Represents one entity attribute of data model.
public class Korzh.EasyQuery.EntityAttr
: IComparable<EntityAttr>
Fields
| Type |
Name |
Description |
Operator |
_defaultOperator |
The default operator |
Boolean |
_isGhost |
|
Entity |
entity |
|
String |
expr |
Attribute expression |
EntAttrKind |
kind |
Attribute kind. |
Properties
| Type |
Name |
Description |
String |
Caption |
Gets or sets the entityAttr attribute caption. |
String |
ColumnName |
Gets or sets the name of the column associated with property (in EntityFramework context definition). |
String |
CustomFunc |
Gets or sets the custom function. |
DataType |
DataType |
Gets or sets the type of data represented by attribute. |
ValueEditor |
DefaultEditor |
Gets or sets the default value editor. |
String |
Description |
Gets or sets the description of entity attribute. |
EditorsMap |
Editors |
Gets the editors map. |
Entity |
Entity |
Gets or sets the entity. |
String |
Expr |
Gets or sets the attribute expression. |
String |
FullExpr |
Gets the full expression of entity attribute. |
String |
ID |
Gets or sets the ID. |
Boolean |
IsGhost |
Gets a value indicating whether this is a "ghost attribute" - an attribute which was not found in the model. |
Boolean |
IsNullable |
|
EntAttrKind |
Kind |
Gets or sets the attribute kind. |
EntityAttr |
LookupAttr |
Gets the lookup attribute. |
DataModel |
Model |
Gets the model. |
OperatorList |
Operations |
Gets the list of operators which can be applied for this attribute. |
QueryParamList |
Params |
The parameters associated with this entity attribute |
PropertyInfo |
PropInfo |
Gets or sets the property information. |
String |
PropName |
Gets or sets the name of the property. |
Int64 |
Size |
Gets or sets the size of data represented by attribute. |
Boolean |
UseInConditions |
Gets or sets a value indicating whether the attribute can be used in query conditions. |
Boolean |
UseInResult |
Gets or sets a value indicating whether the attribute can be used in result columns (SELECT clause). |
Boolean |
UseInSorting |
Gets or sets a value indicating whether the attribute can be used in sorting. |
Object |
UserData |
Gets or sets the user data object assosiated with attribute. |
Methods
| Type |
Name |
Description |
void |
AddParamsTo(QueryParamList prms) |
|
void |
CheckModel() |
Checks the Model property and raises an exception if it's null. |
void |
CopyFrom(EntityAttr attr) |
Copies all attribute's properties from another entity attribute |
void |
ExtractParams() |
Parse attribute's expression and extract all parameters (like @Param1) used there. |
void |
FillOperatorsWithDefaults(DataModel model) |
Fills the operators list with default operators depending of attribute type. |
String |
GetDataAttrFullExpr() |
Gets full expression of the entity attribute. |
Operator |
GetDefaultOperator() |
Gets the default operator (usually it is first operator in Operations list). |
ValueEditor |
GetValueEditor(Operator op, Int32 operandIndex) |
Gets the most suitable value editor for this attribute and operator. |
Boolean |
HasParams() |
Determines whether this attribute has parameters in its expression. |
void |
LoadAttribute(String propname, String propvalue) |
Loads the attribute. |
void |
LoadFromXmlReader(XmlReader reader) |
Loads attribute from XML reader. |
void |
LoadNodes(XmlReader reader) |
Loads the sub-nodes of entity attribute's node. |
void |
OnModelAssignment() |
Called when model is assigned. |
void |
ProcessVirtualExpr() |
Scans attribute's expression for new parameters, tables, etc |
void |
SaveToJsonDict(JsonDict dict) |
Saves attribute properties to Dictionary object (used for serialization to JSON). |
void |
SaveToXmlWriter(XmlWriter writer) |
Saves Korzh.EasyQuery.EntityAttr to XML writer. |
void |
SaveXmlAttributes(XmlWriter writer) |
Saves the attributes to XML writer. |
void |
SaveXmlNodes(XmlWriter writer) |
Saves the nodes to XML writer. |
void |
SetDefaultOperator(Operator op) |
Sets the default operator. |
Static Methods
| Type |
Name |
Description |
EntAttrKind |
StrToEntAttrKind(String s) |
Converts string representation of attribute kind to EntAttrKind value. |
