string filename=UploadFile.PostedFile.FileName; int a =filename.LastIndexOf(@"\"); filename = filename.Substring(a+1,filename.Length-a-1); string newext =filename.Substring(filename.Length -4,4).ToLower(); if(newext!=".txt") { Response.Write("<script>alert('You should select a text file.');</script>"); return; }
int a =filename.LastIndexOf(@"\");
filename = filename.Substring(a+1,filename.Length-a-1);
string newext =filename.Substring(filename.Length -4,4).ToLower();
if(newext!=".txt")
{
Response.Write("<script>alert('You should select a text file.');</script>");
return;
}
UploadFile.PostedFile.SaveAs(Server.MapPath("UploadFile")+"/"+filename);
//Response.Write(Server.MapPath("UploadFile")+filename);
this.FileName = Server.MapPath("UploadFile")+"/"+filename;
}