how to change textbox background color whenever validation fails using asp.net

Introduction:

 In this article I will explain how to change textbox background whenever validation fails using asp.net.

Description:

I have a one requirement like changing the textboxes background whenever validation fails at that time I used the custom validator and JavaScript function to validate textboxes and change the textboxes background color for that write the following code in your aspx page

how to solve Password length minimum: 7. Non-alphanumeric characters required: 1 and how to remove password restrictions, unique email requirement and question and answer options during user registration in Membership using asp.net.

Introduction:

 In this article I will explain how to solve Password length minimum: 7. Non-alphanumeric characters required: 1 and how to remove password restrictions, unique email requirement and question and answer options during user registration in Membership using asp.net.

Description:

In my previous article I explained clearly how to use Custom database for Membership and how to create user with custom database

To create user in database we need to enter password like abcd@123 then it will accept otherwise it will throw error like length minimum: 7. Non-alphanumeric characters required: 1 but I got requirement like register user without strong password restrictions and no need to enter unique email and without Question and answer options at that time I tried to remove problem by setting some properties in web.config. Follow below steps to change our application to work according our requirements.

Create asp.net membership database schema in SQL Server | Create User using CreateUserWizard control in asp.net

Introduction:

 In this article I will explain how to install asp.net Membership database schema in Sql Server.

Description:

In one of my project I got requirement like using asp.net membership concept with custom database. First of all we learn what is asp.net membership? And why we need to use this one?
ASP.NET membership gives you a built-in way to validate and store user credentials. ASP.NET membership therefore helps you manage user authentication in your Web sites. You can use ASP.NET membership with ASP.NET Forms authentication or with the ASP.NET login controls to create a complete system for authenticating users.
By Using ASP.NET membership we can create new users and passwords and we can authenticate users who visit your site. You can authenticate users programmatically, or you can use the ASP.NET login controls to create a complete authentication system that requires little or no code and we can manage passwords, which includes creating, changing, and resetting them.

HttpContext.Current.User.Identity.Name returns null or empty string value

Introduction

Here I will explain how to solve problem of HttpContext.Current.User.Identity.Name returns null or empty string value.

Dsecription

I have one requirement like getting system username based on that check the permissions of user if user has sufficient permission I need to allow that person to view the particular page otherwise I don’t want give chance to show the page for that I have written code to get username like this 

SQL Server- get list of column names and datatypes of a table

Introduction:

Here I will explain how to get the column names and corresponding datatypes in particular table using SQL Server.

Description:

I have one table with lot columns in database at that time I tried to know the column names and corresponding datatypes and their maximum sizes in particular table for that I written the following query in SQL server to get column names and datatypes in particular table.

Ajax Cascading Dropdownlist Sample with database using asp.net

Introduction:

Here I will explain how to use Ajax cascading dropdownlist with database using asp.net

Description:

In my previous article I explained how to populate dropdown based on other dropdown using asp.net now I will explain how to use Ajax cascading dropdownlist in asp.net.

Here I already explained how to populate dropdown based on another dropdown but now why I am explaining about this Ajax cascading dropdownlist because if we use this Ajax cascading dropdownlist we can get the dropdown data without any postback operation and we don’t need to write extra code to disable dropdowns based on otherdropdown selection all the futures available with this Ajax cascading dropdown directly but here we need to write webservices to populate the dropdowns with data. 

how to create online poll system with percentage graphs using asp.net

Introduction

Here I will explain how to create online poll system with percentage graphs using asp.net.

Description:

In many websites we will see online polls like which browser is best browser? We can submit our votes to these polls and they will display result with graphs after seen all these polls I tried to implement simple application for online polls with percentage graphs using as.net.

Here I am using XML to store all the poll options and retrieving all the options and displaying result based on polls options. Here I need to say one thing before implement this application I don’t know the exact purpose of XML whenever I implement this application I got idea regarding XML. XML is used to store the data and we can use it in any application and it will support for all the languages. Here I explained clearly how to insert and retrieve data from XML and how to bind that data to repeater

how to get username in login control using asp.net membership

Introduction

Here I will explain how can we get username and userid of currently logged user in asp.net membership.

Description

I am working on application by using login control in asp.net at that time I got requirement like getting username and user id of logged in user for that I have written code like this to get logged in user username and userid in asp.net membership.

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 Delete gridview records with confirmationbox example

Introduction

Here I will explain how to delete records in gridview with confirmationbox message in asp.net.

Description:

I designed gridview with linkbutton that contains user information details. Here my requirement is whenever user clicks on link button at that time I need to display confirmation message and if user clicks on ok button in confirmation box I want to delete record from database otherwise no action should perform on particular record. For that we need to follow below steps 

Design your aspx page like this