compute_prefix


Description:

public string? compute_prefix (string key)

Computes the common prefix that is shared by all rows in this that start with key.

If no row matches key, null will be returned. Note that a text column must have been set for this function to work, see set_text_column for details.

Parameters:

this

the entry completion

key

The text to complete for

Returns:

The common prefix all rows starting with key or null if no row matches key.