Writing Data to a View

The following syntax is used to update the value of a field in a view:

view_name.field_name = x

This syntax updates the value of field_name for the current record in view_name. If there is no current record, execution of this statement causes an error.

Here is sample code that updates the Population and Capital of New York State:

// Find New York State
view = "States"
rec = FindRecord(view + "|", "Name", {"New York"}, null)
// Change the Population and Capital
view.Population = 1234567
view.Capital = "Yonkers"

Here is a sample macro that loops over States in order of descending population, and fills in the field called Rank with the population ranking:

// First, create the view
view = OpenTable("State Data", "DBASE", "c:\\dbf\\states.dbf", ) + "|"
counter = 0
// Set the order in which to loop over the file
order = {{"Population", "Descending"}}
// Start the loop...
rec = GetFirstRecord(view, order)
while rec <> null do
// increment the counter
counter = counter + 1
// fill in the ranking
view.Rank = counter
// Here are alternate ways to do the same thing
// rank_str = "Rank"
// view_list = {"A", "B", view}
// view.(rank_str) = counter
// view_list[3].Rank = counter
// view_list[3].(rank_str) = counter
// Go on to the next state
rec = GetNextRecord(view, null, order)
end

In addition to the above syntax, the following GISDK function can be used to write data to a view: