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
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.
I'm handling exceptions in the Application_Error() method in Global.asax but ex.Source is not giving me much. I want to know where the error occured i.e. /folderName/pageName.aspx.
Also I use lots of user controls so getting aspx name may not even be enough. Is there a way to get the name of object where the exception occured i.e. class name, user control name, etc.
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)
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??
public static List<Customer> GetCustomers(int maximumRows, int startRowIndex) { try { ... some select to database here... } catch (Exception ex) { Utils.LogError(ex); throw ex; } }
Now let's imagine that GetCustomers for some reason throws an exception. How could i catch this exception and handle it? I know i can use Application_Error, but i would like to catch this exception somehow on my page and show some friendly message to the user.
I get the following messages for whatever action I do with TabContainer and TabPanel controls.what should I do to get rid of these messages.A first chance exception of type 'System.Threading.ThreadAbortException' occurred in mscorlib.dll
An exception of type 'System.Threading.ThreadAbortException' occurred in.mscorlib.dll but was not handled in user code.
I am excuting SQL Query using Nhibernate, here is my code
public ArrayList getDocumentsForApproval(string ReleaseId) { string query = string.Format("SELECT distinct doc.Id, doc.Name as Doc, doc.url as url, suser.Name as Author, ds.name, CONVERT(VARCHAR(11), doc.DateEntered, 101) as DateEntered FROM dbo.Documents doc INNER JOIN DevelopmentSteps ds ON doc.TypeId = ds.Id INNER JOIN DocumentTrackingItems dti ON doc.Id = dti.DocumentId INNER JOIN TrackingItems ti ON dti.ItemStepId = ti.Id INNER JOIN dbo.Releases rl ON ti.ReleaseId = rl.BugTrackerName left outer join (select * from users) as suser on doc.AuthorUserid = suser.Id WHERE doc.DateEntered IS NOT NULL AND doc.DateApproved IS NULL AND rl.ID = '{0}'", ReleaseId); ISession session = NHibernateHelper.GetCurrentSession(); ArrayList document =(ArrayList) session.CreateSQLQuery(query).List(); return document; }
Exception Details:
NHibernate.QueryException: Return types of SQL query were not specified [SELECT distinct doc.Id, doc.Name as Doc, doc.url as url, suser.Name as Author, ds.name, CONVERT(VARCHAR(11), doc.DateEntered, 101)
I need values for 6 years that's 72months if (i <= 72) { values[i] += C158_Calc; } B162_Calc = Financial.IRR(ref values, 0.1) * 12; row9["Month1"] = String.Format("{0:#,###,###,###.##}", B162_Calc); Description: An unhandled exception occurred during the execution of the current web request.
How can I use ChatRoom With Master page. If Run the Code then Follwing Error generatException Details: System.ArgumentNullException: Value cannot be null.Parameter name: StringSource Error:
Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
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.
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" />).
I created a webform in 4.0 some users are saying they are getting the above error. I have windowsserver 2008, IIS 7 on it. Does anyone know how can I fix this issue?
an unhandled win32 exception occurred in w3wp.exe error occures when we run .Net application from IIS. My configuration is Windows server 2008, IIS7, .Net 2.0, and Oracle 10g.
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.
Actually I inherited this project, my job is enhance and debug this project. Just now my manager send me a log file ask me to debug, have no choose, I must settle this problem. according to the log file, I only know this bug occur in my login function,but I test in my local solution it can work well, no problem, it only appearing in live server. so I suspense it was server error, my manager ask me prove him, so any can explain to me what the log file mean? Event code: 3005
I am following the tutorial on the webmatrix site (http://www.microsoft.com/web/post/web/post/Web-Development-101-Part-6-Creating-an-Add-Data-page). Ifinished creating the AddMovie.cshtml page, but when I try to execute it, I get the following exceptionAn SqlCeParameter with ParameterName '3' is not contained by this SqlCeParameterCollection.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.
When I set Autopostback="true" in RadioButtonList and in its Items setting Enable=true, Select=false. I have select All Item as false so that when page is loaded on screen, it does not showing any value as selected (as per client requirement).Then run a application and selecting any value of this RadioButtonList, it generate an error like Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm.AutoGenerate cannot be used in a cluster.Description: An unhandled exception occurred during the execution of Please review the stack trace for more information about the error and where it originated in the code.
