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Bonus TIPS for Successful Posting

Try a Search First
It is highly recommended that a Search be done on your topic before posting, as many questions have been answered in prior posts. As with any search engine, the shorter the search term, the more "hits" will be returned, but the more specific the search term is, the greater the relevance of those "hits". Searching for "table" might well return every message on the board while "tablesum" would greatly restrict the number of messages returned.

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Grid with fields from several tables, including a record count field

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    #1

    Grid with fields from several tables, including a record count field

    Although this is the first (second?) time I am writting here, I have been reading the forum from a lot of time ago.
    First, excuse me for my very bad written english as I am spanish. I can read in english better than write.
    I have been developing programs for more than 20 years. First in Basic, Cobol and when dbase appeared, in Clipper, then in VBasic finally in Access.
    After stop programming for the last ten years, I have decided to start again, but need a new RAD developing tool like Alpha. I choosed Alpha betwen Runtime Revolution, WinDev (very good but very expensive), Foxpro, Omnis a others.
    I have a license of the enterprese edition and what I need at the moment is a desktop program for my customer (he is my best friend).

    This is a program to control liferafts inspections and I works with 3 different related tables:

    - Ship owners
    - Ships
    - Liferafts

    The relation between tables are 'one to many' in all cases (one ship owner can have several ships, one ship can have several liferafts)

    For the first instance I need a grid with the following info:
    Ship's name - Ship's owner - number of liferafts in the ship

    The grid should be in a tabbed object with 3 tabs. When clicking in the second tab should show the complete list (grid or list-box) of liferafts (relevant info) in the selected vessel in the first tab. When clicking in the third tab, should show all the info of the selected liferaft.

    I can do that using an SQL statement, working with Alpha Five using external link tables (in Access), but I don't know how to construct that with Alpha.

    Any help? Thanks in advance

    Jose
    Tags: None
    #2
    Re: Grid with fields from several tables, including a record count field

    Hola Jose,

    Probably the best and quickest way to do this is to reate a new form in the Forms tab of the Control Panel. Select the set and then click Next, Next, Next, etc. and let the Genie do it for you.

    Not sure if you know how to create a set but that is done in the Tables/Sets tab of the control panel.

    I didn't go into a lot of detail because for right now, examining how the Genie does it is better than me taking a bunch of space to describe it.

    kenn
    TYVM :) kenn

    Knowing what you can achieve will not become reality until you imagine and explore.

    Comment

      #3
      Re: Grid with fields from several tables, including a record count field

      Jose,

      To expand on Kenn's comments a bit ...

      Recommend you create a set with Ship_owners primary, Ships as child - linked 1 to many, and LifeRafts as grandchild - linked 1 to many. Begin by going to the Alpha Five control panel, select tables / sets tab and right click white space, then choose "New Set".

      Base your form on the new set.

      In Alpha Five desktop applications a "grid" is called an embedded browse or browse object. Once your tab control is on the set based form put a browse on tab1 and bind it to the parent table. Put a second browse on tab2 and bind it to the child table. Put a 3rd browse on tab3 and bind it to the grandchild.

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