TDBCheckBox.UpdateData procedure

Declaration

procedure UpdateData(Sender: TObject)

Arguments

Description

UpdateData is a procedure used to update the linked dataset for the control when the value in the State property has been changed.

When State contains cbGrayed, the Field in the linked dataset is cleared. For other values, the Field data type determines whether one of the values in Checked, ValueChecked, or ValueUnchecked is used. If the Field is a Boolean data type, the value in Checked is stored to the linked dataset. Otherwise, the text for the field is updated using the value from ValueChecked (when Checked is True) or ValueUnchecked (when Checked is False).

UpdateData is used as the OnUpdateData event handler in the internal TFieldDataLink instance for the class.

See also

• State
• Checked
• DataField
• DataSource
• Field
• FieldName
• OnUpdateData
• TDataLink.DataSource