protected void Button1_Click(object sender, EventArgs e)
{
SqlCommand cmd;
[code]...
I am getting error that ExecuteReader: Connection property has not been initialized
I am getting error ExecuteReader: Connection property has not been initialized. below is the code i am using.
SqlDataReader oReader = new SqlDataReader();
string sSQL = @"
WITH TAB_CTE AS (
SELECT fbominum, fbompart, fparinum, flevel, fsono
FROM sodbom
WHERE fbompart= @fbompart and fsono = @fsono
UNION ALL
SELECT e.fbominum, e.fbompart, e.fparinum, e.flevel, e.fsono
FROM sodbom e
INNER JOIN TAB_CTE ecte ON ecte.fbominum = e.fparinum where e.fsono = @fsono
)
SELECT *
FROM TAB_CTE where fbompart <> @fbompart
";
SqlCommand oCommand = new SqlCommand(sSQL, this._connection);
oCommand.CommandType = System.Data.CommandType.Text;
oCommand.Parameters.Add("@fbompart", ItemSODBOM.fbompart);
oCommand.Parameters.Add("@fsono", ItemSODBOM.SONO);
oReader = oCommand.ExecuteReader();//Here I am getting error
I am getting above mentioned error when I try to run the following code:
Private strConnString As String = ConfigurationManager.ConnectionStrings("conString").ConnectionString
Private con As New SqlConnection(strConnString)
Private pID As Integer
'FIRST SECTION
Dim query As String = "query"
Dim cmd As New SqlCommand(query)
[Code] .....
The error is coming from the second SQL cmd but if I comment out the first section; the second section runs fine.
I must have made another basic error but I just can't figure out what it is.
In some posts I have read on other forums, those with database connection problems (I am thinking about Access) sometimes get the error: 'Connection property has not been initialized' which might translate as 'you have not kick-started your connection'. One reason for that, according to a number of replies I have come across, is that 'you have not set the connection property of the command object' ('you have not told command how to connect').
So would something like this:
Code:
Dim conn As New OleDbConnection
Dim OleDbConnection As New OleDbConnection
Dim cmd As New OleDbCommand
conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|myDatabase.mdb;"
conn.Open()
cmd = New OleDbCommand("SELECT strName FROM school WHERE strName=@strName", conn)
cmd.Parameters.AddWithValue("@strName", UserName.Text)
cmd.Connection = conn
cmd.ExecuteNonQuery()
conn.Close()
a) initialise the connection property and b) set the connection property of the command object?
I have one intranet based application.I have set windows authentication for it in Web.config as well as from IIS settings. While running my application through the source code, it works fine but while running from directly IIS then its giving me:
"Connection property has not been initialized"
I have some Class A, which is data-layer in my web-application, and I'm using A's methods to accomplish Db operations. It looks like this.
[code]...
In case when my .aspx page calls 2 methods of class A during the postback, my page throws
"The ConnectionString property has not been initialized" exception for second method call.
I tried to put _sqlcon initialization into constructor, but it still throws exception.
When I open an ASP.NET 3.5 project using VWD2010, I get a prompt error message,"The connection property in the web.config file is missing or incorrect.The connection string from the .dbml file has been used in its place."however, my project works successfully.
View 1 Repliespublic class DataClass{ public DataClass() { } /// <summary>
/// return rows depend on position /// if you need 10th to 20th you need to pass start=10 and end=20
/// </summary> /// <param name="start">database start position of one row</param>
/// <param name="next">database end position of one row</param>
/// <returns></returns> public string GetAjaxContent(int start, int end) {
[code].....
When I'm trying to develop the unlimited scrolling in datalist i have an error like connection string not initialized I checked and rechecked.
I am trying to setup my page with a drop down which value comes from one SQL query and item list comes from another SQL query to the same database...
what I want to do is:
read 1 line from bugs table. this line includes a projectid which will be the value of the drop down. I also read the projects table for active projects/id and load this as drop down items....
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
{
conn.Open();
using (SqlCommand bug = new SqlCommand(
"SELECT bugs.id, bugs.projectid, bugs.typeid, bugs.subtypeid, bugs.version, bugs.summary, " +
"users.email AS creator, bugs.createddate, bugs.text, bugs.closeddate, bugs.history " +
"FROM bugs INNER JOIN users ON bugs.creatorid = users.id WHERE (bugs.id = @idd)", conn))
{
bug.Parameters.AddWithValue("idd", Request.QueryString["ID"]);
try
{
SqlDataReader reader = bug.ExecuteReader();
if (reader.Read())
{
String projectid = reader[1].ToString();
// read project name list...
using(conn) using (SqlCommand projects = new SqlCommand("SELECT name, id FROM projects WHERE active=true"))
try
{
SqlDataReader pr = projects.ExecuteReader(); // This line causes the exception... what am I doing wrong?
while (pr.Read()) project.Items.Add(new ListItem(reader[0].ToString(), reader[1].ToString()));
}
catch { }
Some time i getting error below ,but i am did'nt used excutereader
ExecuteReader requires an open and available Connection. The connection's current state is closed.
