i am working on a website but theres is no error traping or error handling
now i want to implement the error handler,how can i do and what is best way to implement and most important i want to write if possible global error traping so i can write less code and more effective
I get this error on a Node click event. I added sSessionDate in the code below to load the grid but get the error. Does anyone have any ideas. here is the code:
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This issue has a few different facets so I wasn't sure what topic to post it in.I have a DB query like this:A SELECT statement with an INNER JOIN of two tables: [programs] and [program_managers] then on an aspx page ProgramManagers.aspx, I list the Project Managers, ordered by the Priority field of [programs].
I take the query and put it in a DataTable.Then I loop through the rows 1 by 1, creating Labels, etc to display the content.
Now here's the issue: Because a given Program Manager may manage more than one program, when I display this way, the Program Manager's Bio etc, gets listed as many times as their are programs that they manage.
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I am using file upload control. Mentioned the
<httpRuntime
I have this in my web.config:
<customErrors mode="RemoteOnly" defaultRedirect="/error/1" redirectMode="ResponseRedirect">
<error statusCode="404" redirect="/404.html" />
</customErrors>
I tried "RemoteOnly", "On" and "Off", but when I approach a non existing page I still get the standard 404 error page:
Server Error in Application "OTL"
Almost all the applications I worked on involve some look-up values. For example, a lot of times a list of languages ( English, French, etc...) need to be displayed on the WebForm for user to choose.
The common data structure for such look up values include an integer Id and a string as name. Since these look-up values are used so frequently, and they are unlikely to be changed. Most of time, instead of grabbing them from database, I just define a global enum in C# like this
enum Language : int { English = 1, French = 2}
I've been handling look-up values like this for years now. I knew it may not be the best way to handle them. For example, every time a new language is added to the system, somebody needs to remember to update that enum.
what are the best way to handle this error
There is already an open DataReader associated with this Command which must be closed first.
i have created my own conneciton class for the same
is there any best way ,is .net manage this things if i use any inbuild class
want my pages to handle their own 404 errors because they can suggest better alternatives for the user. Eg, a category page which produces a 404 error can suggest alternative categories etc.In iis6 this was trivial as I was able to declare statuscode 404 and everything worked out well, but in iis7 I was getting the IIs' 404 error page.Adding this:
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I get a different 404 error page but still produced by iis7 itself ("The resource you are looking for has been removed, had its name changed, or is temporarily unavailable.").
I'm looking to create a survey with a Radio Button List and a submit button and then I want to store the result in a database. Not sure how to do design the database columns or handle the click event to write the survey answer to a database.
View 3 RepliesI have to handle error related to web application. I am not sure how its works. I am thinking that I will add an error page (error.aspx) and in global.asax ,application_onError, I will redirecting the user to error page and that should be enough ! i mean it will handle error automatically.
View 4 RepliesI want put custom error page in my website so I wrote below code in web.config
<httpErrors errorMode="Custom">
<remove statusCode="404" subStatusCode="-1" />
<error statusCode="404" subStatusCode="-1" prefixLanguageFilePath="" path="error-404.aspx" responseMode="ExecuteURL" />
</httpErrors>
is it correct?
or I should put other code?
I came up with the following error when i tried to run my asp.net application.
The error is : Unable to Attach.The Binding Handle is invalid.Do you wish to continue?
If i click Yes, application is running but could not able to debug.
Then I referred to microsoft blogs and tried the following solution control Panel-->Administrative tools-->Services-->Terminal ServicesI changed startup type to "Manual" ,restarted my machine.But it's not working for me.
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:
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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
came up with the following error when i tried to run my asp.net application.The error is : Unable to Attach.The Binding Handle is invalid.Do you wish to continue?If i click Yes, application is running but could not able to debug.Then I referred to microsoft blogs and tried the following solution control Panel-->Administrative tools-->Services-->Terminal ServicesI changed startup type to "Manual" ,restarted my machine.But it's not working for me.Even i tried by also reinstalling .net2.0, then also it's not working..It will be difficult to go thro' the code if debug fails..
View 1 RepliesI want handle exceptions in update panel control with c#.
View 1 RepliesI have seen 2 methods to handle error in project. One is using try catch in every method and another is using custom page and error log file .I know both method. Which one is the best method?
View 9 RepliesI know that ASP.NET MVC has error filter attribute to handle specified error type. However, this feature cannot catch any error that occurs when application start. Therefore, I need to add some code to "Application_Error" method for handling this error like the following code.
public void Application_Error(object sender, EventArgs e)
{// At this point we have information about the error
var ctx = HttpContext.Current;
var exception = ctx.Server.GetLastError();
[code]...
I encounter "maximum length exceeded" error when I try to upload a document which is 9MB in size. I know that the issue will be solved if httpRuntime maxRequestLength and requestLengthDiskThreshold in web.config are increased but what I am looking for is how I can nicely handle the error and show the message to the user. I did try to use Application_Error event in global ascx but the event is not fired. The reason might be from Server.Transfer from DNN PageBase class's OnError method.
Specifications:
NET 3.5 SP1 (ASP.NET)
IIS 6
DotNetNuke 5.4.4(2)
I'm building the standard 3-tier ASP.NET web application but I'm struggling as to where to do certain things - specifically handling exceptions.
I've tried to have a look around on the web for some examples but can't find any which go as far as a whole project showing how everything links together.
In my data-tier I'm connecting to SQL Server and doing some stuff. I know I need to catch exceptions that could be raised as a result but I'm not sure where to do it.
From what I've read I should be doing it in the UI tier but in that case I'm not sure how to ensure that the connection to the database is closed. Is anyone able to clarify how to do this? Also if anyone knows as to where I could find an example 3-tier web application that follows best practices that would be great too.
I m trying to save files like pdf, word, excel etc... into sql express, but m getting this error in my web page:An attempt to attach an auto-named database for file C:Usersmalek.safaDocuments est vbSavingFileInDBSavingFileInDBApp_Dataaspnetdb.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
m not getting errors inside my code, just this one appearing on the web page.
how I can correct an error. I've built the MVCMusicStore tutorial here:
http://mike-ciccone.com/Store/
The first time I visit the site and attempt a database connection I get this error:
Exception Details: System.Data.SqlClient.SqlException: CREATE DATABASE permission denied in database 'master'.
But when I refresh, it all works fine. I'm at a bit of a loss. I don't believe I'm attempting to create a database, but I realise that the error may not really have anything to do with that. This is hosted at GoDaddy shared hosting. The database was created and I used an SQL script to create the tables initially and populate the data. My connection string works as I can pull data from the database, but I do have
a feeling it will be a web.config setting that will correct this.
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I'm getting the following error when attaching to my database on line. I'm not sure what the issue is as I've been able to connect in the past without any issues and there haven't been any changes to my connection string. Here is the error and my webconfig.
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I am creating a c# procedure that will log error data into a database. What I am looking for is if there is a way to dynamically get a line # of where the error occured, and the procedure name where the error occured?
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using asp.net with c#
iam retreving image from database but i want to display in image1.imageurl but it is not displaying image can you correct my code
I used visual studio 2008 and sql server 2005(for database) in my website project. After finishing my project i used publish to web option and got the files into an folder. I have installed .NET framework ,IIS, i have also set the remote connection ,firewall setting etc. But when i run i.e., In the IIS manager when i click browse it gives me the following error. Can anyone pls tell me what went wrong in this. My code works fine when run on visual studio 2008. Server Error in '/EBUSINESS' Application.
View 1 Replies