Access :: Error: System.InvalidOperationException: The ConnectionString Property Has Not Been Initialize
Oct 25, 2010I don't know fix it. My code:
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The erros is about objConn.Open() - I think...
I don't know fix it. My code:
[Code]....
The erros is about objConn.Open() - I think...
I am using static class to do every job related to Database. In this class Connection Object is static but i am creating command object in the method. I read a form post here [URL] about creating connection object local. If we do like that how can we use Connection pooling? There is an example code below.
I am creating a connection object with pooling (Validate Connection=True; Min Pool Size=10; Max Pool Size=200; Incr Pool Size=10; Decr Pool Size=5;). I am expecting to use connection pool by static connection object (this obje has a connection poll) with dynamicly created commands. Am I wrong? Sometimes i am getting "System.InvalidOperationException: Operation is not valid due to the current state of the object." error. Is it because static connectin object?
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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.
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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.
An unhandled exception of type 'System.InvalidOperationException' occurred in System.Xml.dll
View 1 RepliesI am getting the following error on my page:
System.InvalidOperationException: Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached. at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection
owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open() at _default.commentCount(Int32 ArtID) at ASP.default_aspx.__DataBind__control4(Object
sender, EventArgs e)....
I thought I had closed all the connections in my code:
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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'm trying to set up a page that will allow users to download files from a shared drive (where the file is actually sent via the page). So far this is what I have.
public partial class TestPage : System.Web.UI.Page
{
protected DirectoryInfo dir;
protected FileInfo[] files;
protected void Page_Load(object sender, EventArgs e)
{
dir = new DirectoryInfo(Server.MapPath(@"\sharedDrivePublic"));
files = dir.GetFiles();
}
}
The aspx page looks kind of like this:
<% Response.Write(System.Security.Principal.WindowsIdentity.GetCurrent().Name); %>
<ul>
<% foreach (System.IO.FileInfo f in files)
{
Response.Write("<li>" + f.FullName + "</li>");
} %>
</ul>
When I remove the erroneous parts of the code, the page tells me that the Windows Identity I'm using is my user (which has access to the drive). I don't understand what the problem could be or what it's even complaining about.
Invalid attempt to read when no data is present.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.InvalidOperationException: Invalid attempt to read when no data is present.Source Error:
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Here is my code:
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What am i doing wrong?
I am getting the following error :
DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'p2_area_name'.
Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Web.HttpException: DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'p2_area_name'.
Also, I need tp populate data from database in the Area dropdown but not able to do so..
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I have an automatic property
public int GearCount { get; set; }
when i try to initialize it like this-
Tandem t = new Tandem(GearCount = 5);
It gives an error as below
The name 'GearCount' does not exist in the current context
Whats wrong here ? Also if i do normal intantiation it works fine.
Tandem t = new Tandem();
I designed a user control. It contains a public property "CurrentValue". When I try to initialize the property using an Eval expression, a null value is assigned.
// In below code, label assignment is OK, RatingNull user control assignment get null
<asp:TemplateField>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("Difficulty") %>'
<uc1:RatingNull ID="RatingNull1" runat="server" CurrentValue='<%# Eval("Difficulty") %>' />
</ItemTemplate>
If I directly assigned a value (ie, CurrentValue="5"), user control works fine.
public partial class RatingNull : System.Web.UI.UserControl
{
private string _CurrentValue;
public string CurrentValue
{
get { return _CurrentValue; }
set { _CurrentValue = value; }
}
(...)
I am using VSTO 2010. On my aspx page, I have nested modalpopup.
But, I got error as:
Microsoft JScript runtime error: Sys.InvalidOperationException: Two components with the same id 'MainContent_ContentPlaceHolder2_EditProceduresName_ModalPopupExtender' can't be added to the application.
Since there is a no same id on page.
I am not getting, what is the cause?
I am getting the error Configuration System Failed to Initialize , i have two projects inside my solution and Listed belwo is the app.config for each of them
Project-1 Data Layer App.config
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I'm receiving the following error on this code and I can't seem to find the solution. "CS0118: 'System.Web.UI.Page.User' is a 'property' but is used like a 'type'"
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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 "
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My website (VWD 2008 Express) has been running for some time with no error.
