Dynamically create controls in asp.net handle button click events

Introduction:

In this article I will explain how to create dynamic controls like button, linkbutton and other controls and how to handle button click events in asp.net.

Description:

In previous posts I explained how to create controls dynamically in asp.net and many articles relating to Asp.net, JQuery, and SQL etc. Now I will explain how to handle dynamically created controls click events in asp.net for that first we need to write the following code in your aspx page

Asp.net get twitter logged in user details username, profile image, twitter followers

Introduction: 

In this article I will explain how to get Username, twitter followers, recent tweets, number of tweets and profile image of twitter logged in user using asp.net.

Description:

In previous post I explained how to use twitter api login authentication to website in asp.net. Now I will explain how to get twitter logged in userdetails like username, profile image, twitter followers and recent tweets etc using asp.net.

keep-maintain password textbox value during postback asp.net

Introduction:

In this article I will explain how to keep or maintain text of password textbox during postback in asp.net

Description:

In previous posts I explained many articles relating to Asp.net, JQuery, and SQL etc. Now I will explain how to maintain text of password textbox during postbacks in asp.net. Generally if you observer password textbox it won’t maintain text if any postback happens like as shown below

Asp.net display files in gridview from file-server directory

Introduction: 

In this article I will explain how to show or display files from file directory in gridview using asp.net.

Description:

In previous post I explained how to save or upload files to server in asp.net and Download files folder in asp.net. Now I will explain how to display files from file directory in gridview using asp.net.

If we want to implement functionality like display files from file directory gridview check below post here I explained clearly how to save files in folder and how to display files in gridview from files directory and how to download files from gridview in asp.net

Download files from gridview with linkbutton click in asp.net

Introduction: 

In this article I will explain how to download files from server whenever we click on linkbutton in gridview in asp.net.

Description:

In previous post I explained how to save or upload files to server in asp.net and Download files folder in asp.net. Now I will explain how to download files from server with gridview linkbutton click in asp.net.

If we want to implement functionality like download files from gridview when we click linkbutton for that check below post

Regular expression to validate date in mm/dd/yyyy format in JavaScript

Introduction:

Here I will explain how to calculate age of person from date of birth and regular expression for mm/dd/yyyy format using JavaScript.

Description:

In some situation we need to display age of person based on date of birth .In that situation we can calculate age of person using JavaScript by comparing present date and date of birth as shown below. Here I have a one textbox every time I need to validate that data whether user enter valid data or not if the date not in mm/dd/yyyy format or not.

Regular expression for mm/dd/yyyy date format is

re=/^(0[1-9]|1[012])[- /.](0[1-9]|[12][0-9]|3[01])[- /.](19|20)\d\d+$/;

If you want to implement code for calculate age of person using javascript design your aspx page like this

how to find ip address in asp.net behind proxy in c# vb.net

Introduction: 

In this article I will explain how to find system or client machine IP address from which user visited the website in asp.net behind proxy in c# and vb.net.

Description:
  
In previous posts I explained JavaScript Get User IP Address, City, Latitude, Longitude, how to find client machine IP using jquery in asp.nt relating to JQuery. Now I will explain how to get system or client IP address of machine from which the user visited the website in asp.net in c# and vb.net. To implement this one write the code as shown below

how to get-find ip address of client machine in asp.net using jquery

Introduction: 

In this article I will explain how to get or find IP address of client machine in asp.net using JQuery.

Description:
  
In previous posts I explained many articles relating to JQuery. Now I will explain how to get client machine IP address of client machine in asp.net using jquery. To implement this one write the code as shown below

JQuery Scroll to top button,Back to top button option on webpage in asp.net

Introduction:

In this article I will explain how to show Back to Top or Scroll To Top button option in website using JQuery when user scroll down webpage in asp.net.

Description:
  
In previous posts I explained many articles relating to JQuery. Now I will explain how to show Back to Top or Scroll To Top button options in website when users scroll down webpage. In many sites we will see option like Back to Top or Scroll To Top button option when we scroll the webpage down this type of functionality we can implement easily by using JQuery when scrollbar top position greater than certain value. To implement this one write the code as shown below

Change-Reduce size of jquery datepicker in asp.net

Introduction:

In this article I will explain how to reduce or change size of JQuery UI datepicker control or calendar control in asp.net.

