The new databound controls are great, but somehow doing the simpler things has gotten harder.The code is in a function that is passed pollid. I want to use SqlDataSource to get the smallest value of answerid where pollid = the value passed for pollid. For example:
"Select top from PollAsnwers where pollid=" & PollId & " order by AnswerId"
I can set up the SqlDataSource for a data reader to fill a GridView control, but that isn't what I want to do. In fact, I can't find anything on SqlDataSource that doesn't also involve the GridView control.
I have so far:
Dim myConnection As SqlConnection
Dim myCommand As SqlCommand
Dim myReader As SqlDataReader
myConnection = New SqlConnection()
myConnection.ConnectionString = ConfigurationManager.ConnectionStrings("UserPolls").ConnectionString
myCommand = New SqlCommand()
myCommand.CommandText = "Select top from PollAsnwers where pollid=" & PollId & " order by AnswerId"
myCommand.CommandType = CommandType.Text
myCommand.Connection = myConnection
myCommand.Connection.Open()
Now assuming I have a single row of data, how do I read the value of Answerid? If I have this wrong, what should I have?
Diane
Hi all, first post, and I am desperate. I have a SqlDataSource with a Select, Update and Delete command. From what I understand, scalar variables should be read automatically from the GridView's BoundField columns when it executes a command on it. Here is my code:
I apologize for the way the code is put in, the code thing cut off a lot of the text! The problem I'm getting is, when the 'Update' button is hit, I get the error: Must declare the variable '@TeamId'.
I've tried putting "Update Parameters", that takes away the error, but the row does not update. I've browsed the internet and saw the same problems in lots of areas, but either a) none of the solutions work for me, or b) they don't really apply to my case. I'm using ASP .NET 2.0, and (obviously) C#. SQL Server database. Any help is greatly appreciated. Thanks in advance,
First I want to say thanks to the folks how have helped me over the past week or two. I'm missing a crucial piece of insight. How do I read a single piece of data from a SqlDataSource which only hold one row of data into a declared variable? string zUserName = SqlDataSource.(get the value in the row that is labeled UserName) It really doesn't matter to me whether it is an SqlDataSource or some other data container that hold the data I've selected. My goal is to be able to read some data from some predefined datasource into a declared variable. If I am approaching this problem in the wrong way any advice or article links you could give me would be grealy appreciate. Thanks, Bill
I'm trying to do Sharepoint DR with Log Shipping and every thing configured except one thing which is switch the WSS_Content (Standby /Read-Only) DB to be ready and Write.
I tried from
GUI or ALTER DATABASE [WSS_Content] SET READ_WRITE WITH NO_WAIT
I have two database files, one .mdf and one .ndf. The creator of these files has marked them readonly. I want to "attach" these files to a new database, but cannot do so because they are read-only. I get this message:
Server: Msg 3415, Level 16, State 2, Line 1 Database 'TestSprintLD2' is read-only or has read-only files and must be made writable before it can be upgraded.
What command(s) are needed to make these files read_write?
OBJECTIVE: I would like to read a text file from SQL Server 2000, read the text file content, and load its conntents in a RichTextBoxTHINGS I'VE DONE AND HAVE WORKING:1) I've successfully load a text file (ex: textFile.txt) in sql server database table column (with datatype Image) 2) I've also able to load the file using a Handler as below: using System;using System.Web;using System.Data.SqlClient;public class HandlerImage : IHttpHandler {string connectionString;public void ProcessRequest (HttpContext context) {connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["NWS_ScheduleSQL2000"].ConnectionString;int ImageID = Convert.ToInt32(context.Request.QueryString["id"]);SqlConnection myConnection = new SqlConnection(connectionString);string Command = "SELECT [Image], Image_Type FROM Images WHERE Image_Id=@Image_Id";SqlCommand cmd = new SqlCommand(Command, myConnection);cmd.Parameters.Add("@Image_Id", System.Data.SqlDbType.Int).Value = ImageID;SqlDataReader dr;myConnection.Open(); cmd.Prepare(); dr = cmd.ExecuteReader();if (dr.Read()){ //WRITE IMAGE TO THE BROWSERcontext.Response.ContentType = dr["Image_Type"].ToString();context.Response.BinaryWrite((byte[])dr["Image"]);}myConnection.Close();}public bool IsReusable {get {return false;}}}'>'> <a href='<%# "HandlerDocument.ashx?id=" + Eval("Doc_ID") %>'>File </a>- Click on this link, I'll be able to download or view the file WHAT I WANT TO DO, BUT HAVE PROBLEM:- I would like to be able to read CONTENT of this file and load it in a string as belowStreamReader SR = new StreamReader()SR = File.Open("File.txt");String contentText = SR.Readline();txtBox.text = contentText;BUT THIS ONLY WORK FOR files in the server.I would like to be able to read FILE CONTENTS from SQL Server.PLEASE HELP. I really appreciate it.
