C# – how to add items from listbox to textbox c#

clistboxtextbox

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

Best Answer

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;

Related Solutions

C# – How to cast int to enum

From an int:

YourEnum foo = (YourEnum)yourInt;

From a string:

YourEnum foo = (YourEnum) Enum.Parse(typeof(YourEnum), yourString);

// The foo.ToString().Contains(",") check is necessary for enumerations marked with an [Flags] attribute
if (!Enum.IsDefined(typeof(YourEnum), foo) && !foo.ToString().Contains(","))
{
    throw new InvalidOperationException($"{yourString} is not an underlying value of the YourEnum enumeration.")
}

Update:

From number you can also

YourEnum foo = (YourEnum)Enum.ToObject(typeof(YourEnum) , yourInt);

C# – Create Generic method constraining T to an Enum

Since Enum Type implements IConvertible interface, a better implementation should be something like this:

public T GetEnumFromString<T>(string value) where T : struct, IConvertible
{
   if (!typeof(T).IsEnum) 
   {
      throw new ArgumentException("T must be an enumerated type");
   }

   //...
}

This will still permit passing of value types implementing IConvertible. The chances are rare though.

Best Answer

Related Solutions

C# – How to cast int to enum

C# – Create Generic method constraining T to an Enum

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