Get count of members in record

[nanix]

Delphi-Quellcode:

PerfFormattedData_PerfOS_Processor =  record
  C1TransitionsPerSec: String;
  C2TransitionsPerSec: String;
  C3TransitionsPerSec: String;
  Caption: String;
  Description: String;
  DPCRate: String;
  DPCsQueuedPerSec: String;
  Frequency_Object: String;
  Frequency_PerfTime: String;
  Frequency_Sys100NS: String;
  InterruptsPerSec: String;
  Name: String;
  PercentC1Time: String;
  PercentC2Time: String;
  PercentC3Time: String;
  PercentDPCTime: String;
  PercentIdleTime: String;
  PercentInterruptTime: String;
  PercentPrivilegedTime: String;
  PercentProcessorTime: String;
  PercentUserTime: String;
  Timestamp_Object: String;
  Timestamp_PerfTime: String;
  Timestamp_Sys100NS: String;
end;

var
WMI_PerfFormattedData_PerfOS_Processor:array of PerfFormattedData_PerfOS_Processor;

so i could do something like this so i could reduce the code size
 WMI_PerfFormattedData_PerfOS_Processor[i].Property[i2]

[mkinzler]

No, because the Entries are named not indexed.

[nanix]

Well how could this be done then?Couse i have like 30 records

changing everything would be nightmare



Maybe

WMI_PerfFormattedData_PerfOS_Processor[i].Property(WMI.GetPropertyName[i2]):=WMIResults

[himitsu]

If you want to have such functionality, then you must implement it yourself.

Since Delphi 2010 it is could possibly even take the new RTTI support.




since Delphi 2006 / Turbo Delphi

Delphi-Quellcode:

TPerfFormattedData_PerfOS_Processor = record
  C1TransitionsPerSec: String;
  C2TransitionsPerSec: String;
  ...
  Timestamp_Sys100NS: String;
private
  function GetProp(i: Integer): String;
public
  property Prop[i: Integer]: String read GetProp;
end;

or

Delphi-Quellcode:

TPerfFormattedData_PerfOS_Processor = record
  C1TransitionsPerSec: String;
  C2TransitionsPerSec: String;
  ...
  Timestamp_Sys100NS: String;
end; 

TPerfFormattedData_PerfOS_Processor_Helper = record helper for TPerfFormattedData_PerfOS_Processor 
private
  function GetProp(i: Integer): String;
public
  property Prop[i: Integer]: String read GetProp;
end;

Delphi-Quellcode:

function TPerfFormattedData_PerfOS_Processor{_Helper}.GetProp(i: Integer): String;
begin
  case i of
    0: Result := C1TransitionsPerSec;
    1: Result := C2TransitionsPerSec;
    ...
    23: Result := Timestamp_Sys100NS;
    else Raise Exception.Create('invalid index');
  end;
end;

[thkerkmann]

Hi,

if it's all string data ? why not use a dictionary instead of a record:

Use a tStringlist and add values like "ProcessorName=Intel Core2"

regards

[nanix]

Thanks for the information but such concept isnt possible ? By name not by index

WMI_PerfFormattedData_PerfOS_Processor[i].Property(WMI.GetPropertyName[i2]):=WMIResults

[himitsu]

Delphi-Quellcode:

private
  function GetProp(Name: String): String;
public
  property Prop[Name: String]: String read GetProp;
end;

[nanix]

yea himitsu add all these functions for each record i have over 35 would be mad crazy

[himitsu]

Zitat von nanix:

yea himitsu add all these functions for each record i have over 35 would be mad crazy

Well, whoever wants it easier later, you first have to invest some work.


WMI_PerfFormattedData_PerfOS_Processor: array of StringList; TDictionary
WMI_PerfFormattedData_PerfOS_Processor: array of TDictionary; http://www.delphipraxis.net/internal...t.php?t=156343
WMI_PerfFormattedData_PerfOS_Processor: array of TAssocArray<String>; declared in himXML.pas
WMI_PerfFormattedData_PerfOS_Processor: array of TAssocStringArray; ...

[nanix]

Can you explain to me whats the advantage to use

WMI_PerfFormattedData_PerfOS_Processor: array of TAssocArray<String>;