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How to create assembly in VB.NET

Posted by Dea Saddler in Articles | Assemblies in VB.NET on May 11, 2011

Tags: Assembly, How to Create Assembly, VB.NET, VB.NET article, VB.NET tutorial

In this article you learned that how you can create assembly.

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Download Files:

assembly.zip

Reader Level: Beginner

Introduction

An Assembly is the building block of a .net application. It is a self describing collection of code, resources, metadata. An Assembly is a compiled and versioned collection of code and metadata that forms an atomic functional unit. Assembly takes the form of a Dynamic Link Library (.dll) or Executable programe file (.exe) but they differ as they contain the information found in a type library and the information about everything else needed to use an application or component.

Steps for creating an assembly

Create a (web/windows/console/class Library) project in vs.net.
Then add your code as we add below.
Add the below code in your Default.aspx page.

<%@ Page Title="Home Page" Language="vb" AutoEventWireup="false"
    CodeBehind="Default.aspx.vb" Inherits="bulletedlist._Default" %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to Use BulletedList and Bullet Style Property</title>
</head>
<body>
    <form id="form1" runat="server">
    <div style="width: 478px">
        <asp:BulletedList ID="BulletedList1" runat="server">
            <asp:ListItem>Lesson 1</asp:ListItem>
            <asp:ListItem>Lesson 2</asp:ListItem>
            <asp:ListItem>Lesson 3</asp:ListItem>
            <asp:ListItem>Lesson 4</asp:ListItem>
            <asp:ListItem>Lesson 5</asp:ListItem>
        </asp:BulletedList>
        <br />
        Bullet Style<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True">
            <asp:ListItem>Numbered</asp:ListItem>
            <asp:ListItem>Circle</asp:ListItem>
            <asp:ListItem>Square</asp:ListItem>
            <asp:ListItem>LowerRoman</asp:ListItem>
            <asp:ListItem>UpperAlpha</asp:ListItem>
            <asp:ListItem>UpperRoman</asp:ListItem>
        </asp:DropDownList>
        <br />
    </div>
    </form>
</body>
</html>
Then write the code for the code behind file.

    Protected Sub DropDownList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles
    DropDownList1.SelectedIndexChanged
        If DropDownList1.Text = "Numbered" Then
            BulletedList1.BulletStyle = BulletStyle.Numbered
        ElseIf DropDownList1.Text = "Circle" Then
            BulletedList1.BulletStyle = BulletStyle.Circle
        ElseIf DropDownList1.Text = "Square" Then
            BulletedList1.BulletStyle = BulletStyle.Square
        ElseIf DropDownList1.Text = "LowerRoman" Then
            BulletedList1.BulletStyle = BulletStyle.LowerRoman
        ElseIf DropDownList1.Text = "UpperAlpha" Then
            BulletedList1.BulletStyle = BulletStyle.UpperAlpha
        ElseIf DropDownList1.Text = "UpperRoman" Then
            BulletedList1.BulletStyle = BulletStyle.UpperRoman
        End If
    End Sub
Now compile your application by choosing Build from the menu.
When you build the application you will find a bin directory under your Root directory. The bin directory will contain a(.dll file )this .dll file is called the ASSEMBLY.

You can see the assembly in assembly.zip attachment.