Description:
  
In previous post I explained many articles relating to JQuery UI datepicker. During work with JQuery UI Datepicker I face problem to reduce or change the size of datepicker control in asp.net at that time I decided it’s better to write article on this. By default if we use JQuery UI datepicker control it will like this

Regular expression to validate phone number using jquery in asp.net

Introduction: 

Here I will explain how to validate phone number with regular expression using Jquery in asp.net.

Description:
  
In previous articles I explained validate email address using JQuery in asp.net and many articles relating to JQuery. Now I will explain how to use regular expression to validate phone number using JQuery in asp.net.

To implement this one we need to write code as shown below in your aspx page

jQuery Email Address Validation with Regular Expression in Asp.net

Introduction: 

Here I will show how to validate email address using jQuery with regex or regular expression or validate email address in jquery using regular expression or email validation using jQuery in asp.net.

Description:
  
In previous articles I explained how to disable or enable all the controls on page using JQuery and many articles relating to JQuery. Now I will explain how to use regular expression to validate email address using JQuery in asp.net.

To implement this one we need to write code as shown below in your aspx page

Enable-disable selected or particular controls on a page using JQuery in asp.net

Introduction: 

Here I will explain how to enable or disable selected or particular controls on a page using JQuery in asp.net.

Description:
  
In previous articles I explained how to disable or enable all the controls on page using JQuery and many articles relating to JQuery. Now I will explain how to disable or enable only selected or particular controls on webpage using JQuery in asp.net.

To implement this one we need to write code as shown below in your aspx page

JQuery how to disable/enable all the controls on asp.net page

Introduction: 

Here I will explain how to disable or enable all the controls in page using JQuery in asp.net.

Description:
  
In previous articles I explained Bind gridview using JQuery in asp.net  and AutoComplete textbox with JQuery using asp.net and many articles relating to JQuery. Now I will explain how to disable or enable all the controls in webpage using JQuery in asp.net.

To implement this one we need to write code as shown below in your aspx page

Difference between char varchar and nvarchar in sql server

Introduction:

In this article I will explain what is the difference between char, varchar and nvarchar in SQL Server.

Description:

In previous post I explained many articles relating to SQL Server. Now I will explain the differences between char, varchar and nvarchar in SQL Server. Actually one of blog reader has asked me question regarding differences between varchar and nvarchar at that time I decided it’s better to write article on this topic.

Char DataType

Char datatype which is used to store fixed length of characters. Suppose if we declared char(50) it will allocates memory for 50 characters. Once we declare char(50) and insert only 10 characters of word then only 10 characters of memory will be used and other 40 characters of memory will be wasted.

Query to remove first, last character from string in sql server

Introduction:

In this article I will explain how to remove first or last characters from string in SQL server.

Description:

In previous post I explained concatenate row values into string and substring function example to replace particular of string in SQL Server and many articles relating to SQL Server. Now I will explain how to write a query to remove first or last character from string in SQL Server. Here I will explain with one example for that I have one string which contains data like this

SQL Server - Query to Concatenate Row Values in SQL Server

Introduction:

In this article I will explain how to write a query to concatenate row values in SQL server.

Description:

In previous post I explained how to concatenate column values in SQL Server and many articles relating to SQL Server. Now I will explain how to write a query to concatenate row values in SQL Server. Here I will explain with one example for that I have one table UserDetails like as shown below

Query to concatenate two column values in SQL Server

Introduction:

In this article I will explain how to write a query to concatenate two columns of data to single column in datatable using SQL server.

Description:

In previous post I explained how to alter or modify or delete or change already existing 

column in datatable in SQL Server and many articles relating to SQL Server. Now I will explain how to write a query to concatenate two columns of data into single column in SQL Server. Here I will explain with one example for that I have one table UserDetails like as shown below

how to bind dropdownlist in asp.net using jquery or JSON

Introduction: 

Here I will explain how to bind dropdownlist using JQuery ajax or JSON in asp.net.

Description:
  
In previous articles I explained Bind gridview using JQuery in asp.net  and AutoComplete textbox with JQuery using asp.net. Now I will explain how to bind dropdownlist using JQuery or JSON in asp.net.

