New to OOPs so need help here plzz

Question

Hi,

I am new to OOPS concept. I have created a asp.net page which is a new user registration page. At the button click i want to call a method to handle this.. I have created a class registercls in app_code folder and i want to add some methods. I have these fields like firstname,lastname,city,phone etc.. How to write a method to handle this.. At button click i want to call the method.. plzz help

Nethra R S · Answer

Hi friends , Plzz check this method i have written and let me know if it is correct plzzz: public bool validateuser(string username,string password) { bool returnres = false; try { if (CON.State != ConnectionState.Open) { CON.Open(); CMD = new SqlCommand("select UserName,Password from login_master", CON); DTR = CMD.ExecuteReader(CommandBehavior.CloseConnection); if (DTR.HasRows) { while (DTR.Read()) { if (DTR["UserName"].ToString() == username && DTR["Password"].ToString() == obj.base64Encode(password)) { returnres = true; break; } else { returnres = false; } } } } DTR.Close(); // if (Session["user"] != null) Response.Redirect("~/home.aspx"); CON.Close(); } catch { } finally { CON.Close(); } return returnres; } ==================Here selectrecord is a stored procedure create procedure [dbo].[selectrecord] @UserName varchar(50), @Password varchar(50), @FName varchar(50), @LName varchar(50), @Address varchar(200), @Phone varchar(50), @EmailID varchar(50), @City varchar(50), @Pincode varchar(50) AS SELECT * FROM login_master

Dorababu Meka · Answer

You just passed first name 2 times but it doesn't matter as it will insert that do one thing try inserting the values you given from string values by checking in sql directly using insert command like iInsert in to tbl values (your textbox values or the string values) and let me know

Nethra R S · Answer

Plzz check the way i have passed the values is it correct way?

Dorababu Meka · Answer

If all are correct then it have to insert correctly as per you said that there is no error there should be some thing wrong going

Nethra R S · Answer

Dorebabu, It is not passing the values.. I used the try catch block.. It goes to the catch block immediately.. The stored procedure is: Create procedure [dbo].[insertrecord] @UserName varchar(50), @Password varchar(50), @FName varchar(50), @LName varchar(50), @Address varchar(200), @Phone varchar(50), @EmailID varchar(50), @City varchar(50), @Pincode varchar(50) AS INSERT INTO login_master(UserName,Password,FName,LName,Address,Phone,EmailID,City,Pincode)VALUES(@UserName,@Password,@FName,@LName,@Address,@Phone,@EmailID,@City,@Pincode)

Dorababu Meka · Answer

Post the storeprocedure that you have written

Nethra R S · Answer

Yes it does not give any error... First tell me plzz the way i have passed values is it correct

Dorababu Meka · Answer

Does the Execute Non Query runs with out any error post the store procedure that you have written

Nethra R S · Answer

I checked it,... It does not give error .. But it is not inserting the values in the table.. The way i have passed the values is it correct?

Krishna Garad · Answer

Ya it's ok put the break point and check step by step what is going on.

Dorababu Meka · Answer

Debug and let us know the error other wise we can not help

Nethra R S · Answer

@Krishna Sir, public partial class Default2 : System.Web.UI.Page { registercls obj = new registercls(); protected void Page_Load(object sender, EventArgs e) { } protected void btnregisteruser_Click(object sender, EventArgs e) { if (obj.registeruser(txtfname.Text, txtlname.Text, txtaddress.Text, txtphone.Text, txtemail.Text, txtcity.Text, txtpincode.Text, txtuser.Text, txtpassword.Text)) { lblmsg.Text = "User registered successfully!"; } else { lblmsg.Text = "Registration failed!"; } } } ====================================================== Is this correct? Anyways i am not able to insert the values in the table... Plzz correct me

Nethra R S · Answer

Dorebabu, How to call this registeruser method and how to pass values? PLzz tell me.. At button click how to pass values.. Is it like this? object.registeruser(txtfname.text,txtlname.text................................etc); and method is bool so how to?

