I was doing an ITP project. I needed to add all the items in the listbox to a textbox. The code that i tried using was:
tbxReceipt.Text = "The items you purchased are:\r\n\r\n" + lbxItemBought.Items.ToString()
+ "\r\n\r\nYour total price was:" + lblLastCheckout.Text;
But when i use the code lbxItemBought.Item.ToString(), it comes up with the error:
System.Windows.Forms.ListBox+ObjectCollection.
I was wondering if there was another way to do it?
thanks
You need to iterate through listbox.
string value = "The items you purchased are:\r\n\r\n";
foreach (var item in lbxItemBought.Items)
{
value += "," + item.ToString();
}
value += "\r\n\r\nYour total price was:" + lblLastCheckout.Text ;
tbxReceipt.Text = value;
Firstly, if you are doing string manipulation with a loop, use a StringBuilder
Now try
StringBuilder a = new StringBuilder();
a.Append("The items you purchased are:\r\n\r\n");
foreach (var item in lbxItemBought.Items)
{
a.Append(item.ToString());
}
a.Append("\r\nYour total price was:");
a.Append(lblLastCheckout.Text);
tbxReceipt.Text = a.ToString();
That message is no error, it is just the string representation of the Items-property of your listbox.
When you want to get a concatenation of the item names (for example), you must iterate over the Items-collection, cast the single elements to the things you put into it and then concatenate a display string. For example, if the type of your items is SomeItem and it has a property like Name, you can use LINQ like this:
var itemNames = string.Join(", ", lbxItemBought.Items
.Cast<SomeItem>()
.Select(item => item.Name));
tbxReceipt.Text = "The items you purchased are:\r\n\r\n" + itemNames + "\r\n\r\nYour total price was:" + lblLastCheckout.Text;
string instead of SomeItem, for example.string result = string.Empty;
foreach(var item in lbxItemBought.Items)
result + = item.ToString()+Environment.NewLine;
txtReceipt.Text = result;
