c#如何插入数据库

我需要在这方面的帮助，我插入文件目录到数据库中，但它没有考虑到txtStoryTitle。数据库中的文本，例如，如果我在txtStoryTitle中输入HelloWorld。它在DB中显示为Images/Story//(filename)而不是Images/Story/HelloWorld/(filename)。我正在使用MySQL(工作台)。

请给我一个建议/解决方案，提前感谢!

部分代码如下:

    protected void AjaxFileUpload1_UploadComplete(object sender, AjaxControlToolkit.AjaxFileUploadEventArgs e)
    {
        EnsureDirectoriesExist();

        String filepathImage = (@"Images/Story/" + txtStoryTitle.Text + "/" + e.FileName);

        AjaxFileUpload1.SaveAs(Server.MapPath(filepathImage));

        Session["filepathImage"] = filepathImage;
    }
   public void EnsureDirectoriesExist()
    {
        if (!System.IO.Directory.Exists(Server.MapPath(@"Images/Story/" + txtStoryTitle.Text + "/")))
        {
            System.IO.Directory.CreateDirectory(Server.MapPath(@"Images/Story/" + txtStoryTitle.Text + "/"));
        }
    }
 protected void btnDone_Click(object sender, EventArgs e)
    {
        if (Session["filepathImage"] != null)
        {
            string filepathImage = Session["filepathImage"] as string;
            act.ActivityName = dropListActivity.SelectedItem.Text;
            act.Title = txtStoryTitle.Text;
            act.FileURL = filepathImage;
            daoStory.Insert(act);
            daoStory.Save();
        }