Addition of Three Numbers in ASP.NET

In this article, I would like to share with you a sample program to ask the user to give three numbers and then it will compute the total sum of the three numbers using ASP.NET I am using VB.NET in writing the codes in this program. I am using Visual Studio 2010 Express Edition as my tool.

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Sample Program Output

Program Listing

Default.aspx.vb

Public Class _Default

    Inherits System.Web.UI.Page

    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click

        Dim a, b, c, sum As Integer

        a = Val(TextBox1.Text)

        b = Val(TextBox2.Text)

        c = Val(TextBox3.Text)

        sum = (a + b + c)

        TextBox4.Text = Val(sum)

    End Sub

    Protected Sub Button2_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button2.Click

        TextBox1.Text = ""

        TextBox2.Text = ""

        TextBox3.Text = ""

        TextBox4.Text = ""

        TextBox1.Focus()

    End Sub

End Class

DOWNLOAD SOURCE CODE HERE