C# - How to Make the ComboBox ' Values Distinct (Unique) without using any database?

Question

i have the following code with me- it populates all the values and i want the distinct one. please help me to resolve it.
THANKS IN ADVANCE....

foreach (string file in System.IO.Directory.GetFiles(a))

            {

string asd = Path.GetFileNameWithoutExtension(file);

                string[] str = asd.Split('_');

string sam1 = str[0];

                string sam2 = str[1];

                combo1.Items.Add(sam1);

                combo2.Items.Add(sam2);

            }

Answer 1

Try:

foreach (string file in System.IO.Directory.GetFiles(a))

{

   string asd = Path.GetFileNameWithoutExtension(file);

   string[] str = asd.Split('_');

   string sam1 = str[0];

   string sam2 = str[1];

   if(!combo1.Items.Contains(sam1)) combo1.Items.Add(sam1);

   if(!combo2.Items.Contains(sam2)) combo2.Items.Add(sam2);

}

Answer 2

Try this one, you may like more

DropDown.DAtraSource=Directory.GetFiles(@"F:\For Blogs\RNDC").Select(x => Path.GetFileNameWithoutExtension(x)).Distinct();

Check this is correct answer if it helped