Select listbox item if contain a string in asp.net using c#

Question

I'm trying to select listbox item if contains a specific string. Here is my code:

string SearchDomain="youdial.in";
for (int i = 0; i < ListBox2.Items.Count; i++)
            {
                var UrlList = new Uri(ListBox2.Items[i].ToString());
                var UrlList = UrlList.Host;
                if (UrlList == SearchDomain)
                {
                    ListBox2.SelectedIndex = i;
                    urllbl.Text = ListBox2.SelectedItem.ToString();
                    return;
                }
            }

If ListBox2 have more than 1 matched results than above code select last matched item, but i want to select first matched item. e.g if Query match with 3rd, 7th and 9th item, I want to get the value of 3rd item. Thanks in Advance, sorry for my bad English.

As an aside, this code will throw an exception if there is no matching element as you're doing i <= ListBox2.Items.Count. you're lucky it didn't do so before. you're looking for i < ListBox2.Items.Count — Ousmane D.
as for "If ListBox2 have more than 1 matched results than above code select last matched item" . I don't see how that's possible as you're iterating sequentially from the first index to the last. — Ousmane D.
Again, your code doesn't even compile as you cannot compare a type URI and a string like this --> if (UrlList == SearchDomain). — Ousmane D.
#Aomine I don't know how is this possible, My question updated with output image. — Narender Godara

Liju L Liju L · Accepted Answer · 2018-03-05T15:11:05

Just change return; to break; Break statement will stop the for loop from executing further.

string SearchDomain="youdial.in";
for (int i = 0; i < ListBox2.Items.Count; i++)
            {
                var UrlList = new Uri(ListBox2.Items[i].ToString());
                var UrlList = UrlList.Host;
                if (UrlList == SearchDomain)
                {
                    ListBox2.SelectedIndex = i;
                    urllbl.Text = ListBox2.SelectedItem.ToString();
                    break;
                }
            }

Select listbox item if contain a string in asp.net using c#

2 Answers