To implement this concept first design table in database and give name as Country as shown below

How to send or pass multiple parameters in jquery ajax in asp.net

Introduction:

Here I will explain how to send or pass multiple parameters using JQuery or JSON in asp.net.

Description:

In previous posts I explained articles relating JSON in that I explained how to call page methods using JSON or JQuery in asp.net or Auto complete textbox with JQuery/JSON in asp.net. Now I will explain how to pass or send multiple parameters using JQuery or JSON in asp.net.

If we want to send or pass multiple parameters using JSON or JQuery in asp.net we need to declare it like as shown below

how to check dataset is null or empty in asp.net | Check dataset contains a data or not

Introduction:

Here I will explain how to check a dataset contains data or dataset is null or empty in asp.net.

Description:

In previous posts I explained many articles relating code snippets in asp.net. Now I will explain how to check if dataset contains any data or dataset is null or empty in asp.net.

If we want to check dataset contains data or not for that we need to write code as shown below

How to send mail with multiple attachments in asp.net

Introduction: 

In this article I will explain how to send mail with multiple attachments in asp.net.

Description:

In previous post I explained how to send mail with attachment in asp.net. Now I will explain how to send mail with multiple attachments in asp.net. During work with one of the application I got requirement like send mail with multiple attachments in asp.net actually we can implement this concept very easily just by adding few lines of code to how to send mail with attachment in asp.net.

Query to return default value if column contains null value in SQL Server

Introduction:

Here I will explain how to write a query to return default value if column contains null value in SQL Server.

Description:

In previous articles I explained how to delete null or empty values from datatable in SQL Server and many articles relating to SQL Server. Now I will explain how to write a query to return default if column contains null value in SQL Server. For that first design one table (UserInfo) in database and enter data like as shown below

Get output parameter from stored procedure in asp.net

Introduction: 

In this article I will explain how to get output parameters returns by stored procedure in asp.net.

Description:

In previous posts I explained many articles relating asp.net, gridview, JQuery, SQL Server etc. Now I will explain how to get output parameters return by stored procedure in asp.net. First we will see how to write a stored procedure to return output parameters for that check this post write stored procedure to return output parameters in SQL Server. Once stored procedure designed in database write the following code in code behind to get output parameters returns by stored procedure in asp.net.

Query to delete null or empty values from datatable in sql server

Introduction:

Here I will explain how to write a query to delete null or empty values from datatable in SQL Server.

Description:

In previous articles I explained many articles relating to SQL Server. Now I will explain how to write a query to delete null or empty values from datatable in SQL Server. For that first design one table (UserInfo) in database and enter data like as shown below

Query to convert lowercase to uppercase characters in SQL Server

Introduction:

In this article I will explain how to write a query to convert or change lowercase to uppercase or uppercase to lowercase characters in SQL server.

Description:

In previous post I explained how to alter or modify or delete or change already existing column in datatable in SQL Server and many articles relating to SQL Server. Now I will explain how to convert or change lowercase to uppercase or lowercase to uppercase characters in SQL Server. Here I will explain with one example for that I have one table UserDetails like as shown below

Query to change the datatype of column in sql server

Introduction:

In this article I will explain how to change or rename datatype of column in SQL server.

Description:

In previous post I explained how to alter or modify or delete or change already existing column in datatable in SQL Server and many articles relating to SQL Server. Now I will explain how to rename or change datatype of column name or table name in SQL Server.

Syntax to modify existing column datatype in table

If we want to modify existing column datatype from data table that syntax will be like this

Add datatable data with comma separated values in string

Introduction:

Here I will explain how to add or bind datatable column data with comma separated values in asp.net.

Description:

In previous article I explained about self join in SQL server, Joins in SQL Server and many more articles relating to SQL Server. Now I will explain how to add datatable data with comma separated values in asp.net.

self join query in sql server | self join example in sql server

Introduction:

Here I will explain how to write self join query in SQL server and self join example in SQL server.

Description:

In previous article I explained about Joins in SQL Server and many more articles relating to SQL Server. Now I will explain about self join in SQL Server.

Self Join

Joining the table itself called self join. Self join is used to retrieve the records having some relation or similarity with other records in the same table. Here we need to use aliases for the same table to set a self join between single table and retrieve records satisfying the condition in where clause.

Alter query to add column with default value in SQL Server

Introduction:

In this article I will explain how to write Query to add new column with default value to existing datatable in SQL server.

