How to Write &read and show textfile in asp.net?

 ///For Write the text file


public void makebannerForUI()

{

//for UI

string fileLoc = ConfigurationManager.AppSettings["BrandScrollFile"] + "BrandScroller.txt";

BenrosslinqDataContext bndb = new BenrosslinqDataContext();

var brand = from brands in bndb.tblBrandsLogos where brands.IsActive == true orderby brands.BrandName ascending select brands;

StringBuilder sb = new StringBuilder();

int i = 0;

foreach (var brn in brand)

{

i = i + 1;

sb.AppendLine("<li class='scrolimg' style='valign:veritcal-align:middle; text-align:center;vertical-align:middle' >" + "<a href=" + ImagePath + "Brands/" + brn.LogoId + "/" + clsComman.StringReplace(Convert.ToString(brn.BrandName)) + "> <img align=absmiddle src=" + ImagePath + "admin/BrandImages/" + brn.LogoImage + " alt=item " + i.ToString() + "/></a></li><li style='width:10px;text-align:center;'></li>");

}

FileStream fs = new FileStream(fileLoc, FileMode.OpenOrCreate);

StreamWriter sw = new StreamWriter(fs);

sw.Write(sb.ToString());

sw.Close();

}  ///For Read and display the text file


public void getbrand()

{

if (Cache["brand"] == null && Convert.ToString(Cache["brand"]) == "")

{

using (StreamReader sr = new StreamReader(ConfigurationManager.AppSettings["BrandScrollFile"] + "BrandScroller.txt"))

{

ltbrand.Text = sr.ReadToEnd();

Cache.Insert("brand", ltbrand.Text, new System.Web.Caching.CacheDependency(ConfigurationManager.AppSettings["BrandScrollFile"] + "BrandScroller.txt"));

}

}

else

{

ltbrand.Text = Convert.ToString(Cache["brand"]);

}

}