public bool InsertCategory(CategoriesAndResultsBLL cat)
{
bool isSuccess = false;
SqlConnection conn = new SqlConnection(UserDAL.myconnstrng);
try
{
string sql = "INSERT INTO tbl_Categories (CategoryNo, CategoryName) VALUES (@CategoryNo, @CategoryName)";
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.AddWithValue("@CategoryNo", cat.CategoryNo);
cmd.Parameters.AddWithValue("@CategoryName", cat.CategoryName);
conn.Open();
int rows = cmd.ExecuteNonQuery();
// If the query is executed successfully then the value to rows will be greaten than 0 else it will be less than 0
if (rows > 0)
{
// Query successful
isSuccess = true;
}
else
{
// Query failed
isSuccess = false;
}
}
catch (Exception ex)
{
// Throw message if any error occurs
MessageBox.Show(ex.Message, "Insert data in Database Information!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
finally
{
conn.Close();
}
return(isSuccess);
}
public bool UpdateCategory(CategoriesAndResultsBLL cat)
{
bool isSuccess = false;
SqlConnection conn = new SqlConnection(UserDAL.myconnstrng);
try
{
string sql = "UPDATE tbl_Categories SET CategoryNo=@CategoryNo, CategoryName=@CategoryName WHERE CategoryNo=@CategoryNo";
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.AddWithValue("@CategoryNo", cat.CategoryNo);
cmd.Parameters.AddWithValue("@CategoryName", cat.CategoryName);
conn.Open();
int rows = cmd.ExecuteNonQuery();
if (rows > 0)
{
// Query successful
isSuccess = true;
}
else
{
// Query failed
isSuccess = false;
}
}
catch (Exception ex)
{
// Throw message if any error occurs
MessageBox.Show(ex.Message, "Update data in Database Information!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
finally
{
conn.Close();
}
return(isSuccess);
}
public bool DeleteResult(CategoriesAndResultsBLL res)
{
bool isSuccess = false;
SqlConnection conn = new SqlConnection(UserDAL.myconnstrng);
try
{
string sql = "DELETE FROM tbl_Results WHERE ResultNo=@ResultNo";
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.AddWithValue("@ResultNo", res.ResultNo);
conn.Open();
int rows = cmd.ExecuteNonQuery();
if (rows > 0)
{
// Query successful
isSuccess = true;
}
else
{
// Query failed
isSuccess = false;
}
}
catch (Exception ex)
{
// Throw message if any error occurs
MessageBox.Show(ex.Message, "Delete data from Database Information!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
finally
{
conn.Close();
}
return(isSuccess);
}
