Asp.net - Display Specific Error Message On Custom Error Page
Sep 1, 2011
I know it's possible in asp.net to create a custom error page in a web app, by putting the following line in the web.config: <customErrors mode="RemoteOnly" defaultRedirect="frmErrorPage.aspx" />
I have had to do this for my web app, since it is clearly much tidier than letting the program bomb out with it's ugly default error page. My custom error page just has the customer's logo and a brief message saying "Error has occurred. Please return to homepage"The trouble now is that I have no way of knowing what caused the error, when a customer reports it.
Is there a way to make the actual error message appear on this custom error page too?
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Aug 24, 2010
I have a aspx page with several input fields(couple of int's and strings) and 3rd party gridview. Data is validated, and stored procedure is called from code behind to save data in DB. Gridview has capability to display error box to user which can be called from code behind. So when I catch exception I give it my error message(error message is something like:"Data can't be saved to database. Error:" & ex.message and call function that displays errorbox.
[Code]...
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Mar 6, 2012
When I deployed my project on a server, in certain circumstances, I get an error page that indicates I should create a custom error page. I was wondering how exactly I would implement this custom error page the server asks for to give me a precise and helpful message or preferably, how I would get the error to just display on the main page?This is the error message I got below
Runtime Error
Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.
Details: To enable the details of this specific error message to be viewable on remote machines, please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "Off".
<!-- Web.Config Configuration File -->
<configuration>
<system.web>
[code]....
Notes: The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect" attribute of the application's <customErrors> configuration tag to point to a custom error page URL.
<!-- Web.Config Configuration File -->
<configuration>
<system.web>
[code]....
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Jan 5, 2010
I am facing another error "An error occurred trying to load the page. Member not found. (Exception from HRESULT: 0x80020003 (DISP_E_MEMBERNOTFOUND) )" performing the following scenario:- Opened a sample VS 2010 WPF project that I receiveved from a co-worker (Project compiles, and run on his machine)I tried to open project properties (Project --> Properties)The project properties panel/window didn't open, all it had was an error symbol (red/white X) and the error message above(HRESULT: 0x80020003).I am unable to view niether the designer window nor the code window (no messages are reported) but the pane where the code/design shoud display is empty, all you can see is the background color.
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Mar 24, 2010
Here's my Application_OnError event sink in global.asax.vb:
Sub Application_OnError(ByVal sender As Object, ByVal e As EventArgs)
Dim innerMostException As Exception = getInnerMostException(Me.Context.Error)
[code].....
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May 9, 2012
In IIS 5.1, i have set the website security to Basic Authentications and i have set the page for custom error in IIS which is directing to c:est.asp file. When user try to access the website, the user name and password screen comes up and after entering the wrong password 3 times, system shows the custom error page which is fine but why does system prompt for the user name and password again (for three times)?
I don't want user login screen on custom error page. I have tried to put the custom error page on the default website and set the security to anonymous but it still shows login screen on custom error page.
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Sep 6, 2011
How do I correctly extract specific info from an sql error message number 547? [code]
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Mar 12, 2012
I've written a class for a new TabPage type.The only thing I've added is a couple variables which I can assign to the tab page in order for my app to identify which tab page is selected.This works fine on my pc, and a few others, but I have one customer who is using my app.When they run, and they open a new tab, the TABcontrols.tabpages.add(NEWTAB) errors out.I'm 100% sure that this is because it doesn't like the fact that newTAB is my custom TAB class.When I did some debugging, his pc moved past the error when I just added a default tabpage type.
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Jan 17, 2011
I have a custom validator:
<asp:CustomValidator ID="QuestionValidator" runat="server" ErrorMessage="Please select an option" ClientValidationFunction="QuestionValidator_ServerValidate" OnServerValidate="QuestionValidator_ServerValidate" ValidateEmptyText="true"></asp:CustomValidator>
I have a list of questions provided by a datalist, which I need to ensure a user selects an answer to each question. I then have my validation functions:
Protected Sub QuestionValidator_ServerValidate(ByVal source As Object, ByVal args As ServerValidateEventArgs)
Dim SelectedItem As Boolean = False
For Each c As Control In Page.Master.FindControl("form1").Controls
If TypeOf c Is RadioButton Then
[code]....
