Display button based on condition false or true in table

This is the code i tried, but not working

 protected void Page_Load(object sender, EventArgs e)
{
{


if (!string.IsNullOrEmpty(Session["UserName"].ToString()))
{
string username = Session["UserName"].ToString();
Getfollower(username);
}
}
}
public void Getfollower(string username)
{
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["CONNECTION"].ConnectionString);
SqlCommand cmd = new SqlCommand("SELECT * FROM USERFollow WHERE FriendUserName =@FriendUserName", con);
cmd.Parameters.AddWithValue("@FriendUserName", Session["UserName"].ToString());
cmd.Parameters.AddWithValue("@Id", Request.QueryString["Id"].ToString());
// cmd.Parameters.AddWithValue("@UserName", username1);
// cmd.Parameters.AddWithValue("@FriendUserName", username1);
con.Open();
SqlDataReader dr = cmd.ExecuteReader();
string userName = username.Trim();
string followStatus = string.Empty;
string friendUserName = username.Trim();

// string userName = username1.Trim();
// string friendUserName2 = string.Empty;
// string followStatus2 = string.Empty;
while (dr.Read())
{
userName = dr["UserName"].ToString().Trim();
followStatus = dr["FollowStatus"].ToString().Trim();
friendUserName = dr["FriendUserName"].ToString().Trim();

}

if ((userName.ToLower() != friendUserName) && (followStatus.ToLower() == "true"))
{
btnUnFollow.Visible = true;
btnFollow.Visible = false;
}
else
{
btnUnFollow.Visible = false;
btnFollow.Visible = true;
}

// while (dr.Read())
{
//userName = dr["UserName"].ToString().Trim();
//followStatus = dr["FollowStatus"].ToString().Trim();
//friendUserName = dr["UserName"].ToString().Trim();


if ((userName.ToLower() != friendUserName) && (followStatus.ToLower() == "false"))
{
btnUnFollow.Visible = false;
btnFollow.Visible = true;
}
else
{
btnUnFollow.Visible = true;
btnFollow.Visible = false;
}
con.Close();




{

 

 

 

This is the table for USERFollow

 

 SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

CREATE TABLE [dbo].[USERFollow](
[Id] [int] IDENTITY(1,1) NOT NULL,
[UserName] [nvarchar](500) NULL,
[FriendUserName] [nvarchar](500) NULL,
[FollowStatus] [bit] NULL,
[BlockUserStatus] [bit] NULL,
[SendDate] [datetime] NULL,
CONSTRAINT [PK_USERFollow] PRIMARY KEY CLUSTERED
(
[Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO

ALTER TABLE [dbo].[USERFollow] ADD CONSTRAINT [DF_USERFollow_CommunityStatus] DEFAULT ((0)) FOR [FollowStatus]
GO

ALTER TABLE [dbo].[USERFollow] ADD CONSTRAINT [DF_USERFollow_Status] DEFAULT ('false') FOR [BlockUserStatus]
GO

ALTER TABLE [dbo].[USERFollow] ADD CONSTRAINT [DF_USERFollow_SendDate] DEFAULT (getdate()) FOR [SendDate]
GO


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