PLH
Well-known member
Hello all, I have this app that I created a year ago is basically a dictionary that shows word's definitions. Now, it is using a MS access database and dataset which is in disconnected mode (I mean that it is not created in design time and it exist only in the run time.) To find a record that user selects a word in the list box I used a function that loops through the words column and returns the row number in the dataset and from there I get the definition. The problem is that if the database is too big it is going to take more time to find the word.
Questions:
1. Is any one knows how the row's find member works? Is it doing a binary search or it is finding directly by the primary key?
2. If row's find method is more effective, how can I use it in the disconnected mode? I tried to use it but I got an exception that says "The table does not have a primary key column. In the database I do have a primary key column but it seems that during the fill method it doesn't copy the primary key to the dataset's table.
How can I set the primary key in the dataset's table when the column already exists?
3. What would be the most effective way to get the row in the disconnected mode?
Thank u in advance!
Questions:
1. Is any one knows how the row's find member works? Is it doing a binary search or it is finding directly by the primary key?
2. If row's find method is more effective, how can I use it in the disconnected mode? I tried to use it but I got an exception that says "The table does not have a primary key column. In the database I do have a primary key column but it seems that during the fill method it doesn't copy the primary key to the dataset's table.
How can I set the primary key in the dataset's table when the column already exists?
3. What would be the most effective way to get the row in the disconnected mode?
Thank u in advance!
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