private object EvalFunction(FunctionId id, object[] argumentValues, DataRow row, DataRowVersion version)
{
StorageType type;
switch (id)
{
case FunctionId.Charindex:
if (!DataStorage.IsObjectNull(argumentValues[0]) && !DataStorage.IsObjectNull(argumentValues[1]))
{
if (argumentValues[0] is SqlString)
{
SqlString str6 = (SqlString)argumentValues[0];
argumentValues[0] = str6.Value;
}
if (argumentValues[1] is SqlString)
{
SqlString str5 = (SqlString)argumentValues[1];
argumentValues[1] = str5.Value;
}
return(((string)argumentValues[1]).IndexOf((string)argumentValues[0], StringComparison.Ordinal));
}
return(DBNull.Value);
case FunctionId.Len:
{
if (!(argumentValues[0] is SqlString))
{
goto Label_02D4;
}
SqlString str4 = (SqlString)argumentValues[0];
if (!str4.IsNull)
{
SqlString str3 = (SqlString)argumentValues[0];
argumentValues[0] = str3.Value;
goto Label_02D4;
}
return(DBNull.Value);
}
case FunctionId.Substring:
{
int startIndex = ((int)argumentValues[1]) - 1;
int length = (int)argumentValues[2];
if (startIndex < 0)
{
throw ExprException.FunctionArgumentOutOfRange("index", "Substring");
}
if (length < 0)
{
throw ExprException.FunctionArgumentOutOfRange("length", "Substring");
}
if (length == 0)
{
return("");
}
if (argumentValues[0] is SqlString)
{
SqlString str2 = (SqlString)argumentValues[0];
argumentValues[0] = str2.Value;
}
int num3 = ((string)argumentValues[0]).Length;
if (startIndex > num3)
{
return(DBNull.Value);
}
if ((startIndex + length) > num3)
{
length = num3 - startIndex;
}
return(((string)argumentValues[0]).Substring(startIndex, length));
}
case FunctionId.IsNull:
if (!DataStorage.IsObjectNull(argumentValues[0]))
{
return(argumentValues[0]);
}
return(argumentValues[1]);
case FunctionId.Iif:
if (!DataExpression.ToBoolean(this.arguments[0].Eval(row, version)))
{
return(this.arguments[2].Eval(row, version));
}
return(this.arguments[1].Eval(row, version));
case FunctionId.Convert:
{
if (this.argumentCount != 2)
{
throw ExprException.FunctionArgumentCount(this.name);
}
if (argumentValues[0] == DBNull.Value)
{
return(DBNull.Value);
}
Type dataType = (Type)argumentValues[1];
StorageType storageType = DataStorage.GetStorageType(dataType);
type = DataStorage.GetStorageType(argumentValues[0].GetType());
if ((storageType == StorageType.DateTimeOffset) && (type == StorageType.String))
{
return(SqlConvert.ConvertStringToDateTimeOffset((string)argumentValues[0], base.FormatProvider));
}
if (StorageType.Object == storageType)
{
return(argumentValues[0]);
}
if ((storageType == StorageType.Guid) && (type == StorageType.String))
{
return(new Guid((string)argumentValues[0]));
}
if (ExpressionNode.IsFloatSql(type) && ExpressionNode.IsIntegerSql(storageType))
{
if (StorageType.Single == type)
{
return(SqlConvert.ChangeType2((float)SqlConvert.ChangeType2(argumentValues[0], StorageType.Single, typeof(float), base.FormatProvider), storageType, dataType, base.FormatProvider));
}
if (StorageType.Double == type)
{
return(SqlConvert.ChangeType2((double)SqlConvert.ChangeType2(argumentValues[0], StorageType.Double, typeof(double), base.FormatProvider), storageType, dataType, base.FormatProvider));
}
if (StorageType.Decimal == type)
{
return(SqlConvert.ChangeType2((decimal)SqlConvert.ChangeType2(argumentValues[0], StorageType.Decimal, typeof(decimal), base.FormatProvider), storageType, dataType, base.FormatProvider));
}
}
