Delphi FireDAC datasets offer a quick and easy sorting feature, through the property “IndexFieldNames” in which you list the field names to use as an index, and you can optionally specify sorting options for each field.Continue reading “Sorting records in Delphi datasets”
It is common to make your Android apps able to launch and send data to external apps by using intents. But there are also situations when you want your Android app to only launch an external app without passing any data.
This tutorial will show you how to implement this feature :Continue reading “Launch external apps from Delphi Android apps”
How to replace a string quickly in the whole dataset ? How to create a fast replace dialog for your app’s datasets ?
In this tutorial, we will explains the right procedure to implement a replace feature for your Delphi datasets.Continue reading “Replace strings in Delphi dataset records”
Object Pascal units have two sections (interface and implementation), and as you can see in many source code, each section can have distinct items (uses, types, variables, and constants).
So, which section is suitable for putting a unit as uses ?Continue reading “Difference between adding a unit to the interface or the implementation section”
Since version XE2, Delphi is shipped with the built-in unit “System.Zip” for creating, editing and extracting ZIP compressed files. It is based on the RTL, and it can work slightly with VCL and FMX frameworks on all supported targets.
In this tutorial, we will show you what are the abilities of this unit and how to use it properly.Continue reading “Creating and extracting ZIP archives in Delphi”
One of the best implemented features in Delphi datasets is the filter (records filtering). This built-in tool work by combining SQL filtering commands and string options like case sensitivity.
In this quick tutorial, will show you how to use the filter effectively.Continue reading “Using the Filter in Delphi datasets”