public static DbProviderFactory GetFactory(DataRow providerRow)
{
ADP.CheckArgumentNull(providerRow, "providerRow");
DataColumn column = providerRow.Table.Columns["AssemblyQualifiedName"];
if (column != null)
{
string str = providerRow[column] as string;
if (!ADP.IsEmpty(str))
{
Type type = Type.GetType(str);
if (null == type)
{
throw ADP.ConfigProviderNotInstalled();
}
FieldInfo field = type.GetField("Instance", BindingFlags.Public | BindingFlags.Static | BindingFlags.DeclaredOnly);
if ((null != field) && field.FieldType.IsSubclassOf(typeof(DbProviderFactory)))
{
object obj2 = field.GetValue(null);
if (obj2 != null)
{
return((DbProviderFactory)obj2);
}
}
throw ADP.ConfigProviderInvalid();
}
}
throw ADP.ConfigProviderMissing();
}
static public DbProviderFactory GetFactory(DataRow providerRow)
{
ADP.CheckArgumentNull(providerRow, "providerRow");
// fail with ConfigProviderMissing rather than ColumnNotInTheTable exception
DataColumn column = providerRow.Table.Columns[AssemblyQualifiedName];
if (null != column)
{
// column value may not be a string
string assemblyQualifiedName = providerRow[column] as string;
if (!ADP.IsEmpty(assemblyQualifiedName))
{
// FXCop is concerned about the following line call to Get Type,
// If this code is deemed safe during our security review we should add this warning to our exclusion list.
// FXCop Message, pertaining to the call to GetType.
//
// Secure late-binding methods,System.Data.dll!System.Data.Common.DbProviderFactories.GetFactory(System.Data.DataRow):System.Data.Common.DbProviderFactory,
Type providerType = Type.GetType(assemblyQualifiedName);
if (null != providerType)
{
System.Reflection.FieldInfo providerInstance = providerType.GetField(Instance, System.Reflection.BindingFlags.DeclaredOnly | System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Static);
if (null != providerInstance)
{
Debug.Assert(providerInstance.IsPublic, "field not public");
Debug.Assert(providerInstance.IsStatic, "field not static");
if (providerInstance.FieldType.IsSubclassOf(typeof(DbProviderFactory)))
{
object factory = providerInstance.GetValue(null);
if (null != factory)
{
return((DbProviderFactory)factory);
}
// else throw ConfigProviderInvalid
}
// else throw ConfigProviderInvalid
}
throw ADP.ConfigProviderInvalid();
}
throw ADP.ConfigProviderNotInstalled();
}
// else throw ConfigProviderMissing
}
throw ADP.ConfigProviderMissing();
}
