无法在表中存储数据

Question

我正在尝试将数据和图像插入表格但不能

我也没有收到任何错误，那么可能会出现什么问题呢？

我哪里错了？

当我开始调试时，字符串正在取每个值

这是我的代码

protected void btnsubmit_Click(object sender, EventArgs e)
{
    string un = TextBox1.Text;
    string pass = TextBox5.Text;
    string add = TextBox2.Text;
    string mob = TextBox3.Text;
    string sal = TextBox4.Text;
    string path = Server.MapPath("~/image/");

    if (FileUpload1.HasFile)
    {
        string file = FileUpload1.FileName;
        string ext = Path.GetExtension(file);
        if (ext == ".jpg" || ext == ".jpeg" || ext == ".png")
        {

            string concat = path + file;
            FileUpload1.SaveAs(concat);
            SqlConnection con = new SqlConnection("connectionstring");
            con.Open();
            SqlCommand cmd = new SqlCommand();
            cmd.Connection = con;
            cmd.CommandType = CommandType.Text;

            cmd.CommandText = "insert into exmpl values(@Username,@Address,@Mobno,@Salary,@Image,@Password)";
            cmd.Parameters.Add("@Username", SqlDbType.NVarChar).Value = un;
            cmd.Parameters.Add("@Address", SqlDbType.NVarChar).Value = add;
            cmd.Parameters.Add("@Mobno", SqlDbType.NVarChar).Value = mob;
            cmd.Parameters.Add("@Salary", SqlDbType.NVarChar).Value = sal;
            cmd.Parameters.AddWithValue("@Image", "~/image/" + file);
            cmd.Parameters.Add("@Password", SqlDbType.NVarChar).Value = pass;

            cmd.ExecuteNonQuery();
            con.Close();
            Label1.Text = "registered..login now";
        }

        else
        {

            Label1.Text = "invalid file";
        }

    }

    else
    {

        Label1.Text = "select file";
    }