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V23.2
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ExpressMemData
Getting Started
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API Reference
dxmdaset
TdxCustomMemData
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TdxMemData
Members
Constructors
Properties
Methods
Events
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TdxMemFields
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TdxMemIndexes
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TdxSortOption
TdxSortOptions
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TdxMemData Members

A memory-based dataset component.

Constructors

Name Description
Create(TComponent) Inherited from TComponent.

Properties

Name Description
Active Inherited from TDataSet.
AggFields Inherited from TDataSet.
AutoCalcFields Inherited from TDataSet.
BlobFieldCount Inherited from TDataSet.
BlobList Inherited from TdxCustomMemData.
BlockReadSize Inherited from TDataSet.
Bof Inherited from TDataSet.
Bookmark Inherited from TDataSet.
CanModify Inherited from TDataSet.
CanRefresh Inherited from TDataSet.
ComObject Inherited from TComponent.
ComponentCount Inherited from TComponent.
ComponentIndex Inherited from TComponent.
Components Inherited from TComponent.
ComponentState Inherited from TComponent.
ComponentStyle Inherited from TComponent.
Constraints Inherited from TDataSet.
CurRec Inherited from TdxCustomMemData.
Data Provides access to a collection of stored memory fields. Inherited from TdxCustomMemData.
DataSetField Inherited from TDataSet.
DataSource Inherited from TDataSet.
DelimiterChar Specifies the column separator character for data exported to plain text files. Inherited from TdxCustomMemData.
Designer Inherited from TDataSet.
DesignInfo Inherited from TComponent.
Eof Inherited from TDataSet.
FieldCount Inherited from TDataSet.
FieldDefList Inherited from TDataSet.
FieldDefs Inherited from TDataSet.
FieldList Inherited from TDataSet.
Fields Inherited from TDataSet.
FieldValues Inherited from TDataSet.
Filter Inherited from TDataSet.
Filtered Inherited from TDataSet.
FilterList Determines the list of filtered records. Inherited from TdxCustomMemData.
FilterOptions Inherited from TDataSet.
Found Inherited from TDataSet.
Indexes Determines indexes for a specific ExpressMemData control. Inherited from TdxCustomMemData.
IsLoading Indicates whether the data loading process is active. Inherited from TdxCustomMemData.
IsUniDirectional Inherited from TDataSet.
Modified Inherited from TDataSet.
Name Inherited from TComponent.
ObjectView Inherited from TDataSet.
Observers Inherited from TComponent.
Owner Inherited from TComponent.
Persistent Provides access to the component’s DFM-related content persistence functionality and settings. Inherited from TdxCustomMemData.
ProgrammedFilter Determines the manner in which the ExpressMemData is filtered. Inherited from TdxCustomMemData.
ReadOnly Specifies if the read-only mode is active. Inherited from TdxCustomMemData.
RecIdField Returns a pointer to the ‘RecId’ field of the ExpressMemData component. Inherited from TdxCustomMemData.
RecNo Inherited from TDataSet.
RecordCount Inherited from TDataSet.
RecordSize Inherited from TDataSet.
SortedField Specifies the name of a dataset field against which the TdxMemData component sorts its content. Inherited from TdxCustomMemData.
SortedFields Specifies one or more fields against which the TdxMemData component sorts its content. Inherited from TdxCustomMemData.
SortOptions Specifies the default sort settings. Inherited from TdxCustomMemData.
SparseArrays Inherited from TDataSet.
State Inherited from TDataSet.
Tag Inherited from TComponent.
VCLComObject Inherited from TComponent.

