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aspdotnet-suresh offers C#.net articles and tutorials,csharp dot net,asp.net articles and tutorials,VB.NET Articles,Gridview articles,code examples of asp.net 2.0 /3.5,AJAX,SQL Server Articles,examples of .net technologies

Asp.net show the confirmationbox using javascript

Dec 31, 2010 5 comments
Introduction

Here I will explain how to show the confirmation box using JavaScript in asp.net.

Description

I have one button whenever user clicks on that button I need to show one confirmation box if user clicks on ok button I need to execute code in button click event or if he clicks on cancel button nothing to display and the page should not be postback. How we can implement that one in our application? To implement this concept follow these steps

Design your aspx page like this 

how to restrict user to enter only numbers in textbox using javascript and how to restrict user to enter only 10 digits(mobile number) in textbox using javascript or how to restrict user to enter only alphanumeric in textbox using javascript

Dec 30, 2010 31 comments
Introduction

Here I will explain how to restrict user to allow only numbers in textbox and how to restrict user to enter only 10 digits mobile number using JavaScript and I will explain how to allow only numbers and alphabets in textbox using JavaScript.

Description

I have a one textbox now I need to allow user to enter only numbers not more than that if user try to enter characters or alphabets I don’t want to allow those characters in textbox for that I have written one JavaScript function to allow only numbers and allow only 10 numbers.

how to encrypt and decrypt password and stored in database using asp.net or encrypt or decrypt user password with c#

Dec 28, 2010 47 comments
Introduction

Here I will explain how to encrypt data and save it in database and how to decrypt encrypted data in database using asp.net

Description

First we will learn what is encryption and decryption

Encryption is the process of translating plain text data into something that appears to be random and meaningless.

Decryption is the process of translating random and meaningless data to plain text.
Why we need to use this Encryption and decryption processes

 By using this process we can hide original data and display some junk data based on this we can provide some security for our data.

SQL Server 2008 ERROR: Saving changes are not permitted. The Changes you have made require the following tables to be dropped and re-created.

2 comments
Introduction

Here I will explain how to solve problem in SQL Server 2008 Saving changes are not permitted.

Description

 I installed SQL Server 2008 and I created one new database after that I created one table and saved it everything working fine again I opened newly created table to change column name previously I entered wrong name again I changed column name and if I am trying to save that modifications I got error like this

how to bind Datagridview in windows application using c#.net

Dec 27, 2010 34 comments
Introduction

Here I will explain how to bind Datagridview in windows application using c#.net.

Description

I have started working on windows application at that time I don’t know how to use Datagridview and other controls. I face some problems to bind data to Datagridview and to other controls that’s why I am writing this post to explain how to bind data to Datagridview in windows application. In windows application binding Datagridview is somewhat different when compared with web application Datagridview binding.

Asp.net Read/insert data into XML file and bind data to DataList

Dec 26, 2010 19 comments
Introduction

Here I will explain how to insert data into XML and how to retrieve data from XML and how to bind data to DataList using asp.net.

Description:

XML means Extensible markup language why we need to use this one because by using XML we can store the data and we can easily retrieve and display the data without using database in our applications.if we need to display dynamic data in our application it will take time to conenct database and retrive data from database but if use XML to store data we can do operations with xml file directly without using database. If we store data in database that is incompatible to some of the computer applications but if we store data in XML format it will support for all applications. It is independent for all software applications and it is accessible with all applications.

how to use progressbar control in windows application using c#.net

Dec 23, 2010 12 comments
Introduction

Here I will explain how to use progressbar control in windows application using c#.net.

Description

I have done one windows application in that I have one form like creating user and assigning permission to user during at the time of user creation and displaying that result in one data gridview for this process it’s taking time at that time user don’t know what is happening after button click for that reason I have used progressbar to give hint like processing. Previously I have implemented progress bar during postbacks in asp.net check that article here how to show progressbar during postbacks in asp.net .

how to bind arraylist elements to gridview using asp.net

Dec 21, 2010 17 comments
Introduction:

Here I will explain how to bind arraylist elements to gridview using asp.net.

