cant get record in gridview !!

Question

i wrote a code where the number is in the db then show the info in gridview when i give valid number it is showing only fields when i give invalid it says no record found in gridview i have used EmptyDataText tag 

 

why is the record not showing 

SqlConnection con = new SqlConnection(pps);
con.Open();
SqlCommand cmd = new SqlCommand();
String sqlquery = "SELECT [ProjectID], [ProjectTitle] FROM [ProjectDetails] where [UserID] like '%'+@userid+'%'";
cmd.CommandText = sqlquery;
cmd.Connection = con;
cmd.Parameters.AddWithValue("userid", txtempsearch.Text);
DataTable dt = new DataTable();
SqlDataAdapter sda = new SqlDataAdapter(cmd);
sda.Fill(dt);
GridVSearch.DataSource = dt;
GridVSearch.DataBind();