Methods

Name Description
ActiveBuffer Inherited from TDataSet.
AddFieldsFromDataSet(TDataSet,TComponent) Automatically re-creates missing fields based on field information retrieved from a specified dataset. Inherited from TdxCustomMemData.
Append Inherited from TDataSet.
AppendRecord(Untyped[]) Inherited from TDataSet.
Assign(TPersistent) Inherited from TPersistent.
AssignTo(TPersistent) Inherited from TPersistent.
BeginInvoke(TAsyncConstArrayFunctionEvent,Untyped[],TObject) Inherited from TComponent.
BeginInvoke(TAsyncConstArrayProc,Untyped[],TObject) Inherited from TComponent.
BeginInvoke(TAsyncConstArrayProcedureEvent,Untyped[],TObject) Inherited from TComponent.
BeginInvoke(TAsyncFunctionEvent,TObject) Inherited from TComponent.
BeginInvoke(TAsyncProcedureEvent,TObject) Inherited from TComponent.
BeginInvoke(TProc,TObject) Inherited from TComponent.
BeginInvoke<TResult>(TAsyncConstArrayFunc<TResult>,Untyped[],TObject) Inherited from TComponent.
BeginInvoke<TResult>(TFunc<TResult>,TObject) Inherited from TComponent.
BookmarkValid(TBookmark) Inherited from TDataSet.
Cancel Inherited from TDataSet.
CheckBrowseMode Inherited from TDataSet.
ClearFields Inherited from TDataSet.
Close Inherited from TDataSet.
CompareBookmarks(TBookmark,TBookmark) Inherited from TDataSet.
ControlsDisabled Inherited from TDataSet.
CopyFields(TDataSet) Inherited from TDataSet.
CopyFromDataSet(TDataSet) Makes a copy of a specified dataset. Inherited from TdxCustomMemData.
CreateBlobStream(TField,TBlobStreamMode) Inherited from TDataSet.
CreateFieldsFromBinaryFile(string) Automatically creates fields by reading field definitions from a specified binary file. Inherited from TdxCustomMemData.
CreateFieldsFromDataSet(TDataSet,TComponent) Automatically creates fields based on fields from a specified dataset. Inherited from TdxCustomMemData.
CreateFieldsFromStream(TStream) Automatically creates fields from a specified stream. Inherited from TdxCustomMemData.
CursorPosChanged Inherited from TDataSet.
DefaultFields Inherited from TDataSet.
Delete Inherited from TDataSet.
DestroyComponents Inherited from TComponent.
Destroying Inherited from TComponent.
DisableControls Inherited from TDataSet.
Edit Inherited from TDataSet.
EnableControls Inherited from TDataSet.
EndFunctionInvoke(IAsyncResult) Inherited from TComponent.
EndInvoke(IAsyncResult) Inherited from TComponent.
EndInvoke<TResult>(IAsyncResult) Inherited from TComponent.
Equals(TObject) Inherited from TObject.
ExecuteAction(TBasicAction) Inherited from TComponent.
FieldByName(String) Inherited from TDataSet.
FillBookMarks Fills ExpressMemData bookmarks. Inherited from TdxCustomMemData.
FindComponent(String) Inherited from TComponent.
FindField(String) Inherited from TDataSet.
FindFirst Inherited from TDataSet.
FindLast Inherited from TDataSet.
FindNext Inherited from TDataSet.
FindPrior Inherited from TDataSet.
First Inherited from TDataSet.
FreeBookmark(TBookmark) Inherited from TDataSet.
FreeNotification(TComponent) Inherited from TComponent.
FreeOnRelease Inherited from TComponent.
GetBlobFieldData(Integer,TBlobByteData) Inherited from TDataSet.
GetBookmark Inherited from TDataSet.
GetChildren(TGetChildProc,TComponent) Inherited from TComponent.
GetClonedDataSet(Boolean) Inherited from TDataSet.
GetCurrentRecord(TRecBuf) Inherited from TDataSet.
GetCurrentRecord(TRecordBuffer) Inherited from TDataSet.
GetDetailDataSets(TList) Inherited from TDataSet.
GetDetailDataSets(TList<TDataSet>) Inherited from TDataSet.
GetDetailLinkFields(TList,TList) Inherited from TDataSet.
GetDetailLinkFields(TList<TField>,TList<TField>) Inherited from TDataSet.
GetFieldData(Integer,Pointer) Inherited from TDataSet.
GetFieldData(Integer,TValueBuffer) Inherited from TDataSet.
GetFieldData(TField,Pointer,Boolean) Inherited from TDataSet.
GetFieldData(TField,Pointer) Inherited from TDataSet.
GetFieldData(TField,TValueBuffer,Boolean) Inherited from TDataSet.
GetFieldData(TField,TValueBuffer) Inherited from TDataSet.
GetFieldList(TList,String) Inherited from TDataSet.
GetFieldList(TList<TField>,String) Inherited from TDataSet.
GetFieldNames(TStrings) Inherited from TDataSet.
GetHashCode Inherited from TObject.
GetNamePath Inherited from TPersistent.
GetOwner Inherited from TPersistent.
