static bool TryConnectToServer()
{
SqlConnection connection = new SqlConnection(ServerParameters.GetServerConnectionString());
try {
connection.Open();
connection.Close();
}
catch {
return(false);
}
finally {
connection.Dispose();
}
return(true);
}
public static bool CreateDataLayer()
{
if (!TryConnectToServer())
{
return(false);
}
IDataStore store;
try {
store = XpoDefault.GetConnectionProvider(ServerParameters.GetDBConnectionString(), AutoCreateOption.DatabaseAndSchema);
}
catch {
return(false);
}
XpoDefault.DataLayer = new SimpleDataLayer(store);
return(true);
}
public static PivotGridDemoDBDataContext GetContext()
{
PivotGridDemoDBDataContext context = new PivotGridDemoDBDataContext(ServerParameters.GetDBConnectionString());
bool databaseOK = false;
try {
databaseOK = context.DatabaseExists();
}
finally {
if (!databaseOK)
{
context.Dispose();
context = null;
}
}
return(context);
}
public static int CalculateRecordCount()
{
try {
using (SqlConnection connection = new SqlConnection(ServerParameters.GetDBConnectionString())) {
connection.Open();
using (SqlCommand command = new SqlCommand("select count(OID) as count from [dbo].[Sales]", connection)) {
return((int)command.ExecuteScalar());
}
}
} catch {
try {
new SqlConnection(ServerParameters.GetServerConnectionString()).Open();
} catch {
return(-1);
}
return(0);
}
}
public static DataSet GetDataSet(string sql)
{
string connectionString = ServerParameters.GetDBConnectionString();
SqlConnection connection = new SqlConnection(connectionString);
SqlDataAdapter adapter = new SqlDataAdapter(sql, connection);
DataSet dataSet;
try {
dataSet = new DataSet();
adapter.Fill(dataSet, "sales");
}
catch {
dataSet = null;
}
finally {
connection.Dispose();
}
return(dataSet);
}
