Represents an expression which is a result of applying some functions to other expressions
public abstract class Korzh.EasyQuery.AggrFuncExpr
: EqExpression
Fields
| Type |
Name |
Description |
Boolean |
distinct |
Indicates whether all entries of the result must be different |
AggrFunction |
function |
The function of Korzh.EasyQuery.AggrFuncExpr |
Properties
| Type |
Name |
Description |
EqExpression |
Argument |
Gets or sets the main argument. |
String |
CustomFunc |
Gets the custom func for expression if defined |
DataType |
DataType |
Gets or sets the data type. |
Boolean |
Distinct |
Gets or sets a value indicating whether this AggrFuncExpr has "DISTINCT" attribute. |
AggrFunction |
Function |
Gets or sets the function. |
String |
Text |
Gets the expression text. |
String |
Value |
Gets or sets the expression value. |
Methods
| Type |
Name |
Description |
void |
AssignExpr(EqExpression expr) |
Assigns some expression to this one. For AggrFuncExpr class this method assigns the Expression object passed in parameter to Argument property |
void |
AttachArgument(EqExpression argument) |
|
void |
DetachArgument(EqExpression argument) |
|
void |
LoadFromJsonDict(JsonDict dict) |
Loads expression from IDictionary object (used when we load query from JSON). |
void |
LoadFromXmlReader(XmlReader reader) |
Loads expression from XML. |
void |
SaveToJsonDictCore(JsonDict dict) |
Saves expression's properties to dictionary (used to serialize expression into JSON) This is an abstract method which should be overridden in descendant classes. |
void |
SaveToXmlWriter(XmlWriter writer, String tagName) |
Saves expression to XML writer. |
void |
SetContentSilent(String val, String txt) |
Sets the content of the expression silently (without calling ContentChanged event). |
