Prevent Multiple Click on Saving in ASP.NET

This a very simple task all you have to do is just disable the Save button used in saving the data..

protected void saveButton_Click(object sender, EventArgs e)
{
//to prevent multiple click disable the button
saveButton.Enabled = false;
//-------------------
//Put code to save data
//------------------
//Data is no save so its now okay to enable the button
saveButton.Enabled = true;
}

How to ADD and USE Master Page in ASP.NET

Step 1:

Make a new Web Project

Step 2:

Click on the Solution Explorer and Add New Item and Select the Master Page

Step 3:

Put a content on your Master Page

Step 4: On the script section of the DEFAULT.ASPX put the MasterPageFile="~/MasterPage.master" tag and delete the html section of the file

Now your ready to go...

Calvin's Hub

First of all i would like to greet Calvin's Hub a happy birthday and more traffic to come. In celebration to his first year anniversary Calvin's hub launch it's first contest and it is dubbed as "Calvin's Hub Domain Name Giveaway Contest" obviously the winner will get a free domain name and hopefully it comes with a free domain hosting too. :) so if you want to win your own Domain Name join now. oh before i forget please put me as your referral :) ..

visit : www.calvinshub.com

Backup MySQL Database to a file

Backup MySQL Database to a file

Backing up your database is a very important system administration task, and should generally be run from a cron job at scheduled intervals. We will use the mysqldump utility included with mysql to dump the contents of the database to a text file that can be easily re-imported.

Syntax:

mysqldump -h localhost -u root -pmypassword databasename > dumpfile.sql

Example:

mysqldump -h localhost -u root -p2Uad7as9 database01 > dumpfile.sql

This will give you a text file containing all the commands required to recreate the database.

Site Keyword Rank

Search Keyword Ranking is a SEO Desktop application tool, I made that will automatically check the position of your URL for a specified Keyword on Google.

System Requirement:

Windows XP/Vista and .NET Framework 3.5

Download Site Keyword Rank

Clipboard Monitor + Source

Here is a sample program that will monitor your clipboard , as of right now it can only monitor text or images...

Download the Source Code :ClipboardMonitor.rar

Code:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{


public Form1()
{
InitializeComponent();
timer1.Enabled = true;
}

private void button1_Click(object sender, EventArgs e)
{

this.Close();
}

private void timer1_Tick(object sender, EventArgs e)
{
object cbText = "";
object cbFormat;
cbFormat = Clipboard.GetDataObject();

if (Clipboard.ContainsText() == true)
{
textBox1.Visible = true;
pictureBox1.Visible = false;
cbText = Clipboard.GetData(DataFormats.Text);
textBox1.Text = cbText.ToString();
}

if (Clipboard.ContainsImage() == true)
{
Object imgBMP;
textBox1.Visible = false;
pictureBox1.Visible = true;
imgBMP = Clipboard.GetImage();
pictureBox1.Image = ( Clipboard.GetImage() );
}

}
}
}

Picture / Image Loader sample in C#

[Controls to use]
PictureBox
Command Button
Dialog Box
Textbox
------------------------------------
[Source Code]

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{

DialogResult dRslt;
FileDLG.Filter = "JPEG Picture File(*.JpEg)|*.jpg|Windows Bitmap File(*.BMP)|*.bmp";
dRslt = FileDLG.ShowDialog();
textBox1.Text = FileDLG.FileName.ToString ();
}

private void FileDLG_FileOk(object sender, CancelEventArgs e)
{
pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
pictureBox1.Load(FileDLG.FileName.ToString());
}
}
}

VB.NET Office Automation FAQ

I saw this article on a forum, i think it is a very useful article regarding Office Automation

This FAQ 101 is a listing of handy links for getting started with .NET Automation/Interoperation of Microsoft Office programs such as Excel, Word, Access or Outlook.

The first place to start learning about how to integrate MS Office programs into your .NET application is the tutorial Automating Office Programs with VB.NET. It discusses what you need to know to get started, as well as addressing some of the difficulties with .NET Automation such as execution speed and deployment issues. If you are new to .NET Interoperation/Automation, then this link is a good place for you to begin.

For articles on how to fully utilize the Excel object model, Word, and Outlook please check out the following links:

(1) Understanding the Excel Object Model from a .NET Developer's Perspective
(2) Understanding the Word Object Model from a .NET Developer's Perspective
(3) Programming Microsoft Outlook with Visual Studio .NET

(We still lack a resource for utilizing the Access object model in .NET, so if someone knows of a good source, please send me a private message and we will be glad to add it.)

Some advanced forums on MS Office programming include:

(1) .NET Office Automation (XVBT)
(2) Visual Studio Tools for Office Forum (MSDN)
(3) COM Add-ins Forum (MSDN)
(4) Interoperation / Office Integration (XDNT)

Microsoft Office Programs are still COM ActiveX Servers, so the best help regarding specific commands or techniques can be often found in the VBA Forums. If your question is .NET-specific, please place your question in the .NET Office Automation forum. But if your question regards the Microsoft Office object model, as called from VBA or Visual Basic 6.0, then the following VBA/VB6 Office Integration forums can be your best bet:

(1) VBA / Office Integration forum (XVBT)
(2) Excel VBA forum (XVBT)

For some general articles regarding MS Office Interoperation from your .NET application, see the following links:

(1) Automating Office Programs with VB.NET
(2) Creating Office Managed COM Add-Ins with Visual Studio .NET
(3) HOWTO: Run Office Macros by Using Automation from Visual Basic
(4) Develop Microsoft Office Solutions with Visual Studio .NET

For articles dealing with execution or deployment issues and problems:

(1) Office Application Does Not Quit After Automation from VS.NET Client
(2) Microsoft Office XP PIAs Are Available for Download
(3) Office XP Primary Interop Assemblies Known Issues