Prevent Duplicate User Names In Database
Jul 14, 2010I am learning asp.net web development. I have create a table with the column "username". But i don't know how to prevent the Duplicate "username".
View 5 Replies
Similar Messages:
Security :: How To Use Duplicate User Names With The Same Database Over Different Domains
Dec 11, 2010We are buling a hosted ecommerce shopping cart solution and I would like to use asp.net's built-in membership provider. We dont really want to have a seperate database for each domain, we want to share the same database across mupltiple domains for different customers. Each domain is a seperate store.
My problem is that since it's a shared hosted solution people coming from different domains might use the same user name and it would show as if already existed. Is there an addional field I can use to store the domain name so basicly would be unique by username and domain name. We don't want to share information between stores.
Web Forms :: Prevent User From Adding Duplicate Records For Same Date?
Mar 25, 2013In my website their is a module in which I m retrieving the data from the student master table..
In my gridview their are 5 columns (Student Id,Student name,Roll no,and a checkbox column,Date Textbox column which is empty) in which the data is retrieved from student master table....
I m adding the date in the textbox which is out of the gridview and when i check the checkbox for each student the data is stored in another table in database with a status as present for the checked students and absent for the unchecked students...
What i want is dat when i check the student and i select the date for the student and the data is entered in new table after all this i wld not be allowed to make the attendance for the same student for the same date bt i wld be allowed to mark attendance for the same student for another date..
for example i check the checkbox for the student "Rohit" and entered the date 1/1/13 and rohit is stored with status present in the another table for date 1/1/13 and now he shld be disabled so dat i wld not be able to mark his attendance for the date 1/1/13 and prevent the duplication...Bt after dat i would be allowed to mark "Rohit's" attendance for the date 2/1/13...
means he should be disabled for the single date...
MVC :: T4 And Duplicate Controller Names In Different Areas?
May 8, 2010In my application I have controller named `Snippets` both in default area (in application root) and in my area called `Manage`. I use T4MVC and custom routes, like this:
routes.MapRoute(
"Feed",
"feed/",
[code...]
How To Prevent Duplicate Item
Jul 26, 2010i have a dropdownlist (asp.net control) and a listbox control and a Add button when the user select the item from dropdownlist and click on add button to add to the listbox.
how can i prevent the user from adding duplciate items and alert saying its already in the listbox?
UPDATE:
in my particular scenario, i have a dropdwonlist and adding the item to listbox both are asp.net controls and i am adding the items from code-behind and your solution is pure on client side, is there a way i can read the listbox and compare and alert the message?
Prevent Duplicate Postback In (C#)
Aug 27, 2010Simple one here... is there a clean way of preventing a user from double-clicking a button in a web form and thus causing duplicate events to fire?
If I had a comment form for example and the user types in "this is my comment" and clicks submit, the comment is shown below... however if they double-click, triple-click or just go nuts on the keyboard they can cause multiple versions to be posted.
Client-side I could quite easily disable the button onclick - but I prefer server-side solutions to things like this
Is there a postback timeout per viewstate that can be set for example?
C# - Prevent Duplicate Record On Run Time?
Jan 18, 2011This code cause double record... i checked my insert code for all tables and it works fine...
and this is insert code:
StoreDO store = new StoreDO();
List<BrandDO> brandList = new BrandBL().SelectBrands();
StoreBL storeBL = new StoreBL();
store.StoreName = txtStoreName.Text;
[Code]....
Configuration :: Prevent File Names From Appearing In The Url?
Nov 12, 2010I've seen in some sites where the url displays without a file name and am curious how I go about doing that.
instead of http://mydomain/myapp/index.aspx i'd like to have http://mydomain/myapp
I'm also curious how to prevent a user from copying a link's shortcut, but not necessarily disable right click altogether. The idea is that I don't want users to get to pages in the site without first going to the home page.
DataSource Controls :: Trying To Warn User If They Insert Duplicate Records In To Favourites Junction Table In Database
Mar 17, 2011i am using an ImageButton with onClick Event above a profile on a footballer.
