I am building a checkbox lists:
<asp:CheckBoxList ID="CheckBoxes" DataTextField="Value" DataValueField="Key" runat="server"></asp:CheckBoxList>
And trying to get the value's of the selected items:
List<Guid> things = new List<Guid>();
foreach (ListItem item in this.CheckBoxes.Items)
{
if (item.Selected)
things.Add(item.Value);
}
}
I get the errror
"The best overloaded method match for 'System.Collections.Generic.List.Add(System.Guid)' has some invalid arguments "
The 'thing' list is excepting a Guid value. You should convert item.value to a Guid value:
List<Guid> things = new List<Guid>();
foreach (ListItem item in this.CheckBoxes.Items)
{
if (item.Selected)
things.Add(new Guid(item.Value));
}
ListItem.Value is of type System.String, and you're trying to add it to a List<Guid>. You could try:
things.Add(Guid.Parse(item.Value));
That will work as long as the string value is parsable to a Guid. If that's not clear, you'll want to be more careful and use Guid.TryParse(item.Value).
If your List's Add method does accept GUID's (see the error message), but isn't accepting "item.value", then I'd guess item.value is not a GUID.
Try this:
...
things.Add(CTYPE(item.value, GUID))
...