i have a database which get refreshed every day from client's data . and we need to pull heavy data from them every day as reports . so only selects happens on that database.
we do daily population of some table in some other databases from this daily refreshed DB.
will read uncommitted or NOLOCK with select queries to retrieve data faster.
there will be no dirty read as there are NO DML operation in that database so for SELECT which happens concurrently on these tables , will NOLOCK work?
Is it possible to set READ UNCOMMITTED to a user connecting to an SQL2000 server instance? I understand this can be done via a front endapplication. But what I am looking to do is to assign this to aspecific user when they login to the server via any entry application.Can this be set with a trigger?
What is the C# code I use to do this? I'm guessing it should be fairly simple, as there is only one row selected. I just need to pull out a specific field from that row and then insert that value into a different SqlDataSource.
OK, I'm using VS2003 and I'm having trouble. The page works perfectly when I created it with WebMatrix but I want to learn more about creating code behind pages and this page doesn't work. I think it has some things to do with Query builder but I can't seem to get change outside "please register". I have the table populated and it is not coming back with "login successful" or "password wrong" when I've entered correct information. Enclosed is what I've done in VS2003. Can you see where my error is? Any help would be greatly appreciated. Thanks again.
Imports System.data.sqlclient Imports System.Data Public Class login2 Inherits System.Web.UI.Page
#Region " Web Form Designer Generated Code "
'This call is required by the Web Form Designer. <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() Me.SqlConnection1 = New System.Data.SqlClient.SqlConnection Me.SqlCommand1 = New System.Data.SqlClient.SqlCommand ' 'SqlConnection1 ' Me.SqlConnection1.ConnectionString = "server=LAWORKSTATION;user id=sa;database=test;password=t3st" ' 'SqlCommand1 ' Me.SqlCommand1.CommandText = "SELECT pass FROM Customer WHERE (email = 'txtusername.text')" Me.SqlCommand1.Connection = Me.SqlConnection1
End Sub Protected WithEvents lblUsername As System.Web.UI.WebControls.Label Protected WithEvents lblPassword As System.Web.UI.WebControls.Label Protected WithEvents txtUsername As System.Web.UI.WebControls.TextBox Protected WithEvents txtPassword As System.Web.UI.WebControls.TextBox Protected WithEvents btnSubmit As System.Web.UI.WebControls.Button Protected WithEvents lblMessage As System.Web.UI.WebControls.Label Protected WithEvents SqlConnection1 As System.Data.SqlClient.SqlConnection Protected WithEvents SqlCommand1 As System.Data.SqlClient.SqlCommand
'NOTE: The following placeholder declaration is required by the Web Form Designer. 'Do not delete or move it. Private designerPlaceholderDeclaration As System.Object
Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init 'CODEGEN: This method call is required by the Web Form Designer 'Do not modify it using the code editor. InitializeComponent() End Sub
#End Region
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'Put user code to initialize the page here End Sub
Private Sub btnSubmit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSubmit.Click SqlConnection1.Open() Dim dr As SqlDataReader = SqlCommand1.ExecuteReader If dr.Read() Then If dr("password").ToString = txtPassword.Text Then lblMessage.Text = "login successful" Else lblMessage.Text = "Wrong password" End If Else lblMessage.Text = "Please register" End If dr.Close() SqlConnection1.Close() End Sub End Class
i am using visual web developer 2005 with SQL Express 2005 with VB as the code behindi have one database and three tables in itfor manipulating each table i am using separate SqlDataSource() is it sufficient to use one SqlDataSource() for manipulating all the three tables ? i am manipulating all the tables in the same page only please help me
Hi! Can You tell me how can i fix this error: Cannot open database "DiaulusSimple" requested by the login. The login failed.Login failed for user 'DIAULUSASPNET'. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: Cannot open database "DiaulusSimple" requested by the login. The login failed.Login failed for user 'DIAULUSASPNET'.Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
I am using ASP.NET, SQLServer2005, Visual Studio 2005
looking for SQL Guru who can tell me what I'm doing wrong with the following VB executable which runs on the server, I'm getting the error, "cannot delete record database is read only." Seems straight forward but I can delete records from this table remotely via an active server page (asp) no problem.
