public bool Update(ContactClass c)
{
bool isSuccess = false;
SqlConnection conn = new SqlConnection(myconnstring);
try
{
// sql to Upadte the database
string sql = "UPDATE tbl_Contact SET FirstName=@FirstName, LastName=@LastName, TelNo=@TelNo, MobileNo=@MobileNo, Address=@Address, Gender=@Gender WHERE ContactID=@ContactID";
// creating cmd using sql and conn
SqlCommand cmd = new SqlCommand(sql, conn);
// Create Parameters to add data
cmd.Parameters.AddWithValue("FirstName", c.FirstName);
cmd.Parameters.AddWithValue("LastName", c.LastName);
cmd.Parameters.AddWithValue("TelNo", c.TelNo);
cmd.Parameters.AddWithValue("MobileNo", c.MobileNo);
cmd.Parameters.AddWithValue("Address", c.Address);
cmd.Parameters.AddWithValue("Gender", c.Gender);
cmd.Parameters.AddWithValue("ContactID", c.ContactID);
// Open Database
conn.Open();
int rows = cmd.ExecuteNonQuery();
// If query successfull rows value > 0. Failed rows value = 0
if (rows > 0)
{
isSuccess = true;
}
else
{
isSuccess = false;
}
}
catch (Exception ex)
{
MessageBox.Show("ex " + ex.Message);
}
finally
{
conn.Close();
}
return(isSuccess);
}
public bool DELETE(ContactClass c)
{
bool isSuccess = false;
SqlConnection conn = new SqlConnection(myconnstring);
try
{
// sql to Delete data in the database
string sql = "DELETE FROM tbl_Contact WHERE ContactID=@ContactID";
// creating cmd using sql and conn
SqlCommand cmd = new SqlCommand(sql, conn);
// Create Parameters to DELETE data
cmd.Parameters.AddWithValue("ContactID", c.ContactID);
// Open Database
conn.Open();
int rows = cmd.ExecuteNonQuery();
// If query successfull rows value > 0. Failed rows value = 0
if (rows > 0)
{
isSuccess = true;
}
else
{
isSuccess = false;
}
}
catch (Exception ex)
{
MessageBox.Show("ex " + ex.Message);
}
finally
{
conn.Close();
}
return(isSuccess);
}
