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Phxtecno

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Posts posted by Phxtecno

    new value of DBComboBox in a grid

    in General

    Posted

    Hi,

    I have a DBgrid  with some fields;

    for two Columns I fill the PickList property with some values.

     

    The 1st pickList is fixed,  while for my application, the values in the second depends on the item selected in the first combo.

     

    So I dynamically populate the second list depending on the NEW values selected during edit of the first combo.

     

    My problem is that  I am not able to catch this New value; I am still in Edit of the row (still not posted)

    and after selection on 1st combo I get always the old value (current in DB).

    instead of the New selected...

     

    I tried to link to the 1st column a specific DBComboBox component,  which have a 'onCloseUp' event
    but I stil gest the "old" value, not the new selection...

     

    Any idea on how get the New selected value ?

     

    Thank you,

    Marco

    UniSpecial Component

    in Third Party Components

    Posted

    Hi Aslan,
    I am looking for a special DBcombobox;

    I mean with double list, for items and display values.

    For example the DB field contains an integer, 1,2,3,4...   but I want display corresponding text description, as Practicer, Nurse, Doctor, etc..

    I see you have a component suite for unigui; do you have such DbCombobox in your collection ?

    Regards,
    Marco

    DBLookupComboBox without lookup dataset

    in General

    Posted

    Message from: "zilav"

     

    Hi Farshad!

     

    I have used EhLib components before, and they have a simple and brilliant

    TDBComboBox control with dual lists: Items and KeyItems, to create lookup

    combos without need of additional dataset. Can you please implement the same

    functionality in UniGui? Frankly speaking, half of lookups or even more in

    most db apps are static, they never change, but to make them work, we need 1

    additional dataset, 1 datasource, 1 table in DB (if not using single global

    lookup table), and perform 1 extra query to fill it. It is already a mess to

    develop apps with a large number of lookups in traditional desktop VCL with

    all those extra db components in datamodules, assignments of listsources,

    keyfields and listfields, and a memory hog in runtime too. But in unigui,

    where all those datasets are created for each user session, it can become

    critical. And I'm not even speaking about startup time for each session

    spent creating lookups in datamodules.

     

    .

     

    Was developed a component with this feature ?

     

    regards

    DataModule types

    in General

    Posted

    Hi, using the uniGui new datamodule wizard is offered the option to choose between an

    Application Datamodule and a Free Datamodule.

    Can you explain the differences between the two and a use case ?

     

     

    regards,

    Marc

    best practice to show Forms

    in General

    Posted

    Hello,

    I am looking for an advice to start an application in the right way;

    My application will be almost the same as the unigui AllFeatureDemo;

    I mean with treeview on left side, title bar on top and a main area in the center to show different forms.

     

    If I do as used with Delphi I would create forms on demand and showmodal, destroying them on close.

    But I have seen that Unigui demo use a TFrameMain component together with closable TUniTabSheet.

     

    Could you explain me the difference ion these methods and which is best way to show the forms avoiding waste resource ?

     

    Thank you,

    Marco

     

     

    use of UniLoginForm

    in General

    Posted

    Hi,

    I am newbie and it's not clear to me the way to use TUniLoginForm.

    The demo is useful but cannot see where in a new project the form must be called, which is the right creation order

    and where is initialized...

     

    Can you explain ?

     

    Thank you,

    Marco

     

    Trial installation

    in Installation

    Posted

    Hello,

    I am new to Unigui; 

    after trial download I run it but get error immediately about licence key expired...

    I have found nothing about this in documentation, but seems there is a registered version (?)

     

    Can you help/clarify what's necessary do to test and eventually buy a licence ?

     

    Best regards,

    Marco 

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