MCA Lab Manual ASP.NET · LABORATORY MANUAL CONTENTS This manual is intended for the students S.Y (M.C.A) engineering for the subject of MTL-II (Microsoft Technology Lab). Subject

Jawaharlal Nehru Engineering College

Laboratory Manual

MTL-II (ASP.NET)

For

S.Y (M.C.A) Students

20, May 2010 – Rev 00 – MCA – ISO 9000 Tech Document

Author JNEC, Aurangabad

FORWARD

It is my great pleasure to present this laboratory manual for S.Y (M.C.A)engineering students for the subject of MTL-II(Microsoft Technology lab tools).Subject name itself is expecting what are the advance controls and services that might be used to develop web applications using Microsoft technology i.e. ASP.NET with code behind language VB.NET . As a student, many of you may be wondering with some of the questions in your mind regarding the subject and exactly what has been tried is to answer through this manual. As you may be aware that MGM has already been awarded with ISO 9000 certification and it is our endure to technically equip our students taking the advantage of the procedural aspects of ISO 9000 Certification. Faculty members are also advised that covering these aspects in initial stage itself, will greatly relived them in future as much of the load will be taken care by the enthusiasm energies of the students once they are conceptually clear.

Prof. S.D.DESHMUKH Principal

LABORATORY MANUAL CONTENTS

This manual is intended for the students S.Y (M.C.A) engineering for the subject of MTL-II (Microsoft Technology Lab). Subject name itself is expecting what are the advance controls and services that might be used to develop web applications using Microsoft technology i.e. ASP.NET with code behind language VB.NET. In the subject of this manual typically contains practical/Lab Sessions we have dealt with ASP.NET.

ASP.NET is the next generation ASP, but it's not an upgraded version of ASP. ASP.NET is an entirely new technology for server-side scripting. It was written from the ground up and is not backward compatible with classic ASP.

Students are advised to thoroughly go through this manual rather than only topics mentioned are the key to understanding and conceptual visualization of theoretical aspects covered in the books. Good Luck for your Enjoyable Laboratory Sessions Lect. J. D. Harne

SUBJECT INDEX:

1. Introduction to Client side scripting. 2. ASP.NET page life cycle. 3. State management technique. 4. Use of advance web controls like File upload, Hyperlink, Linkbutton etc. 5. Ad-rotator control. 6. Validation controls. 7. Grid view control (showing records from Database). 8. ADO.NET application to insert, delete, update records in database. 9. Data List and Repeater control. 10. Introduction to Web services.

DOs and DON’T DOs in Laborary: 1. Do not handle any equipment before reading the instructions/Instruction manuals

2. Read carefully the power ratings of the equipment before it is switched on whether ratings 230

V/50

Hz or 115V/60 Hz. For Indian equipments, the power ratings are normally 230V/50Hz. If you

have equipment with 115/60 Hz ratings, do not insert power plug, as our normal supply is

230V/50 Hz, which will damage the equipment.

3. Observe type of sockets of equipment power to avoid mechanical damage

4. Do not forcefully place connectors to avoid the damage

5. Strictly observe the instructions given by the teacher/Lab Instructor

Instruction for Laboratory Teachers::

1. Submission related to whatever lab work has been completed should be done during the next lab

session. The immediate arrangements for printouts related to submission on the day of practical

assignments.

2. Students should be taught for taking the printouts under the observation of lab teacher.

3. The promptness of submission should be encouraged by way of marking and evaluation patterns

that will benefit the sincere students.

WARMUP EXCERCISES:

What is Internet,web server,browser? What is client side scripting and serverside scripting?

What is DOM(Document Object Modelling). .NET Framework,namespaces,page life cycle, HTML and web controls. State management techniques. What are View state,Cookies,Hidden,Querystring? Request and Response objects. Difference Session and Application state management technique.

Validation controls. Rich controls.

What is ADO.NET. Different types of ADO.NET Objects? Difference dataset and data reader. Connected and Disconnected architecture. What are Web services? What is SOAP,WSDL,UDDI,DISCO.

Difference Server.Transer() and Response.Redirect().