Dorababu Meka · Answer

Ya that's the way you have to write if any errors let me know

Nethra R S · Answer

IS THIS CORRECT PLZZ CHECK public bool registeruser(string fname, string lname, string address, string phone, string email, string city, string pincode, string username, string password) { bool returnres=false; try { if (CON.State != ConnectionState.Open) { CON.Open(); CMD = new SqlCommand("insertrecord", CON); CMD.CommandType = CommandType.StoredProcedure; CMD.Parameters.AddWithValue("UserName", fname); CMD.Parameters.AddWithValue("@Password", password); CMD.Parameters.AddWithValue("@FName", fname); CMD.Parameters.AddWithValue("@LName", lname); CMD.Parameters.AddWithValue("@Address", address); CMD.Parameters.AddWithValue("@Phone", phone); CMD.Parameters.AddWithValue("@EmailID", email); CMD.Parameters.AddWithValue("@City", city); CMD.Parameters.AddWithValue("@Pincode", pincode); CMD.ExecuteNonQuery(); returnres = true; } } catch { } finally { CON.Close(); } return returnres; }

Dorababu Meka · Answer

Create the object initially not on button click Modify the below code as per your requirement protected void btnSubmit_Click(object sender, EventArgs e) { // Where oMailing is the object name change as per your required oMailing.FirstName = txtFirstName.Text; oMailing.LastName = txtLastName.Text; oMailing.Email = txtEmail.Text; oMailing.Role = ddlRole.SelectedItem.Text; oMailing.Phone = txtPhone.Text; if (oMailing.Add()) { txtFirstName.Text = string.Empty; txtLastName.Text = string.Empty; txtEmail.Text = string.Empty; ddlRole.SelectedValue = "1"; txtPhone.Text = string.Empty; txtOrgonization.Text = string.Empty; } }

Nethra R S · Answer

Dorababu, U mean i must write that code after public bool registeruser(string fname, string lname, string address, string phone, string email, string city, string pincode, string username, string password) { bool returnres=false; //HERE SHOULD I WRITE THE CODE WHICH U R TELLING? OK then at the resisteration button click Should i create an object of that class and call the method and just pass the values?

Dorababu Meka · Answer

If you are trying to add the database or some sort of thing that you will write there Example: try { if (m_oConn.State != ConnectionState.Open) { m_oConn.Open(); } m_oCmd = new SqlCommand(StoredProcNames.Mailing_uspAddMailingList, m_oConn); m_oCmd.CommandType = CommandType.StoredProcedure; m_oCmd.Parameters.AddWithValue("@CONTACTFirstName", FirstName); m_oCmd.Parameters.AddWithValue("@CONTACTLASTNAME", LastName); m_oCmd.Parameters.AddWithValue("@CONTACTEMAIL", Email); m_oCmd.Parameters.AddWithValue("@CONTACTPHONE", Phone); m_oCmd.Parameters.AddWithValue("@CONTACTROLE", Role); if (m_oConn.State == ConnectionState.Closed) { m_oConn.Open(); } if ((m_oCmd.ExecuteNonQuery()) > 0) { this.m_bFlag = true; } } catch (SqlException oSqlEx) { } catch (Exception oEx) { } finally { m_oConn.Close(); //always close the connection }

Nethra R S · Answer

Hi , I have started like this.. I want an adduser method and i want to call this method at button click and just pass the values... public bool registeruser(string fname, string lname, string address, string phone, string email, string city, string pincode, string username, string password) { bool returnres=false; return returnres; } In this method i am not understanding what to write. Plzz help Also if someone can tell me the advantage of using methods and properties i will be grateful to u`ll..Thanks

Nethra R S · Answer

Ok i will try out and will let you`ll know if i get stuck somewhere..Plz can you`ll provide a sample code

Dorababu Meka · Answer

Declaration Private string strFirstName; Private string strLastName; Private string strCity; and so on as per your requirement Initializing public string FirstName { get { return strFirstName ; } set { strFirstName = value; } } Like this you have to declare your public methods to use in the code Methods public bool Add() { // your code here } Call this method using name of your code file by creating an object Sample sam=new Sample(); and call your function as sam.Add()

Krishna Garad · Answer

Using Properties:- string _fname,_lname; puplic string Fname{get;set;} public string Lname{get;set;} void Method() { //code } Using method parameter void Method(string _fname,string _lname) { //code } in your button click event registercls obj=new registercls(); // if using properties way obj.Fname="Value"; obj.Lname="Value"; obj.Method(); //if using Method Parameter Way obj.Method("Value","Value");

New to OOPs so need help here plzz

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Answers (22)