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C# - Casting error

Posted on 2013-05-21
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Last Modified: 2013-05-22
Hello Experts,
I am trying to get SQLConnection from Entityconnection:

http://justgeeks.blogspot.com/2009/11/getting-sqlconnection-from.html

I have this namespace:
using System.Data.EntityClient;

I am getting this error on Casting:


 private string GetADOConnectionString()
        {
            EcommerceDataConnection ctx = new EcommerceDataConnection();
            System.Data.Common.DbConnection dbConn= ctx.Database.Connection;
            EntityConnection ec = (EntityConnection)dbConn;  
            System.Data.SqlClient.SqlConnection sc = (System.Data.SqlClient.SqlConnection)ec.StoreConnection;
            string adoConnStr = sc.ConnectionString;
            return adoConnStr;

        }


-------------------

Unable to cast object of type 'System.Data.SqlClient.SqlConnection' to type 'System.Data.EntityClient.EntityConnection'.


Error:
Capture-Error.PNG
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Question by:mani_sai
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2 Comments
 
LVL 30

Accepted Solution

by:
anarki_jimbel earned 2000 total points
ID: 39185821
Your code is quite different from the source you are referring to.

I don't know API for  EcommerceDataConnection . But the source of an error is obvious:
you are trying to cast DBConnection to EntityConnection which is wrong:

EntityConnection ec = (EntityConnection)dbConn;  

Open in new window


May be something like:

            EcommerceDataConnection ctx = new EcommerceDataConnection();
            System.Data.Common.DbConnection dbConn= ctx.Database.Connection;
            System.Data.SqlClient.SqlConnection sc = (System.Data.SqlClient.SqlConnection)dbConn;

Open in new window

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LVL 8

Author Closing Comment

by:mani_sai
ID: 39189170
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