Question

I have a dictionary myDataItems which contains string and double. I’m passing values to the dictionary from 2 textboxes, 1 textbox passes the string value, the other the double. I was wondering how I can get the Dictionary items displayed in a 3rd textbox(txtOutput) I’m using for output purposes?

public partial class Form1 : Form 
{
   private Dictionary<string, double> myDataItems = new Dictionary<string, double>();
   private string dataName;
   private double dataCost;

   private void dataItemSend_Click(object sender, EventArgs e)
   {
      dataName = dataNameInput.Text;
      dataCost = Convert.ToDouble(dataCostInput.Text);
      myDataItems.Add(dataName, dataCost);
      txtOutput.Text = myDataItems.ToString();
   }
}

Answer 1

A simple approach:

var lines = myDataItems.Select(kv => kv.Key + ": " + kv.Value.ToString());
txtOutput.Text = string.Join(Environment.NewLine, lines);

Remember to add using System.Linq;