How do I upload the video and retrieve the path from SQL server

// Backend code for uploading file and saving path
if (fileupload1.HasFile && fileupload1.PostedFile != null && fileupload1.PostedFile.FileName != "")
{
	Bal objBal = new Bal();
	try
	{
		string filename = Path.GetFileName(fileupload1.PostedFile.FileName);
		fileupload1.PostedFile.SaveAs(Server.MapPath("~/UploadedVideos/" + filename));
		string filepathtostore = string.Format("UploadedVideos/"+filename);
		objBal.VideoFilePath = filepathtostore;
		objBal.Description = txtDesc.Text.Trim();
		objBal.Course = dropdownlist1.SelectedItem.ToString();
		objBal.filetype = dropdownlist2.SelectedItem.ToString();
		int result = objBal.AdminUploadPhysicsVideoBalFunc(objBal);
		if(result>0)
		{
			labelmsg.Visible = true;
			labelmsg.ForeColor = System.Drawing.Color.Green;
			labelmsg.Text = "Video File Updated Successfully";
		}
		else
		{
			labelmsg.Visible = true;
			labelmsg.ForeColor = System.Drawing.Color.Red;
			labelmsg.Text = "Can't Upload File Try Again.";
		}
		BindVideoPanel();
	}
	catch(Exception ex)
	{
		throw ex;
	}
	finally
	{
		objBal = null;
	}
}
 
// Backend code for binding Gridview
private void BindVideoPanel() 
{
	DataSet ds = new DataSet();
	Bal objBal = new Bal();
	try
	{
		ds = objBal.BindVideoPanelBalFunc();
		VideoGridView.DataSource = ds;
		VideoGridView.DataBind();
	}
	catch(Exception ex)
	{
		throw ex;
	}
	finally
	{
		objBal = null;
	}
}

<columns>
                       <asp:templatefield headertext="ID">
                           <itemtemplate>
                               <asp:label id="lblVideoId" runat="server" text="<%#Eval("Id") %>">
                           
                       

                       <asp:templatefield headertext="Course">
                           <itemtemplate>
                               <asp:label id="lblVideoCourse" runat="server" text="<%#Eval("Course") %>">
                           
                       

                       <asp:templatefield headertext="Description">
                           <itemtemplate>
                               <asp:label id="lblVideoDesc" runat="server" text="<%#Eval("VideoDesc") %>">
                           
                       
                       
                       <asp:templatefield headertext="Video Preview">
                           <itemtemplate>
                              
                                  
                              
                           
                       
                       
                       <asp:templatefield headertext="Actions">
                           <itemtemplate>
                               <asp:linkbutton id="lnkDelete" runat="server" commandname="Delete"><span class="fa fa-trash"></span>