Unable To Throw Custom Error Handler From Within An Exception / "UnableToOpenDatabaseException Was Unhandled"

Jul 25, 2010

Why can't I throw a custom exception from within an Exception? In code below, I get error msg "UnableToOpenDatabaseException was unhandled" even though I have catch statement for it. What am I doing wrong? and how to fix it?

[Code]....

View 3 Replies


Similar Messages:

Forms Data Controls :: Throw The Exception Back To Page_Load Error: ArgumentNullException Was Unhandled By User Code

Nov 19, 2010

I'm trying to throw the exception back to Page_Load but the throw statement causes error: ArgumentNullException was unhandled by user code. How can that be fixed? Also, I can't see Label1.Text displayed on the page after the ArgumentNullException occurs because the page is not re-load. If there is no exception, it's fine to not reload the page. How can I see the Label1.Text displayed?

protected void Page_Load(object sender, EventArgs e)
{
try
{
...do something here...
}
catch (ArgumentNullException ae)
{
System.Diagnostics.Debug.Write(ae.Message);
Label1.Text = ae.Message;
Label1.Style.Add("visibility", "visible");
}
catch (Exception ex)
{
...do something here...
}
}
protected void ImageButton1_Click(object sender, ImageClickEventArgs e)............................

View 3 Replies

IIS Throw Away URL Fragment On Custom Error Pages?

Nov 5, 2010

I'm using the old 404-rewrite method on a certain site that is tied to IIS6 *. So if I enter [URL] it calls my error page like so [URL]
Except if I call the page with a fragment, like [URL] I get the same result as above. I can't find the fragment anywhere:

Request.Url
Request.Url.OriginalString
Request.UrlReferrer
Request.RawUrl
headers, server variables, etc

This has come up because I want to resolve paths created by AJAX to their server-side versions. Is there any way for me to retrieve the original path from my handler?

View 1 Replies

Getting Error - An Unhandled Exception Occurred During The Execution Of The Current Web Request?

Feb 19, 2011

I am getting System.OutOfMemoryException exception in my Web Application (ASP.NEt with C# and MySql ) hosted on IIS.

The problem is popping up randomly once every few days when i enter username and password to enter..

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]....

View 5 Replies

Why Does Custom HttpResponse Throw Exception On HttpResponse.End()

Jul 27, 2010

I'm writing some code in which I need to use my own HttpResponse object to capture the output from a method on another object that takes an HttpResponse as a parameter. The problem is, this other object (which I cannot modify) calls HttpResponse.End(), which causes an "Object reference not set to an instance of an object" exception to be thrown. What can I do about this?

Dim myStringbuilder As New StringBuilder
Dim myStringWriter As New IO.StringWriter(myStringbuilder)
Dim myResponse As New Web.HttpResponse(myStringWriter)

someObject.doStuffWithHttpResponse(myResponse) ' calls myResponse.End() and crashes

Here's some more complete information about the error, thrown from the following code in a console application:

Dim myStringbuilder As New StringBuilder
Dim myStringWriter As New IO.StringWriter(myStringbuilder)
Dim myResponse As New Web.HttpResponse(myStringWriter)
Try
myResponse.End()
Catch ex As Exception
Console.WriteLine(ex.ToString)
End Try

Here's the text of the exception:

System.NullReferenceException: Object reference not set to an instance of an object.
at System.Web.HttpResponse.End()
at ConsoleApplication1.Module1.Main() in C:Documents and Settingsjoe.userLocal SettingsApplication DataTemporary ProjectsConsoleApplication1Module1.vb:line 10

View 2 Replies

Error Rendering Control - An Unhandled Exception Has Occurred - A Relative URI Cannot Be Created

Jan 12, 2011

I have migrated .NET 1.1 code to .NET 3.5. Getting the following error in the page in design part: "Error Rendering Control- An unhandled exception has occured. A relative URI cannot be created because the 'urIstring' parameter represents an absolute URI. " It is happening for control:

<asp:hyperlink
id="hypPrint"
NavigateUrl="javascript:window.print();"
EnableViewState="False"
runat="server">Print Current Page</asp:hyperlink>
"NavigateUrl" propery is causing this error to occure.

