Add value to asp:DropDownList dynamically (VB.net)

<%@ Page Language="VB" %>
<script runat="server">
    Dim ColorList(6) as String
    Dim FontList as new ArrayList()
    
    Sub Page_Load
      ColorList(0) = "Red"
      ColorList(1) = "Orange"
      ColorList(2) = "Yellow"
      ColorList(3) = "Green"
      ColorList(4) = "Blue"
      ColorList(5) = "Indigo"
      ColorList(6) = "Violet"
    
      FontList.Add("Times New Roman")
      FontList.Add("Arial")
      FontList.Add("Verdana")
      FontList.Add("Comic Sans MS")
    
      If Not Page.IsPostback
        Dim ColorName as String
    
        For Each ColorName in ColorList
          ddlColorList.Items.Add(ColorName)
        Next
    
        ddlFontList.DataSource = FontList
        ddlFontList.DataBind()
    
      End If
    End Sub
    
    Sub btnSelectColor_Click(sender As Object, e As EventArgs)
      lblOutputMessage.Text = "You selected " & _
        ddlColorList.SelectedItem.Value & " text written in " & _
        ddlFontList.SelectedItem.Value
      lblOutputMessage.ForeColor = _
        System.Drawing.Color.FromName(ddlColorList.SelectedItem.Text)
      lblOutputMessage.Font.Name = _
        ddlFontList.SelectedItem.Text
    
    End Sub
    
    Sub btnAddFont_Click(sender As Object, e As EventArgs)
      FontList.Add(txtAddFont.Text)
    
      ddlFontList.DataSource = FontList
      ddlFontList.DataBind()
    End Sub

</script>
<html>
<head>
</head>
<body>
    <form runat="server">
        <p>
            Select a color from the list:<asp:DropDownList id="ddlColorList" runat="server"></asp:DropDownList>
        </p>
        <p>
            Then select a font sytle from the list: 
            <asp:DropDownList id="ddlFontList" runat="server"></asp:DropDownList>
        </p>
        <p>
            &nbsp;<asp:Button id="btnSelectColor" onclick="btnSelectColor_Click" runat="server" Text="Click here!"></asp:Button>
        </p>
        <p>
            <asp:Label id="lblOutputMessage" runat="server"></asp:Label>
        </p>
        <p>
            Enter a new font for the list:<asp:TextBox id="txtAddFont" runat="server"></asp:TextBox>
            <asp:Button id="btnAddFont" onclick="btnAddFont_Click" runat="server" Text="Add New Font"></asp:Button>
        </p>
    </form>
</body>
</html>

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Add value to asp:DropDownList dynamically (VB.net) : DropDownList « Asp Control « ASP.Net

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