Simple Application Form in ASP.NET

This article will explain you, how to create simple online application form in ASP.Net.


Introduction

We always face online registration form, application form, feedback form, query form and even if we want to create new email id we must face form to feed our information or else. But for the beginners of ASP.Net, it is very complex task to accomplish. Because when I was beginner in the same, I faced lots of problem like database configuration settings on local host and even on shared host. But in this article I will explain the simplest way to get connected with MS SQL Server Database, and also to fetch all information on web form. In different books, web articles there are couples of way discussed to accomplish but here is the simplest one.

Perquisites

There is something listed which I expect from you

  1. You should know, how to open and create simple web pages and tables
  2. You should know, how to create MS SQL Server Databases
  3. You should have Visual Studio 2005/2008 or Visual Web Developer 2005/2008 installed and running ok.
Steps to Create Form

Step 1:

Create a web page and place the controls as listed below:

Control Name Property 1 Property 2 Property 3
TextBox1 Id =fname    
TextBox2 Id =lname    
TextBox3 Id =dob    
TextBox4 Id =gender    
TextBox5 Id =fathername    
TextBox6 Id =contact    
TextBox7 Id =address    
Button1 Id =submit Text=Submit  
Label1 Id =conform Text= Submitted, thank you ! Visible=False

form1.gif

Step 2:

In this step we will create the database in MS SQL Server as per the information given below:

Database Name = onlineapplicationform.mdf

Table Nem = onlineapplication

Columns Name Data Types Allow Nulls Property 3
id int Not Checked  
fname varchar(50) Checked  
lname varchar(50) Checked  
dob varchar(50) Checked  
gender char(10) Checked  
fathername varchar(50) Checked  
contact int Checked only 6 digits
address varchar(100) Checked  

form2.gif

Step 3:

In this step we will discuss, how to show that data available in database on web form. For this, we simply drag the table named 'onlineapplication' from Database Explorer and drop it on the web form. Now it will automatically establish the connect strings in web.config file. But we don't have any data in database to show it on form so simply it will show you 'There are no data records to display' message on the form. Now take a step to code behind to connect it to database and then after we can insert our data in table and view it on form that what we have given. Here is the screenshots of working process.

form3.gif

form4.gif

Step 4:

In this step we will discuss about the coding.

In Default.aspx Page

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="Default2" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Simple Application Form in ASP.Net</title>
</head>
<
body>
    <form id="form1" runat="server">
    <div>
        <div>
            <strong><span style="font-size: 14pt; color: #0000ff">Simple Application Form In ASP.Net</span></strong><br />
            <br />
            <br />
            <br />
            <table>
                <tr>
                    <td style="width: 123px">
                        First Name</td>
                    <td style="width: 63px">
                        :</td>
                    <td style="width: 193px">
                        <asp:TextBox ID="fname" runat="server"></asp:TextBox></td>
                </tr>
                <tr>
                    <td style="width: 123px">
                        Last Name</td>
                    <td style="width: 63px">
                        :</td>
                    <td style="width: 193px">
                        <asp:TextBox ID="lname" runat="server"></asp:TextBox></td>
                </tr>
                <tr>
                    <td style="width: 123px">
                        Date of Birth</td>
                    <td style="width: 63px">
                        :</td>
                    <td style="width: 193px">
                        <asp:TextBox ID="dob" runat="server"></asp:TextBox></td>
                </tr>
                <tr>
                    <td style="width: 123px">
                        Gender</td>
                    <td style="width: 63px">
                        :</td>
                    <td style="width: 193px">
                        <asp:TextBox ID="gender" runat="server"></asp:TextBox></td>
                </tr>
                <tr>
                    <td style="width: 123px">
                        Father's Name</td>
                    <td style="width: 63px">
                        :</td>
                    <td style="width: 193px">
                        <asp:TextBox ID="fathername" runat="server"></asp:TextBox></td>
                </tr>
                <tr>
                    <td style="width: 123px">
                        Contact Number</td>
                    <td style="width: 63px">
                        :</td>
                    <td style="width: 193px">
                        <asp:TextBox ID="contact" runat="server"></asp:TextBox></td>
                </tr>
                <tr>
                    <td style="width: 123px">
                        Address</td>
                    <td style="width: 63px">
                        :</td>
                    <td style="width: 193px">
                        <asp:TextBox ID="address" runat="server"></asp:TextBox></td>
                </tr>
                <tr>
                    <td style="width: 123px; height: 21px">
                    </td>
                    <td style="width: 63px; height: 21px">
                    </td>
                    <td style="width: 193px; height: 21px">
                        <asp:Label ID="conform" runat="server" Text="Submitted, thank you !" Visible="False"
                            Width="152px"></asp:Label></td>
                </tr>
                <tr>
                    <td style="width: 123px">
                    </td>
                    <td style="width: 63px; text-align: center">
                    </td>
                    <td style="width: 193px">
                        <asp:Button ID="submit" runat="server" Text="Submit" OnClick="submit_Click" /></td>
                </tr>
            </table>
        </div>
        <br />
        <br />
        <strong><span style="text-decoration: underline">Database Details</span></strong><br />
        <br />
        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1"
            EmptyDataText="There are no data records to display.">
            <Columns>
                <asp:BoundField DataField="id" HeaderText="id" SortExpression="id" />
                <asp:BoundField DataField="fname" HeaderText="fname" SortExpression="fname" />
                <asp:BoundField DataField="lname" HeaderText="lname" SortExpression="lname" />
                <asp:BoundField DataField="dob" HeaderText="dob" SortExpression="dob" />
                <asp:BoundField DataField="gender" HeaderText="gender" SortExpression="gender" />
                <asp:BoundField DataField="fathername" HeaderText="fathername" SortExpression="fathername" />
                <asp:BoundField DataField="contact" HeaderText="contact" SortExpression="contact" />
                <asp:BoundField DataField="address" HeaderText="address" SortExpression="address" />
            </Columns>
        </asp:GridView>
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:onlineapplicationformConnectionString1 %>"
            ProviderName="<%$ ConnectionStrings:onlineapplicationformConnectionString1.ProviderName %>"
            SelectCommand="SELECT [id], [fname], [lname], [dob], [gender], [fathername], [contact], [address] FROM [onlineapplication]">  
     </asp:SqlDataSource>