I removed thisand tried, this error goes. But I need NavigateURL for my functionality to work.

View 3 Replies

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

May 31, 2010

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);
foreach (DataRow row1 in ds.Tables["HumanResources.Employee"].Rows)
{
Response.Write("customertitle:" + row1["Title"].ToString());
foreach (DataRow row2 in row1.GetChildRows(dr))
{
Response.Write("customer add" + row2["ModifiedDate"].ToString());
}
}

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

View 5 Replies

VS 2005 Error Index Out Of Range / Exception Was Unhandled By User Code

Jul 11, 2012

You can for example enter the length and width of the web (VS.NET2005), when it runs out of range index error exception was unhandled by user code for chieudai

Code:
public class Tinh
{
private Int32 _quanhuyen;
private String _diachiNha;
private Double _chieudai;
private Double _chieurong;
private Double _dientichDat;
}

[Code] ....

View 3 Replies

Crystal Reports :: Getting Error Unhandled Exception: CrystalDecisions.CrystalReports.Engine.InternalException?

Jun 28, 2010

When running my crystal report I got the follwoing erro r

Unhandled Exception: CrystalDecisions.CrystalReports.Engine.InternalException: E
rror in File C:DOCUME~1aliLOCALS~1Temp1 emp_8b7deeee-5769-4457-8c1f-f21fa8
c49cb5.rpt:
Failed to open a rowset. at ☻.☻N(String -, EngineExceptionErrorID 0)
at ☻.☻I(Int16 !, Int32 ")
at CrystalDecisions.CrystalReports.Engine.FormatEngine.Export(ExportRequestCo
ntext reqContext)
at CrystalDecisions.CrystalReports.Engine.FormatEngine.Export()
at CrystalDecisions.CrystalReports.Engine.ReportDocument.Export()
at CMP_BL_INC_W.Module1.Main()

Also I verified the database and no errors appeared, I use .NET 2003 and crystal report 9

View 3 Replies

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
No] = ?) OR ([Home No] IS NULL AND ? IS NULL)) AND (([Address 1] = ?) OR ([Address 1] IS NULL AND ? IS NULL)) AND (([Address 2] = ?) OR ([Address 2] IS NULL AND ? IS NULL)) 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] = ?) OR ([Other email address] IS NULL AND ? IS NULL)) AND [Visa card] = ? AND
[Ex staff] = ? AND (([ExternalDirectDialNumber] = ?) OR ([ExternalDirectDialNumber] IS NULL AND ? IS NULL)) AND (([PayrollNumber] = ?) OR ([PayrollNumber] IS NULL AND ? IS NULL)) AND [NeedstoSeekApproval] = ? AND [IsStockController] = ? AND (([Group] = ?)
OR ([Group] IS NULL AND ? IS NULL)) AND (([ContractedWeeklyHours] = ?) OR ([ContractedWeeklyHours] IS NULL AND ? IS NULL)) AND (([Grade] = ?) OR ([Grade] IS NULL AND ? IS NULL)) AND (([IP] = ?) OR ([IP] IS NULL AND ? IS NULL)) AND (([StaffTitle] = ?) OR ([StaffTitle]
IS NULL AND ? IS NULL))"

InsertCommand="INSERT INTO [tbl_mmstafflist] ([EngID], [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]) 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 ?
IS NULL)) AND (([Mobile No] = ?) OR ([Mobile No] IS NULL AND ? IS NULL)) AND (([Home No] = ?) OR ([Home No] IS NULL AND ? IS NULL)) AND (([Address 1] = ?) OR ([Address 1] IS NULL AND ? IS NULL)) AND (([Address 2] = ?) OR ([Address 2] IS NULL AND ? IS NULL))
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]
= ?) OR ([Other email address] IS NULL AND ? IS NULL)) AND [Visa card] = ? AND [Ex staff] = ? AND (([ExternalDirectDialNumber] = ?) OR ([ExternalDirectDialNumber] IS NULL AND ? IS NULL)) AND (([PayrollNumber] = ?) OR ([PayrollNumber] IS NULL AND ? IS NULL))
AND [NeedstoSeekApproval] = ? AND [IsStockController] = ? AND (([Group] = ?) OR ([Group] IS NULL AND ? IS NULL)) AND (([ContractedWeeklyHours] = ?) OR ([ContractedWeeklyHours] IS NULL AND ? IS NULL)) AND (([Grade] = ?) OR ([Grade] IS NULL AND ? IS NULL)) AND
(([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.

