Asp.Net & Interview Questions

Monday, 2 September 2013

Sending Email in Asp.net

1. Open Visual Studio
2. Create a New Website
3. Create Web Page
4. Design UI like below image

5. Add namespaces

using System.Net;

using System.Net.Mail;

using System.Net.Security;

using System.Security.Cryptography.X509Certificates;

using System.IO;

6. Write Code on Send Button Click Event

try

{

MailMessage mail = new MailMessage();

mail.To.Add(txtto.Text);

mail.From = new MailAddress("sapna@gmail.com");// your email

mail.Subject = txtsubject.Text;

string Body = null;

Body = txtbody.Text;

mail.Body = Body;

mail.IsBodyHtml = true;

SmtpClient smtp = new SmtpClient();

smtp.Host = "smtp.gmail.com";

smtp.Credentials = new System.Net.NetworkCredential("sapna@gmail.com", "123456");//your email and password

smtp.EnableSsl = true;

ServicePointManager.ServerCertificateValidationCallback = delegate(object s, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) { return true; };

smtp.Send(mail);

}

catch (Exception ex)

{

ex.ToString();

}

Sunday, 1 September 2013

FileUpload Example in Asp.net

1. Open Visual Studio
2. Create a New Website
3. Create Web Page
4. Place FileUpload Control and Button on Page
5. Create Folder in Website to Save File

6. Write Code on Upload Button Click Event

protected void Button1_Click(object sender, EventArgs e)

{

if (FileUpload1.HasFile)

{

string path=Server.MapPath("img/") + FileUpload1.PostedFile.FileName;

FileUpload1.SaveAs(path);

}

7. Refresh Website and See Uploaded File in img Folder.

PlaceHolder Example (Dynamic Generate Controls ) in Asp.net

1. Open Visual Studio
2. Create a New Website
3. Create Web Page
4. Place PlaceHolder Control on Page
5. Write Code on Page_Load Event
protected void Page_Load(object sender, EventArgs e)
{
Button btn = new Button();
btn.Text = "This is Dynamically generated button";
pl1.Controls.Add(btn);

}

Multiview and View Example in Asp.net

1. Open Visual Studio
2. Create a New Website
3. Create Web Page
4. Place MultiView on a page and two View inside Multiview Control
5. Set ActiveViewIndex Property of MultiView to 0

6. Add Code to Click Event of Next Button

protected void Button2_Click(object sender, EventArgs e)

{

MultiView1.ActiveViewIndex = 1;

}

7. Add Code to Click Event of the Previous Button

protected void Button4_Click(object sender, EventArgs e)

{

MultiView1.ActiveViewIndex = 0;

}

8. Full code

MultiviewDemo.aspx

.style1

{

width: 100%;

}

.style3

{

width: 265px;

}

.style4

{

width: 271px;

}

.style5

{

width: 105px;

}

.style6

{

width: 125px;

}

</style>

</head>

<body>

<div>

<asp:MultiView ID="MultiView1" runat="server" ActiveViewIndex="0">

<asp:View ID="View1" runat="server">

<tr>

<td>

 </td>

</tr>

<tr>

Username</td>

<td>

<asp:TextBox ID="TextBox1" runat="server" Width="216px"></asp:TextBox>

</td>

</tr>

<tr>

Password</td>

<td>

<asp:TextBox ID="TextBox2" runat="server" Width="216px"></asp:TextBox>

</td>

</tr>

<tr>

<asp:Button ID="Button1" runat="server" Text="Login" />

</td>

<td>

<asp:Button ID="Button2" runat="server" onclick="Button2_Click" Text="Next" />

</td>

</tr>

</table>

</asp:View>

<br />

<asp:View ID="View2" runat="server">

<tr>

Registration form</td>

<td>

 </td>

</tr>

<tr>

Name</td>

<td>

<asp:TextBox ID="TextBox3" runat="server" Width="216px"></asp:TextBox>

</td>

</tr>

<tr>

Email</td>

<td>

<asp:TextBox ID="TextBox4" runat="server" Width="216px"></asp:TextBox>

</td>

</tr>

<tr>

Address</td>

<td>

<asp:TextBox ID="TextBox5" runat="server" Width="216px"></asp:TextBox>

</td>

</tr>

<tr>

Phone</td>

<td>

<asp:TextBox ID="TextBox6" runat="server" Width="216px"></asp:TextBox>

</td>

</tr>

<tr>

<asp:Button ID="Button3" runat="server" Text="Submit" />

</td>

<td>

<asp:Button ID="Button4" runat="server" onclick="Button4_Click"

