C# - What's The Best Way To Handle Multiple Actions
Jun 1, 2010
Like most web applications you have a method that gets called when you log in. There are a few things that may need to get done when logged in and over time this may increase. eg. logging, welcome emails, maintenance. Should events be used to do this or is there a better way?? I'm using C# and ASP.net MVC. Update This is already in its on Service Layer class. eg.
public void Login(User user)
{
SetAuthCookie(user);
LogLogin(user, true);
SendEmails();
}
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Dec 21, 2010
I want to develop a user control (by inheriting UserControl) which contains a button which when clicked does multiple actions. Those actions should be defined somewhere. So when I sue the control on page1.aspx the button does action X, when its used on page2.aspx and the button is clicked there, action Y is started and so on.
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Jun 29, 2010
I am getting an exception that child actions are not allowed to perform redirect actions. Although I can understand that this might is true in most situations I do believe that the framework might allow this to pass when a Child Action is calling another child action like in this example:
I have this code in my CountryController (I compacted it a bit but the main concept remains that I have a controller with Child Actions only):
[Code]....
This exception is being thrown:
Server Error in '/' Application.
Child actions are not allowed to perform redirect actions. 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: Child actions are not allowed to perform redirect actions.
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Feb 17, 2010
quick question: I have a view on my HomeController which is used to create a new 'model'. This view posts to a different controller to keep things tidy. The problem I am having is when I enter invalid details into the form, the rules I specified never seem to make it back to the original view and thus my validation messages or summary never get populated. Is there a way around this because I am using a view model with two IEnumerable lists in it.
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Dec 10, 2010
I am using Excel 2007 to connect to a SQL Server 2008 Analysis Services database.
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Oct 8, 2010
i am working on web application the problem i m facing is that if a user access saleorder form i goto database and get Max SID from saleorder table and increment in it, and when user finish i sent this id Saleorder table and other info as well as same SID to other 2 tables but the problem is that if multiple users access at samee time how can i manage SID there wil be id conflict as SID is PK in SaleOrder and FK in other two tables
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May 14, 2010
In my aspx registration page i have more then 6 item available in my list box, I am allowing multiple selection on it..I am not sure about how many items i will select each and every time. then how i have to store it into dataset and how to pass it as a mysql paramter...
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Jan 18, 2010
Is it possible to have one asp.net web application that handles requests from two domains via asp.net routing? I need one TLD domain per language version pointing to the same app.
How to set up a route that recognize, if the request is coming from domain1.de or domain2.com? How to configure the domains DNS for this to work?
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Aug 11, 2010
How do you handle multiple models in a view?. I have 2 tables. Member and MemberAddress
Member class contains Collection of MemberAddresses since a single member may have a billing and shipping address:
public class Member
{
public virtual int MemberId { get; set; }
public virtual string Username { get; set; }
public virtual bool IsActive { get; set; }
public virtual bool IsSame { get; set; }
[Code]....
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May 27, 2010
i want to know if i want to use multiple server for my application. what should i do.e.g. if i used session to store some important data so as session get stored on server if my application use one server and server get crashed then my application also get crashed. So to avoid this problem what should i do (if solution is use multiple servers then how can i do that)
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Mar 27, 2010
I recently received a project that contains multiple web applications with no MVC structure. For starters I've created a library (DLL) that will contain the main Business Logic. The problem is with Caching - If I use the current web context cache object than I might end up with duplicate caching (as the web context will be different for every application).
I'm currently thinking about implementing a simple caching mechanism with a singleton pattern that will allow the different web sites (aka different application domains) to share their "caching wisdom". I'd like to know what is the best way to solve this problem.
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Mar 24, 2010
I have a form which allows users to modify data, what's the best way to handle that so if two or more users try to make an update i get the data in there properly without overriding the new stuff. for example if name and bday are in the form, user1 changes name but not bday, same time user2 accesses the form, the original name and bday are there, user1 saves, but when user2 saves, since he had the original name value the original is saved over the first.
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Mar 30, 2010
I am trying to create a method that accepts multiple types of controls - in this case Labels and Panels. The conversion does not work because IConvertible doesn't convert these Types.
public void LocationsLink<C>(C control)
{
if (control != null)
{
WebControl ctl = (WebControl)Convert.ChangeType(control, typeof(WebControl));
Literal txt = new Literal();
HyperLink lnk = new HyperLink();
txt.Text = "If you prefer a map to the nearest facility please ";
lnk.Text = "click here";
lnk.NavigateUrl = "/content/Locations.aspx";
ctl.Controls.Add(txt);
ctl.Controls.Add(lnk);
}
}
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Mar 17, 2010
I have these line of code:
[Code]....
