Tip Bank

Question: How can I add and remove columns from a table at run time? Answer: While I’m an avid supporter of Delphi, one of the most annoying things about it

Question: How do I get the field structures from a table, then load them intoa list of some sort? Answer: Accessing and Using the TFieldType While this isn’t the hardest

Question: Can a Java applet or executable run locally on a PC if the PC is not connected to a network? Example: I bring up my home page and download

Question: Can I do the function which is like the macro in Clipper? For Example, Pass the (X*(Y+Z)) string to it and return the answer. Answer: I don’t see why

Question: Could you please tell me how to take a value from a field of a databse and store it as a variable. I want to take an int variable

Question: I can not use tha math functions which was included in math unit. when I use one of them , the compiler cant identify it. I add ‘math’ to

Question: When paint() iscalled, the clipRect of the Graphics obj may already be set to somethingsmaller than the full drawable region of the object (if, for instance, it’sa partial window-manager

Question: I have written an applet that creates a graph from the resultsof a query of our Oracle database. The graph looks good in the browser(Netscape 3.0), but if I

Question: I created a new edit control component which I derived from TEdit,however, when I added it to the component palette, it has the samebitmap as TEdit. How do I