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Messages 1 to 10 of 17 total |
How to find or go to a Page by its name |
Sun, Aug 9 2015 12:45 PM | Permanent Link |
Trinione | Hi:
I would like to do something like: PagePanel.PageByName('Page1').Tab.Visible := False; Should I write a function that loops thru and find it, as in: pgName := 'Page1'; for i := 0 to PagePanel1.PageCount - 1) do begin if PagePanel1.Pages[i].Name := pgName then begin PagePanel1.Pages[i].Tab.Visible := False; exit; end; end; |
Sun, Aug 9 2015 12:50 PM | Permanent Link |
Uli Becker | TPage(FindComponent('Page1')).Tab.Visible := false;
Uli |
Sun, Aug 9 2015 1:13 PM | Permanent Link |
Trinione | << TPage(FindComponent('Page1')).Tab.Visible := false; >>
Thank you Uli. Clearly I need a few days off of programming (forgetting the basics now!) :/ |
Mon, Aug 10 2015 10:42 AM | Permanent Link |
Tim Young [Elevate Software] Elevate Software, Inc. timyoung@elevatesoft.com | Uli,
<< TPage(FindComponent('Page1')).Tab.Visible := false; >> In case anyone is wondering why FindComponent isn't documented, it's because it's actually a protected method, and I need to do some updates to the component references before I can start including protected properties/methods. EWB 2 has an unusual protected scope for classes that is both different from EWB 1 and Delphi. In EWB 2, access to the protected scope of a class is determined by whether a) the class method accessing the property/method is a descendant of the class being accessed (same as EWB 1 and Delphi), or b) the class method accessing the property/method is a descendant of the class *in which the property/method was declared*. For example, a TDialogEditComboBox class method can't access a protected property in a TEditComboBox class if the protected property is declared in the TEditComboBox class. However, a TDialogEditComboBox class method *can* access the protected Element property of the TEditComboBox class, because both classes descend from the TInterfaceController (WebUI unit) class where the Element property is declared as a protected property. I hope that makes sense. Tim Young Elevate Software www.elevatesoft.com |
Fri, Jun 3 2016 7:58 AM | Permanent Link |
Trinione | << In case anyone is wondering why FindComponent isn't documented, it's because it's actually a protected method, and I need to do some updates to the component references before I can start including protected properties/methods. >>
Tim: Any idea when FindComponent will be available? It would be extremely useful. Thanks. |
Fri, Jun 3 2016 8:07 AM | Permanent Link |
Tim Young [Elevate Software] Elevate Software, Inc. timyoung@elevatesoft.com | << Any idea when FindComponent will be available? It would be extremely useful. Thanks. >> I just surfaced it for 2.05. Of course, you're free to do so yourself, and have been able to do so since the question was first asked. Tim Young Elevate Software www.elevatesoft.com |
Fri, Jun 3 2016 8:09 AM | Permanent Link |
Tim Young [Elevate Software] Elevate Software, Inc. timyoung@elevatesoft.com | << Any idea when FindComponent will be available? It would be extremely useful. Thanks. >>
Also, in case it wasn't clear the first time: any TComponent instance's methods *can* use the *protected* method right now, no need for promotion to a public property. The only reason that it's needed is for documentation purposes. Tim Young Elevate Software www.elevatesoft.com |
Fri, Jun 3 2016 10:48 AM | Permanent Link |
Trinione | << Of course, you're free to do so yourself, and have been able to do so since the question was first asked. >>
I made the decision not to change things within the EWB core system as those changes may impact ensuing versions and become my personal nightmare to maintain/figure out. |
Fri, Jun 3 2016 10:52 AM | Permanent Link |
Trinione | Tim Young [Elevate Software] wrote:
<< Also, in case it wasn't clear the first time: any TComponent instance's methods *can* use the *protected* method right now, no need for promotion to a public property. The only reason that it's needed is for documentation purposes. >> Tim: EWB has re-awaken my interest in Pascal. Still coming to terms with it and don't understand the nuance of what you said regarding *protected* method etc. I shall research it and grasp it soon enough though. Thanks. |
Fri, Jun 3 2016 11:03 AM | Permanent Link |
Trinione | Question: Is it possible to find a tab in an Application by its name?
For example, a form has a page panel tab named 'tabUser_293'. And, from another form elsewhere in the system find that tab with: Application.TPage(FindComponent('tabUser_293'))? Just thinking out loud before I try it over the weekend. |
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