Converting list box Items to a String C#

Question

I'm writing a WPF application. How to Convert ListBox items to single string Value?

I have 1 Text Box, an ADD Button to add items to a List Box, and a SAVE Button to SAVE items in Console Window.

How can I do this?

Answer 1

//Concatenation of all items of list box

string allItems = string.Join(", ",listBox1.Items.OfType<object>());

//Concatenation of selected tiems of list box

string selectedItems= string.Join(", ",listBox1.SelectedItems.OfType<object>());

Answer 2

var listboxitems = listbox1.Items.Cast<ListBoxItem>().Select(p => p.Content as string);
string result= String.Join("|", listboxitems .ToArray());

This will place value1|value2|value3

Answer 3

On which ever Button Click you want to Convert that Items to single String value Add this piece of code :

 Stringbuilder sb =new StringBuilder();



 private void btn1_Click(object sender, RoutedEventArgs e)
    {
        //Suppose that ListBox name is listBox1

        for(int i=0;listBox1.Items.Count; i++)
        {  
           sb.Append(listBox1.Items[i].ToString());
        }
    }

use this Stringbuilder sb.ToString() to Your Text box

txtname.text =sb.ToString();

Answer 4

  ListBox listBox1 = new ListBox();
  for (int x = 1; x <= 5; x++)
  { 
    listBox1.Items.Add("Item " + x.ToString());
  }
  StringBuilder sb = new StringBuilder();
  foreach (var item in listBox1.Items)
  {
    sb.Append(item.ToString());
  }
  Console.WriteLine(sb.ToString());

Answer 5

您可以简单地尝试：

string[] listAsArray = listBoxPart.Items.OfType<string>().ToArray();

Answer 6

Add a new string content from your TextBox :

Assume that you have a TextBox name textBox , You can get string content of the textBox by Text property.

You have to create 2 Button (s).

Button ADD: To add the string from your TextBox to your ListBox

Button SAVE: To save the ListBox items to a Console Window See the code:

ListBoxItem item1 = new ListBoxItem();
item1.Content = textBox.Text;

listBox.Items.Add(item1);

// Do the same with item2, item 3,... item n

Show in a Console Window:

foreach (var item in listBox.Items)
{
    Console.WriteLine(item);
}