c# access listbox

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C#

MS-Access

ListBox

i want to delete from database(access) multiple records which are matching to a listbox(in c#)
so how can i do that?

Posted 23-Jan-11 23:03pm

bachasafyan

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Michael Waguih 24-Jan-11 5:06am

Do you mean you want to delete the selected items in the list box from the database ?

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Corinna John · Answer 1 · 2011-01-23T23:56:00

The listbox stores only plain text, so you have to store the relevant information about your records in another list or in a dataset. As long as your listbox is not sorted (that means, listbox and objects list are in same order) you can do something like that:

C#

for(int i=0; i<listbox.Count; i++)
{
  // for another list
  // id = yourObjectList[i].id;

  //for a dataset
  id = yourDataset.Rows[i][indexOfId];

  execSql("delete from yourTable where yourId="+id);
}

P.S.: As your list is a list of unique filenames, you can try this:

string files = string.Empty;
string separator = "";
for each(item in listbox.items)
{
  files += separator + "'" + item + '"';
  separator = ", ";
}

sql = "delete from yourTable where filename in ("+files+")";
execSql(sql);

m@dhu · Answer 2 · 2011-01-23T23:56:00

If you want to delete selected listbox items

foreach (ListItem item in ListBox1.Items)
                {
                    if (item.Selected == true && item == valuefromdb)
                    {                        
                       //code to delete from db 
                    }
                }

If you want to delete matching items in listbox from db then

foreach (ListItem item in ListBox1.Items)
                {
                  
                    if (item == valuefromdb)
                    {
                        //code to delete from db
                    }
                }

c# access listbox

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