1. Lab Exercises:

[Purpose this exercise is to introduce Client side scripting. Differentiate between client side

scripting and server side scripting. Steps:

1. Write a program in either NOTEPAD or VISUAL STUDIO.NET environment.

2. If VISUAL STUDIO .NET environment then

(i) Right click on Solution Explorer and Select Add New Item.

(ii) Select HTMLPage.htm.

(iii) Write the code (only use HTML Controls from Toolbox).

(iv) Select HTML page in Solution Explorer =>Right click=>Select View in Browser

to execute.

OR

Press F5 button for execution.

3. If NOTEPAD then

(i) Save the file with extension .HTML.

(ii) Click the HTML file for execution.

Exercise No1: ( 2 Hours) – 1 Practical

<HTML>

<HEAD>

<TITLE> Greetings from the web</TITLE>

<script language="javascript" type="text/javascript">

function CheckLogin() {

if ( form1.txtUname .value =="" && form1 .txtPwd.value =="")

{

alert ("Please Enter username and password")

form1.txtUname .focus ();

}else if ( form1.txtUname .value =="JNEC" && form1.txtPwd.value =="MCA")

{

alert ("Login Success")

}

else

{

alert ("Login failed please try again..")

form1 .txtUname .value="";

form1.txtPwd .value ="";

form1 .txtUname .focus ();

}

}

</script>

</Head>

<body>

<form id="form1" name="f1" action ="">

<table style="width: 34%; height: 220px;">

<tr>

<td class="style2">

Username :

</td>

<td>

<input id="txtUname" type="text" />

</td>

</tr>

<tr>

<td class="style2">

Password :

</td>

<td>

<input id="txtPwd" type="password" />

</td>

</tr>

<tr>

<td class="style1" colspan="2">

<input id="Button1" type="Button" value="Login" onclick="CheckLogin()" />

</td>

</tr>

</table>

</form>

</body>

<HTML>

2. Lab Exercises: [Purpose of this exercise is to introduce ASP.NET page life cycle. You can use Visual Studio .NET

environment to type the program. Execution of program in two ways.

1. Press F5 button OR

2. Right click on ASP.NET page (for e.g.: Default.aspx) and Select “View Browser” option and

select any browser for execution.

Exercise No2: ( 2 Hours) – 1 Practical Lab Assignment 2: Page Life cycle( different page events)

Program:

'Inline Code ( Default.aspx.vb)

Partial Class _Default

Inherits System.Web.UI.Page

Protected Sub Page_Init(ByVal sender As Object, ByVal e As System.EventArgs) Handles

Me.Init

lblInfo.Text += "Page.Init event handled.<br />"

End Sub

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles

Me.Load

lblInfo.Text += "Page.Load event handled.<br />"

If (Page.IsPostBack) Then

lblinfo.Text += "<b>This is the second time you've seen this page.</b><br />"

End If

End Sub

Protected Sub Page_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles

Me.PreRender

lblinfo.Text += "Page.PreRender event handled.<br />"

End Sub

Protected Sub Page_Unload(ByVal sender As Object, ByVal e As System.EventArgs) Handles

Me.Unload

' This text never appears because the HTML is already

' rendered for the page at this point.

lblinfo.Text += "Page.Unload event handled.<br />"

End Sub

End Class

3. Lab Exercises: [Purpose of this exercise is to introduce ASP.NET State management techniques. You can use

Visual Studio .NET environment to type the program. Execution of program in two ways.


2. Right click on ASP.NET page (for eg: Default.aspx) and Select “View Browser” option and


Exercise No3: ( 2 Hours) – 1 Practical Lab Assignment 3: State management techniques

Program:

Steps: 1. Start a new web site with two web forms. Let Default.aspx and Success.aspx are two web

forms.

2. Design Default.aspx page with fields Employee name, address, contact no, email id and

a submit button.

3. After filling all information, it should be displayed on Success.aspx page using Query String

or Session state management technique.

