listview

[John Robles]

how do you get/retrieve the values of the items in the listview?

 

i'm doing a sales/inventory system and i use a listview control with columnheaders "qty"," item desc.", "unit price", and "amount". i have a command button to add all the items in the listview control. The way i want the program to work is if i press the purchase command button. each item in the "qty" column will be subtracted from the respective field in the database. How would i do that? Please provide the specific codes that i would use. i would really appreciate it.

[divil]

I don't know how you're doing the database side of things, but to iterate through a listview use the following code:

 

Dim l As ListViewItem

For Each l In ListView1.Items
   'Do something with l.SubItems(1).Text, the first column, here
Next l

[John Robles]

got it, thanks! another question... how would you retrive values from each row starting from the first until the row is empty

[Leeus]

I used that code and on the first line of the loop (For Each l In ListView1.Items

) I get the following error:

 

An unhandled exception of type 'System.InvalidCastException' occurred in RelayCrawler.exe

 

Additional information: Specified cast is not valid.

 

I'm going crazy!

[divil]

You declared l wrong.

[Leeus]

what does it need to be then?