On Click event, a logged in user on the site can save the footballer to a Junction table called FavouriteFootballer that has
a GUID UserId and FootballerId GUID as Primary Keys.
The problems is I need to warn the user if they already have the Footballer Stored as a favourite in the database
(With a Label or MessageBox PopUp) and not sure how to with the code I have.
In code behind I have the following
[code]....
Web Forms :: Prevent Duplicate Values In Listboxes
Feb 17, 2011I have 2 listboxes, when i add a item retrieved from database to Listbox1, i need to select the item and bring it to listbox2. But i do not want to have same records added again. In my case, i cannot use the codes below
[Code]....
because the text displayed on listbox1 and after transferring to listbox2 are different. So i come out with a logic which is "if listbox2 does not contain the item value in listbox1 then populate listbox2". So i tried the codes below, but it is not working as there are errors
[Code]....
Prevent Log4net To Send Duplicate Issues Via SMTP
Mar 9, 2010we have bridged our log4net with Jira using SMTP.
Now we are worried that since the site is public what could happen to the Jira server if we get alot of issues in the production environment.
We have already filtered on Critical and Fatal, but we want to see either some acumulator service on log4net or a plain filter which identifies repeating issues and prevents them from being sent via Email. Preferably without having to change the error reporting code, so a config solution would be best.
Why Does Autopostback From Button Click Duplicate Part Of URL / Prevent The Duplication?
Nov 10, 2010Example: url is [URL]
I click an asp:Button which cause a postback, but now the url comes up:
[URL]
There is nothing special in the button, just id and runat.
This only happens when I start with the "/88" in the starting url?
Why, and how can I prevent the duplication. After the postback I want the url to be the same as when started.
Web Forms :: Prevent Duplicate Entry Into Aspnet_profile Table Through CreateUserWizard?
Jul 29, 2010Is it possible to setup the CreateUserWizard to check for a duplicate entry in the aspnet_profile table (for a custom field) before the new user is created? For example, if I added a phone number field and wanted to make sure nobody else could create an account using that same phone number if a user already has an account with that phone number in the aspnet_Profile table's PropertyValuesString row?
View 10 RepliesForms Data Controls :: Delete Or Prevent Duplicate Rows In A Db?
Apr 8, 2010I have a database table that stores a list of friends. The table can store many friends and there can be duplicates, for example - John is James' and davids' friend. John will be in the table twice but will be linked to the others via another data-member. What i dont want is james to be down as johns friend twice in the table. I'm doing a small social network and this is possible by james accepting john as his friend twice. Is there anything to check if there are 2 columns identical?
View 3 RepliesHow To Get All User Names From Aspnet_users
Feb 3, 2011I am using the System.Web.ApplicationServices.AuthenticationService for Form Based Authentication.
The authenication is done by .LoginAsync based on the user roles got by .GetRolesForCurrentUserAsync.
How to query the database to get a list of all users in the system? I need the list to populate a combobox so the users can pick a contact within the system to connect to instead of simply typing the names and hoping for no typos.
User Controls :: Prevent User To Not Go Back Visited Pages After Logout?
Oct 4, 2012I have 2 master pages Default.aspx is from Site.Master and some more pages that are from Admin.Master, I have used the code that to prevent the user from going back to previous pages after logout.
Here is my code
function preventBack()
{
window.history.forward();
}
setTimeout("preventBack()", 0);
window.onunload = function () { null };
The problem I am facing Admin.
Master page i.e I have Home.aspx, AboutUs.aspx,Admin.aspx,AddItem.aspx I was unable to navigate between those pages also. how to solve this. I have tried other methods also, but still facing same problem.
User Controls :: How To Prevent User To Go Back Previous Page In Webform
Oct 21, 2015I have a login page and a dashboard page. Now user first login and then redirect to dashboard page. User press browser Back navigate button and now it's again on login page.
View 1 RepliesUser Controls :: How To Prevent User To Type URL Of Website Before Signup
Jun 16, 2015I have a signup page and Main page in my web site. i want to prevent an user to type directly the Main page URL, user should have access after signup/login.
