Asp.net: add items to checkboxlist code behind

In this article I am going to explain how to add items to checkboxlist code behind in asp.net

Implementation:

HTML Markup:

<fieldset style="width:400px">

            <legend>Add items to checkboxlist </legend>

            <asp:CheckBoxList ID="chboption" runat="server"></asp:CheckBoxList>

        <asp:TextBox ID="txtoption" runat="server"></asp:TextBox><asp:Button ID="btnoption" runat="server" Text="btnsubmit" OnClick="btnoption_Click" />

        </fieldset>

Add items to checkboxlist

C# Code:

protected void btnoption_Click(object sender, EventArgs e)

    {

        chboption.Items.Add(new ListItem(txtoption.Text));

    }

VB.net Code:

Protected Sub btnoption_Click(sender As Object, e As EventArgs) Handles btnoption.Click

        chboption.Items.Add(New ListItem(txtoption.Text))

    End Sub