How do I let users input strings into an array in windows form application?

Question

_{Tuesday, November 15, 2016 2:34 PM}

Hi 

I'm new to c# and all I can find to slowed this problem is in console but I need the user to input a name in a textbox and for that name to end up in a string array. So my question is how do I add the user input into a string array in Windows form application?

All replies (2)

_{Tuesday, November 15, 2016 2:45 PM | 1 vote}

Hi,

See the below code. Add a button and textbox in your form. Hope this helps you.

using System;
using System.Collections;
using System.Windows.Forms;

namespace ArrayListt
{
    public partial class Form1 : Form
    {
        ArrayList list = new ArrayList();

        public Form1()
        {
            InitializeComponent();
            
        }

        private void button1_Click(object sender, EventArgs e)
        {
            list.Add(textBox1.Text);
        }
    }
}

Thanks,
Sabah Shariq

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_{Tuesday, November 15, 2016 8:19 PM | 2 votes}

You generally want to use a List<string> over a string[] whenever you intend to add or remove data from the array dynamically and you don't know the number of items upfront. Please refer to the following thread at Stackoverflow for more information about this: http://stackoverflow.com/questions/434761/array-versus-listt-when-to-use-which

Adding a string to a List<string> is as simple as calling the Add method:

private readonly List<string> theStrings = new List<string>();
private void button1_Click(object sender, EventArgs e)
        {
            theStrings.Add(textBox1.Text);
        }

The difference between a List<string> and an ArrayList is that the former is generic and stores values of a specific type (like string) without having to cast the items to or from object. This is good for performance. Please refer to the following thread for more information about this: http://stackoverflow.com/questions/2309694/arraylist-vs-list-in-c-sharp

Hope that helps.

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