When I run the page, there is no validation and no error message. Please can you point out where I am going wrong, I'm suspicious it is at Page.Master.FindControl("form1").Controls.I have previously done such validation by looping through controls via form1.controls but this is unavailable as the page uses a form passed down via the master page.
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Aug 6, 2010
In asp.net, I can define a custom error page like this:
<configuration>
<system.web>
<customErrors mode="On">
[code]....
Now my question: If I replace, say 404.aspx with AnyHTTP.aspx,and want to get the number of the http error to generalize the page, how do I get that error numer?
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Jan 25, 2012
I'm trying to run a Visual Basic (4.0) program that has run on every flavor of Windows so far. Using Windows 7 I get the following error message:
Can't load (or register) custom control: 'comdlg32.ocx'
This file is in the same directories as it is in a WinXP machine where it runs just fine.
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Nov 10, 2010
I never got into detailed error processing too much when I played in VBA/VB6 a lot. Mostly then, if you ran into a user error (such as some input of theirs failing a validation test of some kind), you popped a MsgBox() with some error information and the critical (or warning) icon, and safely aborted out of the code
In .NET, my reading basically points to exceptions as the end-all in error handling. It looks to me that if you know a spot of code where a user can screw up, you're supposed to catch it with either try...catch blocks (for things like data conversions), or standard if...the...else constructs for other things, and then throw a new exception if needed.
Isn't throwing an exception essentially a forced crash of a program in a sense (granted, you get the option of continuing)? Or are exceptions geared specifically for things like data conversion errors and other "things that shouldn't happen", and resume use of MsgBox() and friends for minor user screwups?
Consider the case of where you have a TextBox that is only supposed to accept numeric data (or heck, just a specific set of characters). Barring some other trick that lets you restrict that field (let's just assume it's freeform, programatically), it would seem a bit of a waste to throw new exceptions everytime they type in an invalid character, or even if the error checking doesn't happen until they press a submit button (like on a webpage). Popping a MsgBox() seems more sane in that case.
So what's the straight dope on exceptions and throwing new ones on user errors? How about if your program also exposes a programmatic framework? Bad usage of one of the programmatic functions definitely seems like new exception territory to me.
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Oct 5, 2011
As the title says,I want to just have only numberic/decimal values accounted for, if it is negative or if anything else is entered into the textbox, how do I have a message display for that?
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Nov 28, 2010
Every time vs 2008 loads a projects this error message always display? What will be the effect of this in my development?Im running on Windows 7, 64bit..
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Mar 31, 2009
i want to redirect to a special page which shows detailed error message for unexpected errors.Which solution is the best for it in asp.net?
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Nov 15, 2011
I have been able to connect to the string and the database from where I need to check the username, but in my page it is not checking whether the username is correct or not.
what I am doing wrong and what I need to change to make this work, I have been on this for literally a week and still no success.[code]...
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Aug 1, 2010
I've added a database to my application with 2 fields:"ip" address and "started" that holds the number the application was started from that specific IP.I want to upload the database to my site hosted at google.sites. When the program is started it should make a connection with the following cases:
1-no connection with the database (possible no internet available) - it should display an error message
2-there is connection, the IP is not stored on the database, it addes the IP to the database and the field "started" with the value 1
3-there is connection, the IP is stored on the database, it increments the field "started" by 1
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Dec 2, 2010
I am working on a program where a user either enters "small" or "large" and then the number of toppings. Once the user has done that my program outputs the total cost of a pizza based on user input. If they enter something else besides a number in the txtNumberOfToppings I am trying to show they message box that says "Re-Enter a valid number!" Likewise I am trying to display the error message "Re-enter a number that is 0 or greater!" If they enter a negative number into the textbox. However they do not display when I do enter invalid input.
My Code
Author: Adam Fandre
Description: User enters the words "SMALL" or "LARGE" and then the number of toppings
And program then displays cost based on user input.