Description:

In previous post I explained how to alter or add new column in datatable using SQL Server. Now I will explain how to write query to add new column with default value to existing datatable in SQL Server. During work with one application I got requirement like alter existing table structure to add new column with default value 0(zero). If we want to add new column with some default value to existing table we need to write the query in a format as shown below

Use Case Statement with Select Query in SQL Server | Case Statement Example in SQL Server

Introduction:

In this article I will explain how to write SQL  query to use case statement with select in SQL Server or case statement example in SQL Server.

Description:

In previous posts I explained Distinct keyword with top statement, Replace function, substring function to get particular part of string and many articles relating to SQL Server. Now I will explain how to write query to use case statement in SQL Server.

Generally case statement is conditional statement that will return column value based on the evaluation of set conditions. We can use CASE in statements such as SELECT, UPDATE, DELETE and SET, and in clauses such as select_list, IN, WHERE, ORDER BY, and HAVING.

Jquery autocomplete textbox with multiple words separated by comma or semicolon in asp.net

Introduction:

In this article I will explain how to implement JQuery UI autocomplete textbox with multiple words or values with comma separated or semi colon separated in asp.net.

Description:

In previous articles I explained JQuery autocomplete textbox with asp.net and JQuery autocomplete textbox with images in asp.net and many articles relating to JQuery. Now I will explain how to implement autocomplete textbox with multiple word selection in asp.net.

SQL Server - Query to use Distinct Keyword with Top Statement in SQL Server

Introduction:

In this article I will explain how to write SQL query to use distinct keyword with Top statement in SQL Server.

Description:

In previous posts I explained Replace function, substring function to get particular part of string and many articles relating to SQL Server. Now I will explain how to use distinct keyword with top statement in sql server.

Generally by using Distinct keyword we can get distinct records from datatable that declaration will be like this

SQL Server - Query to Get Last Inserted Record Id

Introduction:

In this article I will explain how to write query to get last inserted record id in sql server or last modified record id value in SQL Server.

Description:

In previous post I explained how to set identity property or auto increment column in data table and many articles relating to SQL Server. Now I will explain how to write a query to get last inserted record id value or last modifies record id in SQL Server. Generally if we create data table we will set identity column or auto increment column in table to increase column id value automatically whenever new record inserted in SQL Server. In one situation I got requirement like to get last inserted record Id from data table in SQL Server.

JQuery html or asp button click event in asp.net

Introduction

In this article I will explain how to use html button click event or asp button click events in asp.net using JQuery.

Description:

In previous article I explained how to show session timeout message before session expires in JQuery. In one situation I got requirement like implement some functionality in html button click event for that I used JQuery button click events. Here I will explain how to implement button click functionality in JQuery for html and asp button controls for that first open visual studio create new application and design your aspx page like this 

JQuery Show Session Timeout message before session expires in asp.net

Introduction: 

In this article I will explain how to show session timeout message before session expires or redirect to login page when user inactive on website using JQuery in asp.net.

Description:
  
In previous article I explained show alert message when user idle or inactive on website using JQuery. I am using that concept here to show session timeout message before session expires when user idle or inactive on website using JQuery in asp.net.

Generally in banking sites if we stay idle for sometime automatically we will get alert like your session is going to expire and it will show options like do you want to continue or Signout. Whenever we click on continue our session will active in that site without any session expire if we click on Sign Out option it will signout from that site and return to home page. We can implement this functionality easily by using available JQuery plug-in.

JQuery show alert when user idle on website for sometime in asp.net

Introduction: 

In this article I will explain how to show alter message when user idle or inactive for sometime on website in asp.net using JQuery.

Description:
  
In previous articles I explained many articles on JQuery. Now I will explain how to show alert message when user idle for sometime on website in asp.net using JQuery.

Generally in banking sites if we stay ideal for sometime automatically we will get alert like your idle for this much time on site and your session is going to expire within 5 minutes or something else we can implement this functionality easily by using available JQuery plug-in. For that first create new website write the following code in your aspx page 

How to access asp.net content page controls from master page

Introduction: 

In this article I will explain how to access or get content or child page controls from master page in asp.net.

Description:

In previous post I explained how to access master page controls from content page in asp.net. Now I will explain how to access content page controls from master page in asp.net.