If you wrap a call to HttpResponse.End within a try catch block, the ThreadAbortException would automatically be re-raised. I assume this is the case even if you wrap the try catch block in a try catch block.How can I accomplish the same thing? I do not have a real-world application for this.
namespace Program
{
class ReJoice
[code]...
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.
We have a asp.net application and want to implement logging. The first idea was to use the Application_Error method in the global.asax file.
The problem is that ASP.NET very often seem to throw exceptions internally that are not caused by the application and which seem not to interfer with the users normal workflow. For example we often get HTTPExceptions, UnauthorizedAccessExceptions and others caught in this method, although there is no real error in the application.
Why the error does not appear at the UI layer? I am using ExecuteScaler
BEGIN CATCH
PRINT N'The transaction is in an uncommittable state. Rolling back transaction.'
ROLLBACK TRANSACTION;
DECLARE @ErrorMessage NVARCHAR(4000);
DECLARE @ErrorSeverity INT;
DECLARE @ErrorState INT;
SELECT @ErrorMessage = ERROR_MESSAGE(),
@ErrorSeverity = ERROR_SEVERITY(),
@ErrorState = ERROR_STATE();
RAISERROR (@ErrorMessage,
@ErrorSeverity,
@ErrorState);
END CATCH
I want to know how to raise an event for fileupload control. In my project, as soon as I select a file(Image) it should show FILENAME,EXTENSION & SIZE in the labels given below.
View 2 RepliesHow to raise combobox_SelectedIndexChanged(object sender, EventArgs e) programmatically? Lets say i have method called ClearFields(). I want to call the event before i hit the end of Clearfields() method.
View 4 RepliesI'm using the CreatUserWizard control along with my MembershipProvider. It all works fine bout a year now Recently there has been a new requirement to reserve some usernames. There is no need to go in details i think. Point is that i want to manually raise the same error the control raises when a user tries to register a username that has already been registered (i.e. DuplicateUserName) so the situation is handled the same way as when username really is a duplicate in aspMembership. Have tried differnet things with no luck, what would you advise me doing?
View 2 Repliesi need when i select a image in fileupload control then path should store in a textbox. actually in gridview i have a image control ,one fileupload control and a textbox control. so when user trying to edit one image and click Edit button from gridview and chose a image from fileupload control then path should be store in relative textbox control.below is my design.
[Code]....
I have a simple Tabcontainer with 3 tabpanels. I want to load some content to the different tabs the first time they are clicked (selecting the tabs). I have tried using Protected Sub TabContainer1_ActiveTabChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles TabContainer1.ActiveTabChanged but that only works, WHEN there has been changes to the content.
So my question is: How do I raise a server side event like loading a droplist when the tab is clicked?
I have written a stored proc for raise error.Whenever a customer checks for a record in the DB that doesn't exist in the DB he has to get an error displayed.I have written a stored proc help me on it i know it is wrong suggest me the correct one.
[Code]....
generally we can handle validators on Button click or when the control is left empty. I am having my requirement as follows
I am having a text box and a drop down where the drop down list is binded with database values as follows
mlocal_strStoredProcName = USADAO.StoredProcNames.PayFrequency_uspPayFrequencySelect;
oEmployee.Select(out mlocal_ds, mlocal_strStoredProcName);
ddlPaymentType.DataSource = mlocal_ds;[code]....
What i need is if the text box is left empty on ddlPaymentType_SelectedIndexChanged i would like to fire the validator
Why with LinkButton doesn't work postback with IE7 and work with FW3.+ when site work on IIS7?
View 3 Repliestryisng something like this:
[Code]....
the code raise an error which the translated version is something like "the lenght of the data to decrypt is not valid" here is my Decrypt function:
[Code]....
had a data table in which i made one column as primary key..the data table is binded to stored proc output..now the datatable is not allowing same values for primary key column,functionality is fine..but the exception is not raised ..simply row is not getting added to grid view..but i want an exception to be raised..how to do that??
View 1 RepliesI have a LinkButton inside a GridView (via an TemplateField). No matter what I try, the LinkButton will not invoke its event handler. I have tried both traditional event handler ("OnClick")A OnRowCommand event handler at the GridView level.In both cases, I've debugged and it doesn't even catch the event handler.
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton Text="Cancel" ID="DeleteButton" CausesValidation="false" OnClick="CancelThis" runat="server" />
[code]...
I have a login.ascx control with three controls (LoginName, Password and btnLogin) , I want to rase a click event on this button from .aspx page because some restriction is there so that I am unable to write any code on .ascx page.I am bale to put loginName and password on .ascx by using query string but unale to raise event.
[Code]....
Just for kicks, how do you say, wire up an ASP button to purposely throw an Application_Error exception in the global.asax file?
lets say you wanted to test the functionality of the error handling and what is doing..and you don't have a real error to do it. what is the easiest way just raise this event?
How to raise the SelectedIndexChanged event of an asp.net List control in a codebehind using C#?
View 3 RepliesI need to do something when the user logs out. I have used ASP.NET Forms Authentication.
What should I override or implement?
I have an ASP.NET login control and I want to empty the basket-viewer when the customer logs out of the system.
I got a problem when raise an event from a button in web user control, it seems not work!!!
I dunno how to fix it, is there any1 got the same problem?
This is my format file
8.0
5
1 SQLCHAR 0 0 "," 5 LastName ""
2 SQLCHAR 0 0 "," 4 LastName ""
3 SQLCHAR 0 0 "," 2 DOB ""
4 SQLCHAR 0 0 "," 3 AdmissionNo ""
5 SQLCHAR 0 0 "
" 7 Reg ""
This is my Sp
begin
BULK
INSERT tblChild
FROM 'F:ArruniArruniRaj-NathanSchool-DocPupils.txt'
with
(
formatfile = 'c:format.txt'
)
end
This is my table structure.......
I have a user control that contains a repeater. We have added some paging and sorting into the user control and it all works well.
What I need now is a nice way to catch the OnItemDataBound event of the inner repeater and then bubble it up to be accessible directly from the user control from within the page.
We have tried catching it and then declaring it in the user control but it just won't work.
I have a login.ascx control with three controls (LoginName, Password and A Button) , I want to rase a click event on this button from .aspx page because some restriction is there so that I am unable to write any code on .ascx page.
I have assigned value on login name and password from .aspx onload events. but I an facing problem while rasing event on button.
I am showing code that I have written on .aspx page that I have putten onload section.
[Code]....
[Code]....
[Code]....
I have user control that inherits a base control class and these user controls are loaded using the LoadControl method, I can't seem to figure out how to raise events from user controls to the page that are dynamically loaded this way. Here is the delegate and event in the base user control class.
public delegate void SomeChangeEventHandler(object sender
, SomeChangeEventArgs e);
public event SomeChangeEventHandler SomeChangeEvent;
public virtual void OnSomeChanged(SomeChangeEventArgs e)
{
if (SomeChangeEvent != null)
{
SomeChangeEvent(this, e);
}
}
I am using the following code to export a datset to excel sheet.
[Code]....
Problem is that its not raising file download and hence no export is taking place.The same code works fine in a normal method.But with the webmethod its not working.