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 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

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

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

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.

Asp.net send email using c#

Introduction:

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

Description:

In realtime we will use gmail,yahoo,hotmail etc to send mails to particular user here I will show to how to implement mail sending concept in asp.net.

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

What is System.Web.Mail

System.Web.Mail is a namespace which contains classes that enable us 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.

How we can get this reference (System.Web.Mail)

How to disable button after click or during postback and how to change button text after click or during postback in asp.net

Introduction

Here I will explain how to disable button after click or during postback and I will explain how to change the button text after click on button or during postback in asp.net

Description

In many websites we will see disable of button after click on that for getting some content how we can implement that in our application.

Here we need to observe one point that is how we can findout button click and how we can disable button and how we can change text of button during postbacks in asp.net. Here we have chance to get postsbacks by using these statements

SQL Query to get records with or without null values from database

Introduction

Here I will explain how to write a query to retrieve records with or without null values from database in SQL Server.

Description

I have one table with three fields like this 

UserId	Name	City	Education
1	Suresh	Guntur	B.Tech
2	Nagaraju	NULL	MCA
3	Sai		MBA
4	Madhav	NULL	MBBS

Now I need to retrieve records from this table where City not null in this situation I have written query like this.

Query to get only date from datetime in sql server like dd/mm/yyyy, mm/dd/yyyy, yyyymmdd, dd-mm-yyyy etc

Introduction

Here I will explain how to convert or get only date from datetime in different formats like like dd/mm/yyyy, mm/dd/yyyy, yyyymmdd, dd-mm-yyyy etc in SQL Server.

Description

In many situations I got requirement like changing datetime to date and changing the date format to different ways like dd/mm/yyyy or mm/dd/yyyy or dd.mm.yy or yy.mm.dd. We can covert our datetime to date with different formats using different styles. I will display different format of dates with samples check it 

JavaScript make some text non editable - know position of cursor in textbox and disable delete and BackSpace options in keyboard

Introduction

Here I will explain how to make some text non editable in textbox and how to know position of cursor in textbox and how to disable delete and BackSpace buttons in keyboard using JavaScript.

Description

Here I have one country dropdown and one textbox based on the selection of country from dropdown I need to display country codes in textbox. After that user enter mobile number here my requirement is user can edit his mobile number but I don’t want to give chance to edit country code in textbox for that requirement I have written below code

Write following code in your aspx page and check