ASP.net - delete certain items from a DropDownList
I am using the following VB.net code to delete all the items in a DropDownList that
contain commas - the problem is that because items get deleted, the count of items
changes and the code errors out because it runs over the index count. Ho do I avoid this ?
For k As Integer = 0 To L.Items.Count - 1
s = L.Items(k).Text
If InStr(s, ",") > 0 Then
'Delete item because comma was in it
L.Items.Remove(L.Items.Fin
End If
Next
contain commas - the problem is that because items get deleted, the count of items
changes and the code errors out because it runs over the index count. Ho do I avoid this ?
For k As Integer = 0 To L.Items.Count - 1
s = L.Items(k).Text
If InStr(s, ",") > 0 Then
'Delete item because comma was in it
L.Items.Remove(L.Items.Fin
End If
Next
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dim int as integer = l.items.count
for i as integer = int - 1 to 0 step - 1
s = L.Items(i).Text ' This is supposed to be "i", not "k"
If InStr(s, ",") > 0 Then
'Delete item because comma was in it
L.Items.Remove(L.Items.Fin
End If
next
for i as integer = int - 1 to 0 step - 1
s = L.Items(i).Text ' This is supposed to be "i", not "k"
If InStr(s, ",") > 0 Then
'Delete item because comma was in it
L.Items.Remove(L.Items.Fin
End If
next
You could also rewrite it like this:
for k as integer = l.items.count - 1 to 0 step - 1
if l.items(k).text.contains("
l.items.remove(l.items(k)
end if
next
for k as integer = l.items.count - 1 to 0 step - 1
if l.items(k).text.contains("
l.items.remove(l.items(k)
end if
next
You could also rewrite it like this:
for k as integer = l.items.count - 1 to 0 step - 1
if l.items(k).text.contains("
l.items.remove(l.items(k)) ' can't type today... forgot to close parentheses here
end if
next
for k as integer = l.items.count - 1 to 0 step - 1
if l.items(k).text.contains("
l.items.remove(l.items(k)) ' can't type today... forgot to close parentheses here
end if
next
ASKER
worked well. Thansk
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for (int i = 0; i < ddl.Items.Count; i++)
{
ddl.SelectedIndex = i;
string str = ddl.SelectedItem.ToString(
for (int counter = i + 1; counter < ddl.Items.Count; counter++)
{
ddl.SelectedIndex = counter;
string compareStr = ddl.SelectedItem.ToString(
if (str == compareStr)
{
ddl.Items.RemoveAt(counter
counter = counter - 1;
}
}
}