Item Contains

[Chris]

There is a Contains method for the items collection that checks for a ListViewDataItem, however I want to check for the existance of a specific value. I want to insert a new item into the listview but only if a certain value does not exist in one of the columns. Is there any built in functionality for this? Or do i have to iterate through the items collection myself and compare against that column value?

Thanks.

[Stefan]

Hello Chris,

Thank you for writing.

Currently, the only possible way to achieve what you want is to iterate the items and make the comparison yourself. Alternatively, if you are using .NET3.5 or above, you can use LINQ:

List<ListViewDataItem> contains = radListView1.Items.Where(x => object.Equals(x[0],"Row 2") || object.Equals(x[1],"Row 2")).ToList();
          if (contains.Count > 0)
          {
              //the item exists in the collection
          }

I hope this helps.
 
Kind regards,
Stefan
the Telerik team

[Chris]

Thanks, i did end up just iterating through the items collection.