Row cannot be located for updating delphi

With D7 at least, Delphi's Message Dlg doesn't let you select a default button, which is unfortunate for critical choices.You'll have to use Win32's Message Box() instead: When you add a control on a form at design-time, Delphi takes care of creating and freeing the object, but those tasks are your responsibility when creating objects dynamically, at run-time.

There are three ways to handle this: Declare a variable, call the class' Create() method, and end with Free(), preferably in a try/finally structure: A second way is to use the With structure, and set the instance's owner as a form, so that, even if you forgot to call Free, Delphi will free the object from memory when it kills the parent form (Actually, you should NOT call Free, and let the owner free the instance from memory): Note that the time to dynamically create components with owners is much slower than that to create components without owners. Here's how to read each line of a tab-delimited text file, and save this into an SQLite database: At design-time, the best way to add radio buttons to a form is by first adding a radiogroup object, and modify its Items property to add radio buttons.

On the other hand, dynamic run-time packages contain all the routines, even those that your EXE doesn't use, while, when using statically-linked packages, the IDE will only include stuff that your EXE actually use.

In the end, a statically-linked EXE can turn out to be smaller that a bare EXE and external BPLs.

For example, This indicates that the function operates on all arrays of the specified base type, regardless of their size, how they are indexed, or whether they are allocated statically or dynamically.

See Open array parameters." If you need to pass an array to a routine, you cannot set its size directly, ie.

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