By default, the C1FlexGrid control allows users to edit cells by typing into them. You can prevent users from editing the grid by setting the AllowEditing property to False. You can also prevent users from editing specific columns by settings the AllowEditing property to False. (When the grid is bound to a data source, it detects which columns are editable and automatically sets the AllowEditing property.)

To start editing a cell, the user can:

• Start typing into the cell. This replaces the contents of the cell.
• Press F2 or Enter. This puts the grid in edit mode and puts the current cell contents in the editor.
• Double-click a cell. This has the same effect as pressing F2, but the cursor appears where the cell is clicked.

The basic editing mode allows users to type values into the cells. If the column being edited has a specific data type, values entered by the user are converted into the proper data type automatically. If the user types a value that cannot be converted into the proper data type, the grid fires a GridError event and ignores the edits.

The basic editing is sufficient for many applications, but the C1FlexGrid has properties and events that allow you to control the editing process and provide selection lists, editing buttons, and advanced validation control.

Starting with version 2.5, the C1FlexGrid also has built-in support for external editors. This allows you to use any control as a grid editor (for example, you can now use the C1Input controls as grid editors).

These features are described in the following topics.