return(SqlConvert.ChangeType2(argumentValues[0], storageType, dataType, base.FormatProvider));
}
case FunctionId.cInt:
return(Convert.ToInt32(argumentValues[0], base.FormatProvider));
case FunctionId.cBool:
{
StorageType type4 = DataStorage.GetStorageType(argumentValues[0].GetType());
if (type4 > StorageType.Int32)
{
switch (type4)
{
case StorageType.Double:
return(!(((double)argumentValues[0]) == 0.0));
case StorageType.String:
return(bool.Parse((string)argumentValues[0]));
}
break;
}
switch (type4)
{
case StorageType.Boolean:
return((bool)argumentValues[0]);
case StorageType.Int32:
return(((int)argumentValues[0]) != 0);
}
break;
}
case FunctionId.cDate:
return(Convert.ToDateTime(argumentValues[0], base.FormatProvider));
case FunctionId.cDbl:
return(Convert.ToDouble(argumentValues[0], base.FormatProvider));
case FunctionId.cStr:
return(Convert.ToString(argumentValues[0], base.FormatProvider));
case FunctionId.Abs:
type = DataStorage.GetStorageType(argumentValues[0].GetType());
if (!ExpressionNode.IsInteger(type))
{
if (!ExpressionNode.IsNumeric(type))
{
throw ExprException.ArgumentTypeInteger(funcs[this.info].name, 1);
}
return(Math.Abs((double)argumentValues[0]));
}
return(Math.Abs((long)argumentValues[0]));
case FunctionId.In:
throw ExprException.NYI(funcs[this.info].name);
case FunctionId.Trim:
if (!DataStorage.IsObjectNull(argumentValues[0]))
{
if (argumentValues[0] is SqlString)
{
SqlString str = (SqlString)argumentValues[0];
argumentValues[0] = str.Value;
}
return(((string)argumentValues[0]).Trim());
}
return(DBNull.Value);
case FunctionId.DateTimeOffset:
if (((argumentValues[0] != DBNull.Value) && (argumentValues[1] != DBNull.Value)) && (argumentValues[2] != DBNull.Value))
{
DateTime time = (DateTime)argumentValues[0];
switch (time.Kind)
{
case DateTimeKind.Utc:
if ((((int)argumentValues[1]) != 0) && (((int)argumentValues[2]) != 0))
{
throw ExprException.MismatchKindandTimeSpan();
}
break;
case DateTimeKind.Local:
if ((DateTimeOffset.Now.Offset.Hours != ((int)argumentValues[1])) && (DateTimeOffset.Now.Offset.Minutes != ((int)argumentValues[2])))
{
throw ExprException.MismatchKindandTimeSpan();
}
break;
}
if ((((int)argumentValues[1]) < -14) || (((int)argumentValues[1]) > 14))
{
throw ExprException.InvalidHoursArgument();
}
if ((((int)argumentValues[2]) < -59) || (((int)argumentValues[2]) > 0x3b))
{
throw ExprException.InvalidMinutesArgument();
}
if ((((int)argumentValues[1]) == 14) && (((int)argumentValues[2]) > 0))
{
throw ExprException.InvalidTimeZoneRange();
}
if ((((int)argumentValues[1]) == -14) && (((int)argumentValues[2]) < 0))
{
throw ExprException.InvalidTimeZoneRange();
}
return(new DateTimeOffset((DateTime)argumentValues[0], new TimeSpan((int)argumentValues[1], (int)argumentValues[2], 0)));
}
return(DBNull.Value);
default:
throw ExprException.UndefinedFunction(funcs[this.info].name);
}
throw ExprException.DatatypeConvertion(argumentValues[0].GetType(), typeof(bool));
Label_02D4:
return(((string)argumentValues[0]).Length);
}
internal void HandleColumn(XmlElement node, DataTable table)
{
Debug.Assert(FEqualIdentity(node, Keywords.XDR_ELEMENT, Keywords.XDRNS) ||
FEqualIdentity(node, Keywords.XDR_ATTRIBUTE, Keywords.XDRNS), "Illegal node type");
string instanceName;
string strName;
Type type;
string strType;
string strValues;
int minOccurs = 0;
int maxOccurs = 1;
string strDefault;
DataColumn column;
// Get the name
if (node.Attributes.Count > 0)
{