4. Code using Query String as shown below:

( Default.aspx)

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb"

Inherits="_Default" %>

<!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>Registration</title>

</head>

<body>

<form id="form1" runat="server">

<table>

<tr>

<td>

Employee Name :

</td>

<td>

<asp:TextBox ID="txtEmpName" runat="server"></asp:TextBox>

</td>

</tr>

<tr>

<td>

Address :

</td>

<td>

<asp:TextBox ID="txtAddress" runat="server"></asp:TextBox>

</td>

</tr>

<tr>

<td>

Phone No:

</td>

<td>

<asp:TextBox ID="txtPhNo" runat="server"></asp:TextBox>

</td>

</tr>

<tr>

<td>

Email Id:

</td>

<td>

<asp:TextBox ID="txtEmail" runat="server"></asp:TextBox>

</td>

</tr>

</table>

<asp:Button ID="Button1" runat="server" Text="Submit" Style="top: 157px; left: 118px;

position: absolute; height: 26px; width: 61px" />

</form>

</body>

</html>

Inline Code (Default.aspx.vb)



Public imgString As String

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles

Button1.Click

Response.Redirect("Success.aspx?name=" & txtEmpName.Text & "&address=" &

txtAddress.Text & "&phno=" & txtPhNo.Text & "&email=" & txtEmail.Text & "&photo=" &

Image1.ImageUrl)

End Sub

End Class

(Success.aspx)

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Success.aspx.vb"

Inherits="Succcess" %>





<title>Second Page</title>

</head>

<body>


<table>

<tr>

<td>

Name:

</td>

<td>

<%=Request.QueryString("name")%>

</td>

</tr>

<tr>

<td>

Address :

</td>

<td>

<%=Request.QueryString("address")%>

</td>

</tr>

<tr>

<td>

Phno:

</td>

<td>

<%=Request.QueryString("phno")%>

</td>

</tr>

<tr>

<td>

Email :

</td>

<td>

<%=Request.QueryString("email")%>

</td>

</tr>

</table>

</form>

</body>

</html>

4. Lab Exercises: [Purpose of this exercise is to use advance web controls. You can use Visual Studio .NET



2. Right click on ASP.NET page (for eg: Default.aspx) and Select “View Browser” option and


Exercise No4: ( 2 Hours) – 1 Practical Lab Assignment 4:

Program:

Steps: 1. Start a new web site with two web forms. Let Default.aspx and Default2.aspx are two

web forms.

2. Take Hyperlink, Linkbutton and Fileupload controls from toolbox.

3. Follow the code:

( Default.aspx)







<title>Advance web controls</title>

</head>

<body>


<table border="1">

<tr>

<td>

<asp:Label ID="Label1" runat="server" Text="Relative URL HyperLink"></asp:Label>

</td>

<td>

<asp:Label ID="Label2" runat="server" Text="Label"></asp:Label>

</td>

<td>

<asp:Label ID="Label3" runat="server" Text="Select the file to upload"></asp:Label>

</td>

</tr>

<tr>

<td>

<asp:LinkButton ID="LinkButton1" runat="server">LinkButton</asp:LinkButton>

</td>

<td>

<asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl="http://www.google.com"

Target="_blank" ToolTip="Visit Google.com">Visit Google.com</asp:HyperLink>

<asp:HyperLink ID="HyperLink2" runat="server" NavigateUrl="~/Default2.aspx"

Target="_self">Click here to open Default2.aspx</asp:HyperLink>

</td>

<td>

<asp:FileUpload ID="FileUpload1" runat="server" /><asp:Button ID="Button1"

runat="server"

Text="Upload File" />

</td>

</tr>

</table>

</form>

</body>

</html>

( Default.aspx.vb)



Protected Sub LinkButton1_Click(ByVal sender As Object, ByVal e As System.EventArgs)

Handles LinkButton1.Click

Label1.Text = "PostBack operation performed on clicking link button"

End Sub


Me.Load

If Not Page.IsPostBack Then

Label2.Text = "Page loaded first time."

Else

Label2.Text = "PostBack operation is completed."

End If

End Sub


Button1.Click

If FileUpload1.HasFile Then

FileUpload1.SaveAs("C:\" & FileUpload1.FileName)

Label3.Text = "File Uploaded"

Else

Label3.Text = "No uploaded file"

End If

End Sub

End Class

5. Lab Exercises: [Purpose of this exercise is to use Rich control i.e. AD ROTATOR Control. You can use Visual

Studio .NET environment to type the program. Execution of program in two ways.




