internal void StartCreateQueryTalkBase()
{
Task.Factory.StartNew(() =>
{
try
{
var connBuilder = new SqlConnectionStringBuilder(ConnBuilder.ToString());
connBuilder.InitialCatalog = "master";
CreateQueryTalkBase(connBuilder);
// store QueryTalkBase connection string
connBuilder.InitialCatalog = "QueryTalkBase";
Registry.WriteQueryTalkBaseConnection(connBuilder.ToString());
}
catch (Exception ex)
{
if (!HasQueryTalkBase())
{
CurrentProcessException = ex;
}
else
{
CurrentProcessException = null;
}
}
finally
{
QueryTalkBaseCreationCompleted?.Invoke(this, new EventArgs());
}
});
}
public void ImplementEntityClient()
{
try
{
String provider = "System.Data.SqlClient";
String serverName = "localhost";
String databaseName = "dbname";
SqlConnectionStringBuilder donnBuilder = new SqlConnectionStringBuilder();
ConnBuilder.DataSource = serverName;
ConnBuilder.InitialCatalog = databaseName;
EntityConnectionStringBuilder efBuilder = new EntityConnectionStringBuilder();
efBuilder.Provider = Provider;
efBuilder.ProviderConnectionString = ConnBuilder.ToString();
efBuilder.Metadata = @"*csdl, *ssdl, *msl";
EntityConnection Connection = new EntityConnection(EfBuilder.ToString());
// EntityConnection connection = new EntityConnection(ConnectionStringHere);
// Transactions
EntityFrameworkSamplesEntities Context = new EntityFrameworkSamplesEntities();
// context does not provide database so use Context.Database object
IDbTransaction TransactionInstance = Context.Database.Connection.BeginTransaction();
try
{
// Do Something
Context.SaveChanges();
TransactionInstance.Commit();
}
catch (EntityCommandExecutionException)
{
TransactionInstance.Rollback();
}
EntityFrameworkSamplesEntities Context = new EntityFrameworkSamplesEntities();
using (TransactionScope CurrentScope = new TransactionScope())
{
try
{
Context.SaveChanges();
CurrentScope.Complete();
}
catch (EntityCommandExecutionException)
{
//Handle the exception as you normally would
//It won't be committed so transaction wise you're done
}
}
}
catch (Exception ex)
{
}
finally
{
}
}
internal bool HasQueryTalkBase()
{
try
{
d.SetConnection(connKey => new ConnectionData(ConnBuilder.ToString(), 0));
return(d
.From("sys.sysdatabases")
.Where("name", "QueryTalkBase")
.Select("name")
.Go <Row <string> >()
.Any());
}
catch
{
return(false);
}
}
internal void ShowQueryTalkBase()
{
try
{
ConnBuilder.InitialCatalog = "QueryTalkBase";
var connString = ConnBuilder.ToString();
d.SetConnection(connString);
ConnBuilder.InitialCatalog = "master"; // get back the default value
d.AsNon("Database Table Loader")
.Declare("@ccTable", d.Concatenator)
.BeginCursor(d.From("INFORMATION_SCHEMA.TABLES")
.OrderBy("TABLE_NAME")
.Select((d.Quotename("TABLE_SCHEMA")).Plus(".".L()).Plus(d.Quotename("TABLE_NAME"))).EndView())
.IntoVars("@ccTable")
.FromSelect("@ccTable")
.FetchNext()
.EndCursor()
.Test();
}
catch { }
}
