delphi - LiveBinding value can not be set by code -

-

There is a TToolbar, which is the value it is bound to a TText.Text.
I change the TToolbar value, the text has changed as well. So far, everything works fine.
If I have set the TToolbar value manually, the binding does not affect: The TToolbar value changes, but the text does not.

Is there a way to trigger london banding? Code

Of course, I can set TToolbar.Value and TLabel.Text to separate the manual, decommented in the code below, but this would mean as - Failure to install Label1 Due to the risk of getting unnecessary code. Lesson
- Not very intuitive in more complex lively bonding situations

Sample Delphi FMX code: 

  unit unit 1; Interface, System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants, FMX.Types, FMX.Graphics, FMX.Controls, FMX.Forms, FMX.Dialogs, using FMX.StdCtrls does Data. Bind. Angest, Fnkskbadkdbengest, Sistmkrtti, Sistmkbindingskautputs, Fnkskbad.aditrs, Detakbadkkanponents, Fnkskobjekts; Type TForm1 = Class (TForm) TrackBar 1: TetraBar; Lesson 1: Tietix; Button 1: Tibbon; BindingSlist 1: Tiding List; Link Control OttoProperty Text: TLICXTOLTproperty; Click Process Button 1 (Sender: Tubect); Private public end; Var Form 1: Teform 1; Implementation {$ R * .fmx} Process TForm1.Button1Click (Sender: Tubbed); Start TrackBar1. Value: = 11; // bad workout: // text1 text: = format ('% n', [TrackBar1.Value]); End; End.   
 Unit1.FMX by:  
  object Form1: TForm1 Left = 0 = 0 top caption = 'Form1' ClientHeight = 480 ClientWidth = 640 FormFactor.Width = 320 form factor.height = 480 form factor.device = [desktop, iPhone, iPad] DesignerMobile = Fall DesignerWidth = 0 DesignerHigh = 0 Designer Device Name = 'Designer Orientation = 0 DesignerOsversion =' 'Object Trackbar 1: TTcrack Frequency = 1.00000000000000000000 Elevation = 20.000000000000000000 Orientation = Horizontal Position.x = 32.000000000000000000 Position. Y = 64.000000000000000000 TabOrder = 1 width = 100.00000000000000000000 end Object Lesson 1: Titiitekst height = 25.000000000000000000 Sthiti.aks = 152.000000000000000000 position. Y = 64.00000000000000000000 Width = 137.000000000000000000 End Object Button 1: Tbeton height = 22.000000000000000000 position.x = 32.000000000000000000 Position.Y = 96.000000000000000000 TabOrder = 3 text = 'Button1' width = 80.00000000000000000000 onclick = Button1Click end object BindingsList1: TBin dinglist methods = & lt; & Gt; Output converters = & lt; & Gt; Left = 20, top = 5 object LinkControlToPropertyText: TLinkControlToProperty class = 'Schnelle Bindungen' control = TrackBar1 track = false component = Text 1 ComponentProperty = 'text' end end end    
 < after div class = "text" itemprop = "text"> 
 Unfortunately, due to binding to design (mouse click or by setter property of key presses) value but are not triggered by the GUI interaction.  
 You can see that your  TLinkControlToProperty  a  OnAssigningValue  event see callstack to add binding and the handler when it runs.  
 To trigger to do this manually you have to type it:  
  Tbending Inform (trackbar 1, 'value');   
 For this you have to add  System.Bindings.Helper  to your uses. In  
  Edit : It seems that the binding You can not work with the manual notification (how consistently ...) with visual livebindings and you use another approach To do this:  
  TLinkObservers.ControlChanged (TrackBar1);

Comments

Post a Comment

Popular posts from this blog

ios - Adding an SKSpriteNode to SKScene from a child SKSpriteNode -

-
I have a SKScene where I am adding an SKSpriteNode I have subclassed the SKSpriteNode class to create this node. In the subclass I am defining some SKActions on Sprite. What do I want to do when the end of this phantom ends the SKAction sequence, then I add a new Prayer node to this scene. How is this possible. The following code is mine: The code for the sequence is that I'm running on the Scansprinitode subclass (TEMissileNode): - SKAction * moveDown = [SKAction moveToY: Self.position.y - 20 Duration: 0.2]; SKAction * animation = [SKAction animateWithTextures: textures timePerFrame: time / 7]; SKAction * moveMissileProjectile = [SKAction Moving: Pointoffscreen Term: Time]; SKAction * group = [SKAction group: @ [animation, movement projectile]]; SKAction * Sequence = [SKAction Sequence: @ [Hilldown, Group, [SKAction removalFromParent]]]; [Self run action: sequence]; From the main scene, I call those actions that execute these tasks TEMissileNode * missile = [tmissil...
Read more

Matlab transpose a table vector -

-
An embarrassing simple question seems to be, but how can I move a Matlab table vector? aTableT = aTable '; I tried a standard syntax for the simple interaction of a line vector to a line vector aTable : ATableT = reshape (aTable, 1, Height (aTable)); and aTableT = rot90 (aTable); According to the head, the last time table should work for table, see. However, I get this error code: Error type in using table / permit (line 396) Undefined function 'permute' for the input arguments. Error in rot 90 (line 29) b = magnitude (b, [2 1 3: ndims (a)]); NB: fliplr is not useful either pretty sure I have covered clear angles - any ideas? Thanks! Try changing your table into an array, move it, then back to a table In other words, try doing this: aTableArray = table2array (aTable); ATableT = array 2table (aTableArray. '); I have also read the document for rot90 , and it says that rot90 is definitely working for tables Do, and I find you...
Read more

c# - Textbox not clickable but editable -

-
I have a small form with 10 text boxes, I have set them in the correct tab order. I want them on my tab service I was wondering if there is a way to set the text box so that they can be selected for editing until they are tabbed. That is ... I do not want the end user to edit the text box to click on them, I just want to make them editable through tabu. this should do the trick public partial category poor text box: Text Box {Safe Override Zero WndProc (Ref: Message Message) {if (m.msg == (Int) WM.LBUTTONDOWN) {Return; // mount down events} base.WndProc (ref m); }} Window message enum can be found. How to do this without anherizing: text box : class EatMouseDown: netwindows {safe override zero WndProc (ref message message) {if (m.msg == (int) WM.LBUTTONDOWN) {return; } Base.WandProc (Ref M); }} Safe Override Zero Onload (EventEurge E) {base.OnLoad (e); How to do this without any part: left a clean part, whatever is important, this can be a buggy but it works R...
Read more