This my code,
try { if (con.State != ConnectionState.Open) con.Open(); string result;
string Queryip = "ViewIp"; SqlCommand cmdip = new SqlCommand("ViewTranscation", con);
cmdip.CommandType = CommandType.StoredProcedure; cmdip.Parameters.AddWithValue("@QueryType", Queryip); cmdip.Parameters.AddWithValue("@Input1", "");
[Code] ....
I have been looking through the event viewer on our server and can see quite a few people with this error but I can't replicate this myself but it is causing issues for people viewing our website is there anyway I can "initialize" Command Text property?
UPDATE
So I have this query
datelistquery = "SELECT DISTINCT property_id, ' - Sleeps ' + cast(number_slept as varchar) as combsleeps, number_slept FROM openquery ("+Application("hpbDsrc")+",'SELECT property_id, number_slept FROM web_details WHERE part_full_flag = ''F'' AND location = ''"&Session("TenChosenLocCode")&"'' AND property_id = ''"&Session("passedPropId")&"'' AND pets_yn like ''"&Session("TenPets")&"'' AND number_slept >= ''"&Session("TenAdults")&"'' AND year_week = ''"&Session("TenHolStDateHP1")&"'' AND on_hold = ''NO'' AND booked = ''NO'' ') ORDER BY number_slept, property_id"
So should I put at the start sqlCommand.CommandText(datelistquery) = "Select Distinct...."
i am trying to call a SP from SQL Server in asp.net app, but it keep crashing every time it hit
'cmd.Connection.Open();' ,,, it give me this message
"The ConnectionString property has not been initialized "
[Code]....
[Code]....
I need to configure a property of a custom control I wrote, specifically before the control calls OnInit. If I assign it as part of the ASPX file, it naturally works, but if I instead move the assignment to different parts of the code-behind, it will throw an error for having an empty and invalid value. The following is what it looks like when functional in the ASPX page.
<MyCustomControls:SingleCascadeLookupMulti FilterString="Seventh" FilterByStatus="true" ControlMode="New" FieldName="Speciality" EnableViewState="true" ID="sclmDocuments" runat="server" TemplateName="SingleCascadeLookupMulti" />
The property in question is FilterString, which is just a simple string. It should be noted as well that the FieldName property (inheritted from the control's base class "BaseFieldControl") would also throw an error if it is not initialized, but if I set FieldName in the code behind's OnInit method, it works correctly. FilterString is not so, it won't actually be assigned. So I know that some methods for certain properties will work for setting the property's value, but it won't always work. I tried placing it in OnPreInit as well, to no avail.
I am taking a dynamic assignment approach because the functionality of this page needs to be replicated for a number of different lists, and the FilterString and FieldName properties will differ in every case. Rather than write half a dozen mostly-identical aspx pages all with the same code behind but differing just in what those two properties are, I figured it would be wiser to use the page's query string and some derived parameters to set those properties dynamically. As such, what methods are available to accomplish this task?
I'm loading a .aspx page via fancybox (ajax loading mode).I was using fancybox 1.2.6, working fine, then upgraded to fancybox 1.3.4 and IE now triggers the JS error above (in the subject of the post). Then why am I posting on ASP.net forum you might ask?!?... read on...Debugging the JS code, the error happens inside jQuery in the .html(data) function where it does a evalScript .each scripts inside data. jQuery version is 1.4.2.I'm able to resolve the problem by editing fancybox-1.3.4.js at line 265. I just use innerHTML to circuvent the evalScript that occurs inside html()... and it works:
//tmp.html( data ); <-- original code commented out where JS error occured
var tmpDiv = tmp.get(0); <-- new "plaster" kind-of fix
tmpDiv.innerHTML = data; <-- new "plaster" kind-of fix
Why I'm posting on ASP.net and not on jQuery nor fancybox groups is that I consider that the proper fix would be in the .aspx that is loaded via ajax.To summarize the problem. There is a base .aspx page that has a couples of text and buttons. When you click a button, it loads via AJAX a new .aspx page (using fancybox). You end up with two ScriptManager js code and it triggers an error when executing :
//<![CDATA[
Sys.WebForms.PageRequestManager._initialize('ctl00$ScriptManager', document.getElementById('aspnetForm'));
Sys.WebForms.PageRequestManager.getInstance()._updateControls([], [], [], 90);
[code]...