View 2 Replies

AJAX :: Accordion Control Showing Error - Error Rendering Control - AsssAn Unhandled Exception?

Feb 18, 2011

I am new to ASP.NET and AJAX

I want to use Accordion control in my page

but when i try to add that controlit is showing the error.

My code is

[code]....

View 1 Replies

Forms Data Controls :: Findcontrol In Gridview Error / An Unhandled Exception Occurred During The Execution

May 11, 2010

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

Public Sub btnSave_Click(ByVal sender As Object, ByVal e As System.EventArgs)Line 246: 'Dim thv As GridView = TryCast(Me.FindControl("grd1"), GridView)Line 247: Dim lbltargetdir As Label = TryCast(TryCast(Me.FindControl("grd1"), GridView).FindControl("lblparentpath"), Label)Line 248:Line 249: Directory.CreateDirectory(lbltargetdir.Text.ToString() & nm.Text)

View 14 Replies

Getting Unhandled Exception But Unable To Catch With Try Catch

Sep 14, 2011

I get this error in the browser:

Code:
Thread was being aborted.

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.Threading.ThreadAbortException: Thread was being aborted.

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:

[ThreadAbortException: Thread was being aborted.]
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +486
System.Web.ApplicationStepManager.ResumeSteps(Exception error) +501
System.Web.HttpApplication.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData) +123
System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +379

Version Information: Microsoft .NET Framework Version:2.0.50727.3053; ASP.NET Version:2.0.50727.3053

I have try{}catch(Exception ex){} in the right place:

Code:
protected void Button1_Click(object sender, EventArgs e)
{
try
{
// all processing occurs inside here
}
catch(Exception ex)
{
}
}

I even created a global.asax file and on the Application_Error event, I wrote a code that would email me the error (and i'm not getting an email regarding that error when I get the error shown above). I know for a fact that the thread is going inside the "try" statement because I send emails to myself whenever it finishes certain codes inside of it. So how come I'm getting that error in my browser instead of it being handled in my "catch" statement? I have two problems here, one, why is the exception not going to my "catch" statement, and two, why am I getting that error in the first place.

Note: my web app calls a webservice.

View 2 Replies

WCF / ASMX :: Call HTTPS Web Reference Through Another Web Reference - An Unhandled Exception Of Type Error?

Aug 6, 2010

I am trying to call web reference "A" in an application.

The web reference "A" will then call a function in another web reference "B" through HTTPS connection (require certificate).

Then I keep getting the following error:

An unhandled exception of type 'System.Web.Services.Protocols.SoapException' occurred in System.Web.Services.dll

View 3 Replies

C# - Event Log Has An Error. "An Unhandled Exception Has Occurred"

Oct 19, 2010

I am using Visual Studio 2005 and IIS 6.0.. I have this warning in the event log. I am trying to find what it is. I have never went through this exception when i am working. What can be done and where can be done to not get the exception warning again.

Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 10/13/2010 3:20:26 PM
Event time (UTC): 10/13/2010 7:20:26 PM
Event ID: fba7eb72412b4383a4c94bfcfd5c81a1

[Code]....