View 1 RepliesWeb Forms :: How To Prevent Multiple User Logins Of Same User ID
Jun 16, 2015How to prevent multiple user to be logged in at a time using a user id ?
After login in to website, the same user id not login in any other system it gives alert msg User Alrdy Login.. and also i have another query If user do not click logout and directly close browser..
User Controls :: How To Prevent User To Go Back After Logout
May 7, 2015When I click signout I am redirecting to home page but when I click browser back button it is redirecting to previous page how to eliminate this......
View 1 RepliesHow To Get Database Names From Given Sql Server In LINQ
Feb 5, 2010I have DropDownList displays all server present in my network I want to populate the databse names when i changed it into another dropdown I want a LINQ query to get this.
View 3 RepliesDataSource Controls :: Take Names From The Table And Do Another Select Based On That List Of Names?
Jun 1, 2010I have been working with this database for some time. Here is the situation...
I inherited a MS SQL database that has hundreds of tables with similar data. For instance:
FordTampa_customer is a table,
ChevyAtlanta_customer is a table, etc....
All of the columns are the same...just different tables with their own ID field. All I have done...Inside of another database id is created a table called 'Customer' and added an 'Dealer ID' column along with the rest of the other columns in the other tables...
So the combination of the 'Dealer ID' and the 'ID' field are unique.....I know...its not the best way to do things...but I cannot change the old data structure because I cannot have access to it. I am give back-ups on a weekly basis, so this is all I have to work with.
All right, on to the real point of my post...
Currently, I have an application that I use to select all of the data from the 'Ford_customers','Chevy_customers',etc... and inserts them into my new main 'Customer' table. I do this by selecting the table names, bind it to an arraylist, loop through the list and execute an insert statement.
I do this in VB.NET, but I would prefer to do it in a Stored procedure of some kind....I just am not sure how to accomplish it. I use this syntax to get my list of tables:
[Code]....
I am not sure how to take those names from the table and do another select based on that list of names.
MVC :: Create Url Safe Names For Any String In A Database?
Dec 15, 2010Given a string in my database like "Computer Gadget", I am trying to achieve a url format like "http://xyz.com/products/details/computer-gadget" when a user clicks a link to the item "computer gadget" from a list view.In my list view for the products, I have Action links that read like this
[Code]....
When I hover over this link on the rendered page I get a link that looks like "http://xyz.com/products/details/computer+gadget"and the correct product detail is returned after I have url.decoded the string in my Details method. However, the returned page displays a url that looks like "http://xyz.com/products/details/computer%2bgadget"How can I get the returned url to show "computer-gadget" instead?Also when a name has "&" or "/" the server throws a Http 400 error message. I know these are unsafe values, but is there a way to work around this safely to allow the strings keep these characters?
Security :: How To Store User Names And Passwords In Web.config
Mar 8, 2010I'm trying to find out how i store user names and passwords in the web.config file. I have tried looking for documentation on this but haven't found any so far.
I see in the class library it says that the Authenticate method of the FormsAuthentication class is for use in authenticating credentials against those stored in the config file, but i don't know how to store them there to begin with. I want to store two username:password pairs in the web.config file preferably encrypted.
one of these username:password pairs i want to be hard coded. The other i want to be able to be reset with a password reset form which I will code later. I guess there maybe a method for creating a sername:password entry in the web.config which could be used with my password reset form if such a method exists. But I need to know how to hand code the username:password entries into the web.config file to begin with and to beable to create the hard coded pair.
code I need to add to my web.config file i need to add and in what section?
also can you point me in the direction of a method used for creating username:password entries in web.config
Can Sqlcommand Parameters Provide Names Of Database Columns?
Feb 24, 2010Like this: select * from foo where @nameofdbcolumnprovidedbyparam = 1? Whenever I attempt this with sqldatasource or in ado I get errors such as: Syntax error converting the nvarchar value 'foo' to a column of data type int.
View 3 Replies