Delphi Datasnap-XE :How does one setup a filter pragmatically? -


i using following code setup datasnap connection pragmatically

procedure tconnectthreed.execute; var     datasnapcon : tsqlconnection;     proxy       : tsystemrdmclient; begin   proxy       := nil;   datasnapcon := nil;   try     datasnapcon := tsqlconnection.create(nil);     datasnapcon.connected := false;     datasnapcon.drivername := 'datasnap';     datasnapcon.loginprompt := false;     datasnapcon.params.values['port'] :=  '211';     datasnapcon.params.values['hostname'] :=  devicesaddr;     //      // code must added here setup zlib + pc1 +rsa filter ?     //      try       datasnapcon.open;       proxy := tsystemrdmclient.create(datasnapcon.dbxconnection);

question:

how setup zlib & pc1 & rsa filter pragmatically?

if have @ dfm file see going on magic driver property in object inspector. selections make stored in tsqlconnection.params name filters.

to add filters can this.

datasnapcon.params.values['filters'] :=   '{"zlibcompression":{"compressmorethan":"1024"},'+    '"pc1":{"key":"livestronglance!"}}';

but still connection closed gracefully have experienced here delphi xe – datasnap filter problems.


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