public void LoadFromString(
String AString,
Char ASeparator,
TLoadValueCondition ALoadValueCondition = TLoadValueCondition.lvcAlways,
Char AParamPrefix = '\0',
TParams AParams = null
)
{
if (String.IsNullOrEmpty(AString)) return;
//TLoadValueCondition LLoadValueCondition = Pub.LoadValueConditionParser(ALoadValueCondition);
Pub.NamedItemsParser Parser =
new Pub.NamedItemsParser
(
AString,
new Char[] { ASeparator, '\r', '\n' },
true
);
while (Parser.MoveNext())
{
try
{
String LName = Parser.Current.Name.Trim();
String SValue = Parser.Current.Value;
if(Parser.Current.Quote == '\0')
SValue = SValue.Trim();
Object LValue;
if
(
AParamPrefix != '\0'
&& Parser.Current.Quote == '\0'
//&& String.IsNullOrEmpty(Parser.Current.CastAs)
&& !String.IsNullOrEmpty(SValue)
&& SValue[0] == AParamPrefix
)
{
if (AParams != null && AParams.FData.TryGetValue(SValue.Substring(1), out LValue))
{
if (ALoadValueCondition != TLoadValueCondition.lvcIfNotPresent || !FData.ContainsKey(LName))
AddParam(LName, LValue);
}
else if (ALoadValueCondition == TLoadValueCondition.lvcAlways)
AddParam(LName, DBNull.Value);
}
else if (ALoadValueCondition != TLoadValueCondition.lvcIfNotPresent || !FData.ContainsKey(LName))
{
// Парсим значение
SqlDbType LSqlDbType = Sql.TypeFromString(Parser.Current.CastAs);
if (LSqlDbType == SqlDbType.Udt)
LValue = new SqlUdt(Parser.Current.CastAs, SValue);
else
LValue = Sql.ValueFromString(SValue, LSqlDbType, Sql.ValueDbStyle.SQL);
AddParam(LName, LValue);
}
}
catch (Exception E)
{
throw new Exception(String.Format("Неверно задано значение TParams '{0}': {1}", AString, E.Message));
}
}
}
/// <summary>
/// Удаляет параметры из списка параметров
/// </summary>
/// <param name="name"></param>
protected void Load(TParams ASource, String AAliases, TLoadValueCondition ALoadValueCondition = TLoadValueCondition.lvcAlways)
{
if (ASource == null) return;
String LTarget, LSource;
foreach (String LAlias in AAliases.Split(';'))
{
int LEqual = LAlias.IndexOf('=');
if (LEqual == -1)
{
LTarget = LAlias;
LSource = LAlias;
}
else
{
LTarget = LAlias.Substring(0, LEqual);
LSource = LAlias.Substring(LEqual + 1);
}
Object LValue;
if (ASource.FData.TryGetValue(LSource, out LValue))
{
if (ALoadValueCondition != TLoadValueCondition.lvcIfNotPresent || !FData.ContainsKey(LTarget))
AddParam(LTarget, LValue);
}
else if (ALoadValueCondition == TLoadValueCondition.lvcAlways)
AddParam(LTarget, DBNull.Value);
}
}
