ADO.NET :: How To Use Connectionstring From Web.config
Jan 2, 2011
I have a connectionstring in my web.config <add name="HeimkinoVerbindungszeichenfolge1" connectionString="Data Source=SERVER;Initial Catalog=Heimkino;Persist Security Info=True;User ID=sa;Password=*******;"providerName="System.Data.SqlClient" />
This itself is working when using eg the SQLDataSource for a Gridview or similar.
Now I need to access this DB with different scripts and work with that database.
Eg I need to run this comand in a page_load against the DB
[Code]....
to remove old events from the database
For other pages I need something like
[Code]....
for some userauthentication things this should just create a recordset I can work with then.
Is there a way to realize this using the connectionstring in the web.config (and if so, How???)
If this will not work, how can I run such queries?
My ASP.net 4.0 framework application references that DDL and retrieves data from it. I want create a Entity Framework 4 DataContext within my DDL with the ConnectionString from the App.config. (I do not want to pass the connectionString from my ASP.net application in every single method. (I'm using ObjectDataSources))
However, this line inside my DLL throws a NullReferenceException.
how can i encrpt database password and store to Visual Studio's connectionString areaalso, i would like to know how can i set all config in config file and how the program can read.
I need to add a dropdown box to my login page that allows the user to change the connectionString to a different string, e.g. "LDAP://ActiveDirectoryDomain2.com"
In C# code behind how do change the connectionString value?
More info:
The problem I am having is that there are 4 other web.config settings call that one connectionString. For example:
I know this might be a very basic question, but maybe thats why im having problems finding the answer. Right now I'm creating database connections in my source files by doing something like this:
SqlConnection con = new SqlConnection("Data Source=...Password=...); SqlCommand cmd = new SqlCommand(String.Format("SELECT * FROM Table;"), con); con.Open(); SqlDataReader reader = cmd.ExecuteReader();
But this means that if I choose to change databases it will be a major pain in the ass. Do you guys know how to use the connection string from a web.config file instead?
I am new to asp.net and wondering if anybody can help me defining SQL Server 2005 ConnectionString in web.config file and call/read anywhere in application on any button.Kindly provide me code example.
I want to setup the connectionstring of the SqlDatasource of a dropdown list at runtime, eg. Page Load event. I have install MySQl ODBC driver, System DSN name as "MySQL_Employee" If I have an entry in Web.config:
<connectionStrings> <add name="mysqlConnection" connectionString="DSN=MySQL_Employee;UID=john;description=connection to employee database;server=empServer;database=employee;port=3306;" providerName="System.Data.Odbc"/> </connectionStrings>
I encrypted my connectionstring and store at web.config file. Then I bind Gridview with sqldatasource control, cannot bind because of sqldatasource don't know the(encrypted) connectionstring.
I want to know how to pass connection string to my .dll file. I have created one Class Library(dll) now i am using the dll of that in my application. My application is going to deploy on client side so he will going to change the connection string. Now iwant to know how will i directly access the connection string from web.config to my dll. With that i also want to know how will i pass parameters to my dll. I have already tried but it is giving me an error:the remote server returned an error 500 internal server error. Class Library Code:
[Code]....
Web Form Code: where i am using the object of my dll
can anyone tell me on how this encryption done? i know the standard way of encrypting using aspnetregiis.exe which replaces the entire connnectionString section of the web.config.
I have an MVC2 .NET 4.0 app, hosted on TFS 2008 (soon to be TFS 2010) that uses connection strings in web.config to connect to a database on another server. I need to encrypt these connection strings.
As I understand it, I can use aspnet_regiis.exe to encrypt the connectionstring portion of the web.config file, but I have to do it on the deployment machine because the encryption uses the machine name to generate the encryption key.
Now, it seems to me that this represents a problem - every time I deploy my code to the dev server won't it overwrite the web.config file, and need to be re-encrypted? This sort of manual process seems kludgy.
Is my understanding about needing to re-encrypt after deployment correct? If so, is there some way to automate this process? I don't want to forget this or get a new team member who doesn't know the process and have the connectionstring exposed to the world.
in one of the application i have been reffering connection string is stored in appsettings! till now i have been storeing the connection in <connectionstring/> element. But, what is the correct way?
So my quetion is, What is the differences between <connectionstring> and <appsettings> in web.config, are there any specific reason why i should or should not be storing connection string in appsettings? Are there any rules / guidlines provided to follow? Or is this completely the choice of the developer?
i have a class library and i want to use it in difrent web form application.
i created a linq data class and i drag and drop the table of my local database in it.
now i want to use this class library in my web form application with a database in server with difrent database name but with same tables and also the connectionString Name is the same.
in my class library i call myDataContax("MyConnectionStringName")
my question is when i use a connectionstring with the same connectionString Name as my Class library ConentionString Name but with difrent database name it will work or not?
In 3 tier architecture where to keep connection string? I have presentation layer ( webapplication) and BAL Layer ( class lib) and DAL (class lib).intially i kept in web.config which is in presentation layer....is it correct?should i keep a app.config file in DAL layer and keep my connection string in that?Where to keep connection string ?
I just deployed my database to my remote server. I am trying to create a connectionstring to the remote server and it won't work. I am using godaddy. I kept having this message: could not establish a connection to the database. Here is the connectionstring for the local server:
My website has to connect to a hosted SQL Server database. The connectiostring, incluing username and password, is stored in the web config file.I have two questions.The first is that everything I read says this must be encrypted so that it cannot be read and used by others. Well, how would that happen. My understanding of ASP.net is that all the work is carried out on the hosted server and the rendered page is then delivered to the user. How would a user be able to view my connectionstring.Secondly, I have used some msdn vb.net code to encrypt the connection string in the web config file. Following on from the first question, how can I confirm that the encryption is intact on the published web.config file.
i have some websites and one part of all websites is the same and it work with dataset i got an ide to creat a code projrct to handel that part and i use it in all websites the problem is the websites not use the same connectionstring but the connectionstring name can be same. i need to set this code project to read the connectiostring from the website web.config file.
