Question

Below is my code(C#), however nothing is displayed.

The problem seems to be with the @lastlogged parameter as if I hardcode its value are returned, the value lastlogged has already been converted using Convert.ToDateTime(“2012-07-17 15:18:14.993”).

Update Error: Must declare the scalar variable “@lastlogged”.

string sqlStr = "SELECT * FROM View_AllJobDetails WHERE UpdatedDateStaff >= @lastlogged";
        SqlCommand cmd = new SqlCommand(sqlStr, cnn);
        cmd.Parameters.Add("@lastlogged", SqlDbType.DateTime);
        cmd.Parameters["@lastlogged"].Value = lastlogged;

Answer 1

Why don’t you embed the lastlogged value itself into sqlStr –

string sqlStr = "SELECT * FROM View_AllJobDetails WHERE UpdatedDateStaff >= " + string.Format("{0:dd-MMM-yyyy}",lastlogged); 

Another approach could be creating a stored procedure in database and add this parameter.