TdxGanttControlViewSheetOptions.AddExtendedAttributeColumns Method

Appends custom fields to a sheet column collection.

Declaration

procedure AddExtendedAttributeColumns; overload;

Remarks

Call this procedure to populate a column collection with the all custom fields available for creation. The table below lists the maximum number of fields that you can create for each field type:

Field Type	Maximum Number
Cost	10
Date
Duration
Finish
Start
Flag	20
Number
Text	30

Note that added fields are hidden. Set a column‘s Visible property value to True to display the corresponding column in a sheet.

You can use the overridden version of the AddExtendedAttributeColumns procedure to add custom fields of the specified type.