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CGridCtrl 1.5

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17 Jun 20042 min read 133.8K   6.4K   41   26
This article presents a tiny grid control derived from the standard list control

Image 1

Introduction

This grid control is an advanced list control set to "Report" view that uses the custom-draw mechanism to paint itself. It provides a lot of extra features and the ability to easily add new ones.

Features

Cell-level selection

Being a grid, it is divided into cells (not just rows). The cursor moves horizontally, too.

Multiple cell types

Cells are more than just blind text displayed; they can be edited. Currently, the following cell types are available:


  • Regular cell (blind text)

  • Edit box (Screenshot: Col1 has 5 edit box cells)

  • Combo box (Screenshot: Col2 has combo box cells)

  • Editable combo box (Screenshot: Col3 has editable combo cells)

  • Check box (Screenshot: Col5 has check box cells)

  • Custom edit (Ellipsis) (Screenshot: Col4 has ellipsis cell)

  • Separator (Screenshot: Row11 has separators)

New cell types can easily be added.

Inplace combo boxes with images

Combo box and Editable combo box cells, can display images when they are dropped down. When an item is edited, its new (text) value AND the corresponding image are applied.

Multi-select

You can select multiple cells simultaneously (see screenshot).

Multi-edit

After editing a cell, its new value applies to the entire selection

Custom colors

The grid has a complex colouring system. First of all, it has a global color scheme applied by default to all its cells. Initially, this global color scheme uses the default Windows colors. Secondly, each cell can have overridden colors (and fonts).

Cell font-styles

Beside custom colors, each cell can have it's own font style. Currently is supported any combination of: bold, italic, underline and strikeout. For instance, in the screenshot, Col5 is BOLD + ITALIC, Col6 is UNDERLINE + STRIKEOUT.

Custom cell drawing

If you are not satisfied with the default behavior, you can easily custom draw any cell.

Incremental search

If you start typing a string, the selection jumps to the first cell that matches it.

Using the code

Being a list control, the grid is to be used the same way. First of all, insert some columns with InsertColumn. Then, insert items with InsertItem. Insert subitems using SetItem.

Tips:

  1. Multi-selection is disabled by default. In order to enable, open the resource editor, select the list control, set it to report view and set "Single Selection" to false
  2. The grid will NOT work with LVS_EX_HEADERDRAGDROP style
  3. The grid was NOT tested with sorted columns. It might work, though...

For using the advanced features, you could take a look at the demo project... It's well commented.

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here


Written By
Web Developer
Romania Romania
- C/C++ Programming
- Windows Device Driver programming (DDK)
- Low-level networking programmer (firewalls, routers, sniffers...)
- AutoCAD ObjectARX/DBX programming
- ADT Object Modeling Framework (OMF) programmer

Comments and Discussions

 
GeneralIt's a grid, not a tree :/ Pin
Kochise18-Jun-04 2:54
Kochise18-Jun-04 2:54 
Correct, but when you are in edit mode, there is not standard of what should be done :

- Discard the new value as it was not validated with Return
- Or save the new value, exit edit mode of the current cell and immediatly entetr edit mode of the new selected cell (unless you press Esc to exit any edit mode)
- Or close everything
- Or...

I'm just telling Marius that in a case of such a grid, you may enter a large number of values. Then validating, selecting, reselection to enter edit, edit, unselecting and then should be too much... Try Excel, select a cell, enter some text, select another cell once, enter some text, ... You get the idea ? So my expected behavior should be :

1- Select different cells
2- Select a second time to edit, or direct keyboard input
3- Esc to discard, Return or loose focus to validate

Kochise

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