CODEWITHSUNDEEP
c#asp.net
Aj_sari
Aj_sari

Reputation: 575

append ". " after selected item values of checkbox list

I have a check box list item with List items in it. When i save the form selected values should be save to database . See my logic.

    string Type = null;

    for (int i = 0; i < chbCourse.Items.Count; i++)
    {

        if (chbCourse.Items[i].Selected == true)
        {
            Type += chbCourse.Items[i].ToString() + ",";

        }

    }

It is working great but because of the "," which is i am putting between two values they are separated with each other, but at last item also it will append the "," . Is there any way to remove last "," or insert "." at last ","

Is there any logic for doing this?

Upvotes: 0

Views: 663

Answers (7)

Sam Neirinck
Sam Neirinck

Reputation: 278

The easiest way is to use String.Join:

string Type = String.Join(",", chbCourse.Items);

If "." is also required

string Type = String.Concat(String.Join(",", chbCourse.Items),".");

Upvotes: 1

Nikhil Agrawal
Nikhil Agrawal

Reputation: 48550

How about

string Type = null;

type = String.Join(",", 
                   chbCourse.Items.Where(Function(x) x => x.Selected)
                                  .Select(Function(y) y => y.ToString()).ToArray);

Upvotes: 0

Grant Winney
Grant Winney

Reputation: 66479

Join all selected items, using string.Join and LINQ:

Type = string.Join(",",
    chbCourse.Items.Cast<ListItem>().Where(x => x.Selected).Select(x => x.Text));

Since string.Join only adds the separator between items, it won't add an extra comma to the end.

(Also, calling ToString() on a ListItem displays the class type; you have to use the Text property.)

Upvotes: 4

Ankush Madankar
Ankush Madankar

Reputation: 3834

Do it like this for selected items:

string Type = string.Join(",", CheckBoxList1.Items.Cast<ListItem>().Where(a=>a.Selected).Select(a => a.Text));

if (!string.IsNullOrEmpty(Type)) // To add '.' at end
    Type = Type + ".";

Upvotes: 1

Zein Makki
Zein Makki

Reputation: 30042

    string Type = null;

    for (int i = 0; i < chbCourse.Items.Count; i++)
    {

        if (chbCourse.Items[i].Selected == true)
        {
            Type += chbCourse.Items[i].ToString() + ",";

        }
    }

    if(Type != null)
        Type = Type.TrimEnd(',');

Try not to use Class Names as variable names.

Upvotes: 0

Darj
Darj

Reputation: 1403

If I'd wanted to put dot (".") on the last character, then I would do:

for (int i = 0; i < chbCourse.Items.Count; i++)
{

    if (chbCourse.Items[i].Selected == true)
    {
        if (i == chbCourse.Items.Count - 1) Type += chbCourse.Items[i].ToString() + ".";
        else 
           Type += chbCourse.Items[i].ToString() + ",";

    }

}

Upvotes: 0

Royi Namir
Royi Namir

Reputation: 148644

void Main()
{
    var a="1,2,3,";
    a=a.TrimEnd(new [] {','});
    Console.WriteLine (a); //1,2,3

}

Upvotes: 1

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