Thank in Advance
Regards
Bob Cheeseman King Kommunications <http://www.kingkom.com> bob@kingkom.com <mailto:bob@kingkom.com>
Public Sub Main()
On Error GoTo skip
Dim stDocName As String Dim stQuoteName As String Dim objAccess As Object Dim myDoCmd As Object Dim dbs As Database Dim PrimaryRS As Recordset Dim location As String
Set dbs = OpenDatabase("NVO", dbDriverNoPrompt, False, "ODBC;DATABASE=NVO2000;DSN=NVO")
Set PrimaryRS = dbs.OpenRecordset("SELECT * FROM quotation_files_temp", dbOpenDynaset) stQuoteName = PrimaryRS!QuoteNum
ok when i upload my databases that i created in VS2005, they are read only. so i though something was just funny, so i installed sql managment studio on the server and attached the databases, and when i attached them there grey with (READ-ONLY) displayed... how can i get my DB's out of read only! i tryied going through the properties of the DB through MSSQL managenet studio but that only generates an error... any ideas!
Hi Friends, I have the text file in my server which is 21 MB size. i want to insert that text file into temporary table and then based on the conditions will insert the original table.But before inserting all the records in temporary table, i got the below error message but the backend process still running(inserting into temp table) The following error was encountered:
Read Timeout The system returned: [No Error] A Timeout occurred while waiting to read data from the network. The network or server may be down or congested. Please retry your request. I am using the following code configuration section <sessionState timeout="600" /> <httpRuntime executionTimeout="110" maxRequestLength="21504" requestLengthDiskThreshold="80" useFullyQualifiedRedirectUrl="false" minFreeThreads="8" minLocalRequestFreeThreads="4" appRequestQueueLimit="5000" enableKernelOutputCache="true" enableVersionHeader="true" requireRootedSaveAsPath="true" enable="true" shutdownTimeout="90" delayNotificationTimeout="5" waitChangeNotification="0" maxWaitChangeNotification="0" enableHeaderChecking="true" sendCacheControlHeader="true" apartmentThreading="false" />
How to implement the page keep active while all the records are inserted into DB?
getting this error after publishing my site to local IIS, then trying my signup page. Failed to update database "C:INETPUBWWWROOTAPP_DATAASPNETDB.MDF" because the database is read-only. have tryed to change the attributes, still not working. have given write access to the APP_DATA folder from IIS, still not working. and i cannot delete the APP_DATA folder from IIS, it says it is being used by another process or program. how to fix this? and or delete the folder?
Hey , I have sql server 2000, and i am using Microsoft Application block. I have Transaction Like... SqlConnection conn = new SqlConnection(ASLConnectionString); conn.Open(); SqlTransaction Trans = conn.BeginTransaction(IsolationLevel.ReadUncommitted); But If i have another process that try to read the Table if that old transaction running.. it wouldn't Allow me to read the DATA. i tried Isolation level "snapshot" but that works under sql server 2005 only. so i can not use that. And i have some services that will run during day time. So if anybody have solution to read the data from table...from sql server 2000 even if another transaction is running? Please Give any guideline..Help will be appriciated.