string strRef = node.GetAttribute(Keywords.REF);
if (strRef != null && strRef.Length > 0)
{
return; //skip ref nodes. B2 item
}
strName = instanceName = GetInstanceName(node);
column = table.Columns[instanceName, _schemaUri];
if (column != null)
{
if (column.ColumnMapping == MappingType.Attribute)
{
if (FEqualIdentity(node, Keywords.XDR_ATTRIBUTE, Keywords.XDRNS))
{
throw ExceptionBuilder.DuplicateDeclaration(strName);
}
}
else
{
if (FEqualIdentity(node, Keywords.XDR_ELEMENT, Keywords.XDRNS))
{
throw ExceptionBuilder.DuplicateDeclaration(strName);
}
}
instanceName = GenUniqueColumnName(strName, table);
}
}
else
{
strName = instanceName = string.Empty;
}
// Now get the type
XmlElement typeNode = FindTypeNode(node);
SimpleType xsdType = null;
if (typeNode == null)
{
strType = node.GetAttribute(Keywords.TYPE);
throw ExceptionBuilder.UndefinedDatatype(strType);
}
strType = typeNode.GetAttribute(Keywords.DT_TYPE, Keywords.DTNS);
strValues = typeNode.GetAttribute(Keywords.DT_VALUES, Keywords.DTNS);
if (strType == null || strType.Length == 0)
{
strType = string.Empty;
type = typeof(string);
}
else
{
type = ParseDataType(strType, strValues);
// HACK: temp work around special types
if (strType == "float")
{
strType = string.Empty;
}
if (strType == "char")
{
strType = string.Empty;
xsdType = SimpleType.CreateSimpleType(StorageType.Char, type);
}
if (strType == "enumeration")
{
strType = string.Empty;
xsdType = SimpleType.CreateEnumeratedType(strValues);
}
if (strType == "bin.base64")
{
strType = string.Empty;
xsdType = SimpleType.CreateByteArrayType("base64");
}
if (strType == "bin.hex")
{
strType = string.Empty;
xsdType = SimpleType.CreateByteArrayType("hex");
}
}
bool isAttribute = FEqualIdentity(node, Keywords.XDR_ATTRIBUTE, Keywords.XDRNS);
GetMinMax(node, isAttribute, ref minOccurs, ref maxOccurs);
strDefault = null;
// Does XDR has default?
strDefault = node.GetAttribute(Keywords.DEFAULT);
bool bNullable = false;
column = new DataColumn(XmlConvert.DecodeName(instanceName), type, null,
isAttribute ? MappingType.Attribute : MappingType.Element);
SetProperties(column, node.Attributes); // xmlschema.SetProperties will skipp setting expressions
column.XmlDataType = strType;
column.SimpleType = xsdType;
column.AllowDBNull = (minOccurs == 0) || bNullable;
column.Namespace = (isAttribute) ? string.Empty : _schemaUri;
// We will skip handling expression columns in SetProperties, so we need set the expressions here
if (node.Attributes != null)
{
for (int i = 0; i < node.Attributes.Count; i++)
{
if (node.Attributes[i].NamespaceURI == Keywords.MSDNS)
{
if (node.Attributes[i].LocalName == "Expression")
{
column.Expression = node.Attributes[i].Value;
break;
}
}
}
}
string targetNamespace = node.GetAttribute(Keywords.TARGETNAMESPACE);
if (targetNamespace != null && targetNamespace.Length > 0)
{
column.Namespace = targetNamespace;
}
table.Columns.Add(column);
if (strDefault != null && strDefault.Length != 0)
{
try
{
column.DefaultValue = SqlConvert.ChangeTypeForXML(strDefault, type);
}
catch (System.FormatException)
{
throw ExceptionBuilder.CannotConvert(strDefault, type.FullName);
}
}
}
private int Eval(BinaryNode expr, DataRow row, DataRowVersion version)
{
if (expr._op == Operators.And)
{
int lResult = Eval((BinaryNode)expr._left, row, version);
if (lResult != 0)
{
return(lResult);
}
int rResult = Eval((BinaryNode)expr._right, row, version);
if (rResult != 0)
{
return(rResult);
