Comments by Member 16136226 (Top 1 by date)

you dont need to add datasource codebehind, you do it on html properties and if its working you can retrieve the table data, dont double the parameter, and you might have problem to find any rows if you dont have defined the datatable information and stored/ filled into gridview before executing the query. (eg. use session to define table datas into them on page load. also add a
command.Parameter.Add("@UserID", Session["UserID"] ?? "asd") /* or optionally DBNull.Value*/)
/*this will use 1 as field information if your query table requires a input on column, and you dont have it already, it tries now first use the stores information then if not found, it adds value you want to "asd" change it to what u want so it lets you use when you use @UserID in query, or final option if your code dont have the data, you can use this to use NULL -> /* or optionally DBNull.Value*/)
Dataset ds = new Dataset();
d.fill(ds, "table");
int affectrows = command.executenonquery();

command.executenonquery();

if (affectrows.executenonqueryU()>0) // or if(ds.tables["table"].rows[0].ToString == "something")
{
}
else
{
}
}
}

*** also consider of using datareader, to more safe.
using (sqlcommand command("UPDATE TOP(1) Table Set UserID = @UserID Where UserID = @UserID"), con))
{
Command.Parameter.ADD("", blaa);
using (DataAdapter command = new DataAdapter))
{
Dataset ds = new Dataset
command.Fill(ds, "table");
if (..)
{
//do this and do that if all ok.

}
else
{if u do not meet conditions, you do this.
}