Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>In your code above, if the "SettingsForm.edtProxyServer.text" is less than 7 chars, you will have a situation where you use AntiFreeze and HttpCon without creating them first.</p> <p>I experimented a little with your code, and tested this on my WinXP SP3 (D2010, Indy v10.5.5). This should be working code...</p> <pre><code>procedure TForm1.Button1Click(Sender: TObject); Var Resp : String; begin Resp := webSession('http://www.celarius.com'); if Length(Resp)&gt;0 then MessageDlg('Got the body ok',mtInformation,[mbOk],0); end; function TForm1.webSession(sURL : ansistring) : ansistring; var SStream : Tstringstream; HTTPCon : TIdHTTP; AntiFreeze : TIdAntiFreeze; begin Result := ''; if Length(SettingsForm.edtProxyServer.text) &gt;= 7 then // 0.0.0.0 Try SStream := NIL; AntiFreeze := NIL; HTTPCon := NIL; Try SStream := tstringstream.Create(''); { Create &amp; Set IdHTTP properties } HTTPCon := TIdHTTP.create; HTTPCon.HandleRedirects := true; { Check Proxy } if checkproxy('http://www.google.com') then Begin HTTPCon.ProxyParams.ProxyServer := SettingsForm.edtProxyServer.text; HTTPCon.ProxyParams.ProxyPort := StrToInt(SettingsForm.edtProxyPort.Text); HTTPCon.ProxyParams.BasicAuthentication := True; HTTPCon.ProxyParams.ProxyUsername := SettingsForm.edtProxyServer.Text; HTTPCon.ProxyParams.ProxyPassword := SettingsForm.edtProxyUserName.Text; End; { Create another AntiFreeze - only 1/app } AntiFreeze := TIdAntiFreeze.Create(nil); AntiFreeze.Active := true; HTTPCon.Get(sURL,SStream); Result := UTF8ToWideString(SStream.DataString); Finally If Assigned(HTTPCon) then FreeAndNil(HTTPCon); If Assigned(AntiFreeze) then FreeAndNil(AntiFreeze); If Assigned(SStream) then FreeAndNil(SStream); End; Except { Handle exceptions } On E:Exception do MessageDlg('Exception: '+E.Message,mtError, [mbOK], 0); End; end; function TForm1.checkproxy(sURL : ansistring) : boolean; var HTTPCon : TIdHTTP; AntiFreeze : TIdAntiFreeze; begin Result := False; Try { Inti vars } AntiFreeze := NIL; HTTPCon := NIL; Try { AntiFreeze } AntiFreeze := TIdAntiFreeze.Create(NIL); AntiFreeze.Active := true; { Create &amp; Set IdHTTP properties } HTTPCon := TIdHTTP.Create(NIL); HTTPCon.ProxyParams.ProxyServer := SettingsForm.edtProxyServer.text; HTTPCon.ProxyParams.ProxyPort := StrToInt(SettingsForm.edtProxyPort.Text); HTTPCon.ProxyParams.BasicAuthentication := True; HTTPCon.ProxyParams.ProxyUsername := SettingsForm.edtProxyServer.Text; HTTPCon.ProxyParams.ProxyPassword := SettingsForm.edtProxyUserName.Text; HTTPCon.HandleRedirects := true; HTTPCon.ConnectTimeout := 1000; HTTPCon.Request.Connection := 'close'; HTTPCon.Head(sURL); Finally { Cleanup } if Assigned(HTTPCon) then Begin { Return Success/Failure } Result := HTTPCon.ResponseCode = 200; If HTTPCon.Connected then HTTPCon.Disconnect; FreeAndNil(HTTPCon); End; if Assigned(AntiFreeze) then FreeAndNil(AntiFreeze); End; Except On E:EIdException do ; { Handle exceptions } On E:Exception do MessageDlg('Exception: '+E.Message,mtError, [mbOK], 0); End; end; </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POWhy does this code for checking proxy validity crash?
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USK.Sandell
    1. USK.Sandell
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POWhy does this code for checking proxy validity crash?
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COI cannot believe I missed that! Thank you for the info and the code. -Brad
      singulars
      1. PO
      1. USBrad
    2. COYou're welcome. A second pair of eyes usually sees things the first pair missed!
      singulars
      1. PO
      1. USK.Sandell
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload