public static T AppSetting <T>(string key, T defaultValue = default(T)) where T : struct
{
var result = default(T);
var type = typeof(T);
var value = ConfigurationManager.AppSettings[key];
if (type.IsEnum)
{
if (value.IsNumeric())
{
result = SafeClrConvert.ToInt(value).ToEnum(defaultValue);
}
else
{
if (!Enum.TryParse(value, out result))
{
result = defaultValue;
}
}
}
else
{
if (type.IsBasicType())
{
do
{
if (type == TypeHelper.TypeOfBool)
{
result = (T)System.Convert.ChangeType(SafeClrConvert.ToBoolean(value), type);
break;
}
if (type == TypeHelper.TypeOfInt16)
{
result = (T)System.Convert.ChangeType(SafeClrConvert.ToInt16(value), type);
break;
}
if (type == TypeHelper.TypeOfInt32)
{
result = (T)System.Convert.ChangeType(SafeClrConvert.ToInt32(value), type);
break;
}
if (type == TypeHelper.TypeOfInt64)
{
result = (T)System.Convert.ChangeType(SafeClrConvert.ToInt64(value), type);
break;
}
if (type == TypeHelper.TypeOfByte)
{
result = (T)System.Convert.ChangeType(SafeClrConvert.ToByte(value), type);
break;
}
if (type == TypeHelper.TypeOfSByte)
{
result = (T)System.Convert.ChangeType(SafeClrConvert.ToSByte(value), type);
break;
}
if (type == TypeHelper.TypeOfUInt16)
{
result = (T)System.Convert.ChangeType(SafeClrConvert.ToUInt16(value), type);
break;
}
if (type == TypeHelper.TypeOfUInt32)
{
result = (T)System.Convert.ChangeType(SafeClrConvert.ToUInt32(value), type);
break;
}
if (type == TypeHelper.TypeOfUInt64)
{
result = (T)System.Convert.ChangeType(SafeClrConvert.ToUInt64(value), type);
break;
}
if (type == TypeHelper.TypeOfChar)
{
result = (T)System.Convert.ChangeType(SafeClrConvert.ToChar(value), type);
break;
}
if (type == TypeHelper.TypeOfDateTime)
{
result = (T)System.Convert.ChangeType(SafeClrConvert.ToDateTime(value), type);
break;
}
if (type == TypeHelper.TypeOfDecimal)
{
result = (T)System.Convert.ChangeType(SafeClrConvert.ToDecimal(value), type);
break;
}
if (type == TypeHelper.TypeOfDouble)
{
result = (T)System.Convert.ChangeType(SafeClrConvert.ToDouble(value), type);
break;
}
if (type == TypeHelper.TypeOfFloat)
{
result = (T)System.Convert.ChangeType(SafeClrConvert.ToSingle(value), type);
break;
}
if (type == TypeHelper.TypeOfGuid)
{
result = (T)System.Convert.ChangeType(SafeClrConvert.ToGuid(value), type);
break;
}
if (type == TypeHelper.TypeOfTimeSpan)
{
result = (T)System.Convert.ChangeType(SafeClrConvert.ToTimeSpan(value), type);
break;
}
if (type == TypeHelper.TypeOfString)
{
result = (T)((object)value);
break;
}
}while (false);
}
}
return(result);
}
public static void SafeApplyOutputs(this DbCommand cmd, object parameters, PropertyInfo[] properties = null)
{
cmd.ApplyOutputs(parameters, (obj, prop, value) =>
{
if (value == null || DBNull.Value.Equals(value))
{
if (prop.PropertyType.IsNullable() && prop.CanWrite)
{
prop.SetValue(obj, null);
}
}
else
{
if (prop.PropertyType == typeof(CommandParameter))
{
var cp = prop.GetValue(obj) as CommandParameter;
if (cp != null)
{
cp.Value = value;
}
}
else
{
do
{
if (prop.PropertyType == TypeHelper.TypeOfInt16 || prop.PropertyType == TypeHelper.TypeOfNullableInt16)
{
prop.SetValue(obj, SafeClrConvert.ToInt16(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfInt32 || prop.PropertyType == TypeHelper.TypeOfNullableInt32)
{
