/// <summary>
/// vraci hodnotu sloupce, pripadne hodnotu null (referenci)
/// </summary>
/// <param name="data"></param>
/// <param name="row"></param>
/// <param name="ColumnName"></param>
/// <returns></returns>
internal static object ValByName(this SelectStatementResultRow row, DevExpress.Xpo.DB.SelectedData data, string ColumnName)
{
string colName, colType, stringValue;
int colIndex = Int32.MaxValue;
for (int i = 0; i < data.ResultSet[0].Rows.Count(); i++)
{
DevExpress.Xpo.DB.SelectStatementResultRow rowColDefine = data.ResultSet[0].Rows[i];
colName = (string)rowColDefine.Values[0];
colType = (string)rowColDefine.Values[2]; //Decimal, String ...
if (String.Equals(colName, ColumnName, StringComparison.InvariantCultureIgnoreCase))
{
colIndex = i;
break;
}
}
if (colIndex <= row.Values.Count())
{
return(row.Values[colIndex]);
}
else
{
throw new IndexOutOfRangeException(String.Format("column \"{0}\" v kolekci DataSetu neexistuje", ColumnName));
}
}
internal static string[] GetColNames(this DevExpress.Xpo.DB.SelectedData data)
{
string[] colNames = new string[data.ResultSet[0].Rows.Count()];
for (int i = 0; i < data.ResultSet[0].Rows.Count(); i++)
{
SelectStatementResultRow rowColDefine = data.ResultSet[0].Rows[i];
colNames[i] += (string)rowColDefine.Values[0];
}
return(colNames);
}
internal static Dictionary <string, Type> GetColumnsInfo(this DevExpress.Xpo.DB.SelectedData data)
{
Dictionary <string, Type> colInfo = new Dictionary <string, Type>();
for (int i = 0; i < data.ResultSet[0].Rows.Count(); i++)
{
SelectStatementResultRow rowColDefine = data.ResultSet[0].Rows[i];
Type typ = DBColumn.GetType((DBColumnType)Enum.Parse(typeof(DBColumnType), (string)rowColDefine.Values[2]));
try
{
colInfo.Add((string)rowColDefine.Values[0], typ);
}
catch (Exception exc)
{
throw new ArgumentException(exc.Message + "\n key: " + (string)rowColDefine.Values[0]);
}
}
return(colInfo);
}
/*======================================================================*/
internal static void copyToObject <T>(this SelectStatementResultRow row, DevExpress.Xpo.DB.SelectedData data, T target)
{
SelectStatementResultRow[] columns = data.ResultSet[0].Rows;
SelectStatementResultRow[] values = data.ResultSet[1].Rows;
Dictionary <string, Type> columnsInfo = data.GetColumnsInfo();
BindingFlags bFlags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance;
System.Reflection.PropertyInfo targetInfo = null;
foreach (var column in columns)
{
string colName = (string)column.Values[0];
object value = ValByName(row, data, colName);
string targetPropName = Utils.copy.GetPropertNameFromPersistAttr(target, colName);
if (targetPropName == string.Empty)
{
targetInfo = typeof(T).GetProperty(colName, bFlags);
}
else
{
targetInfo = typeof(T).GetProperty(targetPropName);
}
if ((!(targetInfo == null)) && (targetInfo.CanWrite))
{
bool dataZapsana = false;
if (targetInfo.PropertyType.IsAssignableFrom(columnsInfo[colName]))
{
targetInfo.SetValue(target, value, null);
dataZapsana = true;
}
else
{
HashSet <Type> IntTypes = new HashSet <Type> {
typeof(int), typeof(Int16), typeof(Int32),
typeof(Int64), typeof(short), typeof(uint),
typeof(UInt16), typeof(UInt32), typeof(UInt64)
};
HashSet <Type> nullIntTypes = new HashSet <Type> {
typeof(int?), typeof(Int16?), typeof(Int32?),
typeof(Int64?), typeof(short?), typeof(uint?),
typeof(UInt16?), typeof(UInt32?), typeof(UInt64?)
};
if ((IntTypes.Contains(targetInfo.PropertyType)) && (columnsInfo[colName] == typeof(System.Decimal)) &&
(((decimal)value % 1) == 0)
)
{
targetInfo.SetValue(target, (int)(decimal)value, null);
dataZapsana = true;
}
if ((nullIntTypes.Contains(targetInfo.PropertyType)) && (columnsInfo[colName] == typeof(System.Decimal)))
{
if (value == null)
{
targetInfo.SetValue(target, value, null);
dataZapsana = true;
}
else
{
if (((decimal)(value ?? 0) % 1) == 0)
{
targetInfo.SetValue(target, (int)(decimal)value, null);
dataZapsana = true;
}
}
}
}
if (!dataZapsana)
{
throw new Exception(String.Format("data sloupce \" {0} \" nelze zkopirovat", colName));
}
}
}
}