Add (Sum) TextBox values on Button Click in Windows Forms Application using C# and VB.Net

maddyraf...

SOLVED CLOSED ACTIVE ANSWERED
User: maddyrafi
Posted: on Mar 16, 2022 01:54 AM
Forum: Windows Basics
Answer: 1
Views: 6259
Sample Code: Download

What is the error in this code?

using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace FirstConsoleApp
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                int input1 = Convert.ToInt32(textBox1.Text);
                int input2 = Convert.ToInt32(textBox2.Text);
                int result = input1 + input2;
                MessageBox.Show("Addition result = " + result.ToString());
            }
            catch (Exception ex)
            {

            }
        }
    }
}

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arjunv

0 6

Reply
ANSWER
User: arjunv
Replied: on Mar 16, 2022 07:56 AM
Modified: on Jun 11, 2022 08:21 AM
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Hi maddyrafi,

Please use int.Parse method for typecasting in numbers, refer below sample.

Code

private void Calculate(object sender, EventArgs e)
{
    int a = int.Parse(txtA.Text);
    int b = int.Parse(txtB.Text);
    txtTotal.Text = (a+b).ToString();
}

VB.Net

Private Sub Calculate(ByVal sender As Object, ByVal e As EventArgs)
    Dim a As Integer = Integer.Parse(txtA.Text)
    Dim b As Integer = Integer.Parse(txtB.Text)
    txtTotal.Text = (a + b).ToString()
End Sub

Screenshot

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Add (Sum) TextBox values on Button Click in Windows Forms Application using C# and VB.Net

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