When i debug i get an error that says: 'System.Data.DataRowView' does not contain a property with the name 'job_id'and sometimes 'System.Data.DataRowView' does not contain a property with the name 'pub_id'I need to get the appropriate value for the selected row. GridView only output Jobs results or Publishers results, the problem is when the user clicks select button beside the record, i get the error i mentioned above.
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Jan 25, 2011
I've inherited an SQL table with a column named "product_codes." It contains 1 or more 4-digit numerals separated by commas (for example, the first record in the table has this in the "product_codes" column:0010,0810
There's a second table containing those product_codes and their corresponding names in a column called "product_name"
I'm trying to set up a FormView that will display an individual record and allow the user to update the record. But when attempting to display a record that has multiple values in the "product_codes" column I get an error, presumably because it can't map the product code to the product name.
[Code]....
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Mar 15, 2011
I've got a webform in asp.net 3.5 that has two submit buttons. Each button has a corresponding textbox controlTextBox1 and Button1TextBox2 and Button2Button1 appears first on the page.When the user is entering text in TextBox1 and presses the <enter> key, the event handler for Button1 is fired appropriately. However, I want my users to be able to click the <Enter> key while Textbox2 has the focus, and have the event handler for Button2
[Code]....
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May 13, 2010
I'm creating a site that will offer several different services (blogs, videos, images..), all under the same site.
Each service will use a separate database and all services must use the same membeship info. Users will only need one login to access all these services.
For the membership database i will use the default aspnetdb database.
There are two ways i can think of:
1) Use a join-query between two databases, each time i want to show some service records per user.
2) Create a custom membership-info table in each service's database, and keep it in sync with the master membership table in aspnetdb database.
The custom membership table will be like this:
Id - int, primary, identity
UserId - uniqueidentifier (of aspnetdb database)
What is the best way to do this in the long run, when i will have six or seven or more services ?
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Jun 9, 2010
In our IIS (v 6.0) there is one classic ASP app deployed, which has around 35 concurrent users. Now, a new ASP.NET(3.5) app needs to be deployed on the same server which will have its own 50 concurrent users. In this scenario should we create a Application Pool for this new .net app? What are other recommendations for the IIS settings in future?
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Jan 12, 2010
It should be simple; although I'm having a hard time to figure out the best way to do it. I've MVC2 pages with multiple forms on the same page having different functionalities.
What's the best way to handle this; including the MVC2 way of validation from the model?
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Mar 16, 2011
<p>Hi</p> <p>I'm a newbie in MVC but a veteran web forms developer. I really like the idea of strongly typed views but what if I have multiple objects to pass to my razor view. Would I then NOT use strongly typed views and just use the ViewBag?</p>
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Feb 5, 2011
I have a webcontrol that will exist multiple time on a page. I have some javascript (JQuery) in the control and when I have multiple controls on a page the functions get confused.I have seen plenty of stuff on why this is the case - basically my functions use set id's but i need to somehow make them relative.An example of a function ...
function showUploader() {
var img = $('#<%=ImgID.ClientID %>');
$('#<%=UploaderIFrame.ClientID %>').attr('src', '<%=ResolveUrl("~/Controls/EditableImageControl/ImageUploader/ImageUploader.aspx") %>' +[code]....
how to get references to the html elements in the web control?
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Jul 27, 2010
I have an asp.net application in which I have a parent form and in that on load I am adding sub forms dynamically having a submit image button..
When I am clicking the button of one form then I am able to read the hidden variables using request under parent form .But on clicking the second button the hidden variables of parent form are having null value although i have assign the value to them using context variables.
how can i handle mulitple form action for same page
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Oct 13, 2010
I tried it and it only returns the first table.
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Sep 8, 2010
since asp.net contains multiple threads that are executing at the same time.so if 2 threads access an object (simple or complex) that i got from the the asp.net httpcontext Cache.can't this lead to state problems on that object if these 2 theads tried to modify/read it at the same time?so what kind of precautions should i implement?for example i am thinking maybe locking the object while working with it? (wont this cause performance problems?)or maybe when i retrieve some object from the cache i should create a copy from it?
or maybe i dont need to worry about this issue at all?
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Jan 24, 2016
I have followed this article: [URL] ....
I have added textbox and checkbox in nested(child) gridview....
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