I'm using Visual Studio 2008, and my database is SQL Server 2000.
I want to add a connection to the Server Explorer in VS. The Data source is Microsoft SQL Server (SqlClient). After entering in all my information and I click Test Connection, it is successful.
But when I click OK, I get the error:
Unable to add data connection. ExecuteScalar requires an open and available connection. The connection's current state is closed.
I created the accordion control custom dll and added the dll my project reference. After adding the reference in my project, I just the drag and drop accordion control and added accordion panes, after adding the pane and clicked design view I am getting the following error. Even I added the selected index=0 properties also but I am getting same error
"Panes could not be initialized. Details: Pane could not be added to the collection. Details Object does not match target type.
I just installed sql server 2008 R2 on my computer. I am trying to connect to sql server throught my C# code and everytime I run the C# program,
I get this error "A network-related or instance-specific error occurred while establishing a connection to SQL Server.
The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) "
The connection string that I used in my web.config file is
[Code]....
I am not sure what am I doing wrong, but I followed this article below step by step and still I am getting the same error
http://blog.sqlauthority.com/2009/05/21/sql-server-fix-error-provider-named-pipes-provider-error-40-could-not-open-a-connection-to-sql-server-microsoft-sql-server-error/
My instance name is MSSQLSERVER and the server that I am using is on my local machine and it has my computer name in it.
I previously used a datasource and a connection string to connect to my database on sql server and all orked fine. The connection string was saved in my web.config file and is: ....
View 1 RepliesI am using VS2008 and oracle 10g ODP.Net. The oracle database that I used in the connection is working and tested it using sql plus.The connection string when used in a GriDView works perfectly. Now when I created a new listview control with the same connection it gives an error.Database schema could not be retrieved for this connection. Please make sure connection settings are correct and the database is online
Object reference not set to an instance of an object at VSDataObjectSupport (478,6)
I have VS 2010 professional. I am trying to open "ASP.Net Configuration" through Project -> ASP.Net Configuration.
It pops up the Notification about the ASP.Net Development Server localhost but doesn't open ASP.Net Configuration in the default browser.I clicked on the Root Url (by double clicking on the 'development server' at the right bottom from Notification Manager).
It throws following error
"An error was encountered. Please return to the previous page and try again."
Clicking on "How do i use this tool".It opened page with error.
Tool Has Timed Out
I have a masterpage that contains all the javascript and inside the content control, there is a link that calls a javascript function and I want to pass the id once it's rendered differently by the server.
<asp:TextBox ID="txtstart" runat="server" Width="20%"></asp:TextBox>
<a title="Pick Date from Calendar" onclick="calendarPicker('<% txtstart.ClientId %>');" href="javascript:void(0);">
However, I keep getting this error:
Property access must assign to the property or use its value.
How would I be able to accomplish this?
I have myConnectionString and it's working fine. In the Server Explorer, the Data Connection is even using myConnectionString to connect to the database. When I created my .dbml, it uses that same yConnectionString. However, now whenever I opened the .dbml file, pops up with the following message:The connection property in the web.config file is missing or incorrect.The connection string from the .dbml file has been used in its place.After this message is display and I clicked okay (because that's the only option), it creates myConnectionString2 in the web.config file with a different ID but no password provided. What is this all about? Why is it creating a second connection string with a different ID?
View 7 RepliesIm using two stored procedures to write and update values in a SQL DB. Im using the SQLDatasource update method. When I run the webpage on my development server everything runs fine. When I try and run the web page on my Live server I get the following error :System.Data.SqlClient.SqlException: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding This always takes 30 seconds to fail - and looking at google it seems that this is a connection timeout error.In my web.config file I have updated the connectionstring line to include a timeout setting :
connectionString="Data Source=myserver;Initial Catalog=ReportServer;Integrated Security=True;Connect
Timeout=10000"
But this hasn't helped at all.
I deployed my MVC app to IIS 7.0 and I keep getting the following error; ExecuteNonQuery requires an open and available Connection. The connection's current state is closed I dont get this with the app locally on my machine. Where could this error be occurring??
View 2 RepliesI'm receiving the following error occasionally when calling web service using a .NET 4.0 web application."The underlying connection was closed: An unexpected error occurred on a send."All of the articles I've read regarding this issue are for the Framework 1.1.Is there any solution to this issue for using .NET framework 4.0?
View 1 Replies