Display selected location after Login in ASP.Net DropDownList using C#

Hi micah,

Check the example.

HTML

Login

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    <asp:Login ID="LoginINNOVATION" runat="server" OnAuthenticate="ValidateUser" Width="100%">
        <LayoutTemplate>
            <asp:Literal ID="ltText" runat="server" EnableViewState="False"></asp:Literal>
            <div id="loginForm">
                <div class="form-group">
                    <label class="control-label" for="username">
                        Username
                    </label>
                    &nbsp;<asp:TextBox ID="UserName" runat="server" placeholder="Your UserName" autofocus="" class="form-control" required=""></asp:TextBox>
                    <span class="help-block small">Your unique username to app</span>
                </div>
                <div class="form-group">
                    <label class="control-label" for="password">Password</label>
                    <asp:TextBox ID="Password" autocomplete="off" runat="server" placeholder="******" class="form-control" title="Please enter your password" required="" value="" name="password" TextMode="Password"></asp:TextBox>
                    <span class="help-block small">Your strong password</span>
                </div>
                <div class="form-group">
                    <label class="control-label">Role</label>
                    <asp:DropDownList ID="Location" runat="server" CssClass="form-control pro-edt-select form-control-primary" Width="100%">
                        <asp:ListItem>--Select Department--</asp:ListItem>
                        <asp:ListItem>Location1</asp:ListItem>
                        <asp:ListItem>Location2</asp:ListItem>
                    </asp:DropDownList>
                    <span class="help-block small">Your role </span>
                </div>
                <div class="checkbox login-checkbox">
                    <asp:CheckBox ID="RememberMe" runat="server" Text="Remember me next time." class="i-checks" />
                    <p class="help-block small">(if this is a private computer)</p>
                </div>
                <asp:Button ID="LoginButton" runat="server" CommandName="Login" Text="Sign In" class="btn btn-success btn-block loginbtn" type="button" />
            </div>
        </LayoutTemplate>
    </asp:Login>
</asp:Content>

Location

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    <div class="tab-content-details shadow-reset">
        <asp:DropDownList runat="server" ID="ddlLocations">
        </asp:DropDownList>
    </div>
</asp:Content>

Code

Login

protected void ValidateUser(object sender, EventArgs e)
{
    DropDownList ddllocation = LoginINNOVATION.FindControl("Location") as DropDownList;
    string location = ddllocation.SelectedItem.Text.Trim();
    Session["Location"] = location;
    // Login validation code.
    Response.Redirect("~/LocationPage.aspx");
}

Location

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        if (Session["Location"] != null)
        {
            this.ddlLocations.Items.Clear();
            this.ddlLocations.Items.Insert(0, new ListItem(Session["Location"].ToString(), Session["Location"].ToString()));
        }
    }
}