}
return(0);
}
long c = 0;
object vLeft = expr._left.Eval(row, version);
if (expr._op != Operators.Is && expr._op != Operators.IsNot)
{
object vRight = expr._right.Eval(row, version);
bool isLConst = (expr._left is ConstNode);
bool isRConst = (expr._right is ConstNode);
if ((vLeft == DBNull.Value) || (expr._left.IsSqlColumn && DataStorage.IsObjectSqlNull(vLeft)))
{
return(-1);
}
if ((vRight == DBNull.Value) || (expr._right.IsSqlColumn && DataStorage.IsObjectSqlNull(vRight)))
{
return(1);
}
StorageType leftType = DataStorage.GetStorageType(vLeft.GetType());
if (StorageType.Char == leftType)
{
if ((isRConst) || (!expr._right.IsSqlColumn))
{
vRight = Convert.ToChar(vRight, _table.FormatProvider);
}
else
{
vRight = SqlConvert.ChangeType2(vRight, StorageType.Char, typeof(char), _table.FormatProvider);
}
}
StorageType rightType = DataStorage.GetStorageType(vRight.GetType());
StorageType resultType;
if (expr._left.IsSqlColumn || expr._right.IsSqlColumn)
{
resultType = expr.ResultSqlType(leftType, rightType, isLConst, isRConst, expr._op);
}
else
{
resultType = expr.ResultType(leftType, rightType, isLConst, isRConst, expr._op);
}
if (StorageType.Empty == resultType)
{
expr.SetTypeMismatchError(expr._op, vLeft.GetType(), vRight.GetType());
}
// if comparing a Guid column value against a string literal
// use InvariantCulture instead of DataTable.Locale because in the Danish related cultures
// sorting a Guid as a string has different results than in Invariant and English related cultures.
// This fix is restricted to DataTable.Select("GuidColumn = 'string literal'") types of queries
NameNode namedNode = null;
System.Globalization.CompareInfo comparer =
((isLConst && !isRConst && (leftType == StorageType.String) && (rightType == StorageType.Guid) && (null != (namedNode = expr._right as NameNode)) && (namedNode._column.DataType == typeof(Guid))) ||
(isRConst && !isLConst && (rightType == StorageType.String) && (leftType == StorageType.Guid) && (null != (namedNode = expr._left as NameNode)) && (namedNode._column.DataType == typeof(Guid))))
? System.Globalization.CultureInfo.InvariantCulture.CompareInfo : null;
c = expr.BinaryCompare(vLeft, vRight, resultType, expr._op, comparer);
}
switch (expr._op)
{
case Operators.EqualTo: c = (c == 0 ? 0 : c < 0 ? -1 : 1); break;
case Operators.GreaterThen: c = (c > 0 ? 0 : -1); break;
case Operators.LessThen: c = (c < 0 ? 0 : 1); break;
case Operators.GreaterOrEqual: c = (c >= 0 ? 0 : -1); break;
case Operators.LessOrEqual: c = (c <= 0 ? 0 : 1); break;
case Operators.Is: c = (vLeft == DBNull.Value ? 0 : -1); break;
case Operators.IsNot: c = (vLeft != DBNull.Value ? 0 : 1); break;
default: Debug.Assert(true, "Unsupported Binary Search Operator!"); break;
}
return((int)c);
}
public void TestConvertToNumeric()
{
object x;
// decimal
decimal defaut = -1m;
x = 3.5m;
decimal i = SqlConvert.To(x, defaut);
AssertAreEqual(i, 3.5m, "Decimal 1");
x = null;
i = SqlConvert.To(x, defaut);
AssertAreEqual(i, defaut, "Decimal null 2");
x = "toto";
i = SqlConvert.To(x, defaut);
AssertAreEqual(i, defaut, "Decimal null 3");
x = DBNull.Value;
i = SqlConvert.To(x, defaut);
AssertAreEqual(i, defaut, "Decimal null 4");
// double
double defaut2 = -1;
x = 3.5m;
double j = SqlConvert.To(x, defaut2);
AssertAreEqual(j, 3.5, "Double 1");
x = null;
j = SqlConvert.To(x, defaut2);
AssertAreEqual(j, defaut2, "Double null 2");
x = "toto";