prop.SetValue(obj, SafeClrConvert.ToInt32(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfInt64 || prop.PropertyType == TypeHelper.TypeOfNullableInt64)
{
prop.SetValue(obj, SafeClrConvert.ToInt64(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfUInt16 || prop.PropertyType == TypeHelper.TypeOfNullableUInt16)
{
prop.SetValue(obj, SafeClrConvert.ToUInt16(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfUInt32 || prop.PropertyType == TypeHelper.TypeOfNullableUInt32)
{
prop.SetValue(obj, SafeClrConvert.ToUInt32(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfUInt64 || prop.PropertyType == TypeHelper.TypeOfNullableUInt64)
{
prop.SetValue(obj, SafeClrConvert.ToUInt64(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfSingle || prop.PropertyType == TypeHelper.TypeOfNullableSingle)
{
prop.SetValue(obj, SafeClrConvert.ToSingle(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfFloat || prop.PropertyType == TypeHelper.TypeOfNullableFloat)
{
prop.SetValue(obj, SafeClrConvert.ToFloat(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfDouble || prop.PropertyType == TypeHelper.TypeOfNullableDouble)
{
prop.SetValue(obj, SafeClrConvert.ToDouble(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfDecimal || prop.PropertyType == TypeHelper.TypeOfNullableDecimal)
{
prop.SetValue(obj, SafeClrConvert.ToDecimal(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfByte || prop.PropertyType == TypeHelper.TypeOfNullableByte)
{
prop.SetValue(obj, SafeClrConvert.ToByte(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfSByte || prop.PropertyType == TypeHelper.TypeOfNullableSByte)
{
prop.SetValue(obj, SafeClrConvert.ToSByte(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfChar || prop.PropertyType == TypeHelper.TypeOfNullableChar)
{
prop.SetValue(obj, SafeClrConvert.ToChar(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfString)
{
prop.SetValue(obj, SafeClrConvert.ToString(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfBool || prop.PropertyType == TypeHelper.TypeOfNullableBool)
{
prop.SetValue(obj, SafeClrConvert.ToBoolean(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfDateTime || prop.PropertyType == TypeHelper.TypeOfNullableDateTime)
{
prop.SetValue(obj, SafeClrConvert.ToDateTime(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfDateTimeOffset || prop.PropertyType == TypeHelper.TypeOfNullableDateTimeOffset)
{
prop.SetValue(obj, SafeClrConvert.ToDateTime(value));
break;
}
if (prop.PropertyType == TypeHelper.TypeOfTimeSpan || prop.PropertyType == TypeHelper.TypeOfNullableTimeSpan)
{
prop.SetValue(obj, SafeClrConvert.ToTimeSpan(value));
break;
}
prop.SetValue(obj, value);
}while (false);
}
}
}, properties);
}
public static T ReflectionSafeTransform <T>(IDataReader reader) where T : class, new()
{
var result = new T();
if (!reader.IsClosed)
{
var props = GlobalReflectionPropertyCache.Cache.GetPublicInstanceReadableProperties <T>();
for (var i = 0; i < reader.FieldCount; i++)
{
if (!reader.IsDBNull(i))
{
var column = reader.GetName(i);
var value = reader[i];
var prop = props.FirstOrDefault(p => string.Compare(p.Name, column, true) == 0);
if (prop != null)
{
try
{
if (prop.PropertyType.IsNullable())
{
if (value != null)
{
object nullableValue = null;
