TcxTreeListColumn.OnGetEditingProperties Event

Allows you to change the active in-place editor and customize its settings when a user invokes it for a data cell in the tree list column.

Declaration

delphi

property OnGetEditingProperties: TcxTreeListGetEditPropertiesEvent read; write;

Remarks

You can handle OnGetEditingProperties and OnGetEditProperties events to use multiple editors in one tree list column. The OnGetEditProperties event allows you to use different in-place editors for different cells in a column while the OnGetEditingProperties event allows you to change the active in-place editor and its settings when a user invokes it.

Note

Editor setting changes made in an OnGetEditingProperties event handler are in effect only when an in-place editor is used to edit a value. Properties, PropertiesClass, PropertiesClassName, and RepositoryItem properties as well as an OnGetEditProperties event handler define the base state of the selected in-place editor.

Event Occurrence

The OnGetEditingProperties event occurs every time a user invokes an in-place editor in the column, immediately before the column creates an editor instance.

Tip

The OnGetEditingProperties event is useful when you need to display different in-place editors in active and inactive states.

Event Parameters

You can use Sender and ANode parameters to identify the data cell whose in-place editor is about to be displayed. The AEditProperties parameter allows you to use a preconfigured edit repository item to change the active in-place editor or its settings for the target cell.

Refer to the TcxTreeListGetEditPropertiesEvent procedural type description for detailed information on parameters accessible within OnGetEditingProperties and OnGetEditProperties event handlers.

Code Example: Switch Between Progress Bar and Spin Editors

The following code example handles the OnGetEditingProperties event and uses a preconfigured edit repository item to display a spin editor instead of a non-editable progress bar when a user clicks it:

Delphi
C++

delphi

procedure TfrmScrollbarAnnotations.tlDBStatusGetEditingProperties(
  Sender: TcxTreeListColumn; ANode: TcxTreeListNode;
  var EditProperties: TcxCustomEditProperties);
begin
  inherited;
    EditProperties := cxEditRepository1SpinItem1.Properties;
end;

cpp

void __fastcall TfrmScrollbarAnnotations::tlDBStatusGetEditingProperties(
  TcxTreelistColumn *Sender, TcxTreeListNode *ANode, TcxCustomEditProperties *&EditProperties)
  {
    EditProperties = cxEditRepository1SpinItem1->Properties;
  }

Important Limitations

Do not perform the following operations within OnGetEditingProperties and OnGetEditProperties event handlers to avoid possible drawing errors and access violations:

Do not change Properties, PropertiesClass, and PropertiesClassName property values.
Do not change individual in-place editor settings accessible through the AEditProperties parameter.

Tip

To change the active in-place editor type or its settings within an OnGetEditingProperties event handler in a safe manner, assign the Properties property value of an edit repository item to the AEditProperties parameter.