j = SqlConvert.To(x, defaut2);
AssertAreEqual(j, defaut2, "Double null 3");
x = DBNull.Value;
j = SqlConvert.To(x, defaut2);
AssertAreEqual(j, defaut2, "Double null 4");
// Float
float defaut3 = -1f;
x = 3.5f;
float k = SqlConvert.To(x, defaut3);
AssertAreEqual(k, 3.5f, "Float 1");
x = null;
k = SqlConvert.To(x, defaut3);
AssertAreEqual(k, defaut3, "Float null 2");
x = "toto";
k = SqlConvert.To(x, defaut3);
AssertAreEqual(j, defaut3, "Float null 3");
x = DBNull.Value;
k = SqlConvert.To(x, defaut3);
AssertAreEqual(j, defaut3, "Float null 4");
}
public void TestConvertToByte()
{
object x;
byte defaut = 255;
// byte
x = 1;
byte i = SqlConvert.To(x, defaut);
AssertAreEqual(i, 1, "Byte 1");
x = null;
i = SqlConvert.To(x, defaut);
AssertAreEqual(i, defaut, "Byte null 2");
x = "toto";
i = SqlConvert.To(x, defaut);
AssertAreEqual(i, defaut, "Byte null 3");
x = DBNull.Value;
i = SqlConvert.To(x, defaut);
AssertAreEqual(i, defaut, "Byte null 4");
x = ETestByte.b1;
ETestByte ti = SqlConvert.To(x, ETestByte.b2);
AssertAreEqual(ti, ETestByte.b1, "Enum Byte 5");
// SByte
sbyte defaut2 = 127;
x = 1;
sbyte j = SqlConvert.To(x, defaut2);
AssertAreEqual(j, (sbyte)1, "SByte 1");
x = null;
j = SqlConvert.To(x, defaut2);
AssertAreEqual(j, defaut2, "SByte null 2");
x = "toto";
j = SqlConvert.To(x, defaut2);
AssertAreEqual(j, defaut2, "SByte null 3");
x = DBNull.Value;
j = SqlConvert.To(x, defaut2);
AssertAreEqual(j, defaut2, "SByte null 4");
x = ETestSByte.sb1;
ETestSByte sti = SqlConvert.To(x, ETestSByte.sb2);
AssertAreEqual(sti, ETestSByte.sb1, "Enum SByte 5");
////// byte Array
////byte[] defaut3 = new byte[3] { 1, 0, 1 };
////x = new byte[2] { 1, 0 };
////byte[] k = SqlConvert.To(x, defaut3);
////Assert.IsNotNull(k, "Byte Array null");
////AssertAreEqual(k.Length, 2, "Taille du byte array");
////AssertAreEqual(k[0], 1, "Byte Array 1[0]");
////AssertAreEqual(k[1], 0, "Byte Array 1[1]");
////x = null;
////k = SqlConvert.To(x, defaut3);
////AssertAreEqual(k, defaut3, "Byte Array Null 2");
////x = "toto";
////k = SqlConvert.To(x, defaut3);
////AssertAreEqual(k, defaut3, "Byte Array Null 3");
////x = DBNull.Value;
////k = SqlConvert.To(x, defaut3);
////AssertAreEqual(k, defaut3, "Byte Array Null 4");
}
private object EvalFunction(FunctionId id, object[] argumentValues, DataRow row, DataRowVersion version)
{
StorageType storageType;
switch (id)
{
case FunctionId.Abs:
Debug.Assert(_argumentCount == 1, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
storageType = DataStorage.GetStorageType(argumentValues[0].GetType());
if (ExpressionNode.IsInteger(storageType))
{
return(Math.Abs((long)argumentValues[0]));
}
if (ExpressionNode.IsNumeric(storageType))
{
return(Math.Abs((double)argumentValues[0]));
}
throw ExprException.ArgumentTypeInteger(s_funcs[_info]._name, 1);
case FunctionId.cBool:
Debug.Assert(_argumentCount == 1, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
storageType = DataStorage.GetStorageType(argumentValues[0].GetType());
switch (storageType)
{
case StorageType.Boolean:
return((bool)argumentValues[0]);
case StorageType.Int32:
return((int)argumentValues[0] != 0);
case StorageType.Double:
return((double)argumentValues[0] != 0.0);
case StorageType.String:
return(bool.Parse((string)argumentValues[0]));
default:
throw ExprException.DatatypeConvertion(argumentValues[0].GetType(), typeof(bool));
}
case FunctionId.cInt:
Debug.Assert(_argumentCount == 1, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
