ASP.NET Archives - Domain Web Center

Cannot open database … requested by the login. The login failed.

2018/01/21 Udar Gromov 2

Cannot open database “Your_DB” requested by the login. The login failed.
Login failed for user ‘NT AUTHORITYNETWORK SERVICE’.
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.Data.SqlClient.SqlException: Cannot open database “Your_DB” requested by the login. The login failed.
Login failed for user ‘NT AUTHORITYNETWORK SERVICE’. […]

Login failed for user IIS APPPOOL\DefaultAppPool

2018/01/17 Udar Gromov 1

You are trying to jumpstart an existing ASP.NET site on a new IIS 7.5 server under Windows 7 or under Windows 2008 R2, and you are getting this error message: Cannot open database “YourDB” requested by the login. The login failed. Login failed for user ‘IIS APPPOOL\DefaultAppPool’. The problem is […]

Grow TextArea Height Along with User Input

2018/01/14 Udar Gromov 0

There are situations, when you do not want to have scroll bars inside a TextArea. Main reason not to have scroll bars inside TextArea is to make your pages more mobile-friendly. For example on iPhone Safari scroll bar inside TextArea will not even show up. Another reason not to have scroll […]

Preventing Duplicate Inserts on Browser Refresh (F5)

2018/01/10 Udar Gromov 3

You have an insert button that inserts a record into a database. If user presses refresh (F5) button immediately after inserting a new record, more and more new records continue to be written into the database. […]

Move WordPress to a new Windows Server 2012 on Amazon AWS

2017/12/11 Udar Gromov 0

This article is about moving your Windows-based WordPress and other sites (some ASP, some ASP.NET) from older to a newer instance using AMAZON cloud server instances. Procedures described here do not involve any installation. Just copy files and edit CONFIG files. We do not manipulate Registry as well (except to change […]

The EXECUTE permission was denied on the object ‘aspnet_CheckSchemaVersion’, database ‘YourDB’, schema ‘dbo’

2017/12/09 Udar Gromov 1

ASP.NET page returns this erorr: The EXECUTE permission was denied on the object ‘aspnet_CheckSchemaVersion’, database ‘YourDB’, schema ‘dbo’. (1) First try runing this command/wizard: %WinDir%\Microsoft.NET\Framework\v2.0.50727\aspnet_regsql.exe (2) If this doesn’t work, try this query: — Add user ASPNET to DB role USE YourDB GO sp_addrolemember ‘aspnet_Membership_FullAccess’, ‘ASPNET’ These steps should resolve […]

Login failed for user ‘YourPC\ASPNET’

2017/12/08 Udar Gromov 0

You are trying to access your ASP.NET page and getting this message: Cannot open database “YourDB” requested by the login. The login failed. Login failed for user ‘YourPC\ASPNET’. Use SQL Manager, navigate to Security ==> Logins. Double click on ASPNET user and go to User Mapping. Select YourDB and […]

Use DELEGATE in C# to Communicate Between Controls

2017/12/05 Udar Gromov 1

As your custom ASP.NET Web control grows, you might realize that it is time to split it into two or more controls. But how new pieces will communicate with each other? This article describes how event in one control can trigger a method in other control. [Environment: Visual Studio 2008, VS2008] […]

ASP.NET Combine Validators and Client OnClick Events

2017/12/03 Udar Gromov 1

Imagine you need to use control validators, and you also need to attach additional logic to OnClick event. These two will fight with each other, if you use conventional interface features. If you add OnClick attribute too early (say in GridView_RowEditing event) it will be overwritten by Validators. If […]

Using Ajax Toolkit Controls on Pages With Other Scripts and Master Pages

2017/11/27 Udar Gromov 0

[ASP.NET – This material was tested on Win7, W2K8 Server, IS7 and IIS 7.5 and Microsoft Visual Web Developer 2010] Install Proper Version Download and unzip proper version form http://ajaxcontroltoolkit.codeplex.com/releases/view/76976 Open the site where you intend to uses Ajax Controls, Follow generic instruction and add a new control tab inside […]

Store ASP.NET User Security Inside Your SQL Database

2017/11/21 Udar Gromov 0

How to move all ASP.NET security tables to your custom SQL database and how make it all work together.
Consists of three steps:
-01- Create security tables in your current custom database;
-02- Generate a machine key
-03- Modify web.config […]