       </div>
    </form>
</body>
</
html>

In Default.aspx.cs Page

using System;
using System.Data;
using System.Configuration;
using System.Data.SqlClient;
using System.ComponentModel;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class Default2 : System.Web.UI.Page
{
    public string GetConnectionString()
    {
        //we will set up the configuration which will call our
        //web.config file to provide the database details because
        //in configuration file we have created the <connectionStrings>
        //in the process we draged and droped. It creates automatically.
        //We normally put the database details in web.config file or
        //machine.config file because it is very sensitive information
        //usually there IP address of remote database, passwords and
        //user names are stored.

        return System.Configuration.ConfigurationManager.ConnectionStrings
            ["onlineapplicationformConnectionString1"].ConnectionString;
        //in above line "onlineapplicationformConnectionString1" is
        //our configuration name which is inside the web.config file.
    }

    private void execution(string fname, string lname, string dob, string gender, string fathername, string contact, string address)
    {       
        //In above line we declaring different variables same as backend
        SqlConnection conn = new SqlConnection(GetConnectionString());
        //In above line we are calling connection
        //string function which is defined already on top
        string sql = "INSERT INTO onlineapplication (fname, lname, dob, gender, fathername, contact, address) VALUES "
        + " (@fname, @lname, @dob, @gender, @fathername, @contact, @address)";
        //In above lines we are just storing the sql commands which
        //will insert value in onlineapplication named table,
        //using variable named sql.
        try
        {
            conn.Open();
            SqlCommand cmd = new SqlCommand(sql, conn);
            //In above lines we are opening the connection to work and
            //also storing connection name and sql command in cmd variable
            //which has 'SqlCommand' type.
            SqlParameter[] pram = new SqlParameter[7];
            //In above lines we are defining 7 sql parameters will be use
            //In below lines we will not disscuss about id column
            pram[0] = new SqlParameter("@fname", SqlDbType.VarChar, 50);
            pram[1] = new SqlParameter("@lname", SqlDbType.VarChar, 50);
            pram[2] = new SqlParameter("@dob", SqlDbType.VarChar, 50);
            pram[3] = new SqlParameter("@gender", SqlDbType.Char, 10);
            pram[4] = new SqlParameter("@fathername", SqlDbType.VarChar, 50);
            pram[5] = new SqlParameter("@contact", SqlDbType.Int, 20);
            pram[6] = new SqlParameter("@address", SqlDbType.VarChar, 100);
            //Now we set-uped all fiels in database in above lines
            //Now we will set-up form fields
            pram[0].Value = fname;
            pram[1].Value = lname;
            pram[2].Value = dob;
            pram[3].Value = gender;
            pram[4].Value = fathername;
            pram[5].Value = contact;
            pram[6].Value = address;
            //Now create loop to insert
            for (int i = 0; i < pram.Length; i++)
            {
                cmd.Parameters.Add(pram[i]);
            }
            cmd.CommandType = CommandType.Text;
            cmd.ExecuteNonQuery();
        }
        catch(System.Data.SqlClient.SqlException ex_msg)
        {
            //Here will be catch elements
            string msg = "Error occured while inserting";
            msg += ex_msg.Message;
            throw new Exception(msg);
        }
        finally
        {
            //Here will be fially elements
            conn.Close();
        }
    }

    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void submit_Click(object sender, EventArgs e)
    {
        //Here is the command inside the click event of button
        if(fname.Text=="")
        {
            Response.Write("Please complete the form.");
        }
        else
        {
            execution(fname.Text,lname.Text,dob.Text,gender.Text,fathername.Text,contact.Text,address.Text);
            conform.Visible = true;
            fname.Text="";
            lname.Text="";
            dob.Text="";
            gender.Text="";
            gender.Text="";
            fathername.Text="";
            contact.Text="";
            address.Text="";
        }
    }
}


After all coding run the web application and sees the following results. You have to enter some data using text box and click on submit button. After submit button clicks you can see the enabled label with the message "Submitted, thank you !" behind the button. Here is screenshots.

HAVE A HAPPY CODING!