How to modify this checkbox inside the GridView?

I have the following database design:
 
Employee Table: Username, Name, JobTitle, BadgeNo, IsActive, DivisionCode
Divisions Table: SapCode, DivisionShortcut
 

And I have a GridView that I am using it to add, delete and update/edit the employees information. This information is employee Username, Name, BadgeNo, JobTitle, IsActive and the DivisionShortcut. ***IsActive is a flag that indicates if the employee is available or in an assignment***. I made it as a checkbox and the column should show two values; Active and Inactive. In the Edit mode, the Checkbox will be displayed. If it is checked, then it means the employee is avaiable, otherwise it is inactive.
 
I wrote the code and everything works fine, but now I am facing two problems and I don't know how to make them work with my code.
 
1. The GridView shows True or False instead of Active and Inactive and I don't know why.
2. In the Edit mode, the checkbox will be displayed and the values (Active or Inactive) will be displayed besides to it and it shouldn't be displayed. I just want the checkbox to be displayed.
 

**So how to modify them?**
 

ASP.NET code:

    <%-- GridView for User Management Subsystem --%>
        <asp:GridView ID="GridView1" runat="server" AllowSorting="True" 
            AutoGenerateColumns="False" DataKeyNames="Username" 
            DataSourceID="SqlDataSource1" OnRowDataBound="GridView1_RowDataBound" BorderWidth="1px" BackColor="#DEBA84" 
             CellPadding="3" CellSpacing="2" BorderStyle="None" 
             BorderColor="#DEBA84">
            <FooterStyle ForeColor="#8C4510" 
              BackColor="#F7DFB5"></FooterStyle>
            <PagerStyle ForeColor="#8C4510" 
              HorizontalAlign="Center"></PagerStyle>
            <HeaderStyle ForeColor="White" Font-Bold="True" 
              BackColor="#A55129"></HeaderStyle>
            <Columns>
                <asp:CommandField ButtonType="Image" ShowEditButton="true" ShowCancelButton="true"
                                EditImageUrl="Images/icons/edit24.png" UpdateImageUrl="Images/icons/update24.png" 
                                CancelImageUrl="Images/icons/cancel324.png" />
 
                <asp:TemplateField HeaderText="Division">
                    <ItemTemplate>
                        <%# Eval("DivisionShortcut")%>
                    </ItemTemplate>
                    <EditItemTemplate>
                        <asp:DropDownList ID="DivisionsList" runat="server" DataSourceID="DivisionsListDataSource"
                                          DataTextField="DivisionShortcut" DataValueField="SapCode"
                                          SelectedValue='<%# Bind("DivisionCode")%>'>
                        </asp:DropDownList>
                    </EditItemTemplate>
                </asp:TemplateField>
 
                <asp:BoundField DataField="Username" HeaderText="Network ID" ReadOnly="True" 
                    SortExpression="Username" />
                    
                <asp:TemplateField HeaderText="Name">
                    <ItemTemplate>
                        <%# Eval("Name")%>
                    </ItemTemplate>
                    <EditItemTemplate>
                        <asp:TextBox ID="txtEmployeeName" runat="server" Text='<%# Bind("Name")%>' />
                    </EditItemTemplate>
                </asp:TemplateField>
 
                <asp:TemplateField HeaderText="Job Title">
                    <ItemTemplate>
                        <%# Eval("JobTitle")%>
                    </ItemTemplate>
                    <EditItemTemplate>
                        <asp:TextBox ID="txtJobTitle" runat="server" Text='<%# Bind("JobTitle")%>' />
                    </EditItemTemplate>
                </asp:TemplateField>
 
                <asp:TemplateField HeaderText="Badge No.">
                    <ItemTemplate>
                        <%# Eval("BadgeNo")%>
                    </ItemTemplate>
                    <EditItemTemplate>
                        <asp:TextBox ID="txtBadgeNo" runat="server" Text='<%# Bind("BadgeNo")%>' />
                    </EditItemTemplate>
                </asp:TemplateField>
 
                <asp:TemplateField HeaderText="Is Active?">
                    <ItemTemplate>
                        <asp:Label ID="lblIsActive" runat="server" Text='<%# Eval("IsActive")%>'></asp:Label>
                    </ItemTemplate>
                    <EditItemTemplate>
                        <asp:CheckBox ID="isActive" runat="server" 
                                      AutoPostBack="true" OnCheckedChanged="isActive_OnCheckedChanged"
                                      Checked='<%# Convert.ToBoolean(Eval("IsActive")) %>'
                                      Text='<%# Eval("IsActive")%>'/>
                    </EditItemTemplate>
                </asp:TemplateField>
                
                <asp:TemplateField HeaderText="Delete?">
                    <ItemTemplate>
                        <span  önclick="return confirm('Are you sure to Delete the record?')">
                            <asp:ImageButton ID="lnkB" runat="server" ImageUrl="Images/icons/delete24.png" CommandName="Delete" />
                        </span>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>

 
Code-behind:

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
 
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        // here you will select the IsActive column and modify it's text
        Label isActive=new Label();
        isActive = (Label) e.row.FindControl("lblIsActive");
        // after getting the reference set its text
        isActive.Text="Active or InActive";            
 
    }
}
 
    //for updating the (IsActive) column using checkbox inside the GridView
        protected void isActive_OnCheckedChanged(object sender, EventArgs e)
        {
            CheckBox chkStatus = (CheckBox)sender;
            GridViewRow gvrow = (GridViewRow)chkStatus.NamingContainer;
    
            //Get the ID which is the NetworkID of the employee
            string username = gvrow.Cells[2].Text;
            bool status = chkStatus.Checked;
    
            string connString = ConfigurationManager.ConnectionStrings["UsersInfoDBConnectionString"].ConnectionString;
            SqlConnection conn = new SqlConnection(connString);
    
            string updateIsActive = "UPDATE Employee SET IsActive = @IsActive WHERE Username = @Username";
    
            SqlCommand cmd = new SqlCommand(updateIsActive, conn);
    
            cmd.Parameters.AddWithValue("@IsActive", status);
            cmd.Parameters.AddWithValue("@Username", username);
    
            try
            {
                conn.Open();
                cmd.ExecuteNonQuery();
                conn.Close();
            }
            catch (SqlException se)
            {
                throw se;
            }
            finally
            {
                cmd.Dispose();
                conn.Close();
                conn.Dispose();
            }
        }