GetParentComponent Inherited from TComponent.
GetRecNoByFieldValue(Variant,string) The GetRecNoByFieldValue method returns a record number by a specific field value. Inherited from TdxCustomMemData.
GetStateFieldValue(TDataSetState,TField) Inherited from TDataSet.
GetValueCount(string,Variant) Determines the number of records that contain a specified field value. Inherited from TdxCustomMemData.
GotoBookmark(TBookmark) Inherited from TDataSet.
HasParent Inherited from TComponent.
Insert Inherited from TDataSet.
InsertComponent(TComponent) Inherited from TComponent.
InsertRecord(Untyped[]) Inherited from TDataSet.
IsEmpty Inherited from TDataSet.
IsImplementorOf(IInterface) Inherited from TComponent.
IsLinkedTo(TDataSource) Inherited from TDataSet.
IsSequenced Inherited from TDataSet.
Last Inherited from TDataSet.
Loaded Inherited from TComponent.
LoadFromBinaryFile(string) Loads data from a binary file. Inherited from TdxCustomMemData.
LoadFromDataSet(TDataSet) Loads data from a specified dataset. Inherited from TdxCustomMemData.
LoadFromStream(TStream) Loads data from a stream in the internal data format. Inherited from TdxCustomMemData.
LoadFromStrings(TStrings) Loads data from a specified string list. Inherited from TdxCustomMemData.
LoadFromTextFile(string) Loads data from a plain text file. Inherited from TdxCustomMemData.
Locate(String,Variant,TLocateOptions) Inherited from TDataSet.
Locate(string,Variant,TLocateOptions) Searches the KeyValues values in the KeyFields fields. Inherited from TdxCustomMemData.
Lookup(String,Variant,String) Inherited from TDataSet.
MoveBy(Integer) Inherited from TDataSet.
MoveCurRecordTo(Integer) Moves the current record to a new position in the memory-based dataset. Inherited from TdxCustomMemData.
Next Inherited from TDataSet.
Notification(TComponent,TOperation) Inherited from TComponent.
Open Inherited from TDataSet.
Post Inherited from TDataSet.
Prior Inherited from TDataSet.
ReferenceInterface(IInterface,TOperation) Inherited from TComponent.
Refresh Inherited from TDataSet.
RemoveComponent(TComponent) Inherited from TComponent.
RemoveFreeNotification(TComponent) Inherited from TComponent.
Resync(TResyncMode) Inherited from TDataSet.
SaveToBinaryFile(string) Saves data to a binary file. Inherited from TdxCustomMemData.
SaveToStream(TStream) Saves stored data to a stream. Inherited from TdxCustomMemData.
SaveToStrings(TStrings) Saves data to a specified string list. Inherited from TdxCustomMemData.
SaveToTextFile(string) Saves stored data to a plain text file. Inherited from TdxCustomMemData.
SetFields(Untyped[]) Inherited from TDataSet.
SetFilteredRecNo(Integer) Sets the active filtered record. Inherited from TdxCustomMemData.
SetParentComponent(TComponent) Inherited from TComponent.
SetSubComponent(Boolean) Inherited from TComponent.
SupportedFieldType(TFieldType) Determines whether a specific FieldType is supported by the ExpressMemData component. Inherited from TdxCustomMemData.
ToString Inherited from TObject.
Translate(PAnsiChar,PAnsiChar,Boolean) Inherited from TDataSet.
UpdateAction(TBasicAction) Inherited from TComponent.
UpdateCursorPos Inherited from TDataSet.
UpdateFilters Updates ExpressMemData filters. Inherited from TdxCustomMemData.
UpdateRecord Inherited from TDataSet.
UpdateStatus Inherited from TDataSet.

Events

Name Description
AfterCancel Inherited from TDataSet.
AfterClose Inherited from TDataSet.
AfterDelete Inherited from TDataSet.
AfterEdit Inherited from TDataSet.
AfterInsert Inherited from TDataSet.
AfterOpen Inherited from TDataSet.
AfterPost Inherited from TDataSet.
AfterRefresh Inherited from TDataSet.
AfterScroll Inherited from TDataSet.
BeforeCancel Inherited from TDataSet.
BeforeClose Inherited from TDataSet.
BeforeDelete Inherited from TDataSet.
BeforeEdit Inherited from TDataSet.
BeforeInsert Inherited from TDataSet.
BeforeOpen Inherited from TDataSet.
BeforePost Inherited from TDataSet.
BeforeRefresh Inherited from TDataSet.
BeforeScroll Inherited from TDataSet.
OnCalcFields Inherited from TDataSet.
OnDeleteError Inherited from TDataSet.
OnEditError Inherited from TDataSet.
OnFilterRecord Inherited from TDataSet.
OnNewRecord Inherited from TDataSet.
OnPostError Inherited from TDataSet.
See Also