object convertedValue = null;
var nullableFinalType = prop.PropertyType.GenericTypeArguments[0];
if (nullableFinalType == TypeHelper.TypeOfByte)
{
convertedValue = SafeClrConvert.ToByte(value);
}
else
if (nullableFinalType == TypeHelper.TypeOfInt16)
{
convertedValue = SafeClrConvert.ToInt16(value);
}
else
if (nullableFinalType == TypeHelper.TypeOfInt32)
{
convertedValue = SafeClrConvert.ToInt32(value);
}
else
if (nullableFinalType == TypeHelper.TypeOfInt64)
{
convertedValue = SafeClrConvert.ToInt64(value);
}
else
if (nullableFinalType == TypeHelper.TypeOfSByte)
{
convertedValue = SafeClrConvert.ToSByte(value);
}
else
if (nullableFinalType == TypeHelper.TypeOfUInt16)
{
convertedValue = SafeClrConvert.ToUInt16(value);
}
else
if (nullableFinalType == TypeHelper.TypeOfUInt32)
{
convertedValue = SafeClrConvert.ToUInt32(value);
}
else
if (nullableFinalType == TypeHelper.TypeOfUInt64)
{
convertedValue = SafeClrConvert.ToUInt64(value);
}
else
if (nullableFinalType == TypeHelper.TypeOfSingle)
{
convertedValue = SafeClrConvert.ToSingle(value);
}
else
if (nullableFinalType == TypeHelper.TypeOfDouble)
{
convertedValue = SafeClrConvert.ToDouble(value);
}
else
if (nullableFinalType == TypeHelper.TypeOfDecimal)
{
convertedValue = SafeClrConvert.ToDecimal(value);
}
else
if (nullableFinalType == TypeHelper.TypeOfString)
{
convertedValue = SafeClrConvert.ToString(value);
}
else
if (nullableFinalType == TypeHelper.TypeOfDateTime)
{
convertedValue = SafeClrConvert.ToDateTime(value);
}
else
if (nullableFinalType == TypeHelper.TypeOfBool)
{
convertedValue = SafeClrConvert.ToBoolean(value);
}
nullableValue = Activator.CreateInstance(prop.PropertyType, new object[] { convertedValue });
prop.SetValue(result, nullableValue);
}
}
else
{
object convertedValue = null;
var propType = prop.PropertyType;
if (propType == TypeHelper.TypeOfByte)
{
convertedValue = SafeClrConvert.ToByte(value);
}
else
if (propType == TypeHelper.TypeOfInt16)
{
convertedValue = SafeClrConvert.ToInt16(value);
}
else
if (propType == TypeHelper.TypeOfInt32)
{
convertedValue = SafeClrConvert.ToInt32(value);
}
else
if (propType == TypeHelper.TypeOfInt64)
{
convertedValue = SafeClrConvert.ToInt64(value);
}
else
if (propType == TypeHelper.TypeOfSByte)
{
convertedValue = SafeClrConvert.ToSByte(value);
}
else
if (propType == TypeHelper.TypeOfUInt16)
{
convertedValue = SafeClrConvert.ToUInt16(value);
}
else
if (propType == TypeHelper.TypeOfUInt32)
{
convertedValue = SafeClrConvert.ToUInt32(value);
}
else
if (propType == TypeHelper.TypeOfUInt64)
{
convertedValue = SafeClrConvert.ToUInt64(value);
}
else
if (propType == TypeHelper.TypeOfSingle)
{
convertedValue = SafeClrConvert.ToSingle(value);
}
else
if (propType == TypeHelper.TypeOfDouble)
{
convertedValue = SafeClrConvert.ToDouble(value);
}
else
if (propType == TypeHelper.TypeOfDecimal)
{
convertedValue = SafeClrConvert.ToDecimal(value);
}
else
if (propType == TypeHelper.TypeOfString)
{
convertedValue = SafeClrConvert.ToString(value);
}
else
if (propType == TypeHelper.TypeOfDateTime)
{
convertedValue = SafeClrConvert.ToDateTime(value);
}
else
if (propType == TypeHelper.TypeOfBool)
{
convertedValue = SafeClrConvert.ToBoolean(value);
}
if (convertedValue != null)
{
prop.SetValue(result, convertedValue);
}
else
{