Comments: Finished
Option Explicit On
Option Strict On
[Code] .....
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Aug 9, 2011
I'm using Visual Studio Development Server (Visual Basic 2010) and it works fine. Now I've enabled NTLM Authorization because I want to test the website using a different user account. Now when I try to access the website I always get the following error page:
Server Error in '/' Application.
HTTP Error 403 - Forbidden.
Version Information: ASP.NET Development Server 10.0.0.0 .I'm using a test account which is a normal user within our domain. I've already set the access rights in my project folder to Full Access for this user but it does not help.
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Nov 25, 2010
I'm using windows server 2008 & IIS 7.0 to deploy the my vb.net 3.5 application. I'm successfully able to run the URL on my server.Same URL having IP address & port number configured is not working on client system.
It is showing IE default error message as "page cannot display"
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Jun 7, 2011
1.In a bank fixed deposit rates are given below.
PeriodRate
6 months8%
12 months10%
24 months12%
a.Design Suitable user interface in windows application in VB.NET to calculate interest at maturity. Use Radio buttons for period.
b.Calculate interest at maturity.
c.Calculate total amount at maturity
d.Add a clear button to clear the exiting contents
e.Display an error message when deposited amount is blank
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Aug 11, 2011
I am getting the error Parser Error Message: The server tag is not well formed. on the code line below:
<asp:HyperLink ID="imgFileType" ImageUrl="images/Icon_Pdf.gif" NavigateUrl='<%#"javascript:ViewFile('erg_", Eval("DocumentName") %>' runat="server"></asp:HyperLink>
I need the url link to be parsed as:
javascript:ViewFile('erg_Invoice_3200_QRG_Restaurant.pdf');
What am I missing in the syntax?
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May 25, 2009
I dragged and dropped a label control on my web form. But then whe I go to my VB .net code behind file, if I try and set a property on that label control, I am getting a "Declaration Expected" error message for the label I created.Yet if I do try and explicitly declare my label control, the compiler tells me that the label control is already declared.[code]
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Jun 8, 2011
i am designing sites in sharepoint 2010 and i need to use the javascript in vb.net and how to display an alert message in a web page using vb.net!?!
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Oct 12, 2011
Using a session variable in my VB.net site has been figured out just fine. I just need to get my welcome message to stay put on every page. I put the code and text box in my master page to allow the message to stay there, but my label with the user's name disappears when I click on a different page.
The session is still there because I have it set up to display the textbox to enter your code if the session is destroyed or not available for some reason.
my code is not allowing the First_Name and Last_Name of the user's session to show up? The problem is in the Page_Load but I thought I would throw in the whole master.vb file to show everything I have so far.
Partial Class MasterPage
Inherits System.Web.UI.MasterPage
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[Code].....
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Oct 26, 2010
Using ASP.Net, VB.Net When i close or exit the page, it should show the pop up message like "page closing"
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Feb 22, 2009
how to create an error message by message box to tell the user to enter a number only if they key in a character value?
I MEAN AFTER THEY PRESS THE CALCULATE BUTTON
Private Sub btnCalcFat_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalcFat.Click
Dim intFat As Integer
intFat = Integer.Parse(txtFat.Text)
lblResultDisplay.Text = txtFat.Text * 9
End Sub
My text box is call txtFat
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May 5, 2011
The program has errorhandle and write log function, however, it could not catch the error message in the program.
The following error message in Event Viewer. Error Module: oleaut32.dll ,version 5.1.2600.5512, error code: 0x000048f9
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Feb 3, 2010
I used error provider tool to display the error when the textbox is empty. when the error message is displayed immediately it is inserting the record into the database.I want to clear the error and then insert. how to take the control to textbox?
[Code]...
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Mar 31, 2011
I used error provider tool to display the error when the textbox is empty. when the error message is displayed immediately it is inserting the record into the database.I want to clear the error and then insert. how to take the control to textbox?..Imports System.Data.OleDb
Public Class Form1
Dim myConnection As OleDbConnection
Dim myCommand As OleDbCommand
[code].....
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