public bool Delete(contactClass c) { bool isSuccess = false; SqlConnection conn = new SqlConnection(myconnstring); try { string sql = "DELETE FROM tbl_contact WHERE ContactID=@ContactID"; SqlCommand cmd = new SqlCommand(sql, conn); cmd.Parameters.AddWithValue("@ContactId", c.ContactId); conn.Open(); int rows = cmd.ExecuteNonQuery(); if (rows > 0) { isSuccess = true; } else { isSuccess = false; } } catch (Exception ex) { } finally { conn.Close(); } return(isSuccess); }
public bool Insert(contactClass c) { bool isSuccess = false; //Step 1: Connect Database SqlConnection conn = new SqlConnection(myconnstring); try { //Step 2: Create a SQL Query to insert Data string sql = "INSERT INTO tbl_contact (FirstName, LastName, ContactNo, Address, Gender) VALUES (@FirstName, @LastName, @ContactNo, @Address, @Gender)"; //Creating SQL Command 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("@ContactNo", c.ContactNo); cmd.Parameters.AddWithValue("@Address", c.Address); cmd.Parameters.AddWithValue("@Gender", c.Gender); //Connection Open Here conn.Open(); int rows = cmd.ExecuteNonQuery(); //if the query runs successfull then the value of rows will be greater than zero, else its value will be 0 if (rows > 0) { isSuccess = true; } else { isSuccess = false; } } catch (Exception ex) { } finally { conn.Close(); } return(isSuccess); }
public bool Insert(contactClass c) { bool isSuccess = false; SqlConnection conn = new SqlConnection(myconnstring); try { //sql insert query string sql = "INSERT INTO tbl_contact(FirstName,LastName,ContactNumber,Address,Gender) VALUES (@FirstName,@LastName,@ContactNumber,@Address,@Gender)"; //sql command using sql comm SqlCommand cmd = new SqlCommand(sql, conn); //parameters to add data cmd.Parameters.AddWithValue("@FirstName", c.FirstName); cmd.Parameters.AddWithValue("@LastName", c.LastName); cmd.Parameters.AddWithValue("@ContactNumber", c.ContactNumber); cmd.Parameters.AddWithValue("@Address", c.Address); cmd.Parameters.AddWithValue("@Gender", c.Gender); conn.Open(); int rows = cmd.ExecuteNonQuery(); if (rows > 0) { isSuccess = true; } else { isSuccess = false; } } catch (Exception ex) { } finally { conn.Close(); } return(isSuccess); }
//Method to update data in database from our application public bool Update(contactClass c) { bool isSuccess = false; SqlConnection conn = new SqlConnection(myconnstring); try { string sql = "UPDATE tbl_contact SET FirstName=@FirstName, LastName=@LastName, ContactNo=@ContactNo, Address=@Address, Gender=@Gender WHERE ContactID=@ContactID"; SqlCommand cmd = new SqlCommand(sql, conn); cmd.Parameters.AddWithValue("@FirstName", c.FirstName); cmd.Parameters.AddWithValue("@LastName", c.LastName); cmd.Parameters.AddWithValue("@ContactNo", c.ContactNo); cmd.Parameters.AddWithValue("@Address", c.Address); cmd.Parameters.AddWithValue("@Gender", c.Gender); cmd.Parameters.AddWithValue("@ContactID", c.ContactId); conn.Open(); int rows = cmd.ExecuteNonQuery(); if (rows > 0) { isSuccess = true; } else { isSuccess = false; } } catch (Exception ex) { } finally { conn.Close(); } return(isSuccess); }