View 1 Replies

How To Throw And Catch Exception Handling

Oct 12, 2010

iam inserting record in three tables in a database, iam using begin trans , commit transaction and rollback,

i want to use throw method, if any value insert wrong, pls correct me, i want to throw the error and

its go to rollback

running = false;
int updaterec = DBmgr.ExecuteNonQuery(CommandType.Text, "update ASArrivedcontainer set billgen ='Y' where billgen ='y' and acontinerid in ("+SelValues+")");
if (updaterec > 0)
{
running = true;
DataSet BillContainerDetails = BillingDetails();
byte[] ContainerDetails = GenerateBill(DBmgr, sContainerIds, rcno,isGeneralRCNo, FetchContainerDetails, ModifyId,ref BillContainerDetails);
DBmgr.CreateParameters(6);
//string otherchargesId = obj.retriveSingleRecord("select top(1) ModifyId from ASOtherCharges");
DBmgr.AddParameters(0, "@InvoiceNo", "1","IN");
DBmgr.AddParameters(1, "@BillDate", DateTime.Now.ToString("yyyy/MM/dd hh:mm:ss tt"), "IN");
DBmgr.AddParameters(2, "@CustomerId", "1", "IN");
DBmgr.AddParameters(3, "@TotalAmount", "10000", "IN");
DBmgr.AddParameters(4, "@OtherChargesId", ModifyId, "IN");
DBmgr.AddParameters(5, "@ContainerDetails", ContainerDetails, "IN");
String BillNo = DBmgr.ExecuteScalar (CommandType.Text, "Insert into BillMaster(InvoiveNo,BillDate,CustomerId,TotalAmount,OtherChargesId,ContainerDetails) values (@InvoiceNo,@BillDate,@CustomerId,@TotalAmount,@OtherChargesId,@ContainerDetails)
Select @@Identity ").ToString();
if (!String.IsNullOrEmpty(BillNo))
{
running = true;
DBmgr.CreateParameters(4);
for (int i = 0; i < BillContainerDetails.Tables[0].Rows.Count; i++)
{
BillContainerDetails.Tables[0].Rows[i]["BillNo"] = BillNo;
DBmgr.AddParameters(0, "@Billno", BillContainerDetails.Tables[0].Rows[i].ItemArray[1].ToString(), "IN");
DBmgr.AddParameters(1, "@rcno", BillContainerDetails.Tables[0].Rows[i].ItemArray[2].ToString(), "IN");
DBmgr.AddParameters(2, "@acontinerid", BillContainerDetails.Tables[0].Rows[i].ItemArray[3].ToString(), "IN");
DBmgr.AddParameters(3, "@bflag", BillContainerDetails.Tables[0].Rows[i].ItemArray[4].ToString(), "IN");
//string value = BillContainerDetails.Tables[0].Rows[i].ItemArray[0].ToString(); ;
// string strsql = "insert into billcontinerdetail(billno,rcno,acontinerid,bflag) values(@billno,@rcno,@acontinerid,@bflag)";
String count = DBmgr.ExecuteScalar(CommandType.Text, "insert into billcontinerdetail(billno,rcno,acontinerid,bflag) values(@billno,@rcno,@acontinerid,@bflag)Select @@Identity").ToString();
if (count > 1)
{
running = true;
}
else
{
}
//running = true ;
//break;
}
DBmgr.CreateParameters(6);
for (int j = 0; j < BillContainerDetails.Tables[1].Rows.Count; j++)
{
DBmgr.AddParameters(0, "@billcontkey", BillContainerDetails.Tables[1].Rows[j].ItemArray[1].ToString(), "IN");
DBmgr.AddParameters(1, "@ratetypcode", BillContainerDetails.Tables[1].Rows[j].ItemArray[2].ToString(), "IN");
DBmgr.AddParameters(2, "@days", BillContainerDetails.Tables[1].Rows[j].ItemArray[3].ToString(), "IN");
DBmgr.AddParameters(3, "@amount", BillContainerDetails.Tables[1].Rows[j].ItemArray[4].ToString(), "IN");
DBmgr.AddParameters(4, "@level", BillContainerDetails.Tables[1].Rows[j].ItemArray[5].ToString(), "IN");
DBmgr.AddParameters(5, "@sflag", BillContainerDetails.Tables[1].Rows[j].ItemArray[6].ToString(), "IN");
// string strsql = "insert into billratedetail(billcontkey,ratetypcode,days,amount,level,sflag)values(@billcontkey,@ratetypcode,@days,@amount,@level,@sflag)";
String count = DBmgr.ExecuteScalar(CommandType.Text, "insert into billratedetail(billcontkey,ratetypcode,days,amount,level,sflag)values(@billcontkey,@ratetypcode,@days,@amount,@level,@sflag)Select @@identity ").ToString()
;