return(Convert.ToInt32(argumentValues[0], FormatProvider));
case FunctionId.cDate:
Debug.Assert(_argumentCount == 1, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
return(Convert.ToDateTime(argumentValues[0], FormatProvider));
case FunctionId.cDbl:
Debug.Assert(_argumentCount == 1, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
return(Convert.ToDouble(argumentValues[0], FormatProvider));
case FunctionId.cStr:
Debug.Assert(_argumentCount == 1, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
return(Convert.ToString(argumentValues[0], FormatProvider));
case FunctionId.Charindex:
Debug.Assert(_argumentCount == 2, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
Debug.Assert(argumentValues[0] is string, "Invalid argument type for " + s_funcs[_info]._name);
Debug.Assert(argumentValues[1] is string, "Invalid argument type for " + s_funcs[_info]._name);
if (DataStorage.IsObjectNull(argumentValues[0]) || DataStorage.IsObjectNull(argumentValues[1]))
{
return(DBNull.Value);
}
if (argumentValues[0] is SqlString)
{
argumentValues[0] = ((SqlString)argumentValues[0]).Value;
}
if (argumentValues[1] is SqlString)
{
argumentValues[1] = ((SqlString)argumentValues[1]).Value;
}
return(((string)argumentValues[1]).IndexOf((string)argumentValues[0], StringComparison.Ordinal));
case FunctionId.Iif:
Debug.Assert(_argumentCount == 3, "Invalid argument argumentCount: " + _argumentCount.ToString(FormatProvider));
object first = _arguments[0].Eval(row, version);
if (DataExpression.ToBoolean(first) != false)
{
return(_arguments[1].Eval(row, version));
}
else
{
return(_arguments[2].Eval(row, version));
}
case FunctionId.In:
// we never evaluate IN directly: IN as a binary operator, so evaluation of this should be in
// BinaryNode class
throw ExprException.NYI(s_funcs[_info]._name);
case FunctionId.IsNull:
Debug.Assert(_argumentCount == 2, "Invalid argument argumentCount: ");
if (DataStorage.IsObjectNull(argumentValues[0]))
{
return(argumentValues[1]);
}
else
{
return(argumentValues[0]);
}
case FunctionId.Len:
Debug.Assert(_argumentCount == 1, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
Debug.Assert((argumentValues[0] is string) || (argumentValues[0] is SqlString), "Invalid argument type for " + s_funcs[_info]._name);
if (argumentValues[0] is SqlString)
{
if (((SqlString)argumentValues[0]).IsNull)
{
return(DBNull.Value);
}
else
{
argumentValues[0] = ((SqlString)argumentValues[0]).Value;
}
}
return(((string)argumentValues[0]).Length);
case FunctionId.Substring:
Debug.Assert(_argumentCount == 3, "Invalid argument argumentCount: " + _argumentCount.ToString(FormatProvider));
Debug.Assert((argumentValues[0] is string) || (argumentValues[0] is SqlString), "Invalid first argument " + argumentValues[0].GetType().FullName + " in " + s_funcs[_info]._name);
Debug.Assert(argumentValues[1] is int, "Invalid second argument " + argumentValues[1].GetType().FullName + " in " + s_funcs[_info]._name);
Debug.Assert(argumentValues[2] is int, "Invalid third argument " + argumentValues[2].GetType().FullName + " in " + s_funcs[_info]._name);
// work around the differences in .NET and VBA implementation of the Substring function
// 1. The <index> Argument is 0-based in .NET, and 1-based in VBA
// 2. If the <Length> argument is longer then the string length .NET throws an ArgumentException
// but our users still want to get a result.
