Delphi loop through components

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http://www.delphigroups.info/2/4/223131.html WebJul 11, 2016 · In Delphi you can iterate through a forms components ( not controls) like so: for i := 0 to Form1.ComponentCount - 1 do begin However in c# Winforms i tried the following: foreach (var component in this.components.Components) { MessageBox.Show (component.ToString ()); } I couldn't find any examples on google on how to iterate …

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WebOct 12, 2016 · var i : integer; begin // loop through all controls (first level only) memo1.lines.add ('*** Controls ***'); for i := 0 to self.ControlCount - 1 do memo1.lines.add (self.controls [i].name); // loop through all components (all levels) memo1.lines.add ('*** Components ***'); for i := 0 to self.ComponentCount- 1 do memo1.lines.add … WebMar 19, 2003 · puts the found buttons captions in a list box procedure TForm1.Button2Click (Sender: TObject); var Loop: Integer; begin for Loop:= 0 to Pred (ComponentCount) do if Components [Loop] is TButton then Listbox1.Items.Add ( (Components [Loop] as TButton).Caption); end; Alter this to look for combo boxes and store there selected text … bladder and bowel service pembrokeshire

Loop through controls on a form - delphi

WebDec 5, 2012 · for i := 0 to ComponentCount-1 do Memo1.Lines.Add(Components[i].ClassName+' (Name = "'+Components[i].Name+'")') end; …gives you the following output, which is very similar to the Structure View in the IDE, except that it doesn’t show the relationships between the components. WebJun 16, 2002 · Looping through components. 5. Accessing components in a loop. 6. Looped Wave-Component - delphi 16. 7. Looping through components on a form. 8. … WebOct 12, 2016 · 2. Loop through the frame's Components [] list. Tag is a public property of TComponent. var Comp: TComponent; I: Integer; begin for i := 0 to frame.ComponentCount-1 do begin Comp := frame.Components [i]; if Comp.Tag = 1 then begin (Comp as TWinControl).SetFocus; break; end; end; end; An alternative would be to define an … bladder and bowel service suffolk

focus - Delphi get component from its tag - Stack Overflow

delphi - How to loop all properties in a Class - Stack Overflow

http://www.delphigroups.info/2/fc/426537.html WebJan 10, 2012 · As long as the components are declared sequentially in the class declaration, you can create an array of TSpinedit type, along with a pointer type to it. Assign the pointer to the address of the first Spinedit, and then you can iterate through each of the spinedits using a for loop as follows: bladder and bowel service south tynesideWebOct 20, 2024 · 1 I have a Delphi packed record: type PFileList = ^TFileList; TFileList = Packed Record ProfileName: string; ProfileDescription: string; ProfileMemo: string; CustomURL: string; SSOProperties: string; end; type TArrOfFileList = array of TFileList; I have a variable FProfileModel that is of type TArrOfFileList. bladder and bowel service witney

"WebMay 24, 2024 · In a standard TTreeView, the best way to iterate through all of its nodes in a "linear" fashion from top to bottom is to utilize the TTreeNode.GetNext () method in a while loop, eg: var Node: TTreeNode; Node := TreeView.GetFirstNode; while Node <> nil do begin //Do something with Node... Node := Node.GetNext; end; " - Delphi loop through components

Delphi loop through components

List of Delphi controls on a form - Scott Hollows

WebYou probably need to recurse inside the loop for grandchildren and so on – David Heffernan Sep 21, 2015 at 19:21 Best would be such a method procedure HandleChildren ( Parent: TControl; Action: TProc; Filter: TPredicate; Recurse: Boolean = False );. Now you have a global tool – Sir Rufo Sep 21, 2015 at 19:32 Probably. WebMar 12, 2015 · Crucially however, a Form is not considered to be the parent of directly placed non-visual components. Therefore, if HasParent is FALSE for a non-visual component on a form (an item in Form.Components) then it is a directly placed component, not a child of some other component. Simply modify your if condition as …

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WebJul 16, 2024 · The Parent is a TWinControl, not a TObjectList, so your attempted typecast is invalid.. You can't use a for.. in loop with the Components property directly, as it is not an iterable container that meets any of the documented requirements:. Delphi supports for-element-in-collection style iteration over containers.The following container iteration …

WebSep 26, 2024 · However, for the sake of learning purposes, I am trying to figure out how I am able to loop thru this array of products components (rendered in App) to only display, for example, prices that are greater than 10 or descriptions that are longer than 10 characters, for example. WebDec 4, 2013 · You don't really want the Components array (which is what the for - in loop iterates over) since it has nothing to do, in general, with the parent-child relationship. Components can own things that have no child relationship, and controls can have …

WebDec 1, 2012 · If you use a name convention to name your component like "Mycomponent" + inttostr (global_int) you can use it to find it very easily : function getMyComponent (id:integer) : TComponent; begin result := {Owner.}FindConponent ('MyComponent'+inttostr (id)); … WebDelphi Developer Need help with looping through the components on a form. 2004-12-15 01:36:43 AM delphi138 Hi, I have a form with a panel called Panel_Middle_Home. On this panel are 4 panels. I want to go through each of the 4 panels and do some operations if they are visible. Im having a problem, I can search

WebMar 19, 2013 · Author Topic: Iterate through components on TTabSheet (Read 11761 times) ProgEd. New Member; Posts: 25; ... Not sure, if it's true for Lazarus, but in Delphi …

Web5. You can write the source component into a stream and read it back into the target component. MemStream := TMemoryStream.Create; try MemStream.WriteComponent (Source); MemStream.Position := 0; MemStream.ReadComponent (Target); finally MemStream.Free; end; You may get problems with duplicate component names though. foxzies productions twitterWebJul 16, 1998 · Looping Through the Controls and Components Arrays. Technical Information Database TI1567D.txt Looping Through the Controls and Components … foxzies productions youtubeWebJan 1, 2009 · Delphi: Iterating through components The code example below shows how you can iterate through components in a Delphi form or data module, check the type of a hosted component and examine its properties. I wrote this as a unit test because the programmers were forgetting to remove their local connection strings from data objects. foxzie productions twitterWebAug 7, 2014 · Delphi get components in loop. I have pagecontrol with 3 pages. On each page I have control for example TEdit with name's edt1 (on first page),etd2 (on second … foxzies twitterhttp://www.delphigroups.info/2/dc/309104.html bladder and bowel service wirralWebApr 17, 2012 · if you are an Delphi 2010 (and higher) user then there is a new RTTI unit (rtti.pas). you can use it to get runtime information about your class and its properties (public properties by default, but you can use {$RTTI} compiler directive to include protected and private fields information). foxzies car dealership tycoon codesWebMar 19, 2013 · Author Topic: Iterate through components on TTabSheet (Read 11761 times) ProgEd. New Member; Posts: 25; ... Not sure, if it's true for Lazarus, but in Delphi the control is not in the list if it's placed on the child container, like TPanel ot TTabSheet. So iterating through Components on the form will give you everything on the form, but ... foxz gear