Datareader already open
WebJan 31, 2024 · There is already an open DataReader associated with this Command which must be closed first. using (SqlDataReader....) and adding MultipleActiveResultSets=True to the connection string should help. I'm using SQL Server 2014, I heard that there is a problem with SQL Server 2005, so that shouldnt be a problem.. WebThere is already an open DataReader associated with this Command which must be closed first. 6. MultiThreading error: There is already an open DataReader associated with this Connection which must be closed first. 72.
Datareader already open
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Web我有一個正在使用的簡單數據庫。 它為用戶包含兩個條目,一個是UserID為 和IsAdmin的用戶,另一個是UserID 和IsAdmin為 的用戶。數據庫中的唯一字段是字符串UserID和位IsAdmin。 我正在從數據庫中讀取以下代碼: 如果我輸入數字 作為UserID,則一切正常,但 … WebMar 15, 2024 · If your Command contains output parameters or return values, they will not be available until the DataReader is closed. Note that while a DataReader is open, the Connection is in use exclusively by that DataReader. You cannot execute any commands for the Connection, including creating another DataReader, until the original DataReader …
WebJun 21, 2024 · I have a very odd issue going on. I am getting the error There is already an open DataReader associated with this Command which must be closed first. from an API call. This error however only happens on this one server, not the main server that also … WebJul 21, 2024 · A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior.
WebOct 7, 2024 · There is already an open DataReader associated with this Command which must be closed first. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the … WebNov 10, 2010 · By default it´s not possible to have two SqlDataReader's open at the same time sharing the same SqlConnection object. You should close the first one (queryInvestorLookup) before calling the second (queryPasswordCheck). This would be good from a design and performance point of view since a recommendation for .NET is …
WebMar 17, 2024 · There is already an open DataReader associated with this Command which must be closed first. The problem is stemming from the line: foreach (var user in _userManager.Users) { I understand that basically, there is another reader open and the other hasn't been closed but I don't know how to fix this based on my code.
WebSep 15, 2024 · The DataReader is a good choice when you're retrieving large amounts of data because the data is not cached in memory. The following example illustrates using a DataReader, where reader represents a valid DataReader and command represents a … csny stardust lyricsWebAbout The Fauquier Bank. The Fauquier Bank was established on Feb. 14, 1902. Headquartered in Warrenton, VA, it has assets in the amount of $596,039,000. csny studio archives 1969I got a problem with an error that say that my datareader is already open. My code looks like this. public static Users GetByID (int ID, SqlConnection connection) { SqlCommand command = new SqlCommand ("Select Name, Email, LastLogin, FK_Role_ID from Users where ID=@id"); command.Connection = connection; command.Parameters.Add (new SqlParameter ... eagle youth sportsWebYour problem is that you are not disposing of the objects you are using. For that purpose is better to always use using structure, since it will guarantee you that everything is gonna is disposed of. Try the code below: sqlCmd.CommandText = "SELECT * FROM GlassTable"; using (dataReader = sqlCmd.ExecuteReader()) { //Code to read rows with … eagle youth footballWebAug 2, 2014 · There is already an open DataReader associated with this Connection which must be closed first. I am using Visual Studio 2010/.Net 4.0 and MySQL for this project. Basically I am trying to run another SQL statement while using data reader to do my other task. I am getting exception at line cmdInserttblProductFrance.ExecuteNonQuery(); csny southern man live videoWebOct 28, 2024 · The code works in v.2.2 but throws an exception, "InvalidOperationException: There is already an open DataReader associated with this Command which must be closed first." in v.3.0. They both are building two list of users, one of users in the target role and the other of user NOT in the target role. The idea is to add or remove users from the ... csny stands forWebMar 15, 2024 · Solution 1 The clue is in the error message: there is already an open datareader associated with this command which must be closed. You create a reader, and do not try to dispose of it before you reuse the same connection for the insert command. … csny teach