Is there a ListView (ListBox) or similar component that allows me to easily drop another component in a specific column. (Multiple columns)? Like a checkbox, button or drop down list or all the above. (It would be nice to be able to sort via the header also)
If not does anyone know of a resource on how to custom draw something like this?
Thanks
-Brad
Check out VirtualTreeView at www.soft-gems.net
It does virtually everything :-)
Related
I'm starting to work with Swift 3 and I'm having difficult to find a "easy" solution to create a "ComboBox/Spinner".
I saw some alternatives like using PickerView and Collapse TableView, but It seems to be a solutions to make these components to looks like a ComboBox, It's a adaptation, but It's not a "real comboBox".
I would like to know If there's a component that works with Swift 3 that really represents a ComboBox/Spinner.
Thank you.
As Eric says in his comment, controls aren't defined in Swift, they're defined in the OS frameworks.
iOS does not have a combo box. That's a Windows thing. The standard system component for picking items from a list is a UIPickerView. I've implemented a custom control that's rather like a combox box before, and you may be able to find a 3rd party control that does what you want.
Don't know if this is the kind of combobox system you are looking for:
https://gyazo.com/ce6388cf29f9c33f67df2b6a54c95768
If so you could create a custom button which looks like a combobox. Then if not selected you have an image of a not selected combobox and when someone selects the button change it to the image of a selected combobox.
You create an array, add the amount of custom buttons to the array as you want, you give each button the same selector. Then when someone selects an item, deselect another button if there is one selected and select the button the user did press.
I hope this helps you.
I would like to add an icon to the header of my data grid as it is done in Thunderbird.
There is an icon that is above the vertical scrollbar, no matter the position of the horizontal scrollbar. This icon allows the setup of the columns.
In Delphi there a lot of different grid components, that allow customizations and adding icons to there cells / header cells. But I could not find any component that has an area above the vertical scrollbar that is fixed, which when clicked allows some action. I could even use the VirtualTreeView component to emulate the grid, if it turns out to be easier to customize that component.
I am looking for some guidance on what need to be done to get that functionality.
Thanks,
Thomas
VirtualTreeView in Listbox mode would be nice, because of it's speed, great documentation and ease use in MVC-like patterns. Delphi tempts to store data in the visual components themselves, which letter causes troubles. While VTW allwos the same, it also allows to acutally separate data from GUI, and i like it.
But i am surprised by your claim "which when clicked allows some action.".
Even most basic components allow it:
http://docwiki.embarcadero.com/Libraries/XE2/en/Vcl.Grids.TCustomGrid.OnFixedCellClick
So could you make more detaiils, why you cannot use standard components ? with screenshot and editors, how u want it rendered, where you want to click and what kind of action should happen ?
I'm trying to create my first app based on FireMonkey, and I hit a wall.
The only virtual list control I can find is tGrid.
This component is pretty good, but I can not figure out how to extend or customize it.
I get that there is tCheckbox column, tImage column etc, but what if I need a ButtonColumn or something like this?
Also I would like to style a row, based on the state of the data it represents.
An Example: if the data that is represented in the row has "Error=True" it should be displayed in red.
Has anyone got a similar problem? Or found alternate virtual list/grid components? Or even just some tips on use of the tGrid component.
These components are pretty essential in all database apps so it should be a pretty common request.
Also just as a note, I don't think the TGrid supports Drag & Drop of rows?
I have looked at
Firemonkey version of VirtualTreeView
and
Firemonkey and large amounts of data
If you look at the sources, TCheckColumn is only 15 code lines. If you need to create your own column descendant class it's quite straightforward.
This is one solution, otherwise you can dynamically create some components in your cells and then cast the children when checking the props (TColumn.CellControlByRow() return a TControl and the children would be what you have put in there).
As you want to 'style' your row I would suggest you to write your own TColumn class, even if you can do painting in the OnPaint Event.
I have a application that like firefox, can be enhanced from plugins available from internet.
Now, I want to provide in Delphi (2010) a dialog similar to the download from firefox. I have no skills in build graphical controls.
Using the standard controls of Delphi, what could be the best way... using a TListView/TStringGrid with custom draw or...
The idea is show a icon in the left, a title with subtitle with 1-3 lines on the middle and date/version on the right. That row must be selectable and that is all.
For the UI part,
The easiest way: Use TNextGrid in "Slide view" from bergsoft. It's one of my favorite VCL controls. Check this screenshot:
http://www.bergsoft.net/res/screenshots/next-grid/slides-style.gif
The most flexible way: Use TVirtualStreeTree with custom draw, but it'll take some time to get use to that most powerful tree view control and apply a custom draw.
The Most promising way: Use TMS software's advanced poly list (in beta stage currently), check the Screenshots in the following page and it's very nice looking!:
http://www.tmssoftware.com/site/advpolylist.asp
use VirtualStringTree from SoftGems.
Use TFrame to create a custom control for one download, and then reuse it.
Use a TDataSet descendant (eg. TClientDataSet, JVCL's TjvMemoryData or any other dataset you like) to have a table with all the fields needed to describe your download. For example:
Plugin_Name - Char(255)
Plugin_Icon - Blob
Downloaded_Size - Int64
Total_Size - Int64
//etc.
(Of course the above fields are provided just as an example - the actual fields are up to you).
After this, connect a TDataSource to your table and use an TDBCtrlGrid to show your data as you wish. For the above example, you can put on your record a TDBLabel, TDBImage, TjvDBProgressBar (unfortunately we don't have a data-aware gauge shipped with Delphi) etc. all these connected to the appropriate fields.
In this way you can simulate a list (if you set TDBCtrlGrid's Column property to 1) with a custom layout in which you can do select, add, delete etc.
HTH
My aim is to update the look of the GUI in my app. Currently my GUI contains a lot of listboxes which are used to edit some objects in an old fashioned way, that is, user double-clicks an item and a dialog is shown to modify the corresponding object.
I think a good modern approach is how Firefox displays the extensions installed (a snapshot below).
My question is about how to build such a GUI in Delphi(win32) easily? Are there any components you use mimicing such behaviour or will I just need to code this from stratch using panels? (IMO a very cumbersome job I'd like to avoid - the selection logic, resizings, etc...)
You can do something similar (not exactly) with standard components; TDBCtrlGrid, TSpeedButton,...
alt text http://img8.imageshack.us/img8/9585/imagen29ox3.png
If you're using Delphi 2007 or Delphi 2009, you might be able to do something similar using TCategoryButtons (from the 'Additional' component palette page). Drop it on a form and right click to display the popup menu, and then click "Categories Editor...". Add a category with the resulting dialog, set it's caption, and optionally set up Items it contains. Not exactly the same, but it might do what you need.
You could also use a dialog with a TTreeView (if you have categories of objects) or TListView to emulate the Delphi 2007 Projects->Options dialog. Clicking an item in the TreeView or ListView displays the proper page of a TPageControl to configure the object.
I mostly agree with Lars, but I would use a frame for each item instead of a panel. That would separate into its own file, and you would get easy designtime support for it.
Using a TFrame for each list item and put them all Aligned Top on a TScrollBox might work. Also see TDBCtrlGrid which does something like that in combination with datasets.
It can be done with existing Delphi controls.
For instance in the TCustomListBox control you can create your own OnDrawItem event to draw your own list item. You also need to create your own OnMeasureItem to change the item height.
In some cases it is very limited, so if you want more freedom you will need to do it from scratch.