3. Refresh the page to see the different images.

Exercise No5: ( 2 Hours) – 1 Practical Lab Assignment 5: Using Ad Rotator control

Program:

Steps: 1. Start a new web site with web forms Default.aspx and Add XMLFile.xml file by right

clicking on Solution Explorer and Select Add New Item and Select XMLFile.xml.

2. Add Ad rotator control in Default.aspx page.

3. Add some images with extension .JPG or .JPEG in application folder.

3. Write the code in Default.aspx and XMLFile.xml as shown below:

( Default.aspx)







<title>Adrorator control</title>

</head>

<body>


<asp:AdRotator ID="AdRotator1" AdvertisementFile ="~/XMLFile.xml" runat="server" Target

="_blank " />

</form>

</body>

</html>

(XMLFile.xml)

<?xml version="1.0" encoding="utf-8" ?>

<Advertisements>

<Ad>

<ImageUrl>f2f53cf6.jpg</ImageUrl>

<NavigateUrl>www.gmail.com</NavigateUrl>

<Impressions>2</Impressions>

</Ad>

<Ad>

<ImageUrl>3-idiots-13h.jpg</ImageUrl>

<NavigateUrl>www.yahoo.com</NavigateUrl>

<Impressions>2</Impressions>

</Ad>

</Advertisements>

6. Lab Exercises: [Purpose of this exercise is to use Validation controls .You can use Visual Studio .NET





Exercise No6: ( 2 Hours) – 1 Practical Lab Assignment 6: Using Validation controls

Program:

Steps:

1. Design a Registration form Default.aspx page with fields Username, choose password,

confirm password, age, email id, city and a submit button.

2. Use:

a) RequiredFieldValidator - for Username, Choose password, Age, Email Id fields.

b) CompareValidator - for Confirm password field.

c) RangeValidator - for Age field.

d) RegularExpressionValidator - for Email field.

e) CustomValidator - for City field.

3. Set the properties for:

a) RequiredFieldValidator - ControlToValidate, ErrorMessage.

b) CompareValidator - ControlToCompare, ControlToValidate, ErrorMessage.

c)RangeValidator - ControlToValidate, ErrorMessage, MaximumValue, MinimumValue,

Type.

d) RegularExpressionValidator - ControlToValidate, ErrorMessage ,ValidationExpression.

e) CustomValidator - ControlToValidate, ErrorMessage, ClientValidationFunction.

4. Write a Client side script to use CustomValidator control (either JavaScript or VBScript).

5. Display message “Successfully Submitted” after Clicking Submit button i.e after successful

validation of registration page.

( Default.aspx)








<script language="JavaScript" type="text/javascript">

function CityValidate(ctl, args)

{

args.IsValid=(args.Value != "Select");

}

function window_onload() {

CityValidate ();

}

</script>

</head>

<body onload="return window_onload()">


<table>

<tr>

<td>

UserName :

</td>

<td>

<asp:TextBox ID="txtUserName" runat="server"></asp:TextBox>

</td>

<td>

<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"

ControlToValidate="txtUserName" ErrorMessage="*"></asp:RequiredFieldValidator>

</td>

</tr>

<tr>

<td>

Choose Password :

</td>

<td>

<asp:TextBox ID="txtChoosePwd" runat="server"></asp:TextBox>

</td>

<td>


ControlToValidate="txtChoosePwd" ErrorMessage="*"></asp:RequiredFieldValidator>

</td>

</tr>

<tr>

<td>

Confirm Password :

</td>

<td>

<asp:TextBox ID="txtConfirmPwd" runat="server"></asp:TextBox>

</td>

<td>

<asp:CompareValidator ID="CompareValidator1" runat="server"

ControlToCompare="txtChoosePwd" ControlToValidate="txtConfirmPwd"

ErrorMessage="Password Mismatch"></asp:CompareValidator>

</td>

</tr>

<tr>

<td>

Age:

</td>

<td>

<asp:TextBox ID="txtAge" runat="server"></asp:TextBox>

</td>

<td>


ControlToValidate="txtAge" ErrorMessage="*"></asp:RequiredFieldValidator>

<asp:RangeValidator ID="RangeValidator1" runat="server"

