How to Bind State by Selecting Country DropDownList using WebMethod in Asp.net

Introduction:-

                 In this article I have explained  how to bind a dropdownlist using Ajax.

Description:-

               Some developers binding the dropdownlist directly in pageload.which will give low performance to your site.Now a days every user wants to avoid unnecessary postbacks during any events.Lets take a common example that  I want to bind a state list according to the country selection. I can do it in code behind selectedindexchange event,but it will result performance issue as discussed previously,so I will prefer to use ajax here.

               In my previous post I have explained Data Binding in DropDownList Using Jquery , AutoComplete Text Using Jquery and web services , Insert Data in Sqlserver DataBase using JSON, ASP.NET Web services and jQuery , how to populate dropdown based on other dropdown or working with cascading dropdowns in asp.net , Ajax Cascading Dropdownlist Sample with database using asp.net , How to Select, Update, Insert Data in database Using Json, Jquery and Webservices .

How to Upload and Save Image Without any Postback by User in Asp.net

Introduction:-

                  Here I have explained how to store and display image instantly after choose by user in asp.net using jQuery.

Description:-

                 In this article I have explained how to avoid upload button functionality after choosing a image in asp.net. Some users usually don't likes to view image after clicked on upload button or any button control,They always prefers to view image instantly after selecting a specific image from dialog box.

               It make sense that it will possible only if we will use ajax or some client side functions.so here I am using javascript functions with taking one Image control and File upload button to open a dialog to choose a image from it.In my other post I have explained

How to Update previous Image URL During Update Mode , and  FileUpload Content Refreshed During pageloadif it is used in a user control .
  To get the result follow the below steps. where I  have explained each content with source code.

How to Save Image in Different Size in Asp.net

Introduction:-

                     This article explains how to create a image with different size in asp.net.

Description:-

                     In my previous post How to Upload and Save Image Without any Postback by User in Asp.net ,I have explained on image file validation check in javascript as well as instantly reading the image after selecting from dialog box.Here I am going to explain how you can store that same image in different sizes.
   
                   You have to specify some unit to store image in different sizes.As I have explained before you have to take one image upload control and one image viewer control.There is so many different approach is there to do this work but I am providing code which is very simple to implement as well as light weight than other approaches.

Encription and Decription of Password In Asp.net C#

Introduction:-

                     I have explained here how to encrypt and decrypt a string value.

 

Description:-

                     It is became mandatory for all developer to store their password in encrypted because of security reason.And it is the best practice for a developer.If someone wants to store something secretly ,then we should go for it .To store a password in encrypt manner ,it will create  headache  for  hackers to find your password easily.

                                If you will store some string value in encrypted way,then it is quite obvious for an developer to decrypt that string for further use in that application.For an example if some store the encrypted  password in database,But while they want to retrieve their password it won't come the exact one rather encrypted one.Hence we will decrypt that string in that scenario.  

Send sms to mobile in asp.net using fullonsms free api

Introduction:-

                   How to send free sms to mobile using fullonsms api in asp.net.

Description:-

                 It is very easy to send a sms by using fullonsms in asp.net.Before that you should have an account their.If you do not have an account then follow the steps to create one.

First create one account in http://fullonsms.com/login.php and in source code update the username and password accordingly.

After you have created an account,you can use that registered number to send sms to other numbers in asp.net.

There is a drawbacks here ,First it is useless for those numbers who has not registered in fullonsms.That means both the sender  and the receiver  should have an account on fullonsms.

If the receiver doesn’t have an account on fullonsms ,then you can’t able to send sms to that number unless and until that user is not going to register their number on fullonsms.

For me you should go for a bulk sms package service rather for fullonsms and way2sms free api.

If still you want to use free fullonsms service then follow the following procedure.

Send free sms using asp.net source code

Introduction:-

                     Here I have explained how to send sms using asp.net.

Description:-

                     In my previous article I have explained the same functionality in different approach.Also I have explained some guidelines of using this functionality in Send sms to mobile in asp.net using fullonsms free api.

As I have discussed before you should choose sms gateways package instead of free gateway like fullonsms and way2sms.

Way2sms has stopped their free services for asp.net. In the meantime fullonsms is only those user where the sender and receiver both are a registered user of fullonsms.