数据库的空格怎么解决呢?还是我的代码有错误呢？？

@a7747369
string idstring = helper.fid; using (SqlConnection conn = new SqlConnection(Properties.Settings.Default.Database1ConnectionString)) { string mystring = Properties.Settings.Default.Database1ConnectionString; string sqlstring="update [MyTable] set fName=@name,fRemark=@remark where [MyTable].fid=@idstring"; SqlCommand cmd = new SqlCommand(sqlstring, conn); try { conn.Open(); string name = textBox1.Text; string remark = textBox2.Text; cmd.Parameters.Add("@name", SqlDbType.NChar).Value = name; cmd.Parameters.Add("@remark", SqlDbType.NChar).Value = remark; cmd.Parameters.Add("@idstring", SqlDbType.NChar).Value = idstring; int n=cmd.ExecuteNonQuery(); conn.Close(); Form1.F5(); this.Dispose();
就是这段，我明明没有写错，而且n的值最后也是1，可是数据库里死活都不更新