An Unhandled Exception Occurred During The Execution Of The Current Web Request - How To Avoid It

May 6, 2010

in local it works. when i load server, i got this error.

Using themed css files requires a header control on the page. (e.g. <head runat="server" />).

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.InvalidOperationException: Using themed css files requires a header control on the page. (e.g. <head runat="server" />).

[code]....

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I need values for 6 years that's 72months
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I am getting System.OutOfMemoryException exception in my Web Application (ASP.NEt with C# and MySql ) hosted on IIS.

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What is the actual reason of this Error and suggest somthing to kill this problem permanently..

Server Error in '/' Application.

Exception of type 'System.OutOfMemoryException' was thrown.

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.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.

Source Error:

[Code]....

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Forms Data Controls :: An Unhandled Exception Occurred During The Execution Of The Current Web Request?

Feb 17, 2010

I have a simple page with a gridview who's select and delete are enabled. It is bound to a dataset using the object data source. Clicking delete, I get

No parameterless constructor defined for this object.

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.MissingMethodException: No parameterless constructor defined for this object.

Source Error:

[Code]....

Stack Trace:

[Code]....

System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565

I have seen other articles stating the dataset doesnt make a parameterless constrcutor, trouble is I don't know how to make one.

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Access :: Update Error / An Unhandled Exception Occurred During The Execution Of The Current Web Request?

Nov 23, 2010

I have built a webform as part of my project that grabs all the data out of a particular table in an Access database on the server. I have allowed the ability to update said table via the DetailsView form however when you change the details and then click on "update" it throws back an error.

No value given for one or more required parameters.
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.OleDb.OleDbException: No value given for one or more required parameters.

Source Error:

[Code]....

Stack Trace:

[Code]....

I am not sure what has happened but it simply will not allow me to update any data. Here is a copy of the select, update and delete statement.

<asp:AccessDataSource
ID="UserDetails"
runat="server"
ConflictDetection="CompareAllValues"
DataFile="\xxx.xxx.xx.xxDatabaseCSBEDBv1.0_be.mdb"

DeleteCommand="DELETE FROM [tbl_mmstafflist] WHERE [EngID] = ? AND (([EngCode] = ?) OR ([EngCode] IS NULL AND ? IS NULL))
AND (([EngName] = ?) OR ([EngName] IS NULL AND ? IS NULL)) AND (([EmailAddress] = ?) OR ([EmailAddress] IS NULL AND ? IS NULL)) AND (([Ext No] = ?) OR ([Ext No] IS NULL AND ? IS NULL)) AND (([Mobile No] = ?) OR ([Mobile No] IS NULL AND ? IS NULL)) AND (([Home
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([Town] IS NULL AND ? IS NULL)) AND (([County] = ?) OR ([County] IS NULL AND ? IS NULL)) AND (([Postcode] = ?) OR ([Postcode] IS NULL AND ? IS NULL)) AND (([Other email address] = ?) OR ([Other email address] IS NULL AND ? IS NULL)) AND [Visa card] = ? AND
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InsertCommand="INSERT INTO [tbl_mmstafflist] ([EngID], [EngCode], [EngName], [EmailAddress], [Ext No], [Mobile No],
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[IP], [StaffTitle]) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)"

OldValuesParameterFormatString="original_{0}"
SelectCommand="SELECT * FROM [tbl_mmstafflist] where ([EngID] = @EngID)"
UpdateCommand
="UPDATE [tbl_mmstafflist] SET [EngCode] = ?, [EngName] = ?, [EmailAddress] = ?, [Ext No] = ?, [Mobile No] = ?, [Home No] = ?, [Address 1] = ?, [Address 2] = ?, [Address 3] = ?, [Town] = ?, [County]
= ?, [Postcode] = ?, [Other email address] = ?, [Visa card] = ?, [Ex staff] = ?, [ExternalDirectDialNumber] = ?, [PayrollNumber] = ?, [NeedstoSeekApproval] = ?, [IsStockController] = ?, [Group] = ?, [ContractedWeeklyHours] = ?, [Grade] = ?, [IP] = ?, [StaffTitle]
= ? WHERE [EngID] = ? AND (([EngCode] = ?) OR ([EngCode] IS NULL AND ? IS NULL)) AND (([EngName] = ?) OR ([EngName] IS NULL AND ? IS NULL)) AND (([EmailAddress] = ?) OR ([EmailAddress] IS NULL AND ? IS NULL)) AND (([Ext No] = ?) OR ([Ext No] IS NULL AND ?
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AND (([Address 3] = ?) OR ([Address 3] IS NULL AND ? IS NULL)) AND (([Town] = ?) OR ([Town] IS NULL AND ? IS NULL)) AND (([County] = ?) OR ([County] IS NULL AND ? IS NULL)) AND (([Postcode] = ?) OR ([Postcode] IS NULL AND ? IS NULL)) AND (([Other email address]
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(([IP] = ?) OR ([IP] IS NULL AND ? IS NULL)) AND (([StaffTitle] = ?) OR ([StaffTitle] IS NULL AND ? IS NULL))">