int start = (int)argumentValues[1] - 1;
int length = (int)argumentValues[2];
if (start < 0)
{
throw ExprException.FunctionArgumentOutOfRange("index", "Substring");
}
if (length < 0)
{
throw ExprException.FunctionArgumentOutOfRange("length", "Substring");
}
if (length == 0)
{
return(string.Empty);
}
if (argumentValues[0] is SqlString)
{
argumentValues[0] = ((SqlString)argumentValues[0]).Value;
}
int src_length = ((string)argumentValues[0]).Length;
if (start > src_length)
{
return(DBNull.Value);
}
if (start + length > src_length)
{
length = src_length - start;
}
return(((string)argumentValues[0]).Substring(start, length));
case FunctionId.Trim:
{
Debug.Assert(_argumentCount == 1, "Invalid argument argumentCount for " + s_funcs[_info]._name + " : " + _argumentCount.ToString(FormatProvider));
Debug.Assert((argumentValues[0] is string) || (argumentValues[0] is SqlString), "Invalid argument type for " + s_funcs[_info]._name);
if (DataStorage.IsObjectNull(argumentValues[0]))
{
return(DBNull.Value);
}
if (argumentValues[0] is SqlString)
{
argumentValues[0] = ((SqlString)argumentValues[0]).Value;
}
return(((string)argumentValues[0]).Trim());
}
case FunctionId.Convert:
if (_argumentCount != 2)
{
throw ExprException.FunctionArgumentCount(_name);
}
if (argumentValues[0] == DBNull.Value)
{
return(DBNull.Value);
}
Type type = (Type)argumentValues[1];
StorageType mytype = DataStorage.GetStorageType(type);
storageType = DataStorage.GetStorageType(argumentValues[0].GetType());
if (mytype == StorageType.DateTimeOffset)
{
if (storageType == StorageType.String)
{
return(SqlConvert.ConvertStringToDateTimeOffset((string)argumentValues[0], FormatProvider));
}
}
if (StorageType.Object != mytype)
{
if ((mytype == StorageType.Guid) && (storageType == StorageType.String))
{
return(new Guid((string)argumentValues[0]));
}
if (ExpressionNode.IsFloatSql(storageType) && ExpressionNode.IsIntegerSql(mytype))
{
if (StorageType.Single == storageType)
{
return(SqlConvert.ChangeType2((float)SqlConvert.ChangeType2(argumentValues[0], StorageType.Single, typeof(float), FormatProvider), mytype, type, FormatProvider));
}
else if (StorageType.Double == storageType)
{
return(SqlConvert.ChangeType2((double)SqlConvert.ChangeType2(argumentValues[0], StorageType.Double, typeof(double), FormatProvider), mytype, type, FormatProvider));
}
else if (StorageType.Decimal == storageType)
{
return(SqlConvert.ChangeType2((decimal)SqlConvert.ChangeType2(argumentValues[0], StorageType.Decimal, typeof(decimal), FormatProvider), mytype, type, FormatProvider));
}
return(SqlConvert.ChangeType2(argumentValues[0], mytype, type, FormatProvider));
}
return(SqlConvert.ChangeType2(argumentValues[0], mytype, type, FormatProvider));
}
return(argumentValues[0]);
case FunctionId.DateTimeOffset:
if (argumentValues[0] == DBNull.Value || argumentValues[1] == DBNull.Value || argumentValues[2] == DBNull.Value)
{
return(DBNull.Value);
}
switch (((DateTime)argumentValues[0]).Kind)
{
case DateTimeKind.Utc:
if ((int)argumentValues[1] != 0 && (int)argumentValues[2] != 0)
{
throw ExprException.MismatchKindandTimeSpan();
}
break;
case DateTimeKind.Local:
if (DateTimeOffset.Now.Offset.Hours != (int)argumentValues[1] && DateTimeOffset.Now.Offset.Minutes != (int)argumentValues[2])
