Create an app.manifest file and set the requestedExecutionLevel property with admin rights. Will help software access to retrieve or write data to folders that need access permission to perform.
Experience
Error cannot POST data to the server
Cause: the server space has run out because the log files have taken up all the space, so there is not enough temporary memory to save the POST data.
How to fix: delete unnecessary log files on the server
Images taken from iphone in particular and mobile devices in general when put into the computer will display the wrong dimension
Cause: On mobile devices, in order to display the correct image when the user holds the phone vertically or horizontally to take a photo, the device has changed the orientation attribute (a number) of the image.
| 1 | No rotation |
| 3 | Rotate 180 degrees |
| 6 | Turn 90 degrees clockwise |
| 8 | Rotate counterclockwise 90 degrees |
| NULL | No value exists |
How to fix: have to write a function that uses the orientation parameter to rotate the image correctly
When working, it is necessary to pay attention to the security of information for customers by preventing vulnerabilities in both server side (SQL injection, CSRF, permission, ..) and client side (XSS, ..).
Android App cannot print invoices
Solution: use Printer Functions from the php_printer.dll library of PHP 5.5.x to be able to print invoices for the App
You should carefully study the market and customers’ tastes about the products you want to sell. From there, you can come up with a clear strategy and business plan.
Maintaining relationships with customers is more important than finding new customers.
Do not lower the price of the product when there are many other products and competitors. Instead, keep the same price of the product and increase the promotion for customers.
When buying online, you should touch it with your own hands, check it carefully before handing over money. If you live far away, use COD services from reputable courier services in Vietnam
When we send emails to many customers with the same content, we save time. We should confirm with the manager about sending this email before sending.
BCC is recommended because people added in BCC cannot see people who also receive this email. Meaning in the recipient section there is only their email address.
For CC we should use it internally.