prop.SetValue(result, value);
}
}
}
catch (Exception e)
{
throw new Exception($"error reading column {column} into prop {prop.Name}", e);
}
}
}
}
}
return(result);
}
public object Map(IDataReader reader, Type type)
{
var result = Activator.CreateInstance(type);
ReflectionHelper.ForEachPublicInstanceReadableProperty(type, prop =>
{
if (reader.HasColumn(prop.Name))
{
var value = reader[prop.Name];
if (value != null && !DBNull.Value.Equals(value))
{
var propType = prop.PropertyType;
if (propType == TypeHelper.TypeOfBool || propType == TypeHelper.TypeOfNullableBool)
{
prop.SetValue(result, SafeClrConvert.ToBoolean(value));
}
else if (propType == TypeHelper.TypeOfByte || propType == TypeHelper.TypeOfNullableByte)
{
prop.SetValue(result, SafeClrConvert.ToByte(value));
}
else if (propType == TypeHelper.TypeOfByteArray)
{
prop.SetValue(result, (byte[])value);
}
else if (propType == TypeHelper.TypeOfChar || propType == TypeHelper.TypeOfNullableChar)
{
prop.SetValue(result, SafeClrConvert.ToChar(value));
}
else if (propType == TypeHelper.TypeOfDateTime || propType == TypeHelper.TypeOfNullableDateTime)
{
prop.SetValue(result, SafeClrConvert.ToDateTime(value));
}
else if (propType == TypeHelper.TypeOfDateTimeOffset || propType == TypeHelper.TypeOfNullableDateTimeOffset)
{
prop.SetValue(result, SafeClrConvert.ToDateTime(value));
}
else if (propType == TypeHelper.TypeOfDecimal || propType == TypeHelper.TypeOfNullableDecimal)
{
prop.SetValue(result, SafeClrConvert.ToDecimal(value));
}
else if (propType == TypeHelper.TypeOfDouble || propType == TypeHelper.TypeOfNullableDouble)
{
prop.SetValue(result, SafeClrConvert.ToDouble(value));
}
else if (propType == TypeHelper.TypeOfFloat || propType == TypeHelper.TypeOfNullableFloat)
{
prop.SetValue(result, SafeClrConvert.ToSingle(value));
}
else if (propType == TypeHelper.TypeOfGuid)
{
prop.SetValue(result, new Guid(SafeClrConvert.ToString(value)));
}
else if (propType == TypeHelper.TypeOfInt16 || propType == TypeHelper.TypeOfNullableInt16)
{
prop.SetValue(result, SafeClrConvert.ToInt16(value));
}
else if (propType == TypeHelper.TypeOfInt32 || propType == TypeHelper.TypeOfNullableInt32)
{
prop.SetValue(result, SafeClrConvert.ToInt32(value));
}
else if (propType == TypeHelper.TypeOfInt64 || propType == TypeHelper.TypeOfNullableInt64)
{
prop.SetValue(result, SafeClrConvert.ToInt64(value));
}
else if (propType == TypeHelper.TypeOfSByte || propType == TypeHelper.TypeOfNullableSByte)
{
prop.SetValue(result, SafeClrConvert.ToSByte(value));
}
else if (propType == TypeHelper.TypeOfString)
{
prop.SetValue(result, SafeClrConvert.ToString(value));
}
else if (propType == TypeHelper.TypeOfTimeSpan || propType == TypeHelper.TypeOfNullableTimeSpan)
{
prop.SetValue(result, SafeClrConvert.ToDateTime(value));
}
else if (propType == TypeHelper.TypeOfUInt16 || propType == TypeHelper.TypeOfNullableUInt16)
{
prop.SetValue(result, SafeClrConvert.ToUInt16(value));
}
else if (propType == TypeHelper.TypeOfUInt32 || propType == TypeHelper.TypeOfNullableUInt32)
{
prop.SetValue(result, SafeClrConvert.ToUInt32(value));
}
else if (propType == TypeHelper.TypeOfUInt64 || propType == TypeHelper.TypeOfNullableUInt64)
{
prop.SetValue(result, SafeClrConvert.ToUInt64(value));
}
}
}
});
return(result);
}