The existing database was created in the project itself and resides on App_Data as prompted by visual studio while adding a new sql database item to the project.
So, should i use this string :
data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\Database.mdf;User Instance=true"
Or this one
Data Source=.\SQLEXPRESS;Database=Database22;Integrated Security=SSPI;
I am not following why you should use those connection strings with EF. Take a look at this:
How to: Build an EntityConnection Connection String
Related
I am able to create a connection string to query the database from an external network however am unable to create a connection via new data source and therefore a dataset in order to populate a data grid view using the external information.
I have made it so that if pc name = name of dev pc it uses local server name to connect, otherwise it uses external IP.
Is there a way to create a connection for the external connection from the dev computer as its not possible to test connection and therefore gets error that its unable to connect to specified MySQL host
When inputting data into a data grid view a connection needs to be made by assigning that grid view a source. These sources come from the datasets created from the connection string by going to project, add new data source. Because the dataset needs to be accessible externally I need to create a new connection string through add new data source. Because the dev computer and database are on the same computer I cant create the connection string using that method and therefore cant create the dataset to populate the data grid view.
Thanks in advance
You are trying to solve the wrong problem here. Just create your data source to the local database normally. The connection string will be stored in the config file. When you deploy the application, you deploy the config file as well and you simply modify the connection string in it. How do you think developers create applications for customers that use completely different databases?
I have created an Empty website in Visual studio 2012.
I have created a class for MySQL data connection where i have written code for establishing connection and query string..
Then there is index.html file in which I have to display database table data.
How to do this?
Please provide a sample for above scenario.
I have a local database table that contains 50+ external data sources from which I can build a connection string. I am currently trying to setup SSIS to dynamically build connection strings from this table and pass them to the connection manager. I have successfully set a variable and assigned this variable to the ConnectionString expression property in Connection Manager.
I then use an OLE DB source object to copy a table from this source to our local database. The problem is that if the connection string is not set at design time I get validation errors for the OLE DB object.
If I manually set the connection string property it works fine, but that defeats the perpose of creating the dynamic connectionstring variable.
The idea here is to have the dynamic partion detect what machine it is running from and build the proper string (DEV, UAT, QA). I also do not want these connection strings in a dtsConfig file.
I took a look at this: http://www.simple-talk.com/sql/ssis/working-with-property-expressions-in-sql-server-integration-services/, but it does not have any solution for my situation.
I just found the solution after reading the first line of that error "Package Validation Error" I went to the package properties and changed DelayValidation to True.
I guess asking questions here really does help you find your own solution.
I want to modify the connection String of a Shared Data Source on a report Server. the reason is, every week we deploy new data on the server, so I am planning to deploy new database, test it and modify the datasource so that it than connect to new database, then remove the old database.
Can anyone help me in the regards.
I tried to use this post: Updating Shared data source connection string programmatically
but I can not create ReportingService2005 object as dll is missing to which this object points.
Thanks
ReportingServices2005 is not a dll, it's a webservice
The URL is formatted as below for most 2005 instances:
https://<<Report Server Name>>/ReportServer/ReportService2005.asmx
If you add the web reference the solution you have should work
An alternative to creating a custom application to do this is to use the rs.exe utility to execute the code as a script.
Scripting with the rs Utility and the Web Service
Hi I started from scrath a new vs 2010 solution.
How can I add a preexisting edmx file generated with the vs tool avoiding mess :)? (The cleanest way)
Thanks a lot!!
I am quite sure that adding the edmx file as an existing Item will work quite well. You will have to add the adequate connectionString in your config file however.
<add name="<EntityContainerName>" connectionString="metadata=res://*/<pathToEDMX>.csdl|res://*/<pathToEDMX>.ssdl|res://*/<pathToEDMX>.msl;provider=System.Data.SqlClient;provider connection string="Data Source=localhost;Initial Catalog=MyDatabase;Integrated Security=True;MultipleActiveResultSets=True"" providerName="System.Data.EntityClient" />
where pathToEDMX is the path to your edmx file in the project (for exemple Models.Model if you included the Model.edmx file in the Models directory of your project)
You will want to change the database connection string in this mmodel connection string too.
In order for this connecion string to work, the model option "Metadata Artifact Processing" must be set to "Embed in Output Assembly"
I agree with the Eilistraee, But I have another openion which is very much procedural. you can add this existing edmx file to your project. then you can open the edmx file and create database from this model(this can be done by right clicking on the entity diagram. ), when you select the proper database, it will automatically create the connection string in your app.config. Good luck.
If you want to do this, the way I found to do this is:
Open the solution that the contains the project you wish to import into.
Add the project that contains the edmx you want to import.
Copy and paste the edmx file from one project to the other.
Remove the second project and proceed.
This might be necessary: Open the edmx, adjust namespace, etc and save it.
VS 2013 and EF 6.1