I have a VCL form which (in addition to all the other controls) has 20 edit boxes on it that are hidden. They are essentially there as boolean variables so I can utilise their OnChange event to trigger other things.
Even though these are enabled but not visible, will they have a noticeable impact on the form load time, particularly as I am using VCL themes as well?
This article would suggest they are not created until referenced or made visible, but since I reference them during form load then I assume they will be created then. I suppose the bulk of the 'create time' is in the painting, but I figure they are not being painted if hidden so we are saving time there, therefore is the time I am left with likely to be noticeable?
Related
If I modify the code on the page myself (e.g., changing the width of the form, or the font) will the data still fall into SalesManago?
At the moment of modification of the appearance of the form in the code on the site, these changes will not be visible in the system, that is, the appearance of the form in the system will remain as it was before the changes, but it will not affect the data falling into the SM. All the logic related to data submission does not change, the important thing is that you do not change the attributes in the elements, e.g. name, id, ect.
I started writing test for a WPF application with FlaUI (UI Automation framework). Now I want to get the Visibility value of a couple of buttons.
These buttons are located on the same position in the WPF window. The first is a start button which will start a measurement. When clicked, the measurement button is replaced with a stop button. The visibility of these buttons are set in the code behind of the xaml and needs to be checked/verified.
With FlaUI I only get IsEnabled boolean and OffScreen boolean. But when using the Offscreen parameter, this boolean is not set or is set to the correct value for a couple of seconds but is changed again while the measurement is still running.
I also tried other ways, like looking for a clickable point of the not visible button. But those are not working.
Can this be done without extending the button class with an AutomationPeer and exposing a ValuePattern? I googled a bit but cannot find an (decent) answer. Hopefully someone can help.
I think an important part of your question is the word "replaced". Commonly a program draws one set of controls (in your case the start button) and later draws another set. Possible on top to hide the first, or possible by deleting them.
Commonly controls, including buttons, are drawn within other containing controls and so it may be that the button controls are not there at all, hence the visibility checks should be done on the parent or ancestor controls.
This Q&A seems related to the problem you are having and it may provide some more insight.
"Group Box", for lack of a better word: I want areas in my user form which are visually different from others, with a different background colour and a frame around them, such as is possible to create using Frame controls. However, I want none of the events of Frame controls and none of their interaction with other controls in the form.
More particular, I want to be able to tab through all text, list, combo and check boxes, regardless of their location in 'Group Boxes', in fact also regardless of the possible location of their 'Group Box' within another 'Group Box'. Most of my controls have On Enter, On Exit, On Change and On Key even procedures attached to them which may re-direct the focus to any control on the form. Doing so under the constant interference of Frame controls with their events and rules - many of them not working correctly, none of them properly explained anywhere - is a gargantuan task. The easy way would be to have the visual design capabilities only, without the "intelligence" which assumes control in a way not compatible with my own plans.
Perhaps the one feature of frames which makes them unfit for my purposes is that they act as forms within the form, meaning they appoint an ActiveControl when activated which they refuse to release when another control takes the focus outside their own frame. It is inconvenient to prevent a first control's On Enter procedure from running when any control in a frame receives the focus (different for first and subsequent times), but it's a much bigger task to deal with the selected control's On Exit event which won't fire until the form is closed, meaning it is missed when the control optically loses the focus and a nuisance when it technically does.
Is there a control that fits my needs in MS Word? Or can the Frame control be stripped of its events in some way? Could I place a Text Box, for example, in front of a Frame control without it also being "within" it?
For MS Word use a label with a background color.
For MS Access use the rectangle Object behind the controls.
First make the form background a grey color. Then add subforms(ms access) and rectangles to segment the controls.
The end effect is it looking like a paneled interface.
You can use a Frame control. Place the other controls first, then place the Frame control, and move it to the back. This should look visually identical to having the controls in the Frame.
Here's the issue, I build a special book reader/browser (For holy quran), my code behind loads the page and constructs how it should look. and then it should bind that look to a some kind of data-bindable custom control to view it properly. the problem is, the look differs from page to page, so I cannot bind to a certain control or wrap panel.
here's how it generally looks:
The decorative border top of the page is always there at any page, it indicates the part and chapter the viewer is in.
If you're starting a new chapter it have additional image under that decorative border or anywhere in the page (there can be multiple chapters in the same page) something like this
or this:
The normal text is not an issue, it's just a special font, however, I put each individual word in its own text block for reasons of user selection by word.
The issue here is, given the previous information, and knowing how random it is to place the decoration picture or the amount of words (text blocks) per page. how can I bind that to some kind of view to separate the view from the VM and Engine that builds the page.
my past solution was to actually build everything in the VM in a wrappanel built inside a scrollviewer having lots of textblocks and images according to the page. but that's naiive solution. I want to rebuild that in a more professional separated way. I also want to do this for Windows RT beside Windows phone so I need to reuse the code behind in a Portable class library.
I think all you need to do is slightly adjust your current design. So perhaps have a VM that represents the entire content, and that would have a Collection of say Pages or Sections. A second VM would represent the Page/Section, allowing you to create a property for the WrapPanel content (i.e. the words) and another property for the Header and or other things.
In the View you would have the scrollviewer and bind to the main VM collection. Then create another View or DataTemplate that represents the Page/Section.
You should be able to do this is a strict MVVM sense quite easily and it will be dynamic based on the content.
You could even cater for advanced scenarios where each section has a different template/view.
What would be more efficient in a kinda big application for a mobile application? Make a separate TabItem for each menu item or have one TabItem with an empty Rectangle that will become parent of the form of each Menu Item's Unit?
(I assume you mean reparenting the controls on a child form to appear within a container on your main form. If so you'll need to use (e.g.) a TLayout which will handle child controls better rather than a TRectange).
It depends what you mean by 'efficient'.
One big form will take longer at start up and consume more memory.
Creating content on demand will take longer at run time as each form is created and destroyed.