Asp.net- Clear Fileupload Control using JavaScript

Introduction:

Here I will explain how to clear file upload control in asp.net using JavaScript.

Description:

In previous article I explained validate file extension before file upload in JavaScript, validate file upload extension in jQuery, jQuery fixed header notification bar example and many articles relating to jQuery, JavaScript. Now I will explain how to clear file upload control in asp.net using JavaScript.

jQuery to Validate File Upload Extension in File Upload Control

Introduction:

Here I will explain how to validate uploaded file extension in file upload control using jQuery in asp.net.

Description:

In previous article I explained jQuery fixed header notification bar example, jQuery Convert uppercase to lowercase, jQuery disable specific dates in calendar control and many articles relating to jQuery. Now I will explain how to validate uploaded file extension in file upload control using jQuery in asp.net.

Ajax AsyncFileUpload control example in asp.net to upload files to server

Introduction:

Here I will explain how to use Ajax AsyncFileUpload control to upload files to folder and show progress bar during upload files to server using asp.net

Description:

Previously I explained many articles relating to Ajax. Now I will explain how to use ajax AsyncFileUpload control to upload files to folder in asp.net. Before proceed to implement sample have you install ajaxcontroltoolkit in visual studio or not if not install it otherwise if you already done then follow the below steps to implement Ajax AsyncFileUpload control example in asp.net.

save/upload files in folder and download files from folder in asp.net

Introduction:

In this article I will explain how to save/upload files in folder and download files from folder system when click on link in gridview using asp.net.

Description:
  
In many websites we will see download link whenever we click on that we will have a chance to download that files into our system.

Asp.net Create/generate thumbnails from images

Introduction

Here I will explain how to generate thumbnails dynamically from uploaded images and how to bind thumbnails to datalist using asp.net.

Description:

In previous post I explained clearly how to bind images from folder to datalist . Now I will explain how to generate thumbnails from uploaded images and how to bind those thumbnails to datalist using asp.net. In website development sometimes we get requirement like generating thumbnails from images without losing quality of image and it’s same like original image. For that first create one new website after that right click on that website select New Folder give name as Images because here I am using same name if you want to use another name you need to change the name in code also. After completion of adding Images folder to your website Design your aspx page like this 

how to bind or display images from folder to datalist using asp.net or how to insert images into folder and display images from folder to datalist using asp.net

Introduction

Here I will explain how insert images into folder and how to bind the images to datalist using asp.net.

Description:

In previous post I explained clearly how to bind images from folder to gridview . Now I will explain how to save images into folder and how we can bind that images to datalist using asp.net. It’s very easy to store images in folder and binding that images to datalist. For that first create one new website after that right click on that website select New Folder give name as Images because here I am using same name if you want to use another name you need to change the name in code also after completion of adding Images folder to your website Design your aspx page like this

how to save images into folder and images path in database and display images from folder in gridview based on images path in database using asp.net

Introduction:

In this article I will explain how to insert images into our project folder and display the images from folder in gridview based on images path in database using asp.net.

Description:
  
In my previous article I explained clearly how to insert images into database and display images from database into gridview. Now I will explain how to insert images into our project folder and insert images path into database and display images in gridview from images folder based on Images path in database. For that first create new website after that right click on your website and add new folder and give name as Images because here I used same name for my sample if you want to change folder name you need to change the images folder name in your code behind also first design table in your database like this to save images path in database.

how to insert images into database and how to retrieve and bind images to gridview using asp.net (or) save and retrieve images from database using asp.net

Introduction

Here I will explain how insert and retrieve images from database and how to bind images to gridview using asp.net.

Description:

I have worked on one social networking site at that time we save all the images in to directory folder and we save image path into database at that time I got idea to implement concept like inserting images into database and retrieving the images from database and binding images to gridview using asp.net for that we need follow below steps

Asp.net send email with images using Gmail credentials

Introduction:

 In this article I will explain how to send email by embedding images using Gmail credentials in asp.net

Description:

Generally we will send mails using SMTP server suppose if we don’t have smtp server in that situation we can send mails by using gmail smtp server in asp.net. I will explain how to implement mail sending concept using Gmail credentials using asp.net. 

To implement this concept first you need to enable POP enable in your Gmail account for this Settings-->Forwarding and POP/IMAP

Regular expressions to validate file extension before file upload in javascript using asp.net

Introduction:

Here I will explain how to check or validate file type in file upload control using JavaScript and regular expression to check file extension before file upload using JavaScript in asp.net.

Description:

I have one page that contains one file upload control to accept files from user and saving it in one folder. Here I need to give permission for user to upload only .doc or .docx files for that I have written validation by using JavaScript to validate files before save it in database.

Here I have some of regular expressions to validate file upload. 

Restrict/Increase the size of file upload in asp.net

Introduction:

Here I will explain how to increase or restrict the size of file upload in asp.net

Description:

I have one page that contains one file upload control to accept files from user and saving it in one folder. I have written code to upload file and saving it to folder it’s working fine after completion of my application my friend has tested my application like he uploaded large size file nearly 10 MB file at that time it’s shown the error page like “the page cannot displayed”. 

Again I have search in net I found that file upload control allows maximum file size is 4MB for that reason if we upload file size larger than 4MB we will get error page like “the page cannot displayed” or “Maximum request length exceeded”.

how to read or write text file using asp.net

Introdcution

Here I will explain how to read or write text file using asp.net

Description

Reading and Writing text file content in asp.net it’s very simple once if we use name space called 

using System.IO;

The System.IO namespace contains types that allow reading and writing to files and data streams and types that provide basic file and directory support.

Check this link for clear information on this namespace Click Here

After that in code we will use Class File to get properties like

how to send mail with attachement in asp.net

Introduction:

In this article I will explain how to send email with attachment using asp.net.

Description:

In previous post I explained how to send mail in asp.net now I will explain how to implement mail sending concept with attachment in asp.net.

To implement this concept first we need to following reference to our application System.Web.Mail namespace 

What is System.Web.Mail

The System.Web.Mail namespace contains classes that enable you to construct and send messages using the CDOSYS (Collaboration Data Objects for Windows 2000) message component. The mail message is delivered either through the SMTP mail service built into Microsoft Windows 2000 or through an arbitrary SMTP server.