Something has become corrupted,I am getting the error message "Error: Sys.InvalidOperationException: The path to the web service has not been set." when attempting to use the default authentication message.Nothing has changed in the script manager specification on the page.
I have a web service which tries to connect to the SQL server.It uses Integrated security = true.I get the Conn.ServerVersion threw an exception of type System.InvalidOperationException as soon as the connection object is instatiated.
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C# code:
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have a problem on my application, i am using LightBox javascript that is using prototype.js library, and when i open any pop up that is having script manager it generate this error:Microsoft JScript runtime error: Sys.InvalidOperationException: The PageRequestManager cannot be initialized more than once.I know that is because i have scriptmanager on the parent page that opened the pop up and its something relates to prototype.js but i dont know the connection!
View 3 Repliesi getting this error while adding tab control in modal pop up. please help me out .. how can i rid of this
View 5 RepliesI am developing a web application in Visualt Studio 2008. I have a data access layer that is automatically generated using Visual Studio. After publising my site to IIS and tested it for several hours, two exceptions occured:
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The connection string is stored in the data access layer in Properties.Settings and has not changed.Does anyone have a clue why these exceptions occur and how i can avoid them?
I am in trouble writing connectionstring in app.config. Actually database name contains space in its name. following is the connectionstring i want to put in app.config. but when i do the same it gives me error. how to solve this problem ?
<add name="Connection" connectionString="Driver={Microsoft Access Driver (*.mdb)};Dbq=C:Program FilesInsigniaTime & Attendence.mdb;Uid=;Pwd=admin;" />
here, database is access db having name as 'Time & Attendence.mdb'
I had to format my hard disk and reinstall the Visual Studio 2005 Enterprise and SQL 2005 Standardprograms.
While my program worked perfectly before and still works ok on my second computer, I get the following error message on the formated computer:
Parser Error Message: Type 'System.Web.UI.WebControls.Parameter' does not have a public property named 'DbType'.
Source Error:
Line 82: <asp:Parameter Name="Olho" Type="String" />
Line 83: <asp:Parameter Name="image" Type="String" />
Line 84: <asp:Parameter DbType="Date" Name="inicio" />
Line 85: <asp:Parameter DbType="Date" Name="termino" />
Line 86: <asp:Parameter Name="pageId" Type="Int32" />
Source File: /0_oserigrafico/Default.aspx Line: 84
In this case I use a datasource control for a datalist and the parameter list is being built ba the system.
The DBType is created for the smalldatetime feild
how do I add the property named 'DbType'.
I am working on a ASP.NET 2.0 application. I get the following exception sometimes when i access the web application. I believe it is related to the server where the application is hosted? Exception of type 'System.OutOfMemoryException' was thrown. 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.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown. 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. Stack Trace:
[OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.]
System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) +0
System.Reflection.Assembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) +43
System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +127
System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +142
System.Reflection.Assembly.Load(String assemblyString) +28
System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +46
[ConfigurationErrorsException: Exception of type 'System.OutOfMemoryException' was thrown.]
System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +613
System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() +203
System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +105
System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +178
System.Web.Compilation.BuildProvidersCompiler..ctor(VirtualPath configPath, Boolean supportLocalization, String outputAssemblyName) +54
System.Web.Compilation.ApplicationBuildProvider.GetGlobalAsaxBuildResult(Boolean isPrecompiledApp) +227
System.Web.Compilation.BuildManager.CompileGlobalAsax() +52
System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +337
[HttpException (0x80004005): Exception of type 'System.OutOfMemoryException' was thrown.]
System.Web.Compilation.BuildManager.ReportTopLevelCompilationException() +58
System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +512
System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters) +729
[HttpException (0x80004005): Exception of type 'System.OutOfMemoryException' was thrown.]
System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +8890735
System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +85
System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +259
What can be the reason for this error and what to check on the code or the server?
i am usingVWD 2010 andwant to create a website supported under .net 3.5. The deafault mater page has the loging pgaes already set up (.net 4.0) which is very good and helping to start. But once i changed my project to run under .Net 3.5 , i could not have the account register webpage working and getting this error : Parser Error Message: Type 'System.Web.UI.WebControls.CreateUserWizard' does not have a public property named 'LayoutTemplate'.
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