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Questions tagged [datasnap]

DataSnap is a Delphi technology that allows the development of multi-tier applications

DataSnap is a Delphi technology that allows the development of multi-tier applications, most notably multi-tier database applications.

DataSnap offers the possibility to create Client-Server applications that communicate through the Internet, the local network, or the local host.

The main feature of DataSnap is the ability of the Client application to invoke methods that are implemented on a Server. DataSnap automatically generates the necessary interface for the Client to communicate with the Server, containing the prototypes of the Server methods.

http://docwiki.embarcadero.com/RADStudio/en/DataSnap_Overview_and_Architecture

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Datasnap Delphi XE7 - ApplyUpdates(0) issue

I have a datasnap server app developed originally with XE5 that was working fine with a client app on a mobile tablet accessing a Firebird database on a server. I have recompiled the code with XE7. The only change I had to make to the code to…
Bill Zwirs
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How to safely UnMarshal JSON objects

When i try to unmarshall a JSON object that is not well formated, I expect a object reference from UnMarshall function, but it comes nil. But so, when I close my application that object generates memory leaks. TMyObject = class private FName:…
Lucas Belo
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Windows Phone - Does not exist in the namespace 'System.Windows'

I'm developing an app for windows phone, based on DataSnap (Delphi). However, the error is displayed for reference System.Windows.Threading; : The type or namespace name 'Threading' does not exist in the namespace 'System.Windows' (are you missing…
Rene Sá
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Create DSServerClass at Runtime?

Anyone knows how to create and run DSServerClass at runtime? Everything is fine if i create it before DSServer started (at runtime), the class found at client side. But if i create it after DSServer started, the client would not found that…
Theo
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Loading Bitmap Failed on Berlin

I have a problem migrating a process from XE8 to Berlin 10.1. On XE8, it works fine. On Berlin, I get a "Loading Bitmap Failed" error. I have a DataSnap REST server with this method: function TSM.Downloafile(): TStream; var s: TFileStream; begin …
Dison
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How to a) Iterate over Delphi (Seattle) TObjectList and/or TList objects and access an object at an index

I am in the process of creating a Datasnap Server and Client set, with which to eventually connect (server) to several different Databases. For the server I created a test class that I call TMember. The server and client uses this Unit (uMember).…
Hendrik Potgieter
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