View 2 Replies

Set Dynamic Controls So It Doesn't Throw Exception

Jun 28, 2010

I have problem with Dynamic Controls in my Wizard Steps. In one of my Steps, I create a set of text boxes and checkboxes based on values from an XML document. Now, I initialise my dynamic controls using the OnInit method of the page, but at this stage there is no xml document until that step is reached, and of course I get null exception. How do I set my dynamic controls so it doesn't throw an null exception and be able to load any xml document when that step is reached?

View 1 Replies

Global.Asax - When Click On Datagrid Throw Exception

Nov 4, 2010

I m having a datagrid and for client side events I m using Javascript. I have few other buttons in the same page.

when I click on datagrid and select, it is working fine. After that, if I click on any other button in the Page, It is directly going to global.asax and throwing exception.

If I click directly on other buttons, they are working fine. Once I click on Datagrid and try to click on other buttons, it is throwing that exception.

View 2 Replies

How To Throw Exception If Session Is Written To In ReadOnly Mode

Sep 3, 2010

I would like to find a way to raise an exception if the Session is written to when in readonly mode. When EnableSessionState is set to "ReadOnly", values can still be put in Session, but the next request they will not be there. This seems somewhat dangerous.

One option is to create a helper class which we alway use to access session. However, this still leaves room for a developer to inadvertently use session directly, and fall into the "readonly" trap. Is there a way to create a CustomSessionStateDataStore that sits on top of the existing session code? I could not see an obvious way, and you can't inherit from System.Web.SessionState.SessionStateStoreData directly.

View 2 Replies

DataSource Controls :: EntityDataSource Throw Exception When Update With Self-Reference?

Nov 3, 2010

For a Table A defined in the DB like this:

A :{ id, selfId, name,} where selfId is a foreign key refered to Table A itself.

I generated the Entity automatically like this:

A :{ string id; A self; string name,} when i update the entity in gridview Edit/Update CommandField

i got the exception:

Object reference not set to an instance of an 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.NullReferenceException: Object reference not set to an instance of an object. Source Error:

[Code]....

Stack Trace:

[Code]....

I guess maybe this is caused by:

A is to be updated, and when the EntityDataSource construct the new A, the reference "self" is invalid at that moment. I do not want to modify my DB structure and do not want to lose the self reference, The event EntityDataSource_Updating is not triggered while the exception hit. so i can not access my entity at any time. Maybe the worst idea is deal the whole Update Procedure myself. However, is there any better workaround?

View 3 Replies

Web Forms :: Display Complete Exception Details And Error Message On Custom Error Page

Jul 2, 2012

I am trying to handle the unhandled exceptions in my project.I tried with this following code in my web.config filebut it is not at all redirecting to an error page which i have created instead of that it is throwing an exception in my code itselef. How to print the error description over therein my custom error page.

---------------------------------------------------------------------------------------------------
<sys.web>......<customErrors mode="On" defaultRedirect="~/Error.aspx"></customErrors>...</sys.web>
---------------------------------------------------------------------------------------------------

And even i tried in Global.asax page in Application_Error() method like below

 Exception ex = Server.GetLastError();Response.Redirect("~/Error.aspx?errmsg="+ex.message);Server.ClearError();

And in my Error.aspx.cs page i have placed a label and i have written code like this

protected void Page_Load(object sender, EventArgs e)         {
         Label1.Text=Request["errmsg"];
      }

But it is not getting redirected my error page and not displaying anything on it.

View 1 Replies

Web Forms :: DataSet.Fill Takes Along Time To Throw Exception When Connectionstring Wrong

Jan 18, 2010

when my website allow user many connectionstring by text to connect database anh retrieve data. But when user define very may wrong connectionstring. So Method in DAL dataset.Fill() takes a longtime to throw exception.So mywebsite will be die.