Description:

In my application we bind some of elements to arraylist items after that we need to bind that elements to gridview upto that I don’t have idea to bind arraylist to gridview. I searched many websites and I found good materials regarding how to bind arraylist items to our gridview.

In arrays we have different types

Asp.net show gridview header when there is no data or empty

Dec 20, 2010 15 comments
Introdcution

Here I will explain how to display or show gridview header even if gridview does not contain data or show gridview header with no records.

Description

 In one application I got requirement like show the gridview header even if grddview does not contain any data. In our applications we will send data to dataset and bind that dataset to gridview to display data on form. In gridview we have property called EmptyDataText by using this property we will display message like "No records Found" if gridview contains empty data. It will display the message but it won’t show header of gridview or anything simply it will display only that message (whatever the message we gave to EmptyDataText property). 

It will display message like this without gridview headers

C# - Move Items from One Asp.net Listbox to Another Listbox

17 comments
Introduction

Here I will explain how to move items from one listbox to another listbox in asp.net using C#

Description

In one application I got requirement like work with listbox control in asp.net. First we will learn what listbox control purpose is and how we can use in our application.

The ListBox control is used to display a list of items to the user that the user can select by clicking. A ListBox control can provide single or multiple selections using the SelectionMode property. This tutorial shows you how to move items from one listbox to other listbox and we can move items by using single selection of item or multiple selection of items.

Asp.net make single radio button selection in gridview using JQuery and change selected row style of gridview with radio button using jQuery

3 comments
Introduction

Here I will explain how to make single radio button selection in gridview using JQuery and how to change selected row style of gridview with radio button using jQuery.

Description

In my application I have designed gridview with radio button after completion of all the functionality if try to select radio button I am able to select all the radio buttons in gridview that is like this 

how to make single radio button selection in gridview using javascript

18 comments
Introduction

Here I will explain how to make single radio button selection in gridview using javascript.

Description

In my application I have designed gridview with radio button after completion of all the functionality if try to select radio button I am able to select all the radio buttons in gridview that is like this 

how to set start up page in windows application using c#.net

9 comments
Introduction:

Here I will explain how to set start up page in windows application using c#.net.

Description:

I have worked on web applications in asp.net I didn’t worked on windows application one day we got requirement to work on windows application at that time I don’t’ know anything about windows application even how to set startup page in windows application. I have searched many websites for this after search long time I found answer for this partially.

Asp.net send email with images using Gmail credentials

13 comments
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

Dec 14, 2010 16 comments
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

8 comments
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 show limited characters in gridview columns using asp.net and how to show the tooltip for gridview rows and cells or how to show limit characters in gridview column using asp.net

Dec 10, 2010 13 comments
Introduction:

In this article I will explain how to show limited characters in gridview using asp.net.

Description:

I have created one application for that we have prepared one feedback form to collect feedback from users regarding our application for that we have taken gridview to bind all the feedbacks into one page. Here some of the users have given one line of feedback some of the users have given two lines of feedback remaining people have given feedback with bigger matter at that time if we bind all the feedbacks to one gridview at that time gridview size has increased a lot and in some rows matter is small but columns size is bigger that is just like this

Asp.net Send Email using Gmail or Gmail SMTP Server

48 comments
Introduction:

Here I will explain how to send email using gmail in asp.net or send email using gmail smtp server in asp.net using c#.

Description:

In our system if we don’t have smtp server for sending mails at that time we can send mails by using gmail smtp server in asp.net. I will show to how to implement mail sending concept using Gmail credentials in asp.net. To implement this concept first you need to enable POP enable in your Gmail account for this Settings-->Forwarding and POP/IMAP

To implement this mail concept in your asp.net application first we need to add this reference to our application System.Web.Mail namespace

how to read or write text file using asp.net

Dec 9, 2010 19 comments

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

Dec 2, 2010 47 comments
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.

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