TCustomGrid.ColumnsChanged procedure

Declaration

procedure ColumnsChanged(aColumn: TGridColumn)

Arguments

Description

ColumnsChanged is procedure used to perform actions needed when one or more Columns in the grid are changed. AColumn contains the column affected by the change, or signals a change to multiple columns when its value is unassigned (contains Nil).

When AColumn is Nil, the row or column count and/or fixed row or fixed column count has been changed. When AColumn contains a valid TGridColumn instance, the modified column is located in the Columns collection and the VisualChange method is called.

ColumnsChanged is called from methods like: SetFixedCols, SetRowCount, and OnTitleFontChanged. It is also called when the Update method in Columns is called for the TGridColumns collection.

See also

• FixedCols
• RowCount
• Columns
• TGridColumns
• TGridColumn