I want to method dataset.Fill() throws exception immediately when a connectionstring wrong. How can i do that?

View 2 Replies

VS 2008 - Unhandled Exception When Using PasswordRecovery

Aug 11, 2010

I'm getting an unhandled exception when using a PasswordRecovery control to reset a password and I can't find where the error is coming from or what it means. The PasswordRecovery control is hooked in to a custom MembershipProvider, which uses a custom MembershipUser class. Code: The replacements dictionary must contain only strings. 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.ArgumentException: The replacements dictionary must contain only strings.

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:

[ArgumentException: The replacements dictionary must contain only strings.]
System.Web.UI.WebControls.MailDefinition.CreateMailMessage(String recipients, IDictionary replacements, String body, Control owner) +1366
System.Web.UI.WebControls.MailDefinition.CreateMailMessage(String recipients, IDictionary replacements, Control owner) +290
System.Web.UI.WebControls.LoginUtil.CreateMailMessage(String email, String userName, String password, MailDefinition mailDefinition, String defaultBody, Control owner) +180
System.Web.UI.WebControls.LoginUtil.SendPasswordMail(String email, String userName, String password, MailDefinition mailDefinition, String defaultSubject, String defaultBody, OnSendingMailDelegate onSendingMailDelegate, OnSendMailErrorDelegate onSendMailErrorDelegate, Control owner) +367
System.Web.UI.WebControls.PasswordRecovery.AttemptSendPasswordUserNameView() +537
System.Web.UI.WebControls.PasswordRecovery.AttemptSendPassword() +55
System.Web.UI.WebControls.PasswordRecovery.OnBubbleEvent(Object source, EventArgs e) +103
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37
System.Web.UI.WebControls.Button.OnCommand(CommandEventArgs e) +118
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +166
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565

View 30 Replies

Unhandled Exception In .NET 2.0 Reset The Application?

Dec 17, 2010

My company has an application that handles shopping cart check out processes.The application is written in VB.net with the .NET 2.0 Framework.We are running IIS 6.0 as the web server and have,what we consider,excellent exception handling.For those exceptions that we can't figure out why they're happening,we use Elmah to handle them,package them up,and email them to us.We still see a fair amount of unhandled exceptions,handled by Elmah.

My question is:This is an application that is used by many people on the web at the same time.If there is an unhandled exception (handled by Elmah, mind you),does this then reset the application so that all users who aren't doing anything naughty see the application blow up in front of them when this happens?

View 2 Replies

ADO.NET :: Event Id 1309 - An Unhandled Exception Has Occurred

Oct 12, 2010

one of the sites hosted on our server is giving this error in event viewer

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
Application information:
Application domain: /LM/W3SVC/586182382/Root-1-128587971859459234
Trust level: Full
Application Virtual Path: /
Application Path: C:Inetpubconvex_crm
Machine name:
Process information:
Process ID: 6956
Process name: w3wp.exe
Account name: NT AUTHORITYNETWORK SERVICE
Exception information:
Exception type: InvalidOperationException
Exception message: 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.
Request information:
Request URL:
Request path: /Default.aspx
User host address: 192.168.23.52
User:
Is authenticated: False
Authentication Type:
Thread account name: NT AUTHORITYNETWORK SERVICE
Thread information:
Thread ID: 1
Thread account name: NT AUTHORITYNETWORK SERVICE
Is impersonating: False
Stack trace: 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 Utils.GetOne(String query) in c:Inetpubconvex_crmApp_CodeUtils.cs:line 24
at Settings.GetSettings(String keyname) in c:Inetpubconvex_crmApp_CodeSettings.cs:line 17
at _Default.Page_Load(Object sender, EventArgs e) in c:Inetpubconvex_crmDefault.aspx.cs:line 19
at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e)
at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e)
at System.Web.UI.Control.OnLoad(EventArgs e)
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Custom event details: For more information, see Help and Support Center at [URL] the site was developed in ASP.NET 2.0 what might be the problem how to resolve it??

View 5 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved