Please good people, i need your help. I having been trying to solve this problem, but no way. what is the best method to insert data so that this error of data truncation will be avoided in C#/asp.net. Here is what i have been trying to do:
public class BuildTable
{
public static string BuildmyTable(string Regno)
{
int counter = 1;
using (DataTable dtReciept = fetchtopicData(counter))
{
DataTable dtReciept2 = fetchRecieptData(Regno);
string connStr = ConfigurationManager.ConnectionStrings["ProBookDatabase.mdf"].ConnectionString;
SqlConnection conn = new SqlConnection(connStr);
conn.Open();
string query = "INSERT INTO SwitchData(FullName,RegNumber,Department,TopicID,Session,LecturerName,StaffID,Topic,ProblemDefinition,SkillsRequired,MaxNOfPerson) VALUES(@TopicID,@Session,@LecturerName,@StaffID,@Topic,@ProblemDefinition,@SkillsRequired,@MaxNOfPerson,@FullName,@RegNumber,@Department)";
SqlCommand cmd = new SqlCommand(query, conn);
cmd.Parameters.AddWithValue("@FullName", dtReciept2.Rows[0]["FullName"]);
cmd.Parameters.AddWithValue("@RegNumber", Regno.Trim());
cmd.Parameters.AddWithValue("@Department", dtReciept2.Rows[0]["Department"]);
cmd.Parameters.AddWithValue("@Session", dtReciept.Rows[0]["Session"]);
cmd.Parameters.AddWithValue("@TopicID", dtReciept.Rows[0]["TopicID"]);
cmd.Parameters.AddWithValue("@LecturerName", dtReciept.Rows[0]["LecturerName"]);
cmd.Parameters.AddWithValue("@StaffID", dtReciept.Rows[0]["StaffID"]);
cmd.Parameters.AddWithValue("@Topic", dtReciept.Rows[0]["Topic"]);
cmd.Parameters.AddWithValue("@ProblemDefinition", dtReciept.Rows[0]["ProblemDefinition"]);
cmd.Parameters.AddWithValue("@SkillsRequired", dtReciept.Rows[0]["SkillsRequired"]);
cmd.Parameters.AddWithValue("@MaxNOfPerson", dtReciept.Rows[0]["MaxNOfPerson"]);
int id = Convert.ToInt32(cmd.ExecuteScalar());
return Regno;
}
}
private static DataTable fetchtopicData(int counter)
{
string connStr = ConfigurationManager.ConnectionStrings["ProBookDatabase.mdf"].ConnectionString;
const string query = "Select * from Project_File Where Id = @Id";
DataTable Recieptresult = new DataTable();
using (SqlConnection conn = new SqlConnection(connStr))
{
conn.Open();
using (SqlCommand cmd = new SqlCommand(query, conn))
{
cmd.Parameters.Add("@Id", SqlDbType.NVarChar).Value = counter;
using (SqlDataReader dr = cmd.ExecuteReader())
{
Recieptresult.Load(dr);
}
}
}
return Recieptresult;
}
private static DataTable fetchRecieptData(string Regno)
{
string connStr = ConfigurationManager.ConnectionStrings["ProBookDatabase.mdf"].ConnectionString;
const string query = "Select FullName,RegNumber,Department from StudentRegister Where RegNumber = @RegNumber";
DataTable Recieptresult = new DataTable();
using (SqlConnection conn = new SqlConnection(connStr))
{
conn.Open();
using (SqlCommand cmd = new SqlCommand(query, conn))
{
cmd.Parameters.Add("@RegNumber", SqlDbType.NVarChar).Value = Regno;
using (SqlDataReader dr = cmd.ExecuteReader())
{
Recieptresult.Load(dr);
}
}
}
return Recieptresult;
}
}But it will be giving me error
