ASP.Net GridView: Display Checked column value in Label using Javascript

Hi georgeacuster8937,

Plese refer below sample try to implement in the same way.

Database

I have made use of the following table Customers with the schema as follows. 

I have already inserted few records in the table.

You can download the database table SQL by clicking the download link below.

Download SQL file

HTML

<form id="form1" runat="server">
    <asp:GridView ID="gvCustomers" runat="server" AutoGenerateColumns="false">
        <Columns>
            <asp:BoundField HeaderText="CustomerId" DataField="CustomerId" />
            <asp:BoundField HeaderText="Name" DataField="Name" />
            <asp:BoundField HeaderText="Country" DataField="Country" />
            <asp:TemplateField HeaderText="Checkbox">
                <ItemTemplate>
                    <asp:CheckBox runat="server" ID="chkBox1" AutoPostBack="false" onclick="OnChanged(this);"  />
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
    <asp:Label ID="lblCountry" runat="server"></asp:Label>
</form>
<script type="text/javascript">
    function OnChanged(checkbox) {
        var lblCountry = document.getElementById("<%= lblCountry.ClientID %>");
        if (checkbox.checked) {
                
            lblCountry.innerHTML = checkbox.parentNode.previousSibling.innerHTML;
        }
        else {
               
            lblCountry.innerHTML = "";
        }
    }
</script>

Namespaces

C#

using System.Configuration;
using System.Data.SqlClient;

VB.Net

Imports System.Configuration
Imports System.Data.SqlClient

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    if(!this.IsPostBack)
    {
        this.BindGridView();
    }
}

private void BindGridView()
{
    string conString = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
    using(SqlConnection con = new SqlConnection(conString))
    {
        using (SqlCommand cmd = new SqlCommand("SELECT CustomerId, Name, Country FROM Customers", con))
        {
            con.Open();
            gvCustomers.DataSource = cmd.ExecuteReader();
            gvCustomers.DataBind();
            con.Close();
        }
    }
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    If Not Me.IsPostBack Then
        Me.BindGridView()
    End If
End Sub

Private Sub BindGridView()
    Dim conString As String = ConfigurationManager.ConnectionStrings("constr").ConnectionString
    Using con As SqlConnection = New SqlConnection(conString)
        Using cmd As SqlCommand = New SqlCommand("SELECT CustomerId, Name, Country FROM Customers", con)
            con.Open()
            gvCustomers.DataSource = cmd.ExecuteReader()
            gvCustomers.DataBind()
            con.Close()
        End Using
    End Using
End Sub

Screenshot