ControlToValidate="txtAge" ErrorMessage="18-40" MaximumValue="40"

MinimumValue="18" Type="Integer"></asp:RangeValidator>

</td>

</tr>

<tr>

<td>

Email Id:

</td>

<td>

<asp:TextBox ID="txtEmail" runat="server"></asp:TextBox>

</td>

<td>


ControlToValidate="txtEmail" ErrorMessage="*"></asp:RequiredFieldValidator>

<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server"

ControlToValidate="txtEmail" ErrorMessage="Invalid email"

ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-

.]\w+)*"></asp:RegularExpressionValidator>

</td>

</tr>

<tr>

<td>

City:

</td>

<td>

<asp:DropDownList ID="CityDropDown" runat="server"

CausesValidation="True">

<asp:ListItem>Select</asp:ListItem>

<asp:ListItem>Pune</asp:ListItem>

<asp:ListItem>Mumbai</asp:ListItem>

</asp:DropDownList>

</td>

<td>

<asp:CustomValidator ID="CustomValidator1" runat="server"

ErrorMessage="Please select the city" ClientValidationFunction="CityValidate"

ControlToValidate="CityDropDown"></asp:CustomValidator>

</td>

</tr>

</table>

<asp:Button ID="Button1" runat="server" Text="Submit" Style="top: 211px; left: 125px;

position: absolute; height: 26px; width: 61px" />

</form>

</body>

</html>

‘Inline code( Default.aspx.vb)




Button1.Click

Response.Write("Submitted successfully...")

End Sub

End Class

7. Lab Exercises: [Purpose of this exercise is to use ADO.NET technology for showing records in Grid view from

Database .You can use Visual Studio .NET environment to type the program. Execution of

program in two ways.




Exercise No7: ( 2 Hours) – 1 Practical Lab Assignment 7: ADO.NET code to show records in Gridview control

Program:

Steps:

1. Start a new website with Default.aspx web page.

2. Add Grid view control from tool box.

3. Steps for connecting to database:

a) Import the namespaces System.data and System.Data.SqlClient.

b) Establish the connection using connection object.

c) Execute the SQL Query using Sqldataadapter object.

d) Create a new dataset object.

e) Fill the dataset with table using Dataadapters Fill() method.

f) Bind the filled dataset with Grid view control.

( Default.aspx)

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="Default"

%>





<title>Grid view control</title>

</head>

<body>


<asp:GridView ID="GridView1" runat="server" CellPadding="4" ForeColor="#333333"

GridLines="None">

<FooterStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />

<RowStyle BackColor="#E3EAEB" />

<PagerStyle BackColor="#666666" ForeColor="White" HorizontalAlign="Center" />

<SelectedRowStyle BackColor="#C5BBAF" Font-Bold="True" ForeColor="#333333" />

<HeaderStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />

<EditRowStyle BackColor="#7C6F57" />

<AlternatingRowStyle BackColor="White" />

</asp:GridView>

</form>

</body>

</html>


Imports System.Data

Imports System.Data.SqlClient

Partial Class Default


Dim con As String

Dim conn As SqlConnection

Dim da As SqlDataAdapter

Dim ds As New DataSet


Me.Load

Try

con =

System.Configuration.ConfigurationManager.ConnectionStrings("myConnection").ConnectionString

' Taking connectionstring from Web.config file

conn = New SqlConnection(con) 'Establishing Connection with database

da = New SqlDataAdapter("Select * from Item", conn) 'Executing SQL query

da.Fill(ds, "Item") 'Filling dataset with Item table

GridView1.DataSource = ds

GridView1.DataBind() ' Binding dataset with Grid view control

Catch ex As Exception

Response.Write("Error:" & ex.Message)

End Try

End Sub

End Class

(Web.config)

<connectionStrings>

<add name="myConnection" connectionString="Data Source=JNEC02;Initial Catalog=JNEC;User

ID=sa;Password=sa"/>

</connectionStrings>

8. Lab Exercises: [Purpose of this exercise is to use ADO.NET technology for inserting, updating and deleting

records from Database .You can use Visual Studio .NET environment to type the program.