{
throw ExprException.MismatchKindandTimeSpan();
}
break;
case DateTimeKind.Unspecified: break;
}
if ((int)argumentValues[1] < -14 || (int)argumentValues[1] > 14)
{
throw ExprException.InvalidHoursArgument();
}
if ((int)argumentValues[2] < -59 || (int)argumentValues[2] > 59)
{
throw ExprException.InvalidMinutesArgument();
}
// range should be within -14 hours and +14 hours
if ((int)argumentValues[1] == 14 && (int)argumentValues[2] > 0)
{
throw ExprException.InvalidTimeZoneRange();
}
if ((int)argumentValues[1] == -14 && (int)argumentValues[2] < 0)
{
throw ExprException.InvalidTimeZoneRange();
}
return(new DateTimeOffset((DateTime)argumentValues[0], new TimeSpan((int)argumentValues[1], (int)argumentValues[2], 0)));
default:
throw ExprException.UndefinedFunction(s_funcs[_info]._name);
}
}
/// <summary>
/// Create text delimited file from DataSet
/// </summary>
public static void create_txt_file(DataSet ds, string destination, txt_data_type type, string txt_qualifier, bool output_field_names)
{
if (SqlConvert.ToString(destination) == "")
{
throw new Err("You must specify the destination location and filename of the xls file to create.");
}
System.Text.StringBuilder sh = new System.Text.StringBuilder();
System.Text.StringBuilder sb = new System.Text.StringBuilder();
bool visible;
DataTable tbl = ds.Tables[0];
#region Set Export Visible Properties
try
{
foreach (DataColumn col in tbl.Columns)
{
string strColName = col.ColumnName.ToLower();
if (strColName == "password" || strColName == "pass" || strColName == "exhibitorpassword" || strColName == "administratorpassword" || strColName == "customerpassword")
{
col.ExtendedProperties["export_visible"] = false;
}
if (strColName == "username" || strColName == "user" || strColName == "exhibitorusername" || strColName == "administratorusername" || strColName == "customerusername")
{
col.ExtendedProperties["export_visible"] = false;
}
}
}
catch (Exception ex)
{
General.Debugging.Report.SendError("Error Setting ExportVisible property in DataTable", ex);
}
#endregion
if (output_field_names)
{
foreach (DataColumn col in tbl.Columns)
{
try
{
visible = (bool)col.ExtendedProperties["export_visible"];
}
catch
{
visible = true;
}
if (visible)
{
if (txt_qualifier != null)
{
sh.Append(txt_qualifier);
}
sh.Append(col.ColumnName);
if (txt_qualifier != null)
{
sh.Append(txt_qualifier);
}
sh.Append(seperator(type));
}
}
if (sh.Length > 0)
{
sh.Remove(sh.Length - seperator(type).Length, seperator(type).Length);
}
sh.Append("\r\n");
}
foreach (DataRow row in tbl.Rows)
{
foreach (DataColumn col in tbl.Columns)
{
try
{
visible = (bool)col.ExtendedProperties["export_visible"];
}
catch
{
visible = true;
}
if (visible)
{
if (txt_qualifier != null)
{
sb.Append(txt_qualifier);
}
sb.Append(row[col].ToString());
if (txt_qualifier != null)
{
sb.Append(txt_qualifier);
}
sb.Append(seperator(type));
}
}
if (sb.Length > 0)
{
sb.Remove(sb.Length - seperator(type).Length, seperator(type).Length);
}
sb.Append("\r\n");
}
System.IO.StreamWriter sw = new System.IO.StreamWriter(destination, false);
if (output_field_names)
{
sw.Write(sh.ToString());
}
sw.Write(sb.ToString());
sw.Close();
}