<SelectParameters>
<asp:QueryStringParameter
Name="EngID"
QueryStringField="EngID"
Type="Decimal"
/>
</SelectParameters>

The SelectParameter is used because this page is a details page that is selected from a list. I would appreciate any help that you can offer. Unfortunately Access errors are not forth coming with information.

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I have a ASP.NET website that is using an access database. In the website on the pages where the data is fetched from the database sometimes it gives the below error. When I delete the .ldb file the website starts working.

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Description:

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DataSource Controls :: How To Handle Error Unhandled Exception Occurred During The Execution

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string connectionstring = WebConfigurationManager.ConnectionStrings["AdventureWorks"].ConnectionString;
SqlConnection con = new SqlConnection(connectionstring);
DataSet ds = new DataSet();
DataRelation dr = new DataRelation("show", ds.Tables["HumanResources.Employee"].Columns["EmployeeID"], ds.Tables["HumanResources.EmployeeAddress"].Columns["EmployeeID"],false);
ds.Relations.Add(dr);
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Object reference not set to an instance of an object. 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.NullReferenceException: Object reference not set to an instance of an object. Source Error:

[Code]....

Line 31: Line 32: DataSet ds = new DataSet();Line 33: DataRelation dr = new DataRelation("show", ds.Tables["HumanResources.Employee"].Columns["EmployeeID"], ds.Tables["HumanResources.EmployeeAddress"].Columns["EmployeeID"],false);Line 34: //ds.Tables["HumanResources.Employee"].ParentRelations.Add(dr);Line 35: ds.Relations.Add(dr);
Source File: d:databaseDataset showing selected
field of 2 tables.aspx.cs Line: 33
Stack Trace:

[Code]....

[NullReferenceException: Object reference not set to an instance of an object.] dataset__with_two_tables.Page_Load(Object sender, EventArgs e) in d:databaseDataset showing selected field of 2 tables.aspx.cs:33 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +33 System.Web.UI.Control.OnLoad(EventArgs e) +99 System.Web.UI.Control.LoadRecursive() +47 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1436

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Object reference not set to an instance of an object.

Description:

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Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

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Event Type: Warning
Event Source: ASP.NET 2.0.50727.0
Event Category: Web Event
Event ID: 1309
Date: 24/06/2008
Time: 17:28:40
User: N/A
Computer:
Description:
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 24/06/2008 17:28:40
Event time (UTC): 24/06/2008 16:28:40
Event ID: 7addcd74d55746d3b73bf9905eb3edeb
Event sequence: 17
Event occurrence: 6
Event detail code: 0
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Application domain: /LM/W3SVC/586182382/Root-1-128587971859459234
Trust level: Full
Application Virtual Path: /
Application Path: C:Inetpubconvex_crm
Machine name:
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Process ID: 6956
Process name: w3wp.exe
Account name: NT AUTHORITYNETWORK SERVICE
Exception information:
Exception type: InvalidOperationException
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Request path: /Default.aspx
User host address: 192.168.23.52
User:
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Authentication Type:
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Thread information:
Thread ID: 1
Thread account name: NT AUTHORITYNETWORK SERVICE
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[Code]....

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[code]...

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my error

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Description:

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[code]....

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Event message: An unhandled exception has occurred.
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[Code]....

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click: [URL]

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