Execution of program in two ways.




Exercise No8: ( 2 Hours) – 1 Practical Lab Assignment 8: ADO.NET code to insert,update and delete records from database

Program:

Steps:


2. Add textboxes for username, password, date of birth, email, gender, contact no and

Button controls for Insert, Update and Delete.

3. Steps for connecting to database:

a) Import the namespaces System.data and System.Data.SqlClient.

b) Establish the connection using connection object.

c) Open the connection.

d) Write SQL query in lCommand object.

e) Use Command methods for executing sql query.

f) Close the connection.

4. Use the validation controls for validation.

( Default.aspx)






<head id="Head1" runat="server">


</head>

<body>


<table border="1" style="width: 408px">

<tr>

<td>

UserName:

</td>

<td>

<asp:TextBox ID="txtName" runat="server" Width="269px"></asp:TextBox>

</td>

</tr>

<tr>

<td>

Password:

</td>

<td>

<asp:TextBox ID="txtPwd" runat="server" Width="269px"></asp:TextBox>

</td>

</tr>

<tr>

<td>

Date of Birth(mm/dd/yyyy) :

</td>

<td>

<asp:TextBox ID="txtDOB" runat="server" Width="269px"></asp:TextBox>

</td>

</tr>

<tr>

<td>

Contact no:

</td>

<td>

<asp:TextBox ID="txtContact" runat="server" Width="269px"></asp:TextBox>

</td>

</tr>

<tr>

<td>

Email Id :

</td>

<td>

<asp:TextBox ID="txtEmail" runat="server" Width="269px"></asp:TextBox>

</td>

</tr>

<tr>

<td>

Gender :

</td>

<td>

<asp:RadioButtonList ID="RBL1" runat="server">

<asp:ListItem>Male</asp:ListItem>

<asp:ListItem>Female</asp:ListItem>

</asp:RadioButtonList>

</td>

</tr>

<tr>

<td colspan="3" align="center">

<asp:Button ID="btnInsert" runat="server" Text="Insert" />

<asp:Button ID="btnUpdate" runat="server" Text="Update" />

<asp:Button ID="btnDelete" runat="server" Text="Delete" />

<asp:Button ID="btnSearch" runat="server" Text="Search" />

</td>

</tr>

</table>

</form>

</body>

</html>

'Inline Code (Default.aspx.vb)

Imports System.Data

Imports System.Data.SqlClient



Dim con As SqlConnection

Dim da As SqlDataAdapter

Dim cmd As SqlCommand

Dim dr As SqlDataReader


Me.Load

Try

con = New

SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings("conn").ConnectionS

tring)


Response.Write("Error1:" & ex.Message)

End Try

End Sub

'Inserting Records

Protected Sub btnInsert_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles

btnInsert.Click

Dim inQuery, gender As String

Try

con.Open()

If RBL1.SelectedIndex = 0 Then

gender = "M"

Else

gender = "F"

End If

inQuery = "Insert into Registration values('" & txtName.Text & "','" & txtPwd.Text & "','"

& Convert.ToDateTime(txtDOB.Text) & "'," & Convert.ToInt64(txtContact.Text) & " , '" &

txtEmail.Text & "' , '" & gender & "')"

cmd = New SqlCommand(inQuery, con)

cmd.ExecuteNonQuery()

Response.Write("Saved Successfully...")

con.Close()


Response.Write(ex.Message)

End Try

End Sub

'Deleting the record

Protected Sub btnDelete_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles

btnDelete.Click

Dim deleteQuery As String

Try

con.Open()

deleteQuery = "Delete from Registration where userName='" & txtName.Text & "'"

cmd = New SqlCommand(deleteQuery, con)


Response.Write("Record deleted...")

con.Close()



End Try

End Sub

'Updating the records

Protected Sub btnUpdate_Click(ByVal sender As Object, ByVal e As System.EventArgs)

Handles btnUpdate.Click

Dim updateQuery, gender As String

Try

con.Open()

If RBL1.SelectedIndex = 0 Then

gender = "M"

Else

gender = "F"

End If

updateQuery = "Update Registration set password='" & txtPwd.Text & "',dateofbirth='" &

Convert.ToDateTime(txtDOB.Text) & "',contactno=" & Convert.ToInt64(txtContact.Text) &

",email='" & txtEmail.Text & "',gender='" & gender & "'where userName='" & txtName.Text & "'"

cmd = New SqlCommand(updateQuery, con)


Response.Write("Updated Successfully...")

con.Close()



End Try

End Sub

'Searching the record

Protected Sub btnSearch_Click(ByVal sender As Object, ByVal e As System.EventArgs)

Handles btnSearch.Click

Dim selectQuery As String

Try

con.Open()

selectQuery = "Select * from Registration where userName='" & txtName.Text & "'"

cmd = New SqlCommand(selectQuery, con)

dr = cmd.ExecuteReader

While dr.Read

txtPwd.Text = dr(1)

txtDOB.Text = dr(2).ToString

txtContact.Text = dr(3).ToString

txtEmail.Text = dr(4)

If (dr(5) = "M") Then

RBL1.SelectedIndex = 0

Else

RBL1.SelectedIndex = 1

End If

End While

con.Close()



End Try

End Sub

End Class

9. Lab Exercises: [Purpose of this exercise is to use data list and repeater controls .You can use Visual Studio .NET





Exercise No9: ( 2 Hours) – 1 Practical Lab Assignment 9: Using Data List and repeater controls

Program:

Steps:


2. Add data list and repeater controls.

3. Add XML file (Player.xml) and use it as data source.

4. If Not Page.IsPostBack Then a) Take new data set objects.

b) Use ReadXml method of data set object to map XML file.

c) Bind the new dataset objects with both DataList and Repeater control.

End if

( Default.aspx)







<title>DataList and Repeater control</title>

</head>

<body>


Data List control :

<asp:DataList ID="Player" runat="server">

<HeaderTemplate>

Team Ranking</HeaderTemplate>

<ItemTemplate>

<%#Container.DataItem("Name")%>

= ><%#Container.DataItem("Rank")%>

</ItemTemplate>

<FooterTemplate>

Copywrite 2010</FooterTemplate>

</asp:DataList>

<br />

Repeater control:

<asp:Repeater ID="Game" runat="server">

<HeaderTemplate>

<table border="1" width="40%">

<tr>

<th>

Name

</th>

<th>

Rank

</th>

</tr>

</HeaderTemplate>

<ItemTemplate>

<tr>

<td>

<%#Container.DataItem("Name")%>

</td>

<td>

<%#Container.DataItem("Rank")%>

</td>

</tr>

</ItemTemplate>

<FooterTemplate>

</table>

</FooterTemplate>

</asp:Repeater>

</form>

</body>

</html>


Imports System.Data




Me.Load


Dim info = New DataSet

info.ReadXml(MapPath("Player.xml"))

Player.DataSource = info

Player.DataBind()

End If


Dim info1 = New DataSet

info1.ReadXml(MapPath("Player.xml"))

Game.DataSource = info1

Game.DataBind()

End If

End Sub

End Class

( Player.xml)

<?xml version="1.0" encoding="utf-8" ?>

<Cricket>

<Team>

<Name>India</Name>

<Rank>1</Rank>

</Team >

<Team>

<Name>Australia</Name>

<Rank>2</Rank>

</Team >

</Cricket>

Exercise No10: ( 2 Hours) – 1 Practical Lab Assignment 10: Web Services Demo.

Program:

Steps:


2. Right click in Solution explorer => Add New item => Select Web Service.

a) Give the name myWebService to the web service.

b) (i) One file gets created in App_Code folder with extension .vb.

(ii) Second gets created in application folder with extension .asmx.

3. Steps for creating web services:

a) Write a user defined methods in myWebService.vb.

For e.g.:

<WebMethod()> _

Public Function myFunction() As String

Return "This myFunction in Webservice"

End Function

b) (i) Right click in solution explorer => Add Web Reference=> Select browser to

option as “Web Services in this solution”.It will display the number of web services in

the solution.

(ii) Select the web service you want to use.

(iii) It will display all the methods.

(iv) Select the method you want to use and Click “Invoke” button to see the xml

message returned by the method.

c) Give the web reference name (by default “localhost”) and click Add Reference

button.

d) Web reference with name local host gets created in App_WebReferences folder.

e) Check if files with extensions .disco and .wsdl gets generated in localhost.

4. In code file (Default.aspx.vb):

a. Import the namespace System.Web.Services.

b. Create an object of web service.(i.e myWebService)

c. Use the methods of respective web service.

5. Click the “Build” menu in application => select “Build web site”.

If “Build succeeded” message comes in status bar.

Execute the application and view the results

Else

Find out the errors and solve the errors.

End if


Imports System.Web.Services



Dim mt As New myWebService 'Creating an object webservice


Me.Load

Response.Write(mt.myFunction()) 'Using the method of respective web service

End Sub

End Class

‘Webservice( myWebSerivce.vb)

Imports System.Web

Imports System.Web.Services

Imports System.Web.Services.Protocols

<WebService(Namespace:="http://tempuri.org/")> _

<WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _

<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _

Public Class myWebService

Inherits System.Web.Services.WebService

<WebMethod()> _

Public Function HelloWorld() As String

Return "Hello World"

End Function

<WebMethod()> _

Public Function myFunction() As String

Return "This is myFunction in Webservice"

End Function

End Class

4. Quiz on the subject:

Quiz should be conducted on tips in the laboratory, recent trends and subject knowledge of the

subject. The quiz questions should be formulated such that questions are normally are from the

scope outside of the books. However twisted questions and self formulated questions by the

faculty can be asked but correctness of it is necessarily to be thoroughly checked before the

conduction of the quiz.

5. Conduction of Viva-Voce Examinations:

Teacher should oral exams of the students with full preparation. Normally, the objective questions

with guess are to be avoided. To make it meaningful, the questions should be such that depth of

the students in the subject is tested Oral examinations are to be conducted in co-cordial

environment amongst the teachers taking the examination. Teachers taking such examinations

should not have ill thoughts about each other and courtesies should be offered to each other in

case of difference of opinion, which should be critically suppressed in front of the students.

6. Submission:

Document Standard:

A] Page Size A4 Size

B] Running text Justified text

C] Spacing 1 Line

D] Page Layout and Margins (Dimensions in Cms)

Normal Page Horizantal

2.0

2.5

2.0

2.5 2.0

2.0

0.7”

0.7”

2.0

2.0

Desription Font Size Boldness Italics Underline Capitalize

College Name Arial 24 ----- ------ Yes ----------

Document Title Tahoma 22 ----- ------ --------- ----------

Document Subject Century Gothic 14 ----- ------ --------- Capital

Class Bookman old Slyle 12 ----- ------ --------- ----------

Document No Bookman old Slyle 10 ----- ------ --------- ----------

Copy write inf Bookman old Slyle 9 ----- ------ --------- ----------

Forward heading Bookman old Slyle 12 ----- ------ Yes Capital

Forward matter Bookman old Slyle 12 ----- ------ --------- ----------

Lab man Contents title Bookman old Slyle 12 ----- ------ Yes Capital

Index title Bookman old Slyle 12 Yes ------ Yes Capital

Index contents Bookman old Slyle 12 ----- ------ --------- ----------

Heading Tahoma 14 Yes Yes Yes ----------

Running Matter Comic Sans MS 10 ----- ------ --------- ----------

7. Evaluation and marking system:

Basic honesty in the evaluation and marking system is absolutely essential and in the process

impartial nature of the evaluator is required in the examination system to become popular amongst

the students. It is a wrong approach or concept to award the students by way of easy marking to

get cheap popularity among the students to which they do not deserve. It is a primary

responsibility of the teacher that right students who are really putting up lot of hard work with

right kind of intelligence are correctly awarded.

The marking patterns should be justifiable to the students without any ambiguity and teacher

should see that students are faced with unjust circumstances.

Documents

MCA Lab Manual ASP.NET · LABORATORY MANUAL CONTENTS This manual is intended for the students S.Y (M.C.A) engineering for the subject of MTL-II (Microsoft Technology Lab). Subject