//Insert data
public bool Insert(ClassLocation c)
{
// create return type value to false
bool isSuccess = false;
//1.connect database
SqlConnection conn = new SqlConnection(myconnstrng);
// return isSuccess;
try
{
//2.sql query to insert
string sql = "INSERT INTO Location (BuildingName, RoomName, Capacity, RoomType ) VALUES(@buildingName, @roomName, @capacity, @roomType)";
//create SQL command using sql and conn
SqlCommand cmd = new SqlCommand(sql, conn);
//Parameters to add data
cmd.Parameters.AddWithValue("@buildingName", c.Bname);
cmd.Parameters.AddWithValue("@roomName", c.Rname);
cmd.Parameters.AddWithValue("@capacity", c.Capacity);
cmd.Parameters.AddWithValue("@roomType", c.Rtype);
//MessageBox.Show("Exception Called : " + c.Bname + c.Rname+ c.Capacity+c.Rtype+ "", "Exception", MessageBoxButtons.OK, MessageBoxIcon.Error);
//open connection
conn.Open();
int rows = cmd.ExecuteNonQuery();
//if sucessful ..method
if (rows > 0)
{
isSuccess = true;
}
else
{
isSuccess = false;
}
}
catch (Exception)
{
}
finally
{
conn.Close();
}
return(isSuccess);
}
//UPDATE values
public bool Update(ClassLocation c)
{
//default type to false
bool isSuccess = false;
SqlConnection conn = new SqlConnection(myconnstrng);
try
{
//update data in database
string sql = "UPDATE Location SET buildingName=@buildingName, roomName=@roomName, capacity=@capacity, RoomType=@roomType WHERE id=@id";
//SQL command
SqlCommand cmd = new SqlCommand(sql, conn);
//parameters to value
cmd.Parameters.AddWithValue("@id", c.ID);
cmd.Parameters.AddWithValue("@buildingName", c.Bname);
cmd.Parameters.AddWithValue("@roomName", c.Rname);
cmd.Parameters.AddWithValue("@capacity", c.Capacity);
cmd.Parameters.AddWithValue("@roomType", c.Rtype);
// MessageBox.Show("Exception Called : " + c.Bname + c.Rname+ c.Capacity+c.Rtype+ "", "Exception", MessageBoxButtons.OK, MessageBoxIcon.Error);
// database conection
conn.Open();
int rows = cmd.ExecuteNonQuery();
//if sucecc method
if (rows > 0)
{
isSuccess = true;
}
else
{
isSuccess = false;
}
}
catch (Exception)
{
}
finally
{
conn.Close();
}
return(isSuccess);
}
//DELETE
public bool Delete(ClassLocation c)
{
//default return
bool isSuccess = false;
//Sql connection
SqlConnection conn = new SqlConnection(myconnstrng);
try
{
//sql to delte data
string sql = "DELETE FROM Location WHERE id=@id";
//sql command
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.AddWithValue("id", c.ID);
//open connection
conn.Open();
int rows = cmd.ExecuteNonQuery();
//method
if (rows > 0)
{
isSuccess = true;
}
else
{
isSuccess = false;
}
}
catch (Exception)
{
}
finally
{
//close connection
conn.Close();
}
return(isSuccess);
}