Text="Previous" />

</td>

</tr>

<tr>

 </td>

<td>

 </td>

</tr>

</table>

</asp:View>

</asp:MultiView>

</div>

</form>

</body>

</html>

MultiviewDemo.aspx.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

public partial class MultiviewDemo : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

protected void Button2_Click(object sender, EventArgs e)

{

MultiView1.ActiveViewIndex = 1;

}

protected void Button4_Click(object sender, EventArgs e)

{

MultiView1.ActiveViewIndex = 0;

}

DatePicker in Asp.net

1. Open Visual Studio
2. Create a New Website
3. Create Web Page
4. Place TextBox, Button and Calendar Control

5. Write Code on Page_Load Event

protected void Page_Load(object sender, EventArgs e)

{

Calendar1.Visible = false;

}

6. Write Code on Button Click Event

protected void Button1_Click(object sender, EventArgs e)

{

if (Calendar1.Visible == false)

{

Calendar1.Visible = true;

}

else

{

Calendar1.Visible = false;

}

7. Write Code on Calendar Event

protected void Calendar1_SelectionChanged(object sender, EventArgs e)

{

txtdate.Text=Calendar1.SelectedDate.ToString("dd-MM-yyyy");

}

8.Full Code

DatePicker.aspx Code

.style1

{

width: 100%;

}

.style2

{

width: 227px;

}

</style>

</head>

<body>

<tr>

<asp:TextBox ID="txtdate" runat="server" Width="173px"></asp:TextBox>

<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="..." />

</td>

<td>

 </td>

</tr>

<tr>

<asp:Calendar ID="Calendar1" runat="server"

onselectionchanged="Calendar1_SelectionChanged"></asp:Calendar>

</td>

<td>

 </td>

</tr>

<tr>

 </td>

<td>

 </td>

</tr>

</table>

<div>

</div>

</form>

</body>

</html>

DatePicker..aspx.cs Code

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

public partial class DatePicker : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

Calendar1.Visible = false;

}

protected void Button1_Click(object sender, EventArgs e)

{

if (Calendar1.Visible == false)

{

Calendar1.Visible = true;

}

else

{

Calendar1.Visible = false;

}

protected void Calendar1_SelectionChanged(object sender, EventArgs e)

{

txtdate.Text=Calendar1.SelectedDate.ToString("dd-MM-yyyy");

}

Addition of 2 numbers in Asp.net

1. Open Visual Studio
2. Create a New Website
3. Create Web Page

4. Add Code to Click Event of Button Addition

protected void Button1_Click(object sender, EventArgs e)
{
Label1.Text(Convert.ToInt32(txtnum1.Text)+Convert.ToInt32(txtnum2.Text)).ToString();

}

ListBox Example

1. Open Visual Studio
2. Create a New Website
3. Create Web Page
4. Place ListBox, TextBox and two Buttons on Page as the shown image below:

5. Add Code to Click Event of Button Add

protected void Button1_Click(object sender, EventArgs e)

{

ListBox1.Items.Add(txtitem.Text);

txtitem.Text = "";

}

6. Add Code to Click Event of Button Remove

protected void Button2_Click(object sender, EventArgs e)

{

ListBox1.Items.Remove(ListBox1.Items[ListBox1.SelectedIndex]);

}

Asp.Net & Interview Questions

Pages

Monday, 2 September 2013

Sending Email in Asp.net

Sunday, 1 September 2013

FileUpload Example in Asp.net

PlaceHolder Example (Dynamic Generate Controls ) in Asp.net

Multiview and View Example in Asp.net

DatePicker in Asp.net

Addition of 2 numbers in Asp.net

ListBox Example

SQL server tricky questions

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