I am work with Asp.net 2.0 C#In my application i want to use following stored procedure.I am having two dropdownlist first one is show emplyees who is having MgrID is nullif i select anyone from first dropdown list the second dropdown is show the employees name who is working below the selected personhow to i get the values from folowing stored produre.i have created the following samples table.this Stored procedure is giving my values when i am excute in Query analyserBut i dont know how to cal this Stredprocedure in my code behind and how to excute when i am select dropdown oneCREATE TABLE dbo.Emp(EmpID int PRIMARY KEY,EmpName varchar(30),MgrID int FOREIGN KEY REFERENCES Emp(EmpID))GOCREATE NONCLUSTERED INDEX NC_NU_Emp_MgrID ON dbo.Emp(MgrID)INSERT dbo.Emp SELECT 1, 'President', NULLINSERT dbo.Emp SELECT 2, 'Vice President', 1INSERT dbo.Emp SELECT 3, 'CEO', 2INSERT dbo.Emp SELECT 4, 'CTO', 2INSERT dbo.Emp SELECT 5, 'Group Project Manager', 4INSERT dbo.Emp SELECT 6, 'Project Manager 1', 5INSERT dbo.Emp SELECT 7, 'Project Manager 2', 5INSERT dbo.Emp SELECT 8, 'Team Leader 1', 6INSERT dbo.Emp SELECT 9, 'Software Engineer 1', 8INSERT dbo.Emp SELECT 10, 'Software Engineer 2', 8INSERT dbo.Emp SELECT 11, 'Test Lead 1', 6INSERT dbo.Emp SELECT 12, 'Tester 1', 11INSERT dbo.Emp SELECT 13, 'Tester 2', 11INSERT dbo.Emp SELECT 14, 'Team Leader 2', 7INSERT dbo.Emp SELECT 15, 'Software Engineer 3', 14INSERT dbo.Emp SELECT 16, 'Software Engineer 4', 14INSERT dbo.Emp SELECT 17, 'Test Lead 2', 7INSERT dbo.Emp SELECT 18, 'Tester 3', 17INSERT dbo.Emp SELECT 19, 'Tester 4', 17INSERT dbo.Emp SELECT 20, 'Tester 5', 17CREATE PROC dbo.ShowHierarchy(@Root int)ASBEGINSET NOCOUNT ONDECLARE @EmpID int, @EmpName varchar(30)SET @EmpName = (SELECT EmpName FROM dbo.Emp WHERE EmpID = @Root)PRINT REPLICATE('-', @@NESTLEVEL * 4) + @EmpNameSET @EmpID = (SELECT MIN(EmpID) FROM dbo.Emp WHERE MgrID = @Root)WHILE @EmpID IS NOT NULLBEGINEXEC dbo.ShowHierarchy @EmpIDSET @EmpID = (SELECT MIN(EmpID) FROM dbo.Emp WHERE MgrID = @Root AND EmpID > @EmpID)ENDENDOUTPUTEXEC dbo.ShowHierarchy 1GO---President------Vice President---------CEO---------CTO------------Group Project Manager---------------Project Manager 1------------------Team Leader 1---------------------Software Engineer 1---------------------Software Engineer 2------------------Test Lead 1---------------------Tester 1---------------------Tester 2---------------Project Manager 2------------------Team Leader 2---------------------Software Engineer 3---------------------Software Engineer 4------------------Test Lead 2---------------------Tester 3---------------------Tester 4---------------------Tester 5OUTPUTEXEC dbo.ShowHierarchy 5GO---Group Project Manager------Project Manager 1---------Team Leader 1------------Software Engineer 1------------Software Engineer 2---------Test Lead 1------------Tester 1------------Tester 2------Project Manager 2---------Team Leader 2------------Software Engineer 3------------Software Engineer 4---------Test Lead 2------------Tester 3------------Tester 4------------Tester 5IF YOU HAVE ANY IDEA PLZ SEND TO MERegardsBeginner
Hi everyone, I have a table with a primary key called ID. My problem is that I can NOT set the Is Identity propertiy of ID to yes! How can I enable that field? or set it to yes?
I use MS Sql DataBase file (SQL 2005 )as the conneciton in my project.When I use GridView to update my database, it fail:The error message is :Failed to update database "D:DATAASPNETHEALTH8APP_DATADBHEALTH.MDF" because the database is read-only. What is the problem with it?
Hello everyone. I am to create a sample site using the club site example. I had a problem with the IIS but now it is solved. Now i copyied the site to the IIS and it is running. But i cannot access ASPNETDB.MDF. It keep saying that the database is read only... It is not read only!!! Can any one help me?? System.Data.SqlClient.SqlException: Failed to update database "C:INETPUBWWWROOTNEOAPP_DATAASPNETDB.MDF" because the database is read-only. Thank you in advance. Iasonas
I'm optimizing a database running under SQL 7.0. Have anyone any knowledge wether setting the database to "read only" can enhance performance? The database is used only for reading, one table is updated via DTS on a hourly basis, the rest of the tables on a daily basis.
This is my first time to use SQL Server with VB, so if I've left out any relevant information, please let me know.
Here's my problem: When I try to execute the RDO AddNew method, I get an error -- "The Resultset is Read Only." When I click on the debug option, the code has stopped at the .addnew line.
When I connect to the SQL database, I use this code:
