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TcxEditRepositoryCheckGroupItem Class

Declaration

TcxEditRepositoryCheckGroupItem = class(
    TcxEditRepositoryItem
)

Remarks

A check group displays a set of check boxes that correspond to individual options.

VCL Editors Library: A Check Group Editor Example

The TcxEditRepositoryCheckGroupItem class overrides the Properties property that allows you to access and customize check group settings.

Edit Repository Items and Standalone Editors

Edit repository items are useful when you need to share the same settings between multiple editors of the same type. To accomplish this goal, you can assign the same edit repository item to RepositoryItem properties of all target editors.

Edit Repository Items and Container Controls

A container control item (such as a toolbar edit item or a column (or any other data item) in a Data Grid, Vertical Grid, or Tree List control) can embed an in-place editor shipped with the ExpressEditors Library. An in-place editor exists (and, therefore, has its own WinAPI handle) only when the target container control item is being edited. Otherwise, the container control item displays a static editor image for resource usage optimization.

VCL Tree List: An In-Place Date Editor

Create a Check Group Repository Item at Design Time

To create a check group repository item at design time, double-click a TcxEditRepository component to invoke its collection editor.

VCL Editors Library: An Edit Repository Collection Editor

The collection editor allows you to manage repository items. Click the Add… button to invoke a repository item creation dialog.

VCL Editors Library: An Edit Repository Item Creation Dialog

Select the CheckGroup item and click the Ok button to create a check group repository item.

Create a Check Group Repository Item in Code

The following code example creates a check group repository item, defines a list of check boxes, and assigns the created repository item to two existing unbound check groups:

uses cxEdit, cxExtEditRepositoryItems;
// ...
var
  ACheckGroupRepositoryItem: TcxEditRepositoryCheckGroupItem;
  ARepositoryItem: TcxEditRepositoryItem;
  ACheckGroupItem: TcxCheckGroupItem;
begin
  ARepositoryItem := cxEditRepository1.CreateItem(TcxEditRepositoryCheckGroupItem);
  ACheckGroupRepositoryItem := ARepositoryItem as TcxEditRepositoryCheckGroupItem;
  // Populates the created repository item with check group items
  ACheckGroupItem := ACheckGroupRepositoryItem.Properties.Items.Add;
  ACheckGroupItem.Caption := 'Circle';
  ACheckGroupItem := ACheckGroupRepositoryItem.Properties.Items.Add;
  ACheckGroupItem.Caption := 'Rectangle';
  ACheckGroupItem := ACheckGroupRepositoryItem.Properties.Items.Add;
  ACheckGroupItem.Caption := 'Ellipse';
  ACheckGroupItem := ACheckGroupRepositoryItem.Properties.Items.Add;
  ACheckGroupItem.Caption := 'Triangle';
  ACheckGroupItem := ACheckGroupRepositoryItem.Properties.Items.Add;
  ACheckGroupItem.Caption := 'Square';
  // Assigns the created repository item to two existing unbound check groups
  cxCheckGroup1.RepositoryItem := ACheckGroupRepositoryItem;
  cxCheckGroup2.RepositoryItem := ACheckGroupRepositoryItem;
end;

Check Group Repository Item Deletion

To delete all check group repository items in a TcxEditRepository component, call its RemoveItems procedure and pass a reference to the TcxEditRepositoryCheckGroupItem class as a parameter.

If you need to delete an individual check group repository item, release it directly in code (call the Free procedure in Delphi or use the delete keyword in C++Builder).

Inheritance

See Also