriteToEventLog(e, "GetAllUsers");
// use fully qualified name so as not to conflict with System.Data.ProviderException
// in System.Data.Entity assembly
throw new System.Configuration.Provider.ProviderException(exceptionMessage);
}
else
{
throw;// e;
}
}
finally
{
if (reader != null)
{
reader.Close();
}
cmd.Dispose();
conn.Close();
}
return users;
}